Which of the following levels is expected to be altered as a result of the amino acid substitutions shown in figure 1 (can be more than one answer).
A) primary structure
B) secondary structure
C) tertiary structure
D) quaternary structure

Acid rain is the direct result of acid released by burning fossil fuels. select the best answer from the choices provided ot o f true or false

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.