Dogs have different features to us because they have adapted and evolved to have the features they have. For example, when a puppy is developing, cells receive signals to move to one end of the puppy and develop the tail. Neutrophils are the most common white blood cell in dogs. Which compare to us we have red blood and white blood cells they are different cells in human body. Dogs chose us Unlike cats, horses, or other domestic animals, they became a part of our lives by their own volition. ... Dogs, like man, are predators that live in groups and hunt by daylight. Their skills in running down prey far exceed our own. And this is the reason why dogs cells are structured differently then humans or any other animal.
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The sugar molecules thus formed contain carbon, hydrogen, and oxygen: Their hydrocarbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into larger molecules (such as proteins or DNA), used for example to form new cells.
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The correct answer is 1, tight junctions. Tight junctions are the junctions seal adjacent epithelial cells in a narrow band just beneath their apical surface. They contain a network of claudins and other proteins. They limit the passage of molecules and ions through the space between cells.
Answer:
c. fittest descent with modification
Explanation:
Evolution can be defined, in a nutshell, as the process of variation and adaptation of populations over time, and may even cause the emergence of new species from a pre-existing one. In short, evolution is the process that gives rise to a fittest descent with modification. Thus, the great diversity of organisms present on our planet can be explained through this theory.
As we study evolution, we realize that the life forms we know today are not the same as those that lived thousands of years ago. This means that species have an evolutionary history and that many changes happen to them until there are the characteristics we observe today.
Species, therefore, are not fixed, have undergone changes throughout their history on the planet and continue to change. Man, for example, did not appear on earth as we see today, as there were several ancestral species.