COMPETITION AND RELATIONSHIPS: 1. competition is when two species that are prey to the same predator
compete. It can be considered the competition of survival.

A. indirect
B. Apparent
C. Interference
D. Exploitative

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

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.

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome