The process in which nitrogen is converted into a usable form for life is called . a.
nitrogen fixation
b.
photosynthesis
c.
greenhouse effect
d.
photolysis
The answer is nitrogen fixation

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

As a small change in a person's dna can cause a genetic disorder

What is an endocrine function? (apex) a.esophageal glands release mucus into the esophagus b.salivary glands release saliva into mouth c.swear glands release sweat to the skin d.the pineal gland releases melatonin into the bloodstream