What are the main components needed to insure ecosystems stability? A. Estuary, savanna, tundra

B. Primary and secondary and succession

C. food, water, shelter and biodiversity

D. Moderate climate, sufficient space, and adequate sunlight

Which of the following cell structures is responsible for giving you energy to run? A. cell membrane B. mitochondria c. nucleus D. ribosome

Which element of variation would not be affected by adding the data value 4 to the data set {3, 5, 6, 8, 9, 10, 13, 14}? A. the lower quartile of the data set B. the median of the data set C. the upper quartile of the data set D.

Which of the following correctly describes starch? A) Protein composed of amino acids B) Protein composed of monosaccharides C) Carbohydrate composed of amino acids D) Carbohydrate composed of monosaccharides

Which organism below would show evidence of evolution the fastest? fungi bacteria humans rabbits

Fossilized stromatolites: Group of answer choices formed around deep-sea vents resemble structures formed by bacterial colonies found today in some shallow marine bays provide evidence that plants moved onto land with animals and fungi contain the

Five disease of the kidney

The primary organs of excretion are the A. heart and lungs. B. lungs and kidneys. C. kidneys and liver. D. liver and pancreas.

What is the role of DNA ligase in the elongation of the lagging strand during DNA replication? A) It synthesizes RNA nucleotides to make a primer. B) It catalyzes the lengthening of telomeres. C) It joins Okazaki fragments together.

Which type of cytoskeletal element is described as a solid

Energy related usage in the United States makes up nearly what percentage of human-caused greenhouse emissions? A 57% B 63% C 72% D 85%