Jean Baptiste Lamarck, a French taxonomist, was the one who originally put up the first verifiable idea of evolution—that an organism's capacity would improve if it used a body component repeatedly—in 1809.
One of the most well-known early evolutionists was Jean Baptiste Lamarck (1744–1829). Contrary to Darwin, Lamarck thought that life progressed steadily upward from the dead substance from simple to more sophisticated forms, ultimately leading to human "perfection." Lamarck argued that there were no mass extinctions of species.
Lamarckism is an evolutionary hypothesis based on the idea that physical changes in organisms throughout the course of their lifetimes, such as increased development of an organ or a portion due to increased use, may be passed on to their progeny.
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The innermost layer of connective tissue of a muscle is the:________
The innermost layer of connective tissue of a muscle is the endomysium.
The endomysium is the innermost layer of connective tissue of a muscle. It is a thin connective tissue layer that encloses each muscle fiber and separates it from neighboring fibers. It also includes capillaries and nerves that supply muscle fibers. The endomysium is made up of a delicate web of reticular fibers and collagen fibers. The collagen fibers of the endomysium blend with the perimysium, which is the next layer of connective tissue that encloses bundles of muscle fibers. The outermost layer of connective tissue that covers the entire muscle is the epimysium, which is made up of dense collagen fibers. Together, the endomysium, perimysium, and epimysium form a continuous network of connective tissue that provides structural support and maintains the shape of the muscle.To learn more about the Connective tissue of muscles Please visit:
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9. Pick the wrong word out of the following:
Pesticide/Horticide/Herbicide/Weedicide/insecticide
Answer:
Horticide
it is just a term which means "opposed to horticulture
Explanation:
i hope this will help you :)
Answer:
The answer is HORTICIDE
Explanation:
This is because this mainly deals with HORTICULTURE.
Horticulture mainly deals with garden cultivation and its management.
Drag and drop the words or phrases that accurately complete the paragraph.
Florida's climate influences the weather, wildlife, and even human behavior. Around 75% of Floridians live on or near the . As a result, many of Florida's business industries revolve around resources. The largest industry in Florida, , relies heavily on the preservation of natural areas. In addition, natural wetlands, such as the Everglades, are essential for replenishing Florida's largest freshwater supply, the .
Everglades
Florida aquifer
land
agriculture
Lake Okeechobee
coastline
marine
tourism
Florida's climate influences the weather, wildlife, and even human behavior.
The climate of FloridaAround 75% of Floridians live on or near the coastline. As a result, many of Florida's business industries revolve around tourism.
The largest industry in Florida, tourism, relies heavily on the preservation of natural areas. In addition, natural wetlands, such as the Everglades, are essential for replenishing Florida's largest freshwater supply, the Florida aquifer.
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Which animal will have more biotic potential. A rabbit who gives birth in 4 months or an elephant who gives birth in 18 months? Why?
Answer:
I suppose that a rabbbit who gives birth in 4 months sounds correct.
Explanation:
Biotic potential is described by the unrestricted growth of populations resulting in the maximum growth of that population. Biotic potential is the highest possible vital index of a species; therefore, when the species has its highest birthrate and lowest mortality rate. So the rabbit giving birth in 4 months has better Biotic Potential because it has a more higher rate in population compared to the elephant.
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Christina is worried that her traits are completely determined by the genes passed on to her from her parents. Which of these is least likely to be affected by heredity?.
Option a Christina is worried that her traits are completely determined by the genes passed on to her from her parents. personality likely to be affected by heredity.
The transfer of traits from one set of parents to another is known as heredity, often known as inheritance or biological inheritance. Whether through reproduction, the offspring cells or organisms acquire the genetic makeup of their parents. Genes, also known as alleles, can occur in multiple forms and are responsible for determining hereditary features. Each gene in our cells has two copies (with the exception of genes located on chromosomes). Both the sperm and the egg contribute to one of the copies. These two copies, also known as alleles, may not be identical in a single person. We refer to an individual as homozygous for a gene if the two copies of the gene are identical. A gene is heterozygous if its two copies are distinct.
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The Diagram shows structures that form the surface of the trachea.
Which level of organisation is the structure labelled S ?
A. Cell
B. Organ
C. Organ system
D. Tissue
Structure S is a simple columnar epithelium, which is a type of tissue.
The diagram shows the structures that form the surface of the trachea. The trachea is a tube that carries air from the lungs. The surface of the trachea is lined with a layer of tissue called the epithelium. The epithelium is made up of cells that line the inside of the trachea.
The structure labelled S is a type of epithelium called a simple columnar epithelium. Simple columnar epithelia are made up of cells that are arranged in a single layer. The cells in a simple columnar epithelium are tall and column-shaped.
The simple columnar epithelium in the trachea helps to protect the trachea from infection. The cells in the epithelium produce a mucus that traps dust and other particles. The mucus is then carried away by the cilia, which are tiny hairs that line the trachea.
The other levels of organization in the diagram are organ, organ system, and cell. The trachea is an organ, which is a collection of tissues that work together to perform a specific function. The respiratory system is an organ system, which is a group of organs that work together to perform a common function. Cells are the basic units of life, and they are the building blocks of tissues, organs, and organ systems.
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A doctor counts the number of asthma attacks a person has after switching medications. Which type of data is she collecting? Quantitative data qualitative data experimental data observational data
Answer:
Quantitative data
Explanation:
The collection of data is very key to any experiment as it is the way in which the results of what is being tested is analysed. There are however, two ways to scientists collect data in their investigation. These ways are quantitatively and qualitatively.
Quantitative data collection involves the type that has to do with numbers or counts while qualitative data does not deal with numbers. In this question, a doctor counts the number of asthma attacks a person has after switching medications. The COUNTING represents that the type of data collected by the doctor is QUANTITATIVE.
Answer: Quantitative Data
Explanation:
What does the invasive species “Kudzu” eat? Explain in a short 2-3 sentences
Kudzu as any other plant is an autotroph, that is to say, it produces its own food, in this case through photosynthesis, thanks to chlorophyll it captures light from the sun and along with CO₂produces the needed glucose to sustain energetic input in the cells. Another factor is the soil from which obtains nitrogen phosphorus and other minerals necessary to maintain cell function.
Two plants each have a gene that determines pea pod color. in one plant, this gene produces yellow pea pods. in the other plant, this gene produces green pea pods. what are these variations of pea pod genes called
The variations of pea pod genes of two plants having a gene that determines pea pod color are alleles.
What are alleles?Alleles are variations of the same nucleotide sequence at the same position in a long molecule of DNA, as described in major textbooks on genetics and evolution. "The chromosomal or genomic location of a gene or other genetic element is called a locus, whereas alternative DNA sequences at the locus are called alleles."
Alleles belong to pairs of genes that occur at a specific location on a specific chromosome and control the same trait. Blood type or color blindness. Alleles are also called allele types. Blood type is determined by alleles inherited from parents. Humans are called diploid organisms because they have two alleles of her at each locus and from each parent he inherits one allele. Each pair of alleles represents a genotype of a particular gene.
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Which statements summarize absolute and relative age?
Answer: Relative age involves a comparison.
"I am 35 years old" is a statement of absolute age. Rocks can be dated using both absolute age and relative age. Geologists use both absolute dating and relative dating
Explanation: Did it on edge hope this helps. Have a good day! :)
what is photosynthesis
Photosynthesis is a synthesis of compounds with the aid of radiant energy especially in plants.
Radiant energy it transmitted in the form of electronmagnetic radiation; energy that exists in the absence of matter.
Synthesis is the process of producing a chemical compound usually by the union of simpler chemical compounds.
The combination of ideas into a complex whole.
Reasoning from the general to the particular or from cause to effect.
how does calcitonin hormone decrease the concentrations of calcium in the blood
Answer:
It inhibits the activity of osteoclasts, which are the cells responsible for breaking down bone.
Answer:
Calcitonin reduces calcium levels in the blood by two main mechanisms: It inhibits the activity of osteoclasts, which are the cells responsible for breaking down bone.
PLEASE WRITE IN OWN WORDS, HELP!
Answer:
Evolution means change in the physical features of an organism.
Explanation:
Evolution means change in the physical features of an organism. Evolution occurs in the population of an organisms due to various factors such as mutation, non-random mating and natural selection. Nonrandom mating occurs when an organism prefer mating with particular superior organisms or with the similar organism. Mutation in the genetic makeup of an organism is also responsible evolution. this mutation occurs when an organism experience ultraviolet radiation from the sun, or also occur if an error in DNA during cell division. Gene flow is also known as gene migration is the transfer of genetic material or traits from one population to another when the organism is migrated to another environment. Some organisms are selected naturally because they have the potential to survive in that environment so they survive and that doesn't adopt itself to the environment, it will extinct from the environment.
What part of Isaac Newton’s childhood led him to become so defensive and hostile toward any criticism of his work?
Answer: Issac became stubborn and defensive because of the fierce nature of siblings and commanding nature of his second father and mother. Due to the stubbornness of his family member he had to leave his study in early childhood and engage in farming which he left ultimately to pursue higher studies.
Explanation:
researchers have found a single drosophila gene that can generate about 19,000 membrane proteins that have different extracellular domains. at least 17,500 (94%) of the alternative mrnas are actually synthesized. how is this accomplished?
This case is clearly accomplished by Alternative splicing.
A molecular process called alternative splicing alters pre-mRNA structures before translation. By combining coding sequences (exons) from recently spliced RNA transcripts in various ways, this mechanism can generate a variety of mRNAs from a single gene.
Different combinations of exons from the same gene are combined in alternative splicing to produce various protein products. These various splice variants frequently express themselves in various tissues. This enables the production of a wider variety of proteins.
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The sun produces energy from matter in its core through the process of
Earth science.
Answer:
Nuclear fission is right answer
hope it helped you:)
Name two carbon compounds that can be found in the atmosphere?
Answer:
These include the carbon oxides, hydrocarbons, and halocarbons (molecules with carbon bonded to F, Cl, Br, or I).
Explanation:
if aabb is mated to match aabb what is the probability that the offspring will have either the penotype aab-or the genotype aabb
When mating two parents with the genotype aabb, the offspring has a 50% chance of having either the phenotype aab- or the genotype aabb.
This is because half of the offspring will receive one allele from each parent, and half will receive two alleles from one parent. This means that the probability of having either the penotype aab- or the genotype aabb is 0.5 x 0.5 = 0.25, or 25%.
If two organisms with the genotype aabb are mated together, the probability that their offspring will have either the phenotype aab- or the genotype aabb is 50%.
This is because the probability of any one allele passing from parent to offspring is 50%. Therefore, the probability of both alleles passing from parent to offspring is 50% x 50% = 25%, giving the same probability for either of the two alleles passing from parent to offspring to be 50%.
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You are leading an effort to reduce the formation of a dead zone in the Gulf of Mexico during the summer. You are tasked with selecting which company should be hired to help treat water runoff in the area. You provide both companies with identical samples of the water to be treated. The table below shows the results. To which company do you award the contract and why?
a) l would choose company 1 because they decreased metals the least, and metals kill microbes.
b) I would choose company 1 because they reduced nitrate and phosphate fertilizers the most and these fertilizers contribute to dead zone formation.
c) I would choose company 2 because they decrease the nitrate and phosphate fertilizers the least and these are important for plant and algae growth.
d) I would choose company 2 because they reduced the metals the most and metals are the most harmful contaminant of those listed.
Answer:Dead zones are places where organisms cannot survive due to the low amount of oxygen in the water.
One of the causes of dead zones is a large number of fertilizers in the water. The increase in fertilizers contributes to the development of aerobic bacteria (which consume all the oxygen in the water) and later of anaerobic bacteria.
So option "b" is correct. Company 1 reduced the amount of nitrate and phosphate based fertilizers (dead zone causes).
Which correctly distinguishes between how a pine tree and an apple tree reproduce?
the pine tree bears flowers; the apple tree does not have any flowers.
the pine tree has unprotected seeds; the apple tree has seeds in fruit.
the pine tree is vascular; the apple tree is a seedless, nonvascular plant.
the pine tree is nonvascular; the apple tree is vascular.
the pine tree has unprotected seeds; the apple tree has seeds in fruit.
The pine tree has unprotected seeds. The apple tree has seeds in fruit correctly distinguishes between how a pine tree and an apple tree reproduce.How do pine trees reproduce?Pine trees produce seeds to reproduce. Pine trees produce seeds that are found on scales of structures known as cones, as opposed to deciduous trees, which produce seeds that are surrounded by fruit (pine cones). Cones, the male and female reproductive organs of pine trees, are both present. The same tree is home to both male and female cones.How do apple trees reproduce?Pollen is transferred from the male organ, or stamen, of one blossom to the female organ, or pistil, of another in flowering plants, including apple trees. Few apples with naturally occurring seeds have any real commercial value; the fruit is frequently tiny, bitter, and varies from tree to tree.To learn more about distinguishing between pine tree and apple tree visit:
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Answer: The correct answer is the pine tree has unprotected seeds; the apple tree has seeds in the fruit.
Explanation: Confirmed correct.
A nucleus acid with double strands contains the nitrogenous bases adenine, thymine, cytosine, and guanine. What type of nucleus acid is this/where is it found in the cell?
A boat carries two teams of scuba divers to the middle of the Atlantic Ocean, where they remain for the day. One team of divers stays close to the surface. They explore the
surface waters within a distance of 1000 meters from the boat. The second team of divers descends to a depth of 1000 meters below the surface.
• Which team will be able to observe the greater variety of living things in the waters they visit? Explain your answer.
The team that would observe the greater variety of living things in the waters they visit is the second team.
What is the team that sees the greatest variety of living things?We have to note that the aquatic ecosystem has a great degree of biodiversity. This implies that there are several kinds of organisms that can be found in the ecosystem that exists in the water that is under study.
Recall that just like every other ecosystem, the ecosystem that you can find in the water is completely a self supporting ecosystem. There a re producers, consumers and decomposers as in every other ecosystem that we have.
The biodiversity in the ocean increases as we move down towards the bottom of the ocean as most of the organisms tend to live in the benthic zone which is the zone that is very cold and about 1000 meters below the surface.
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Why do plant cells need a high osmotic pressure?
Answer: Osmotic pressure is the main cause of support in many plants. When a plant cell is in a hypotonic environment, the osmotic entry of water raises the turgor pressure exerted against the cell wall until the pressure prevents more water from coming into the cell.
Explanation:
the energy in living systems is used by organisms for what purpose?
Answer:
a
Explanation:
What is parasitic mode of nutrition? Explain with examples.
Answer:
Explanation:
ANSWER 1) Parasitic nutrition is a mode of heterotrophic nutrition where a parasitic organism lives on the body surface or inside the body of another type of organism (a host)
Examples of parasitic mode of nutrition are mosquito, ticks, lice, bedbugs , tapeworm
because lives on the body surface or inside the body of other organism called host.
ANSWER 2 ) Organisms that live in or on other organisms and acquire food at the expense of its host are called parasites. Most parasites are harmful to the hosts’ health; sometimes, they even kill the host. Both animals and plants may serve as a host. Unlike commensalism, the parasite causes some harm to its host. A few examples of parasites are louse on a human head, Cuscuta plant and tapeworms.
Cymothoa exigua is an unusual parasite. It is also known as the tongue-eating louse and is aptly named so as it is found in the mouth of the marine fish Lithognathus. It essentially severs the fish’s tongue, cutting off the blood supply and causing the tongue to fall off. The louse then attaches itself to the remains of the tongue and essentially acts as the fish’s new tongue.
u can choose which one to write :)
Explanation:
Parasitic nutrition is a mode of heterotrophic nutrition where an organism lives on the body surface or inside the body of another type of organism .
using the additive rule, determine the probability of having a heterozygous genotype in the f2 generation. please report the number as a fraction and as a percentage and show your work.
The probability of having a heterozygous genotype in the F2 generation using the additive rule is 1/4 or 25%.
The additive rule can be used to calculate the probability of an event happening either one way or the other way. It applies to the situations where there are two or more ways in which an event can happen. The additive rule states that the probability of an event happening either one way or the other way is equal to the sum of their individual probabilities.
For example, if the probability of an event happening one way is 0.4 and the probability of it happening another way is 0.6, then the probability of it happening either way is 0.4 + 0.6 = 1.0.
The probability of having a heterozygous genotype in the F2 generation can be determined using the additive rule.
Let P(heterozygous genotype in F2 generation) = p
The probability of getting heterozygous offspring from heterozygous parents is 0.5.
Therefore, the probability of getting a heterozygous F1 generation from the F1 generation is 0.5.
Hence, we can assume P(heterozygous genotype in F1 generation) = 0.5.
Using this, we can calculate P(heterozygous genotype in F2 generation) as follows:
P(heterozygous genotype in F2 generation) = P(heterozygous offspring from F1 generation) × P(heterozygous offspring from F1 generation)= 0.5 × 0.5= 0.25
Now, we need to represent this probability as a fraction and as a percentage. The fraction form of probability is:
P(heterozygous genotype in F2 generation) = 0.25 × 100%= 25%
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Both anaerobic and aerobic respiration use regenerated to NAD* by
to produce ATP and NADH. In anaerobic respiration, NADH is
Y. while in aerobic respiration, electrons from NADH are deposited in the
to regenerate NAD*. Anaerobic respiration produces
ATP per molecule of glucose
compared to aerobic respiration.
While both anaerobic and aerobic respiration involves the regeneration of NAD+ and the production of ATP, the specific processes and final electron acceptors differ, leading to variations in ATP yield.
Both anaerobic and aerobic respiration involves the regeneration of NAD+ to produce ATP and NADH. However, there are some differences in how this occurs between the two processes. In anaerobic respiration, since oxygen is not available as the final electron acceptor, an alternative molecule, such as an inorganic compound or an organic molecule, is used.
This molecule accepts the electrons from NADH, resulting in the regeneration of NAD+ and the production of ATP. The specific molecule that accepts the electrons can vary depending on the type of anaerobic respiration occurring. For example, in lactic acid fermentation, pyruvate accepts the electrons from NADH, forming lactate and regenerating NAD+.
Anaerobic respiration produces fewer ATP molecules compared to aerobic respiration because the final electron acceptor in anaerobic respiration has a lower energy yield than oxygen. In aerobic respiration, each molecule of glucose can produce up to 36-38 ATP molecules, while anaerobic respiration typically yields around 2 ATP molecules per molecule of glucose.
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what should you expect to observe if a pea plant that is homozygous dominant for a certain trait is crossed with a pea plant that is homozygous recessive for that trait?
Suppose a pea plant that is homozygous dominant for a particular trait is crossed with a pea plant that is homozygous recessive. In that case, the offspring will be heterozygous dominant for that trait.
For the homozygous dominant pea plant, the genotype will be 'TT' (for say) for that trait and the homozygous recessive will be 'tt' for that trait. Now when the gametes will be formed, one allele will be taken from the homozygous dominant parent plant and one will be taken from the homozygous recessive parent plant. This will result in the formation of the 'Tt' genotype in the offspring. 'T' being a dominant trait will suppress the trait of 't'.
Since the parents are homozygous for the traits the same combinations will be present in all the offspring formed. Thus, depicting a dominant phenotype of that trait in the pea plant.
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Which of the following is TRUE about stem cells
A) stem cells can only turn into liver cells
B) stem cells are not found in humans
C) stem cells are illegal to study
D) stem cells can differentiate into many types of cells
Answer:
I think it’s D
Explanation:
Bacteria may donate DNA to other bacteria of the same. Select one: a. species only. b. or of a different species, and also some eukaryotic cells.
Bacteria may donate DNA to other bacteria of the same species as well as bacteria of different species, and in some cases, even to certain eukaryotic cells.
Bacterial cells have the ability to transfer genetic material to other bacteria through a process called horizontal gene transfer. This transfer can occur between bacteria of the same species (intraspecies transfer) or between bacteria of different species (interspecies transfer). Additionally, under specific conditions, bacteria can also transfer DNA to certain eukaryotic cells.
1. Intraspecies Transfer: Bacteria of the same species can exchange genetic material through mechanisms such as conjugation, where there is direct cell-to-cell contact and the transfer of plasmids (small circular DNA molecules) carrying specific genes. This process allows for the sharing of beneficial traits or resistance genes among members of the same bacterial species.
2. Interspecies Transfer: Bacteria can also transfer genetic material to bacteria of different species. This can occur through processes like transduction, where genetic material is transferred by bacteriophages (viruses that infect bacteria) acting as carriers. Bacteriophages can package bacterial DNA into their capsids during replication and subsequently infect bacteria of different species, thus transferring the DNA between them.
3. Transfer to Eukaryotic Cells: Although less common, certain bacteria have the ability to transfer DNA to eukaryotic cells under specific circumstances. For example, the bacterium Agrobacterium tumefaciens can transfer a segment of its DNA (known as T-DNA) into the genomes of plant cells, leading to the formation of plant tumors. This process is utilized in genetic engineering techniques to introduce desired genes into plants.
In summary, bacteria have the capability to donate DNA to other bacteria of the same species as well as bacteria of different species through various mechanisms such as conjugation and transduction. Additionally, in specific cases, bacteria can transfer DNA to certain eukaryotic cells, allowing for genetic changes and potential impact on the recipient organisms.
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