How does human activity affect the environment

Why would antiviral supplies be initially unable to stop pandemic flu? A. There would not be enough for everyone affected. B. More effective drugs have not yet been developed. C. The flu would be resistant to treatment with drugs. D.

Which of the following is true about natural selection? A. natural selection acts upon individual organisms by changing their genetic code through a process known as gene flow b.

What is a plateau and how can one form?

What is an un-duplicated chromosome called?

What type of energy does a heated oven have?

A population of lizards that originally had no predators lived on a small isolated island. Predators of the lizards were accidently introduced to the island from a visiting ship.

If there are 50 kcal of energy in the tertiary consumer trophic level, how many kcal would you expect to find in the primary consumer level

The plasma membranes of some plant cells use transport proteins to move protons out of the cell against their concentration gradient (from areas of low proton concentration to areas of high proton concentration). this is an example of:

What is algae? and where is come from?

Are mushrooms biotic or abiotic