March 21st is an equinox. what part of earth is directly beneath the sun on that day?

Which is true? A. All organisms obtain water through food B. some substances must be dissolved in water before they can be used C. water s important to some organisms D. plant cells are unaffected when water is scarce

Which of these is an advantage of multicellular organisms? A. Cells are able to provide support. B. They remain small. C. They can reproduce slower than unicellular organisms. D. They need small amounts of energy.

Digested starches, sugars, and proteins are absorbed by the?

Based only on their anatomy, rank gorillas, bears, chimpanzees, and mice from most recent common ancestor with humans to least recent common ancestor.

What are trophic relationships? water use relationships between different plants habitat use relationships between different animals feeding relationships between different organisms sunlight use relationships between different plants

When an accurate experiment is repeated by another scientist, the results A) should be similar to those obtained originally. B) will be identical every time the experiment is repeated. C) should be completely different for a different scientist.

1. Which of the following forms all matter?

True or false Sedimentary rock can be formed from changes in igneous rock, but igneous rock cannot be formed from changes in sedimentary rock.

When a protein is denatured, why does it lose its functionality?

This is a rotating machine that converts the kinetic energy of the wind into mechanical energy. If the mechanical energy is used directly by machinery, such as a grinding stone, the machine is usually called a windmill.