Within each gene there are two types of regions what are they called

Which type of fossil is bone or tooth that have been covered by layers of sediment and preserved into stone. Body Fossil Mold Fossil Resin Fossil Trace Fossil

Which is an example of how ecosystem on earth affect each other

What is the function of spongocoel in sponges?

What is the difference between environmental science and ecology

What are chromosomes? A. The alleles that cause certain traits B. Any organism that contains DNA C. Strands of DNA wrapped around proteins D. A form of virus that infects cells

Explain how the use of a chemical designed to kill grasshoppers could reduce the population of peregrine falcons.

The movement of water is able to transport minerals and nutrients. Which statement best explains why water is able to do this? A. Water is an excellent solvent. B. Water absorbs heat energy. C. Water has a density of one gram per milliliter. D.

Maintains a constant body temperature even when external temperature changes external temperature sets the internal temperature internal temperature constantly changes A. endotherm B. ectotherm C. poikilotherm

Which of the following statements regarding the control of C. botulinum in canned sauerkraut is not correct? a. salt in the sauerkraut inhibits the growth of C. botulinum bacteria b. an acidic pH (less than 4.

What are some careers involving animals? I want to become a vet, but are there other options?