As the pesticide ddt moves up the trophic levels in a food web, the concentration of ddt within organisms

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .

Why is it incorrect to say that mitochondria function only as energy factories with cell