If the atomic number of an element is 6 and its mass is 14 how many neutrons are contained in the nucleus?

a) 6

b) 20

c) 14

d) 8

A fire burns an oak forest down to bare ground. Over the next 150 years, if the climate remains constant, this area will most likely A) remain bare ground B) return to an oak forest C) become a rain forest D) reclaim

What is a defining characteristic that all protocells had in common?

Which compound is a reusable, complex protein that speeds up chemical reactions? A) starch B) a sugar C) a lipid D) an enzyme

4. Who would you expect to be most at risk for developing the bone disease rickets? a. Children born to mothers with dark skin, living far from the equator b. Adults with dark skin who live close to the equator c.

Which is an example of an ionic compound? a. Copper (II) sulfate forms blue crystals, and the crystals are hard but brittle. b. Carbon dioxide is a gas at room temperature and is formed from carbon and oxygen atoms. c.

If two organisms are in the same class, what can you predict about their relationship

Histologists studies groups of cells that work together to form a particular function. Histologists must focus their attention on the ___ level of organization. A) cellularB) tissueC) chemicalD) organE) physiological

An example of mitosis at work is aleaf turning A. yellow. B. growing C. taking in carbon dioxide D. hosting a caterpillar.

Organizational members tend to experience metamorphosis before they experience the encounter stage of assimilation. Group of answer choices True False

Complete the food chain from the smallest to the biggest (algea) (big fish) (smallbird) (fish)