What are ectothermic species?

A.
species that can generate heat from their internal processes
B.
species that live in cold climates
C.
species that derive heat from the environment
D.
species that live in the ocean

Answer:

97% of the earth water is salt water

Dialysis tubing, or Visking tubing, is suitable as a model for the absorption of digested food in the small intestine due to its selectively permeable membrane.

Dialysis tubing is made of a semi-permeable membrane that allows the passage of small molecules, such as water, glucose, and amino acids, while restricting larger molecules like proteins and starches. This feature mirrors the function of the small intestine, which selectively absorbs nutrients into the bloodstream while preventing the entry of larger molecules.

The semi-permeable nature of the dialysis tubing enables it to simulate the process of absorption in the small intestine accurately. When food is digested in the small intestine, nutrients such as glucose and amino acids are absorbed through the intestinal walls into the bloodstream. Similarly, when a solution containing smaller molecules is placed inside the dialysis tubing and immersed in a surrounding solution, the smaller molecules will diffuse across the membrane, mimicking the absorption process.

By using dialysis tubing as a model, we can observe and measure the movement of substances across a selectively permeable membrane, resembling the absorption of digested food in the small intestine. This enables scientists and students to study the factors affecting absorption, such as concentration gradients, temperature, and surface area, in a controlled and simplified setting.

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Answer:

The process shown in the model requires energy from the cell.

Explanation:

Active transport refers to the movement of materials across the cell membrane against concentration gradient.

The cell membrane remains intact. However, energy is required from within the cell to move materials into the cell against concentration gradient, hence the answer.

Answer: It's A I took the quiz and I chose A. I got it right.

Explanation:

Answer:

In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus. The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure.

The first word of the scientific name functions as a noun, as it is used to identify a class of things. It tells us biological classification ranking between family and species, consisting of phylogenetically and/or structurally related species or a single isolated species with a specific diferentiation - the genus.

Therefore, the correct answer is:

The first word of the scientific name is capitalized, functions as a(n) noun and tells us the genus of the organism.

Cladograms are graphic representations of the relationship between different taxa according to derivated characters. Option A is correct. Group D has a segmented body and jaws, but no limbs.

A Cladogram is a graph drown as a tree, which is based on cladistic analysis. It represents the common ancestral relationships and the emergence of different characters among the involved groups.

Explains evolution with the minimal amount of evolutive changes.

It recognizes the monophyletic groups as natural groups. These groups are the clades, and their classification -sequencing- represents their phylogeny.

So the cladogram represents the relationship between groups according to a derived character.

The derivated character is any trait that a group passes to its descendants.

Through evolution, the characters change, and new changes are added. When referring to a derivate character, we mean that all the subsequent species in the cladogram carry the trait.

In the provided cladogram, segmentes bodies, jaws, limbs and other traits are derivated characters.

Group D has a segmented body and jaws, but does not express limbs.

This last trait emerged later in history and is expressed by groups E, F and G.

Option A is correct. Group D.

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Increase in genetic material (DNA) event is mostly responsible for increasing the opportunity for animals to develop more complex traits. The correct answer is option A.

The evolution of life on earth is marked by an increase in the amount of genetic material in living organisms. This increase in genetic material has enabled animals to develop more complex traits and adapt to a wider range of environments.

The gradual accumulation of genetic changes over time, as well as the movement of organisms into new environments, has led to the emergence of new species with unique physical and behavioral characteristics.

In many cases, these new species have been able to survive and thrive in their new environments because of the complex traits they possess, which allow them to compete for resources and avoid predators more effectively.

The correct answer is option A.

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Not part of plaque formation is a. host antigen

Plaque formation is a process involving the accumulation of bacteria and their extracellular products on tooth surfaces. Extracellular bacterial polymers, specifically extracellular polymeric substances (EPS), play a significant role in this process, these polymers allow bacteria to adhere to tooth surfaces and form a biofilm structure, leading to the development of dental plaque. On the other hand, host antigens are molecules that belong to the host organism, such as humans, and are recognized by the immune system. They are not involved in the formation of dental plaque directly.

However, host antigens may trigger an immune response against the bacterial pathogens present in the plaque, leading to inflammation and, potentially, periodontal disease. In summary, host antigen is not part of plaque formation, while extracellular bacterial polymers contribute significantly to the development of dental plaque by facilitating bacterial adhesion and biofilm formation.

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Answer two I hoped that helped you!!

Answer: lysosome

Explanation: Tay sach's disease impairs the functions of the lysosomal enzymes and causes the build up of GM2 ganglioside.

Tay sach's disease can also be called lysosomal disease due to the impairment it the lysosomal enzymes.

Answer:

Clavical

Muscular and Integumentary

Explanation:

I had to make a skeleton for a school project. Weird I know

Answer:

D. Human and Chimpanzee are more related than any other pair

Explanation:

The image in this question shows a tabularized information on the amino acid sequence of hemoglobin protein in different species. This amino acid sequence can be used to deduce whether two or more species are closely related or not. The amino acid sequence of the hemoglobin of the different organisms are as follows:

- Human: Lys-Glu-His-Iso

- Horse: Arg-Lys-His-Lys

- Gorilla: Lys-Glu–His-Lys

- Chimpanzee: Lys-Glu-His-Iso

- Zebra: Arg-Lys-His-Arg

Based on the above sequences, it can be observed that the amino acid sequence of humans and chimpanzee are the same with little to no differences while other species that have similar sequences differ in one or two amino acids. This means that Human and Chimpanzee are more related than any other pair.

Answer:

To measure temperatures of chemicals

Explanation:

Answer:oxygen is used and ATP is made

Explanation:

C) The gametophyte stage is followed by the sporophyte stage

Enamel is indeed the hardest substance in the human body. It is present in teeth of humans. It covers every tooth and provides the hard layer.

Tooth Enamel is hard glossy substance that is comprised of calcium and phosphate mineral crystals which in return makes our teeth more stronger. Teeth enamel care is extremely important to maintain the oral health of teeth.

Tooth Enamel is one of the major tissue that make up tooth in humans. It covers the top layer of the teeth known as Crown. Calcium hardens the tooth enamel. Enamel contains 96% of the minerals. The color of Enamel varies from light yellow to white.

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Answer:

process

hope it helps

thanks for the points

mass, volume, density

Answer:

A is the answer

Explanation:

Answer:

i put a and got it right

Explanation:

Answer:

c

Explanation:

Nervous tissue is part of the nervous system that is present in nerves, brain, and spinal cord. By transmission of electrical impulses throughout body, it helps in controlling various activities like voluntary action such as walking, running, and jumping. Thus, nervous tissue is the right answer.

Answer: The structure of the cell depends on what type of function it performs. The organisms can only function properly if the structure goes along with the function it is to perform.

Answer: Biomagnification refers to the process by which the concentration of a contaminant increases as you move to higher trophic levels in a food chain or food web. In other words, as organisms consume other organisms, the contaminants present in the prey accumulate and become more concentrated in the bodies of the predators.

To understand this process, let's consider an example involving a water ecosystem. Suppose a pollutant is released into the water, such as a pesticide or heavy metal. The primary producers, such as algae or aquatic plants, absorb small amounts of the contaminant from the water. As herbivorous organisms consume these primary producers, they ingest the contaminants along with their food.

Since the contaminant is not easily broken down or eliminated from the organisms' bodies, it accumulates over time. As a result, the concentration of the contaminant becomes higher in the herbivores than in the primary producers. Now, when carnivorous organisms consume the herbivores, they not only accumulate the contaminant from their own food but also from all the prey they have consumed. This leads to an even higher concentration of the contaminant in the carnivores.

Therefore, biomagnification describes the phenomenon where the concentration of a contaminant increases significantly as you move up the food chain or trophic levels. The highest concentration of contaminants is often found in top predators, such as large fish, birds of prey, or mammals, which can have adverse effects on their health and reproductive capabilities.

It's important to note that biomagnification primarily occurs for persistent and non-biodegradable contaminants that cannot be easily metabolized or excreted by organisms. These contaminants are often lipophilic (fat-soluble), which allows them to accumulate in fatty tissues and remain in the organism's body for long periods, leading to biomagnification.

Explanation:

Long noncoding RNAs that partially overlap protein-coding genes and are transcribed in the opposite direction are best classified as anti-sense lncRNA genes.

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The prediction you can make about the densities of Earth’s different layers one can tell about the layers through the use of seismic waves.

There is found to be some measures of evidence that the materials inside the earth create a distinct layers, and every single one is made up of different density.

Note that Most of this evidence is one that is seen via the observations of seismic waves and also the vibrations obtained by earthquakes or explosions.

Note that Denser objects and substances are the ones that often experience a higher form of gravitational force that is said to be acting upon their mass and this is one of the key materials that pertains to different densities creating layers.

Hence, The prediction you can make about the densities of Earth’s different layers one can tell about the layers through the use of seismic waves.

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Answer: The closer a layer is to the center of Earth, the denser it is.

Explanation: