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 is the average of the following measurements: 3.1 2.7 4.6 1.9 8.7

A newly developed drug causes users to lose some muscle control and slur their speech. the drug also results in a slowing of central nervous system activity. most likely, this drug is a:

What is the layer of soil in polar tundra that is always frozen is called

Energy for a cells use is stored when

Which scenario is an example of a negative feedback loop?/ a) When body temperature increases, sweat is produced as a cooling agent to lower body temperature.

What is one disadvantage of using plasma gasification to detoxify hazardous waste?

Euglena use which structure for movement? A. cilia B. flagella C. pseudopods D. they do not move

1. What is a reproductive process in which a cell's genetic information is duplicated and then divided to produce a single identical daughter cell from an outgrowth of a larger parent cell? A. production of spores B. budding C. binary fission D.

True or false? biologists studied the effects of forest fragmentation by calculating the difference between the amount of plant biomass in the edges of forest fragments and the interiors of unfragmented forest.

This is an organ in the digestive system which transports waste out of the body and absorbs water from the waste before it leaves the body.