How many covalent bonds can nitrogen have? a. 0 c. 2 b. 1 d. 3

Imported plants and animals in Hawaii have A. caused native species to die out. B. increased the native bird species. C. improved soil fertility. D. increased crop yields.

A base has a PH less than, greater than, or equal to 7?

Explain cell cycle in your own words

How would one explain a testcross involving F1 dihybrid flies in which more parental-type offspring than recombinant-type offspring are produced? a. Both of the characters are controlled by more than one gene. b.

Would a mutation in the DNA of a skin cell be passed on to an organism's offspring?

QUICK! In a developing embryo, what process allows cells of the mesoderm to give rise to muscle, bone, and heart tissues? Select one: a. cell differentiation b. cell depolarization c. cellular respiration d. cellular replication

According to the fluid mosaic model of the cell membrane, a. there are fats floating in the protein layer. b. carbohydrates function as membrane channels. c. nonpolar ends of phospholipids are exposed to water inside and outside the cell. d.

What is the actual meaning of the suffix - metry?

Jenny went to the sale at Kohl's last week. T-shirts were on sale for $15 each and hoodies were on sale for $20 each. If she spent $150 total, write an equation to represent this situation.

ct one: a. provides support to long bones b. prevents overactivity of osteoblasts. c. allows for continued bone lengthening during maturation. d. has an unknown function.