The diagram below shows an important process that occurs in the nucleus of a cell . If there are no mutation during this process which of the following pairs of strands will have identical base sequence ?

A) 1 and 2

B)1 and 4

C) 2 and 4

D) 3 and 4

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Rachel ate a piece of fruit and happened to drop the seeds in her backyard. after a few weeks, she saw a small plant with flowers growing in the backyard. which group does this plant belong to? a. angiosperms b. gymnosperms c. pteridophytes d. bryophytes e. chytrids

The negative impacts of nonnative species generally outweigh the positive impacts