White blood cells that fights pathogens and other forgiven organisms made in the thymus

Compare and contrast the roles of genetic factors and local conditions in determining physical traits

What are some personal thoughts on air pollution.

5. On sprinkling common salt on grass growing in lawn, the grass is killed. Explain

Which of the following plants do NOT have swimming sperm? ginkgos cycads both a and b none of the above

True or false sedimentary rocks can form from metamorphic rock that has been uplifted

Which of these sets of physical characteristics is used to classify animal groups? A. body size B. number of legs C. body cavity type D. method of reproduction

Explain how temperature and amount of precipitation can affect the type of plants and animals found in the grassland biome?

What is unusual about organisms in the domain Archaea? 1 - They live in extreme environmental conditions 2 - They are very large 3 - Their rate of reproduction is very fast 4 - They are complex, multicellular organisms

Is the retna in the back of the eye?

A. Efficiency of public services is offered nearby. B. Use of mass transit instead of individual automobiles. C. Recycles underutilized and devastated properties. D. Human activities result in the development of urban heat islands. E.