The amniotic egg was important in the colonization of the land because it:
A) had a hard shell and membranes to prevent drying out.
B) was deposited in water.
C) was easy to produce.
D) could hold multiple embryos.
Answer: A
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The increased osmolarity of the filtrate after Bowman's capsule is caused by:
A. diffusion of NaCl out of the proximal tubule. B. diffusion of HCO3– out of the proximal tubule. C. active transport of NaCl out of the proximal tubule. D. active transport of HCO3– out of the proximal tubule.
The pathogen that causes Legionnaires' pneumonia also causes a milder infection called Pontiac fever.
Answer the following statement true (T) or false (F)
Which combination makes the most sense from an evolutionary perspective?
a. light skin and vitamin D deficiency b. light skin and extensive exposure to sun c. dark skin and little exposure to sun d. dark skin and folate deficiency e. light skin and little sun, or dark skin and lots of sun
A natural latent variable for a probit model for modeling the purchase of a good by consumers would be which of the following?
A. Profits B. Utility C. Costs D. Net revenues