Echinoderms include _______.
a) insects and crustaceans
b) tapeworms and planarians
c) jellyfish and sea anemones
d) snails, clams, and squids
e) starfish and sea urchins
Ans: e) starfish and sea urchins
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Define and give an example of convergent evolution
What will be an ideal response?
In addition to the promise of disease therapies, the uses of stem cells in medical research include the study of how
_____. a. diseases develop and progress before phenotypes are visible b. Huntington Disease progresses in its latest stages c. to engineer animal models for human disease d. to harvest multipotent cells from human blastocysts e. to fertilize human eggs in vitro
A cell that has a cell wall is undergoing cell division, and the following events are observed: the formation of a cell plate and the division of the cell into two daughter cells. What type of cell is being observed and what process(es) is it going
through? A) prokaryote; telophase of mitosis B) animal cell; telophase and cytokinesis of mitosis C) plant cell; telophase and cytokinesis of mitosis D) plant cell; telophase II of meiosis
Any agent that causes damage to DNA is a potential ________
A) oncogene B) proto-oncogene C) pollutant D) carcinogen