N an ecosystem, some plants may convert atmospheric nitrogen into ammonia through a process called

a. transformation.

b. denitrification.

c. nitrogen fixation.

d. nitrogenous mutation.

Pea plant clones are giving different amounts of water for three-week period. The first pea plant receives 400 milliliters a day. The second pea plant receives 200 milliliters a day. The third pea plant receives 100 milliliters a day.

Which of the following diseases is a fatal retrovirus affecting the cat's immune system? O Respiratory disease O Leukemia O Panleukopenia O Heartworm

What kind of evidence would you look for at a crime scene to obtain dna?

Which formation stores groundwater? A. water table B. reservoir C. pond D. aquifer

One dna strand is used as the template to make two new strands of dna. a. True b. False

Explain the effects of radiation on the cellular process of mitosis and meiosis

A biome that has a large amount of rainfall, high temperatures, and a poor soil is a

When a ball is rolling down a hill sketch and label the forces that pull the ball down and the forces that slow the ball done

How are babies made ... Asking for a friend

What is the symbol for calcium?