Which statement is true about natural selection? Choose the correct answer.

a. It forms new traits.

b. It acts on variable traits.

c. It forms new genetic material.

d. It acts on genetic material directly.

What do you think the common name for Homo sapiens is?

How are bacteria different from viruses? (a) Bacteria can cause diseases. (b) Bacteria posses cell structures such as cell walls, flagella and ribosomes. (c) Bacteria are very small in comparison to a virus.

Which theme of biology explains the modification of an organism's parts to adapt to its habitat? A. Interdependence in nature B. Relationship of structure to function C. Continuity and change

Protists use all of the following methods to obtain energy except A. photosynthesis / B. ingesting food / C. converting atmospheric nitrogen / D. absorbing food.

La cantidad de sangre de una persona es igual a la de otra

Under what conditions would you expect the flow of blood into the renal circuit to be the greatest?

Which of the following is the term used to describe a body resistance to change in motion

Which type of soil is the most permeable

How would a person most likely become ill from overly acidic water? the water may contain toxic heavy metals. low ph is associated with cancer in newborns. low ph can make water cloudy with suspended particles.

What is produced once a cell has completed mitosis