Why is it important for scientists to repeat an experiment several times before they are confident of their results?

How do we know that the xylem and phloem of a plant are similar to the veins and arteries of a human? a. We observe and record both organisms under many similar conditions b.

Which characteristic do sponges display when they feed on particles filtered from water? heterotrophy diffusion osmoregulation

Why is a cuticle a useful adaptation in plants but not algae?

Carbonated beverages are not a good choice for meeting an athlete's fluid needs because they: a. do not enhance athletic performance. b. speed up the use of glycogen. c. have a potentially hazardous diuretic effect. d.

List two populations that share your home

Which pattern of inheritance results from individual organisms having many different genes working at the same time to control a single trait?

1.1.2 A physical property of proteins is that ... A. they dissolve in water. B. they are soluble in ether and alcohol. C. they are denatured at low temperatures. D. they are macromolecules.

What can weathering impact

What are 3 plant adaptations to land?

What is overproduction? Some offspring mate with too many partners. Individuals produce offspring with too many traits. More offspring are produced than can survive. Some individuals produce more offspring than others.