Answer: The correct answer is -
B) The presence of at least one carbon-based sugar.
Explanation:
RNA (ribonucleic acid) and DNA (deoxyribonucleic acid) are the two types of nucleic acids that are composed of nucleotide (monomer of nucleic acid).
A nucleotide has three parts, which are pentose sugar (5 carbon sugar), nitrogenous base, and phosphate group.
Starch is a complex carbohydrate as it is composed of several units of simple sugar such as glucose.
Thus, the presence of at least one carbon-based sugar is common in DNA, RNA, and Starch.
A Sertoli cell (a kind of sustentacular cell) is a "nurse" cell of the testicles that is part of a seminiferous tubule and helps in the process of spermatogenesis; that is, the production of sperm.
It is activated by follicle-stimulating hormone (FSH) secreted by the adenohypophysis, and has FSH receptor on its membranes. It is specifically located in the convoluted seminiferous tubules (since this is the only place in the testes where the spermatozoa are produced). Development of Sertoli cells is directed by the testis-determining factor protein.
Answer:
Gluconeogenesis is needed to increase the blood glucose level and glycolysis is need to decrease or to move down the blood glucose level
Explanation:
Gluconeogenesis and glycolysis occur inside our body in response the blood glucose level.
When blood glucose level is low at that time gluconeogenesis is triggered by hormone glucagon released from alpha cells of pancreas by the same way when the glucose level is high at that time glycolysis is triggered by the insulin hormone.
The two processes gluconeogenesis and glycolysis occur in oue body to maintain homeostasis of blood glucose level.
While a constant supply of freshwater happens by itself in natural streams, an aquarium is by definition, a closed system. So here, man has to help out in order to provide new..
Answer:
Explanation:
Not only is the biota important, but the abiotic factors in the ocean are also important because both groups work together. The abiotic factors in the ocean help the ocean to 'work'. For example, phytoplankton (autotrophs) need light, nutrients, CO2 (dissolved gases) to photosynthesize.
