Finding a very large crater in the Gulf of Mexico
provided support for the
a. gradual model of speciation.
b. central dogma.
c. biological species concept.
d. K-T asteroid impact theory.
e. cell theory.
Answer: d
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They might be conducting such an experiment to _____
A) find the location of a particular gene in the human genome B) prepare to isolate the chromosome on which a particular gene of interest C) find which of the students has which alleles D) measure the expression of one or more genes in their genomes E) determine if any of them carries an extra sex chromosome
The Calvin cycle and light-harvesting reactions are separated in __________
A. time B. space C. time and space D. different organelles E. None of the answer options is correct.
Astrobiology seeks to answer all of the following
questions EXCEPT a. What is necessary for life to persist.. b. Is there life on other planets. c. What conditions allowed life to form on earth. d. Can we colonize other planets with life from earth. e. All of these are true.
Which term refers to the process of transferring male gametophytes to female reproductive parts in seed plants?
a. fertilization b. pollination c. sporulation d. syngamy