A biologist discovered a new animal. Upon studying its embryonic development, she observed radial cleavage with the blastopore developing into an anus. This animal was categorized as a
A. parazoan.
B. deuterostome.
C. pseudocoelomate.
D. radiata.
E. protostome.
Answer: B
You might also like to view...
The most reliable source of all essential amino acids in humans is:
A. meat. B. beans. C. corn. D. sunflower seeds. E. Doritos.
A procedure that divides organisms into two or more groups depending on their individual reactions to the same staining procedure is referred to as ________ staining.
Fill in the blank(s) with the appropriate word(s).
Correctly rephrase the following famous quote from J. B. S. Haldane. "I would lay down my life in order to save two brothers or __________________."
A. one son or daughter B. four cousins C. three uncles D. two nephews and one son or daughter E. two grandsons or granddaughters 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 kin selection? 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? Reflection 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?
If you conduct a monohybrid cross of two heterozygous Yy pea plants, what percentage of the offspring will be heterozygous? Select one:
a. 25% b. 100% c. 75% d. 50% e. 0%