What is the reason why animals migrate?

An open system, such as an ecosystem, is characterized by which trait? A. Energy enters the system but does not leave it. B. Energy neither enters nor leaves the system. C. Energy leaves the system but does not enter it. D.

Name the three kinds of tissue that make up a plant's body, and list a function of each kind.

Multiple Choice: Which species is most likely to exhibit clumped dispersion? A. dandelions with seeds dispersed by the wind B. tigers that defend their territories from one another C. a bird that nests in many different types of trees D.

What is the name for the hollow muscular organ that stores urine

If you wanted to trace the creation of tectonic using magnetic bands to normal and reversed polarity your best place to measure the magnetic stripes would be

A class of drugs that inhibits the growth of bacteria without harming the host is known as a. antibiotics. b. antivirals. c. antifungals. d. hmg coa reductase inhibitors

List and explain the steps of protein synthesis

Explain how the Che molecules allow a bacterium to move towards or away from a chemical source

Which characteristic of life relies on the sun? adaptation using energy cell structure reproduction?

These are organisms that are brought into a new environment, sometimes accidentally, sometimes on purpose; and have no natural enemies or controls.