Biodiversity is one key to the long term sustainability of life on Earth.

A. True

B. False

Kim is studying certain blood vessels in the body. Blood travels from the heart to the muscles in the upper arms. Which type of vessels is Kim studying?

The degree or intensity of heat present and how we measure heat is called:

Which is an example of a limiting factor on a population? A. Limited resources B. Color of fur C. transportation

What is one effect of immigration on a population living in an ecosystem? A) the competition for resources will increase. B) more animals will leave the ecosystem. C) biodiversity will decrease. D) the population will decrease.

Which of the following is a variant of a gene? A. An autosome B. A gamete C. An allele D. A chromosome

What percentage of chromosomes normally found in the body cell of an organism do gamete cells contain after meiosis A - 24% B - 50% C - 60% D - 100%

Is the climate exactly the same all over the world

Th eprocess by which a soil nutrient is reduced and relased to the atmosphere as a gas

Which resources are sometimes unpredictable in terms of energy production? Check all that apply. Coal Wood Gasoline Natural Gas Wind turbines

During what time period does the balloon drift in a clockwise direction