Explain how biological diversity is increased by emergence of new species and decreased by natural selection?

Where does most of the energy come from in a shady section of a stream

Canine and feline species maintain their reproductive isolation mechanisms due to the fact that the formation of a fertilized zygote is impossible. What type of isolation describes this? a. Gametic b. Mechanical c. Temporal d. Ecological

Which scenario is an example of seed quiescence?

How does the process of decomposition put carbon back into the ecosystem?

The original source of energy in most ecosystems is

In what ways is vaccination different from other types of personal health?

How has the discovery of DNA affected the classification of protists (check all that apply) 1) many scientists wants to get rid of the kingdom Protista 2) some organisms have been moved out of the kingdom Protista 3) classification is generally

Abnormal skin conditions such as abscesses, vesicles, and macules are described using what term

Place or object used for comparison to determine if something is in motion

A scientist on a field trip discovered a new organism. She examined its cells under a microscope and observed several different structures, including a nucleus, a cell wall, and some chloroplasts.