Trichoplax adhaerens is considered the closest
animal relative of the choanoflagellates due to
a. similar structures to amoeboids.
b. sticky base plate.
c. microscopic observation.
d. fossil evidence.
e. genetic evidence.
Answer: e
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Species that usually colonize empty habitats are more likely to show traits that are favored by _____
a. r-selection b. K-selection
What happens to lymph?
a. it is returned to veins near the heart b. it is stored in the spleen c. it is returned to venules near capillary beds d. it is returned to arterioles near capillary beds e. it is expelled from the body by the kidneys
Nearly all of life’s chemistry occurs near a pH of ____
a. 1
b. 3 c. 5 d. 7 e. 9
In comparing a frog cell in metaphase of mitosis with one in metaphase I of meiosis, how would tell you which was which?
A) In mitosis, the chromosomes would be unduplicated (single-stranded) and in meiosis, they would be double-stranded (made up of sister chromatids). B) In meiosis, the chromosomes would be unduplicated (single-stranded) and in mitosis, they would be double-stranded (made up of sister chromatids). C) Unlike meiosis, in mitosis each chromosome would be paired with its homolog. D) Unlike mitosis, in meiosis each chromosome would be opposite its homolog.