Where were the first Ediacaran fossils discovered?
a. Africa
b. North America
c. Australia
d. Asia
c. Australia
Biology & Microbiology
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Maintenance of the uterine lining during pregnancy in mammals requires
A. estradiol. B. testosterone. C. FSH. D. LH. E. progesterone.
Biology & Microbiology
The only animal in which digestion occurs within cells is
A. cnidarians. B. sponges. C. flatworms. D. comb jellies.
Biology & Microbiology
The most objective way to construct a phylogeny is to focus on characters
A. inherited from a common ancestor. B. that confer adaptedness to a particular habitat. C. that are large in size. D. acquired during an organism's lifetime.
Biology & Microbiology
Individuals with the same genetic background and a high degree of homozygosity are said to be isogenic. Of what value are isogenic strains in genetic studies?
What will be an ideal response?
Biology & Microbiology