Answer:
Hormones act as first messenger but not as second messengers.
Explanation:
Second messenger act as signaling molecule which are secreted in response to various biological signals generated by first messenger such as hormones,neurotransmitters etc.Second messengers include various bioactive molecules such as cyclic AMP(cAMP),cyclic GMP(cGMP),inositol triphosphate(IP3),diacylglycerol(DAG),calcium ions(Ca2+) etc.
Hormones are extracellular signaling molecules whereas second messengers are intracellular signaling molecules.
"simple aerobic bacteria"relating
to or denoting exercise that improves or is intended to improve the
efficiency of the body's cardiovascular system in absorbing and
transporting oxygen.
The fertilized part of a flower is called an ovary
Answer:
Nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. It is found in amino acids that make up proteins, in nucleic acids, that comprise the hereditary material and life's blueprint for all cells, and in many other organic and inorganic compounds.
Explanation:
(I just copy and paste from google)
Answer:
The correct answer would be option C.
Explanation:
Cellular respiration is the st of the chemical reaction that uses glucose molecule and produces energy as ATP that is the energy currency of the cell. It includes three-stage glycolysis, Krebs cycle and electron transport cycle with an intermediate stage in between Krebs cycle and glycolysis that is oxidative carboxylation.
The energy produced by the cellular respiration is utilized in all type of cellular function including repair and renewal of cell and tissue by the cell division.
Thus, the correct answer is option C.
