members of lophotrochozoa possess either an lophophore or an trochophore larval stage. are these characteristics an example of synapomorphy
Answers
Yes, possession of lophophore or trochophore is a synapomorphy of Lophotrochozoa, indicating common evolutionary history.
Indeed, the ownership of either a lophophore or a trochophore larval stage is considered a synapomorphy for the clade Lophotrochozoa. Synapomorphies are shared inferred qualities that demonstrate a typical developmental history and give proof to the presence of a monophyletic gathering or clade.
The presence of a lophophore, a specific taking care of construction with ciliated limbs, is a synapomorphy for the phylum Bryozoa and the superphylum Lophophorata, which incorporates the phyla Bryozoa, Phoronida, and Brachiopoda.
The presence of a trochophore larval stage, described by a ring of cilia around the center of the body, is a synapomorphy for the superphylum Trochozoa, which incorporates the phyla Annelida, Mollusca, Nemertea, and others.
The ownership of both of these larval stages in Lophotrochozoa is a synapomorphy that joins the gathering and recognizes it from other creature clades.
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Yes, the possession of either a lophophore or a trochophore larval stage is an example of a synapomorphy in the Lophotrochozoa.
A synapomorphy is a shared derived trait that is present in a group of organisms and their common ancestor, but not in more distantly related groups. In this case, the possession of either a lophophore or a trochophore larval stage is a trait shared by all members of the Lophotrochozoa and their common ancestor.
The lophophore is a specialized feeding structure that is used by certain animals, such as brachiopods, bryozoans, and phoronids, to capture food particles from the surrounding water. The trochophore larval stage, on the other hand, is a distinctive larval stage that is found in several different groups of animals, including annelids, mollusks, and some flatworms. The trochophore larva has a characteristic band of cilia that is used for locomotion and feeding.
The possession of either a lophophore or a trochophore larval stage is considered a synapomorphy in the Lophotrochozoa because it is a derived trait that is shared by all members of this group and their common ancestor, but is not present in more distantly related animals.
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Related Questions
Differentiate between subsistence farming and commercial farming .
only 2 points:)
Answers
Answer:
Difference between subsistence farming and commercial farming
Explanation:
Subsistence farming is done basically to feed the farmers family itself. It has little or no profit.
Commercial farming is done with the intent of profit, where cash crops are sown.
Which term describes the relationship in which one organism lives inside the other one. Check ih correct answer
Answers
Answer:
The term that describes the relationship in which one organism lives inside the other one is endosymbiosis.
Explanation:
The diagram below represents the time a cell spends in the two main phases
of the cell cycle. Which section of the diagram represents the phase during
which the cell divides, and what is this phase called?
A. Yellow area: Interphase
B. Yellow area: M phase
C. Blue area: M phase
0 D. Blue area: Interphase
Answers
Answer:
The yellow ares is m-phase
Explanation:
This is where the cell divides into two nucleus.
The blue area in the diagram represents the phase during which the cell divides, and this phase is called the M phase or mitotic phase. Therefore, option C is the correct.
What is mitotic phase?The mitotic phase, also known as the M phase, is the phase of the cell cycle during which a single cell divides into two identical daughter cells. This process of cell division is essential for growth, development, and repair of tissues in multicellular organisms.
The M phase consists of four stages: prophase, metaphase, anaphase, and telophase. During these stages, the replicated chromosomes condense and align at the metaphase plate, separate and move towards opposite poles of the cell during anaphase, and then decondense and form two separate nuclei during telophase.
The M phase is tightly regulated by a complex network of checkpoint pathways that ensure the accurate segregation of chromosomes and prevent the formation of abnormal cells, which can lead to diseases such as cancer.
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How many hydroxl groups does psilocybin have?
Answers
Answer:
One
Explanation:
Write a 3-5 sentence-paragraph stating the importance of electricity in our daily life.
Answers
what's is different about the digestive tract of the earthworm when compared to the salamander.
Answers
Answer:
The digestive tract of the earthworm and the salamander are similar in some ways, but they also have some differences. Both animals have a simple, linear digestive tract that consists of the mouth, esophagus, crop, gizzard, and intestine. However, the earthworm has a smaller and simpler digestive tract than the salamander.
One of the main differences between the digestive tracts of the earthworm and the salamander is the presence of glands. The salamander has several glands in its digestive tract, including the salivary glands, liver, and pancreas, which produce digestive enzymes and hormones that help to break down food and absorb nutrients. In contrast, the earthworm does not have any glands in its digestive tract, and it relies on the mechanical grinding action of its gizzard to break down food.
Another difference between the digestive tracts of the earthworm and the salamander is the presence of a stomach. The salamander has a muscular stomach that is used to store and churn food, which helps to break it down and mix it with digestive enzymes. The earthworm, on the other hand, does not have a stomach, and it does not have the ability to store food for extended periods of time.
Overall, the digestive tract of the earthworm is smaller and simpler than that of the salamander, and it lacks some of the specialized structures and functions that are found in the salamander's digestive tract.
Explanation:
Write the correct base sequence for complementary DNA and RNA. THEN translate RNA into a protein sequence using the amino acid tables:
DNA sense sequence:
TACCCAATGGAC
DNA antisense sequence:
ATGGGTTACCTG
RNA sequence:
AUGGGUUACCUG
amino acid sequence (write these amino acids as their abbreviations and with periods between them. For instance, a sequence of serine and tyrosine would be written "Ser.Tyr"):
Answers
who discovered cell?
Answers
Answer:
Robert Hooke discovered cells
Answer:
Alexander Fleming discover the cell in our body
what are cork tissues? how are they formed?
Answers
Answer:
Cork is a protective tissue that separates the living cells of the plant from the outside environment. The formation of cork in the periderm is the result of the activity of a secondary meristem, the cork cambium, or phellogen.
Explanation:
Waste must be carried from the cells to the kidneys to be filtered and removed from the
body. Which two body systems must function properly for waste to be eliminated?
Answers
Answer:
Cardiovascular and Urinary
Explanation:
Waste from cells enters the blood and is carried to the kidneys, where it is filtered out of the blood and sent to the bladder for removal from the body.
explain why an action potential only moves in one direction along an axon. be sure to address both the initiation of the moving action potential and the repolarization of the neuron. address both the immediate repolarization and the slower reset of ion concentration gradients. (approximately 200 words)
Answers
An action potential is a brief electrical signal that travels along the axon of a neuron. It is initiated when the membrane potential of the neuron reaches a certain threshold.
When a neuron is at rest, it has a negative membrane potential. The initiation of an action potential occurs when the membrane potential depolarizes, meaning it becomes less negative. This depolarization is usually triggered by the influx of positive ions, such as sodium ions, through ion channels on the neuron's membrane.
Once the depolarization reaches a certain threshold, it triggers the opening of voltage-gated sodium channels along the axon, causing an influx of sodium ions and the propagation of the action potential. Importantly, during this phase, the movement of sodium ions is strictly regulated in a way that prevents backward movement of the action potential.
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Will give brainest!!!!
Why were some researchers known as Gestalt psychologists?
a) They only studied one part of the brain, the part where our ideas originate.
b) They studied perceptual processes by which we organize things into wholes.
c) They were taught by a German psychiatrist, Professor Wilhelm Gestalt.
d) They studied perceptual illusions and how they influenced development.
Answers
Answer:
d
Explanation:
some researchers known as Gestalt psychologists because they studied perceptual illusions and how they influenced development under the principle of Gestalt psychology. Thus option D is correct.
what is Gestalt psychology?Gestalt psychology is a thought process which is based on human mind and behavior, make a sense of the world around us and it suggests that we should not simply focus on every small component.
Gestalt psychology is holism, the school of psychology which has played a major role in the development of the study of human sensation and perception.
It helped to introduce the idea that human perception and heavily influenced by our motivations and expectations. Thus option D is correct.
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What is the energy required to get a reaction started called?
Answers
Answer:
Activation Energy
YW!
Explanation:
What type of fossil forms when an organism gets trapped in sediment, decays
and leaves a cavity or hollow?
A:cast
B:trace
C:mold
D:carbonized
Answers
Answer:
I'm pretty sure its answer C. Which Is mold.
Name the bond which joins two sachharide molecules
Answers
Answer:
glycosidic bond
Explanation:
Hope this helps!!!!!!
certain biologists are currently investigating the role played by spindle fibers in chromosomes movement toward the poles. Check your text for the discussion of one hypothesis, and briefly summarize it.
Answers
The role played by spindle fibers in chromosome movement toward the poles is that certain biologists are investigating the hypothesis that the spindle fibers actively move the chromosomes by exerting force on them.
This hypothesis is based on the observation that spindle fibers are organized in a specific way during cell division and that they are connected to the chromosomes at specific locations called kinetochores.
The explanation behind this hypothesis is that the spindle fibers are composed of microtubules, which are protein structures that can grow and shrink in length. During cell division, the spindle fibers attach to the chromosomes at the kinetochores and then begin to exert force on them by growing or shrinking in length. This force causes the chromosomes to move toward the poles of the cell, where they will eventually be separated into two daughter cells.
While this hypothesis is still being investigated, it has the potential to provide new insights into the complex process of cell division and could lead to the development of new treatments for diseases that involve abnormal cell division, such as cancer.
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A loss of _______ causes a plant to wilt.
Answers
Answer:
Water
Explanation:
A plant needs to maintain moisture in its roots, therefore when it goes long periods of time without water, it wilts.
1) What is the rationale for experimental ablation method?
2) Explain the significance of the sham-lesion procedure.
2a) Explain how the activity of a brain region can be temporarily inactivated.
4) Compare and contrast the visual functions of rods and cones.
4a) Explain how the receptor potential produced in a photoreceptor by light generates action potentials within the retina.
6) Compare the anatomy and function of the dorsal and ventral streams.
6a) Describe the physical and psychological properties of sound.
7) Describe how the organ of Corti transduces sound waves into electrical potentials.
7a) Describe the neural pathways by which auditory signals for audition reach the cortex.
8) Explain how the brain codes for the spatial location of sound.
Answers
1) The experimental ablation method is a way of demonstrating the function of a particular brain region by removing it or inactivating it temporarily or permanently.
2) The sham-lesion procedure involves a similar surgical procedure to that of an ablation but without damaging the target area.
2a) Inactivation of a brain region involves the use of a drug or some other agent to temporarily disable or block activity within a particular region of the brain.
4) Rod cells are the primary photoreceptors for low-light conditions and are found in the outermost layer of the retina
4a) The generation of action potentials in the retina begins when a photon of light strikes a photoreceptor cell.
6) The dorsal stream is responsible for processing the object's location and motion.
6a) Sound is a physical phenomenon that is produced by the vibration of an object.
7) The organ of Corti is the sensory organ in the inner ear that is responsible for transducing sound waves into electrical potentials.
7a) The neural pathways by which auditory signals for audition reach the cortex begin in the cochlea.
8) The brain codes for the spatial location of sound by using several cues, including interaural time differences, interaural level differences, and spectral cues.
1) The rationale for this technique is that by making an animal brain-damaged in some particular region, researchers can learn more about how that region is involved in behavior. The major advantage of experimental ablation is that researchers can gain insights into what a particular brain region does by examining how a damaged brain differs from a normal one.
2) The purpose of this procedure is to create a control group with identical surgery minus the removal or inactivation of the target region. This allows researchers to control for any nonspecific effects of the surgical process.
2a) For instance, the drug muscimol, which is a GABA agonist, can be used to temporarily inactivate a specific brain area by binding to GABA receptors in that area.
4)Cone cells are photoreceptors that are responsible for color vision, visual acuity, and are found in the center of the retina. Rods are more sensitive to light than cones, and they provide better vision in dim light, while cones provide better vision in bright light.
4)The resulting receptor potential then travels from the photoreceptor cell to the bipolar cell, where it is further amplified. The resulting signal is then transmitted to the ganglion cell, which generates an action potential.
6)It sends information from the occipital lobe to the parietal lobe. In contrast, the ventral stream processes object recognition, sending information from the occipital lobe to the temporal lobe.
6a)The sound waves are propagated through a medium such as air, water, or a solid. The psychological properties of sound include pitch, loudness, and timbre.
7)When the basilar membrane vibrates in response to sound waves, the hair cells in the organ of Corti are also set into motion, generating an electrical signal that is transmitted to the brain.
7a) The auditory nerve carries information from the cochlea to the brainstem, where it is processed and sent to the thalamus. From the thalamus, the information is relayed to the auditory cortex in the temporal lobe.
8)The auditory cortex integrates these different cues to determine the location of a sound in space.
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Explain how to distinguish different species by their DNA.
Answers
DNA analysis can be used to distinguish different species by comparing specific regions of their DNA sequences.
To distinguish different species by their DNA, scientists primarily focus on comparing specific regions of the DNA sequences that are highly variable among species. One commonly used region is the mitochondrial DNA (mtDNA), which is inherited maternally and has a higher mutation rate compared to nuclear DNA. Another region is the ribosomal RNA genes (rRNA), which exhibit variations among species.
The process typically involves extracting DNA samples from different organisms, isolating the target region of interest, and sequencing the DNA to determine the nucleotide sequence. The sequences obtained from different species are then compared to identify differences and similarities.
These differences can be used to create DNA profiles or genetic markers specific to each species. Advanced techniques such as DNA barcoding or whole-genome sequencing can provide more comprehensive information and aid in species identification.
By comparing DNA sequences, scientists can uncover genetic variations unique to different species, allowing them to distinguish and classify organisms accurately. This information is valuable in various fields, including taxonomy, conservation biology, forensic science, and evolutionary research.
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A student wants to know how many days it takes for different plant seeds to germinate. What is the student's independent variable?
Answers
Answer:
The independent variable is the pH. Dependent variable is the rate of germination. Controlled variables are light, temperature, soil, moisture, seed specification such as moisture, size, etc.. The independent variable is the temperature.
Explanation:
In an experiment for determining the time required for the seed germination the independent variable will be pH and temperature and the dependent variable will be rate of germination.
What is seed germination?Seed germination can be defined as the sum total of all the events which begin with the hydration of the seeds and culmination in the emergence of the embryonic axis (the radicle) from the seed coat.
In an experiment for determining the time required for seed germination, the independent variable is the pH. Here, the dependent variable will be the rate of germination. The controlled variables are light, temperature, soil, moisture, seed specification such as moisture, size, etc which will be kept constant during the experiment. The independent variable is the temperature which does not depend on any other factor.
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Where is mucus produced in the respiratory tract?
Answers
Submucosal glands is referred to as the area where mucus is produced in the respiratory tract.
What is Respiration?This is referred to as the process in which there is gaseous exchange between cells of the body and it involves the intake of oxygen and the release of carbon dioxide in organisms.
Submucosal glands contains mucous and serous cells and it is present in parts of the body such as the airways, mouth, and gastrointestinal tract etc. It is also the area where mucus is produced as it serves as a lubricant to keep tissues from drying out thereby making it the correct choice in this scenario.
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mendel's study of genetics differed from those of his contemporaries because he
Answers
Mendel's study of genetics differed from those of his contemporaries because of his focus on pea plants, his systematic approach to experimentation, and his use of statistical analysis to draw conclusions about the laws of inheritance.
Mendel's study of genetics differed from those of his contemporaries because he focused on the patterns of inheritance in pea plants, while his contemporaries were more interested in the transmission of traits in animals. Moreover, Mendel's approach was systematic and quantitative, and he conducted controlled experiments that allowed him to isolate and analyze individual traits.
Mendel's approach was also innovative in that he used statistical methods to analyze his data and draw conclusions about the underlying laws of inheritance. He found that traits were inherited independently of one another and that their expression was determined by the combination of dominant and recessive alleles.
This concept of inheritance was groundbreaking at the time because it challenged the prevailing idea of blending inheritance, which suggested that offspring inherited a mix of traits from their parents. Mendel's work laid the foundation for modern genetics, and his discoveries have had far-reaching implications for medicine, agriculture, and evolutionary biology.
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when the temperate outside changes from hot to cold or cold to hot, this will affect your tire pressure group of answer choices true false
Answers
Explanation:
Cold air is more dense (shrinks and loses volume) and hot air is less dense (expands, takes up more space).
when the air outside becomes more dense with lower temps, your tires “lose” air pressure. Actually, the air takes up less volume, it doesn’t really escape.
Proteins, while not typically used for supplying daily calorie needs, can supply the body with ______ kcal per gram.
Answers
Proteins, while not typically used for supplying daily calorie needs, can supply the body with 4 kcal per gram.
What is protein?An incredibly complex, naturally occurring molecule known as a protein is made up of amino acid residues connected by peptide bonds.
What is calorie?Calories are a unit of measurement for the energy content of food and beverages. Our bodies store extra calories as body fat when we consume more calories through food and drink than we burn off. If this keeps happening, we might eventually gain weight.
What calories do?Calories are the units of energy used by your body during food digestion and absorption.
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To much water in a cell that causes it to burst.
Answers
2
3
5
Charle
Marie
O
XX
M
John
x"Y
Fred
?
Based on the pedigree that is shown, which describes John?
carrier for hemophilia
expresses hemophilia
does not have hemophilia
expresses hemophilia and died of complications
Answers
Does not have hemophilia based on the pedigree describes John.
Option C is correct.
What exactly is hemophilia X?Given that males have only one X chromosome, hemophilia is a hereditary condition that runs in the X-linked recessive family. Because of the corresponding X chromosome, females are typically carriers, but heterozygous carriers frequently exhibit hemophilia symptoms.
What is the X chromosome's role in hemophilia?The X chromosome houses the faulty gene that causes hemophilia. Males possess one X and one Y chromosome. As there is no protective X to produce factor VIII or IX in a male, the presence of the faulty gene causes a deficiency or absence of factor VIII or factor IX.
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Explain the type of waste that is suitable for composting in a windrow, and discuss windrow operational aspects. Include in your discussion the advantages and disadvantages of forced air versus natural air circulation.
Answers
Composting in a windrow involves the decomposition of specific types of waste. Suitable waste for windrow composting includes organic materials such as yard waste, food scraps, agricultural residues, and certain types of manure.
Windrow composting is a process that involves the decomposition of organic waste in long, narrow piles called windrows. Suitable waste for windrow composting includes a variety of organic materials, such as yard waste (grass clippings, leaves), food scraps, agricultural residues (crop waste, straw), and certain types of manure. These materials provide the necessary carbon and nitrogen sources for microbial activity and decomposition.
When operating a windrow composting system, several factors need to be considered. Proper layering of waste materials, maintaining adequate moisture levels, and managing temperature are important for the composting process. The windrows need to be regularly turned to ensure even decomposition and oxygen supply to the microbial population.
Regarding air circulation, there are two main methods: forced air and natural air circulation. Forced air circulation involves actively blowing air through the windrows using fans or blowers. This method provides better control over aeration, temperature, and moisture distribution, which can result in faster decomposition. However, it requires energy and infrastructure for the air delivery system.
On the other hand, natural air circulation relies on the natural movement of air through the windrows due to convection. It is a simpler and more cost-effective approach but may provide less control over temperature and moisture distribution. It is important to note that proper windrow design and turning frequency can help facilitate air movement even with natural circulation.
The choice between forced air and natural air circulation depends on various factors, including the scale of composting operation, available resources, and specific requirements. Forced air circulation may be more suitable for large-scale operations where precise control over conditions is necessary. Natural air circulation can be a viable option for smaller-scale operations or in situations where energy consumption and infrastructure costs need to be minimized.
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Describe the internal and external costs of one of the technologies mentioned in the ecological footprint questionnaire (energy)
Answers
Answer:
internal measure human demand on natural capital
external costs are costs that are NOT included in what the business bases its price on. These include: the cost of disposing of the product at the end of its useful life the environmental degradation caused by the emissions,
Explanation:
I'm trying to look for answer to im not sure if it helpful
10) A species is considered introduced when its transport into an area outside of its native range is human mediated. Introductions by humans may be either intentional or accidental. In the U.S. many
economically important species have successfully been introduced and managed: they have not become invasive species. Identify the statement that is NOT CORRECT regarding the positive effects
of
introduced species
A) All Livestock species except the American bison and the turkey are introduced species to North America.
B) Thomas Austin, a British landowner had rabbits released on his estate in Victoria, Australia because he missed hunting them.
Eliminate
Species, such as the wolf, are reintroduced because it has become locally endangered or extinct and this is done in the interest of conservation
D) Many plants, such as the Norway maple and the Japanese maple, have been introduced with the intent of aesthetically improving public recreation areas of private
properties
Answers
Answer:
The introduction of new species in the new area make the specie invasive if there is no predator is present in that ecosystem because the predator helps in the controlling of the population of that invasive species. The big example of invasive species is rabbit in the Australia where rabbit become invasive when there is no predator is present in that region so they increase in population and destroy all vegetation of that region. So if there is no predator of a newly introduced species, it become invasive in future.
Explanation:
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How are plants and animals similar and different as to how they transport molecules throughout their bodies?
Answers
Answer:
Differnces: How they transfer oxygen, and plants use phtosythesis, in plants it goes through the choloplast, in animals it goes to the cytoplasm
Similairties: both use cellular repiration, both use glucose for energy
Explanation:
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Difference - Mammals however use their blood to transport oxygen and carbon dioxide, whereas plants do not use their xylem and phloem solutions to do this.
An interconnecting series of air spaces are used instead.Similarities - Both systems are similar in that they are both made up of a vast array of tubes.
Humans have arteries, capillaries, and veins to move materials through the system, and plants have xylem and phloem to do the same thing. Both systems are moving a combination of liquids and solidsWhat are transporting molecule in plants?The sugar and other organic molecules are transported through the plant by means of a special layer of tissue called phloem.Phloem is composed of living cells that transport a water solution of sugars that we commonly call sap.To know more about transportation in animals here
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