Marine ecosystems are aquatic environments with high levels of dissolved salt, such as those found in or near the ocean.
What are most marine organisms?
Plankton are the most common. Plankton make up one of three major groups of marine life. The other two groups are nekton and benthos (Figure below). Living things in the oceans are placed in these three groups.
What are marine organisms called?
The animals inhabiting the sea are called marine organisms. Marine organisms may be classified as Nektonic, Planktonic, or Benthic. The distribution of marine organisms depends on the chemical and physical properties of seawater, ocean currents & penetration of light.
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Which of the following are NOT criteria for the definition of a species? A. Produce fertile offspring B. Can Interbreed C. Share physiological characteristics D. Has the same DNA sequence
Answer:
C) Physical characteristics.
What distinguishes an amniotic egg from eggs laid by other animals, including fishes, amphibians, and invertebrates?
Answer: Structure
Explanation: Im pretty sure that the eggs from different living organisms may have different structures and features to it. Ofc there would be similarities but also differences in growth etc.
does photosynthesis use the sun
Answer: Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
Explanation:
Answer:
Yep
Explanation:
The sun gives energy to the plant that lets the plant change CO2 (Carbon Dixoide) into a sugar called glucose.
In Florida, soapberry bugs have historically fed upon balloon vine fruits, which produce large fruits. Soapberry bugs that feed on these fruits have relatively long mouthparts. After the goldenrain tree was introduced as an ornamental plant in Florida, some populations of soapberry bugs became specialists and ate only goldenrain tree fruits, which produce small fruits. These specialized soapberry bug populations, on average, have shorter mouthparts than the populations that feed on balloon vine fruits. If a population of soapberry bugs from a balloon vine were experimentally moved to a goldenrain tree, what would you expect to happen over time?In your answer, include definitions of natural selection and evolution in your own words.
Answer:
It is expected that the introduced population decreases because they have a minor adaptive response to survive in this new environment in comparison to its competence (i.e., specialized populations of soapberry bugs).
Explanation:
Natural selection is represented by the evolutionary processes that will select for survival to those individuals with higher adaptive fitness, which in this case is represented by the ability to obtain resources (food). In concequence, and according to the evolution theory, these introduced individuals will have less chances to reproduce in order to perpetuate their genes in the next generation.
Microbes that normally live on skin, guts and other places in human skin is?
Does the pharynx of human respiratory system have cartilage and epithelium?
Answer:
There is no cartilage but there is epithelium
Explanation:
The pharynx of the human respiratory system does not contain cartilage.
The pharynx, part of the human respiratory system, is a muscular tube that connects the nasal cavity and mouth to the larynx and esophagus. It serves as a passage for air and food. The gorge is made up of several regions, each with its own distinctive features.
The nasopharynx, the top part of the throat, contains no cartilage. Instead, it is lined with pseudostratified ciliated epithelium.This special epithelium helps to trap and transport mucus along with any particles or pathogens in the digestive system for elimination.
These regions also lack cartilage but are lined with stratified squamous epithelium. This type of epithelium provides protection from mechanical stress and potential abrasion caused by the passage of food and other substances down the pharynx.
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Why is environmental science important environmental science addresses (1)____ strategies so we utilize our natural resources efficiently. It also provides us with knowledge on how to lead an (2)_____ lifestyle
1. Recycling, business, social
2.luxurious, healthy, eco-friendly
Environmental science deals with biology along with geography and the environment. It addresses a recycling strategy and aids in leading an eco-friendly lifestyle.
What is a recycling strategy?A recycling strategy is a technique that includes the waste material into reusable material so that the pollution is reduced and the product is used efficiently.
The sciences aid in leading an eco-friendly life as they reduce the negative impact on the environment and make the world a better place.
Therefore, recycling and eco-friendly are the correct blanks.
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Explain the term "molecular clock" and describe the types of measurements and comparisons that can be made with this type of clock.
Be sure to answer this question in paragraph form, using complete sentences.
A "molecular clock" is any technique that may be used to calibrate the age of a species / taxonomic group by using the mutation rate of one genomic sequence.
What is the mutation rate?The mutation rate is the time required for one sequence to mutate (change) in its nucleotide bases.
The mutation rate is used to estimate the age of one species by molecular clocks that estimate nucleotide differences in a given period of time.
In conclusion, a "molecular clock" allows estimating the age of a species by using the mutation rate.
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1. The ideal osmotic environment for an animal cell is a(n) environment. 2. An animal cell placed in a(n) solution will gain water, swell, and possibly burst. 3. There is a net diffusion of water out of an animal cell when it is placed in a(n) solution. 4. The ideal osmotic environment for a plant cell is a(n) environment. 5. A plant cell placed in a(n) solution will lose water and plasmolyze. 6. A plant cell surrounded by a(n) solution will be flaccid (limp).
The respect words to fill in the gaps would be as follows
1. Isotonic
2. hypotonic
3. hypertonic
4. Hypotonic
5. hypertonic
6. Isotonic
The ideal osmotic environment for an animal cell is an isotonic environment. That is, an environment with a solution that has the same solute concentration as the cytosol.
An animal placed in a hypotonic solution will gain water, swell, and possibly burst because there is a net movement of water from the solution to the cytosol due to the osmotic gradient. A hypotonic solution is one with a lower solute concentration than that of the cytosol.
When an animal cell is placed in a hypertonic solution, a solution that has more solute concentration than the cytosol, there is net diffusion of water out of the cell into the surrounding solution.
The ideal osmotic environment for plant cells is a hypotonic environment. That is, an environment with lower solute concentration compared to the cytosol. A plant cell placed in a hypertonic solution would lose water and become plasmolyzed. In an isotonic solution, a plant cell would become flaccid because there would be a lack of turgor pressure as a result of inadequate water in the cells.
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Suppose a human population exhibits a Type III survival curve. What would you expect to happen to the curve over time if a dramatic improvement in medical technology takes place
Answer:
The curve will become convex
Explanation:
A survivorship curve is a graph that displays the proportion of individuals capable of surviving based on their age ranges or other population parameters such as, for example, the survival rate of males and females. A Type III survivorship curve has a concave shape because individuals exhibit a high death rate immediately after birth. Examples of species that show a Type III curve include, among others, insects, fishes and small mammals.
How is selective pressure related to evolution?
A. Selective pressure can be a driving force of evolution.
B. Selective pressure is the same as evolution.
C. Selective pressure ensures that evolution has an end product.
D. Selective pressure causes evolution to proceed randomly.
Selective pressure can be a driving force of evolution; option A.
What is selective pressure?Selective pressure refers to external forces which affect an organism's ability to survive in a given environment.
Selective pressure can either decrease or increase the occurrence of a trait.
Therefore, selective pressure can be a driving force of evolution.
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what forms between daughter plant cells near the end of the telophase and during cytokinesis
Answer:
a cell plate forms along the metaphase plate, growing inward from the sides of the rectangular plant cell.
Explanation:
Nelly was reading about
The diatoms organism is the subject of the article, and they are utilized as insecticides since they are abrasive against pests.
The correct option is B.
What are diatoms?Diatoms are a type of photosynthesising algae that can be found practically wherever that is moist, including soils, freshwater bodies of water, and the ocean. They contain a siliceous skeleton called a frustule. Diatoms are categorized as eukaryotes, which distinguish them from prokaryotes like bacteria and archaea by having a nuclear envelope-bound cell nucleus.
What kind of diatom is an example of?The following are some prominent diatoms: A mucilaginous layer covers the elongated, elliptical pinnular diatom. The genus is a member of the order Naviculales, class Bacillariophyceae, and family Pinnulariaceae.
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The complete question is-
Nelly was reading about ecological pesticides. She found a website that said that skeletons of some organisms settle as sediments in the ocean. They are then used as pesticides because they are abrasive against pests. Which organism is the article discussing?
a-dinoflagellates
b-diatoms
c-green algae
d-euglenoids
e-amoeba
A cross section is taken from a dorsal root ganglion. Upon observation, it is noted that the section is full of cell bodies. These cell bodies belong to what order of neuron?
a. first
b. second
c. third
d. It could be any of these options.
Answer:
Option a
Explanation:
The first order neurons are also termed sensory neurons. The dorsal root ganglion is made up of cell bodies of sensory neurons which possess axon that help in the relay of information to the central nervous system mainly the spinal cord.
A marine biologist and cancer researcher worked together to isolate the green fluorescent protein (GFP) gene from a sample of jellyfish DNA. Scientists have successfully inserted this gene into a cancerous tumor in humans in order for the tumor to glow so it can be more easily removed during surgery. Once extracted from the jellyfish, how can scientists produce multiple copies of the GFP gene for medical applications?
A: Gel electrophoresis
B: Polymerase chain reaction
C: Restriction enzyme digestion
D: Transgenic technology
With the help of polymerase chain reaction, can scientists produce multiple copies of the GFP gene for medical applications.
What are the features of polymerase chain reaction?The polymerase chain reaction is a method widely used to rapidly make millions to billions of copies of a specific DNA sample.
PCR is based on three simple steps required for any DNA synthesis reaction: (1) denaturation of the template into single strands; (2) annealing of primers to each original strand for new strand synthesis; and (3) extension of the new DNA strands from the primers.
As PCR progresses, the DNA generated is itself used as a template for replication, setting in motion a chain reaction in which the original DNA template is exponentially amplified.
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please help!! what’s 11 and 14?
Denise, who is Type A, negative, has a father who is Type O positive. She has children with David, who is Type AB positive, and whose mother is Type B negative. Give the genotypes of Denise and David, and give the phenotype ratio of the children they could produce.
Answer: Denise AO -
David AB +
children 2 (A): 1 (B): 1 (AB) all positive
Explanation:
Hopetown is farther from the equator than kamina. Which location has colder air temperature and why
Answer:
Hopetown
Explanation:
The farther from the equator the colder the air temperature. This is because the equator is the point on planet Earth that receives the largest amount of solar energy, so the regions that are above this line are the warmest in the entire planet. The further away from the equator a region is established, the less solar energy it receives, which is why the poles are so cold. In this case, we can say that the Hopetown temperature is colder than the kamine temperature.
What might happen if water molecules didn't have a slight negative charge on one end and a slight positive charge on the other?
The polarity of water molecules is crucial to the formation and stability of cell membranes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes .
Water molecules are composed of two hydrogen atoms and one oxygen atom, and they have a slight negative charge on one end and a slight positive charge on the other.
This arrangement is due to the unequal sharing of electrons between the atoms, with the oxygen atom having a stronger pull on the electrons than the hydrogen atoms. This phenomenon is called polarity, and it is crucial to the unique properties of water.
First, water molecules would not be able to form hydrogen bonds with each other, which are crucial for many of water's unique properties. Hydrogen bonds occur between the positive and negative ends of different water molecules and give water its high boiling point, high surface tension, and the ability to dissolve many substances.
Furthermore, the polarity of water molecules is crucial to the formation and stability of cell membranes. The hydrophilic, or water-loving, heads of phospholipids are attracted to the polar water molecules, while the hydrophobic, or water-fearing, tails face away from the water.
In summary, the polarity of water molecules is crucial to many of its unique properties and is essential to many biological processes. Without this polarity, water would not be able to form hydrogen bonds, interact with polar molecules, or form stable cell membranes.
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How do you think scientists figure out the life cycle of a star
Answer:
space
Explanation:
they figured it out going to space and since a star is a small peice of the sun they can't touch it it's impossible without getting heat burns or dying so they ither observe a star using a telescope or went to space for days
Why did the sinkhole form only over the sugar deposit?
This will symbolize groundwater. Place the cup with the sugar and sand in the water. Watch as the water fills into the cup and the sugar dissolves and runs out. A sinkhole is formed in the cup as the surface sand sinks into the area where the sugar dissolved.
which of the following is not an example of a service? multiple choice question. buying a new car getting a massage staying at a hotel taking a flight to new york
Out of the four options listed, "buying a new car" is not an example of a service.
A service is a type of economic activity that involves the provision of intangible value to customers.Getting a massage, staying at a hotel, and taking a flight to New York are all examples of services. Getting a massage involves a service provider performing a physical manipulation on a customer, with the goal of promoting relaxation and well-being.
Staying at a hotel involves a customer paying for a temporary place to sleep and access to other amenities, such as food and leisure facilities. Taking a flight to New York involves a customer paying for transportation from one location to another.In conclusion, "buying a new car" is not an example of a service. Services are intangible economic activities that involve the provision of value to customers. Examples of services include getting a massage, staying at a hotel, and taking a flight to New York.
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The process of cell division in bacteria is called
Answer:
binary fission
Explanation:
The process of cell division in bacteria is called binary fission.
Don't make this mistaken for mitosis; mitosis is labelled for eukaryotes (plants or animal cells) while bacteria is a prokaryote.
Glycolysis yields Choose... molecules of ATP, while the electron transport chain yields Choose.. molecules of ATP due to the presence of oxygen.
Answer:
Glycolysis yields 2 molecules of ATP, while the electron transport chain yields 32 molecules of ATP due to the presence of oxygen.
Explanation:
Glycolysis yields 2 molecules of ATP, while the electron transport chain yields 32 molecules of ATP due to the presence of oxygen.
What is electron transport chain?An electron transport chain is a collection of protein complexes and other molecules that associate protons across a membrane with the transfer of electrons from electron donors to electron acceptors via redox processes. Both photosynthesis and cellular respiration take place in mitochondria.
An organic metabolite (an intermediary in metabolic reactions) reacts with the coenzyme NAD+ to begin the electron transport cycle (nicotinamide adenine dinucleotide). In this oxidation reaction, the organic metabolite loses two hydrogen atoms (or two hydrogen ions and two electrons).
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i need help on number 3 I’ll give you brainliest
The sentence from the paragraph that supports that the green roofs can help reduce cooling costs is as follows: plants naturally absorb energy from the Sun and convert it into chemical energy that is stored in the bonds of sugars during photosynthesis (option B).
What is the idea of the paragraph?The paragraph in this question is conveying information about green roof which is made by adding soil and plants to a specifically designed roof.
According to the passage, scientists has shown that the green roof is more advantageous than the conventional roofs.
One benefit outlined is that plants in the green roof can naturally absorb energy from the Sun and convert it into chemical energy that is stored in the bonds of sugars during photosynthesis. This is a way cooling costs can be covered.
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in my investigation, i saw that it can cause the growth of algal blooms which can be toxic to wild life and humans. this could also mess with marine life habitats such as coral reefs and more
Answer:
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Which of the following characteristics of water are important for its role in cellular reactions?
1. high heat of evaporation
II. low friction between molecules
III. solvent properties
IV. thermal stability
O I, II, III, and IV
O I, II, and III only
O II, III, and IV only
O I, II, and IV only
Explanation:
dang ..................................
what is believed to have an active and changing atmosphere
Explanation:
Green house effect and global warming
Answer:
Uranus and neptune are called "ice giants" because they experience very low temperatures. This is due to the fact that these two planets are very far from the
What characteristic was used in this mission to determine a banana's relationship to other the plants?
The characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics.
What is morphology?
Morphology is the study of the form and structure of living organisms, including their physical and anatomical features. In biology, morphology is used to describe the appearance, shape, and size of different parts of an organism, such as its organs, tissues, cells, and even its molecules. This includes the study of external and internal structures, as well as their function, development, and evolution. Morphological characteristics are often used in the classification and identification of different species, as they can provide important clues about an organism's evolutionary history, ecological niche, and relationship to other organisms.
We assume you are referring to the scientific classification of bananas in the plant kingdom. In this case, the characteristic used to determine a banana's relationship to other plants is its morphology or physical characteristics. Bananas belong to the genus Musa, which is part of the family Musaceae.
The characteristics used to classify plants into different taxonomic groups include their structural features, such as their leaves, stems, flowers, and fruit, as well as their genetic and evolutionary relationships. These characteristics are used to group plants into increasingly broader taxonomic categories, from species to genus, family, order, class, phylum, and kingdom.
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What term is used to describe a retrograde flow of urine from the urinary bladder into the ureters that is the cause of recurrent urinary tract infections (UTIs)?
Answer:
Vesicoureteral reflux (VUR)
Explanation:
Answer:
The condition is known as Vesicoureteral reflux (VUR)
Explanation:
Vesicoureteral reflux (VUR) is a pathological condition caused by Urinary Tract Infections (UTIs) where urine flows back from the bladder into one or both ureters, and sometimes back into the kidneys. The condition is commonly seen in young children under 2 years of age, and infants.
Most children with primary VUR were born with an abnormal ureter, which is mainly seen as a defective valve between the kidneys and the ureters that does not close well, hence resulting in refluxes. Secondary VUR develops due to some pathological conditions affecting the urinary tract, like blockage of the urethra, causing reflux of urine. Defective bladder nerves can also lead to VUR.