What is humus?

A) A term to describe soil that is not fertile.

B) The broken down remains of plants and animals.

C) A type of soil that cannot retain water for long.

D) A mixture of man-made articles such as plastic and glass.

If you wanted to make all days on Earth the same length, what would you have to do?

Describe some of the physical factors involved of a culture medium

Which two heat illnesses feature cramps as one of the symptoms?

Which of the following best describes the purpose of the chromosomes in the nucleus of a cell? A to package the genetic material needed to specify traits B) to release energy by breaking down food molecules (c to transport nutrients into and out of

Which molecule is incorrectly matched with its monomer? a. nucleic acids; nucleotide b. protein; amino acid c. starch; lipid

When water is absorbed from the chyme, it becomes what?

What does the theory of plate tectonics state about the earth

If there is a glucose shortage, how does the body produce energy?

Greg is testing two different types of fertilizer on his tomato plants to find the best conditions for his summer garden. He isadding different amounts of fertilizers to his plants. Then he is recording how much the plants grow for 4 weeks.

A species of birds entered a nonnative habitat and is now considered an invasive species. Whats the most likely effect his species will have on native species that share the same reaources?