A(n) species has population levels so low it is at great risk of extinction in the near future

a. endemic
b. endangered
c. threatened
d. indicator


B

Biology & Microbiology

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According to Mendel's law of equal segregation, an Aa monohybrid makes two types of gametes with equal frequency. These two gamete types are:

A) AA and aa B) A and a C) Aa and aa D) AA and Aa

Biology & Microbiology

Calcium ions can act as second messengers by binding to ____, which then regulates other proteins

a. cyclic AMP b. calmodulin c. protein kinase d. phosphodiesterase e. adenylyl cyclase

Biology & Microbiology

Which of the following is an example of cryptic coloration?

A) a brown bird that nests on the ground B) a deer with a large, white tail C) skunks with black and white stripes D) snakes with black, yellow, and red bands

Biology & Microbiology

Which of the following organelles is correctly matched with its function?

(A) Lysosome . . lipid hydrolysis (B) Nucleolus . . protein synthesis (C) Ribosome . . carbohydrate synthesis (D) Mitochondrion . . Calvin cycle

Biology & Microbiology