A single-celled eukaryote that is both photosynthetic and a chemoheterotroph is a(n)
A) apicomplexan.
B) dinoflagellate.
C) euglenid.
D) ciliate.
E) kinetoplastid.
C
You might also like to view...
A friend tells you the following story. "My aunt just received a heart transplant. Her doctors warned us that her body might reject the tissue. I just can't understand how that could happen as human hearts are made of the same tissues, aren't they?" How do you respond?
A. "Yes, all human hearts are made of cardiac muscles." B. "Yes, all human hearts are made of cardiac muscles, except some humans have different tissues inside their hearts and this could lead to a tissue rejection by the recipient." C. "Yes, all human hearts are made of cardiac muscles. As far as the rejection of tissues goes, your aunt might have different antibodies than did the donor, which could lead to a rejection." D. "Yes, all human hearts are made of cardiac muscles. However, your aunt might have been given some type of drug during the transplant operation that might cause tissue rejection. You can never be too careful in a hospital, you know." E. "Yes, all human hearts are made of cardiac muscles. As far as the rejection issue, everyone has different MHC proteins on their tissues. Your aunt's immune system recognizes the ‘self' tissues but can cause tissue rejection because of the ‘nonself' tissue in her body having different MHC proteins." Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about tissues and transplants? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
________ involves an insufficient amount of several neurotransmitters, such as serotonin, dopamine, and norepinephrine, for extended periods of time
Fill in the blank(s) with correct word
Why have scientists inserted the human insulin gene into the genome of E. coli bacteria?
A) A person who is unable to produce insulin can be cured if infected by a bacterium carrying the human insulin gene. B) Bacteria express the human insulin gene and produce large quantities of the insulin protein, which is sold pharmaceutically. C) Insertion of the human insulin gene into E. coli causes the cells to rupture, thereby controlling and reducing bacterial infections. D) The recombinant bacteria can be used in gene therapy of individuals who have type 1 diabetes. E) The engineered bacteria are used by the food industry as a supplement that improves the absorption of glucose
Shortly after fertilization, successive cell divisions convert the zygote into a multicellular embryo during a process known as:
a. meiosis b. parthnogenesis c. embryonic induction d. cleavage e. invagination