Which statement is scientifically based?
a).mutations rarely occur.
b).all mutations are harmful.
c).some mutations can be contagious, like infections.
d).mutations are not passed from parent to offspring.

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

What type of weather does tropical continental air bring in summer? hot and cloudy cool and sunny hot and sunny cool and cloudy

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing