The diagram shows structures of the male reproductive system. Diagram of male anatomy. 1 points to an oval exterior covering 2, an ovoid shape resting within the covering labeled 1.

What are the names and functions of the structures labeled 1 and 2?
1 - testicle, produces semen; 2 - epididymis, carries sperm
1 - scrotum, produces sperm; 2 - urethra, carries semen
1 - scrotum, protects testicles; 2 - testicle, produces sperm
1 - urethra, carries sperm; 2 - testicle, produces sperm

Consider an organism that is eukaryotic, found in both unicellular and multicellular forms, may resemble a plant but is not photosynthetic, has chitin in its cell walls, and absorbs organic nutrients from decomposing material in the environment. this organism would be classified as which of the following types of organisms? a. fungib. protozoac. bacteriad. archaea

Why is it important that fibrin is insoluble in water?

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed