Eukaryotes have the ability to take in nutrients by phagocytosis, whereas prokaryotes do not. Which of the following explains the advantage this brings to eukaryotes?
A. Eukaryotes are able to get bigger because
they can now ingest larger materials.
B. Phagocytosis provides eukaryotes with a
way of obtaining more DNA for their genome,
which allows them to become more complex.
C. Phagocytosis provides eukaryotes with a
way of obtaining more RNA for translation,
which allows them to become more complex.
D. Eukaryotes are able to exploit other, more
complex materials for food that prokaryotes
cannot.
E. None of the answers options is correct.
D
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The bilaterians animals are divided into two monophyletic groups, the _____ and the _____, which are supported by patterns of comparative anatomy, comparative embryology, and molecular sequence data
A. Protostomia and Deuterostomia B. Lophotrochozoa and Ecdysozoa C. Chordata and Hemichordata D. Eumetazoa and Protozoa
The lateral line system in elasmobranchs is used to detect which of the following?
1.Electric currents 2.Odors 3.Sounds 4.Vibrations
In the carbon cycle, one of the ways in which carbon is returned to the atmosphere is by respiration
____________________ Indicate whether the statement is true or false.
Vasopressin is a hormone that is primarily released when the body is low on water. Release of vasopressin causes the kidneys to conserve water by concentrating urine and decreasing urine output. However, vasopressin also has additional functions in other tissues such as the brain and blood vessels, which are not directly involved in urine production. How could it be possible for vasopressin to trigger different responses in different tissues?
A. Vasopressin binds to the same exact receptor in different tissues, but causes a different conformational change to the receptor in each tissue. B. The kidneys have a receptor for vasopressin, but cells in the brain and blood vessels do not have a receptor for vasopressin. C. Vasopressin can bind to, and act on, different receptor subtypes, leading to different cellular responses in different tissues. D. Vasopressin can be released at different times to result in different effects.