Which of the following describes a pollutant that has been released into the air?

A. sewage

B. leachate

C. sediment

D. emissions

The body of an annelid has?

What method of soil conservation is what a farmer uses to plant different crops in a field each year

What pattern of migration do whales follow?

The Hardy-Weinberg model analyzes what happens to the frequencies of two alleles at a single genetic locus when evolutionary forces are not acting on a population. What are the assumptions that apply to a population that conforms to Hardy-Weinberg?

At what depth would organism that rely on infrared light most likely be found in the ocean

Which of the following describes the ways organisms are interconnected through their feeding patterns? Food chain Trophic level Food web Consumer chart

A tree is planted in a meadow. after 20 years it has grown into a big tree, weighing 250kg more than it was planted. where does the extra 250kg come from? explain your answer as fully and scientifically as you can.

Teeth begin to break down food by mechanical digestion. Which statement best describes this physical change?

The type of metamorphism that takes place in response to large-scale mountain-building process is called:

Differential survival and reproduction is best described by which term? a. natural selection b. creationism c. inheritance of acquired characteristics d. none of these