Answer:
B
Explanation:
i did that trust me i know this one
Hormones are a group of chemicals released by exocrine glands
These hormones are directly secreted into bloodstream from where they reach the site.
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Answer:
organ system it belongs to the sensory system.
the level of organization go from
•cells
•tissues
•organs
•organ systems
•organisms
•population
•community
•ecosystem
•biome
•biosphere
Answer:
1) Aa refers to the heterozygous of the genes. In this gene, both allele are different from one another.
2) AA is a gene which is homozygous in nature. Homozygous means that both allele are the same. Capital letters i. e. AA is used for the trait that is dominant.
3) aa is a gene which is homozygous in nature. Lower case letters i. e. aa is refer for the trait that is recessive.
