Benthos are organisms that live?

A. on the surface of water

B. throughout the water column

C. on the sea floor

D. in shallow water

According to Darwin, evolution occurs a during half-life periods of 5,730 years. b by chance. c very rapidly. d due to natural selection.

Places on Earth that receive a relatively small amount of sunlight have a different type of climate than places that get more sunlight. Besides the amount of sunlight an area receives, other related factors affect an area's climate too.

For each of the following, indicate whether an increase in the concentration of that substance will increase, decrease or have no substantial effect on the binding affinity for oxygen to the protein hemoglobin (circle one answer in each category).

What happens when sex cells have mutations during replication? A. Problems in somatic cells B. Silent mutations C. Formation of proteins D. Offspring with mutations

At about 5000 degrees Celsius, The outer core is the hottest part of earth? True, Or False?

The gas waste generated by many power plants is a. carbon dioxide. c. nitrogen. b. hydrogen. d. sulfur oxide.

An invasive plant that can live in nutrient poor soil moves into an abandoned field. Later this land is cleared of this invasive species and it is discovered that now the soil is nitrogen rich.

If you are given a recombination frequency of 34% between genes x and y and 27% between x and z, can you predict the order of the three genes?

A client with stage ii ovarian cancer undergoes a total abdominal hysterectomy and bilateral salpingo-oophorectomy with tumor resection, omentectomy, appendectomy, and lymphadenectomy.

Movement of substances that requires the expenditure od atp molecules is called