Which situation would not encourage competition? select one: a. the amount of vegetation decreases due to a drought in a rabbit habitat. b. a long, wet season results in additional earthworms in a robin habitat. c. a long dry season results in a decrease in pond algae in a fish habitat. d. a wet, rainy season results in flooded caverns foxes normally use as shelters.

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.