What aspect of the geology of the Galápagos was important in producing the diversity of organisms seen by Darwin?
A) The islands are in the Pacific.
B) The islands are in a chain.
C) The islands are very dry.
D) There are no mammals on the islands.
B
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The control over milk secretion, water balance, and labor in childbirth is mediated by the ____ gland
a. pineal b. anterior pituitary c. posterior pituitary d. parathyroid e. thyroid
Slits between the cells of capillary walls serve to
a. allow passage of substances that cannot diffuse through the lipid bilayer of capillary wall cells. b. allow expansion of the capillary diameter. c. allow contraction of the capillary diameter. d. allow lengthening of the capillary. e. shortening of the capillary.
Order the following regions of a gene from the most upstream region (1) to the most downstream region (5).1. -35 consensus sequence2. Pribnow box3. coding sequence4. rut site5. terminator
Fill in the blank(s) with the appropriate word(s).
What are some challenges of cataloging a microbiome? Choose all that apply.
A. Many of the species use RNA instead of DNA. B. Most microbiome species are dangerous pathogens. C. Many of the different fungal species look like identical strings of hyphae. D. Since many species are unnamed and uncharacterized, DNA sequencing is useless. E. Microbes have such small amounts of DNA, it cannot be amplified. F. Many of the different bacterial species look like identical tiny rods.