Answer:
Nitrogen is so vital because it is a major component of chlorophyll, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins. Without proteins, plants wither and die.
Hormones are chemical substances that help to regulate processes in the body. Hormones are secreted by glands and travel to their target organs in the bloodstream. Hormones can be used to control human fertility.
Answer:
A human heart is roughly the size of a large fist.
Explanation:
but the size varies according to an individual's age, health and size. The heart weighs 7 to 15 ounces.
Answer:
UAACUG
Explanation:
rna contains Uracil instead of Thymine.
The asnwer to this D. Cells are the basic unit of structure and function in organism.
