The relationship between the hermit crabs and the snails is A.commensalism
Why? Commensalism refers to a relationship where one organism benefits from the other without affecting it. In this case, the hermit crab benefits from the snails, via the latter's discarded shells. The crab's use of the snails' shells has no impact on the snails.
Answer:
The protein phosphatase-1 dephosphorylates the residues of serine, which are phosphorylated by the protein kinase A. The cyclic-AMP inducible genes are stimulated by CREB that is phosphorylated by protein kinase A. Thus, overexpression of protein phosphatase 1 would prevent their induction.
Although, protein phosphatase 1 would not influence the function of cAMP-gated ligand channels, as these channels are opened directly by binding of cAMP rather than by protein phosphorylation.
The percentage range of an adult's kilocalorie that is recommended as the maximum to be from fat is between 20-35% of kcal from fat. Fats and oils are part of a healthful diet, however the type of fat makes a difference to heart health and the total amount of fat consumed is important. Fat contains about 9 kilocalorie per gram. Fats are classified as saturated, monosaturated, or polysaturated based on the type of chemical bonds in their fatty acids. The recommended fat intake is between 20 to 30 percent of calories for adults, 30 to 35 percent of calories for children 2 to 3 years and 25 to 35 percent for adolescents 4 to 18 years of age.
Answer:
c.
Mangrove forests are named for the mangrove tree.
Explanation:
Salt Marshes and Mangroves
Edge 2020
The trp repressor blocks transcription of the trp operon (B) when the repressor binds to tryptophan.
trp operon or the tryptophan operon codes enzymes for the amino acid tryptophan. The operon is on when the tryptophan is low in amount whereas the operon is off when the tryptophan is low in amount. The operon is an assimilation of five genes.
Repressor is a small protein that is supposed to prevent the synthesis of proteins. It does so binding to the operator gene. Therefore, presence or absence of repressor is a determining factor for an operon to be on or off.
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