The correct answer is A, D, E.
A. Cambrian.
D. Permian.
E. Silurian.
Triassic period was termed as the period for the mesozoic era. This time period followed extinction of great mass which founded at the end of period of permian.
It is during the period of triassic when first mammal and dinosaur appeared.
During late permian, plants like horsetails and mosses were extinct.
Those plants which evolved in on the of triassic were cydophytes and confers.
Answer:
Amount of food. She needs to varry the amount of plant food among the different groups so that she can tell how the amount of plant food affects number of beans produced.
Answer:
The synthesis of an amino acid follows this pathway: precursor A → intermediate B → amino acid C. Each reaction is catalyzed by a different enzyme. This metabolic pathway is controlled by feedback inhibition with amino acid C inhibiting the conversion of precursor A to intermediate B. Amino acid C acts as a noncompetitive inhibitor of the first enzyme in the pathway.
Explanation:
A no-competitive inhibitor reduces the activity of an enzyme by binding at its active site although it has already bound to the corresponding substrate
Answer: a. express different genes.
Explanation:
The nerve cells is functional for controlling the coordination of the body, respond to the external stimuli, voluntary actions in the body. The muscle cells contract and relax to facilitate the locomotion.
All the somatic cells of a living being have the same genomic make up. However, completely differentiated cells of particular tissue lineages express distinct genes, as required so as to perform specialized functions in the body.
