In addition to endocrine glands, some organs whose functions are primarily nonendocrine also produce hormones. these endocrine tissues include heart and kidneys.
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The heart can act as an endocrine organ by releasing natriuretic peptides that lower the blood pressure. Those are an A-type natriuretic peptide (ANP) from the from stretched atria and B-type natriuretic peptide (BNP) from the ventricles.</span>
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The kidney secretes two hormones: erythropoietin (EPO) which increase the production of red blood cells and calcitriol (active vitamin D3) which promotes the absorption of Ca and its release from the bones.</span>
One special feature of bacterial cells that helps it survive in hostile environment is its ability to form endospores.
Maybe A, B, and D, this could be wrong but my best guesstimate
Black squirrels have a survival advantage over gray squirrels
Google images, I'm guessing.
