When researchers create lesions, they are destroying a piece of the brain.
The heart has 4 chambers.
In a monohybrid cross with two heterozygous parents the result will be a genotypic ratio of 1:2:1 for homozygous dominant to heterozygous to homozygous recessive. The phenotypic ratio will be 3:1 dominant trait to recessive trait.
Answer:
They are microorganisms that are important in the nitrogen cycle as converters of soil ammonia to nitrates, compounds usable by plants.
Explanation:
Insulin. Although it is made in the pancreas, insulin is the hormone.