The ancestors of elephants inhabited every continent expect Antarctic and Australia. But the Asian and African elephants are the only one to survive. Why?

Which electron requires the most ionization energy - the 1st, 2nd, or 3rd electron on a sodium atom and explain why.

What are the basic requirements for the formation of a thunderstorm? (choose all correct answers.) ?

Amino acids are usually taken up into animal cells using a coupled transport system in the plasma membrane. Clearly stated in the space below whether this transport mechanism requires energy.

A species of frog slowly dies off because it cannot compete with the toads and lizards that share its ecosystem. This is an example of Answer adaptive radiation. background extinction. mass extinction. punctuated equilibrium.

Which of the following is not a reason why famine may occur? Drought Insect infestation of crops Use of fertilizers war

The two characteristics of a bond that affect the frequency of infrared radiation absorbed by that bond are:

How cells store energy and release energy using atp?

You observe a population of three-toed frogs that lives in the cloud forests of Panama. In this population, you observe the following genotype counts at a locus controlling coloration: 411 (AA), 800 (Aa), and 911 (aa).

What is a succession?

What is the formula for cellular respiration?