Aman has been told that he is not synthesizing enough follicle-stimulating hormone (fsh), and for this reason he may be unable to father a child. choose the correct statement to explain this problem.(a) the man must be producing progesterone, which inhibits the synthesis of fsh.(b) a hormone made in the adenohypophysis cannot influence fertility.(c) fsh stimulates estrogen secretion by ovarian cells; therefore it is not synthesized by males. (d) fsh stimulates sperm production in the testes.

On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.

Draw the structure of dna nucleotide with adenine as nitrogenous base

What is the function of the somatic nervous system? connects the brain and the spinal cord to the rest of the body carry signals to the muscles and glands includes all nerves controlling the muscular system and external sensory receptors controls internal organs like the heart and bladder