At each level of the food chain, what happens to about 90% of the energy? A) gained as energy B) lost as heat C) converted into unusable compounds D) excreted as waste

2 Commensalism is a relationship between organisms in which: A one organism benefits while the other organism is unaffected B both species benefit from the relationship C one organism feeds on the tissues, cells, or fluids of the other organism D

Assuming these cities are typical, what type of tides are common: On the East Coast? On the West Coast? On the Gulf of Mexico?

Alcohol is the drug that is most commonly used by teens. false true description

Organisms that rely on other living things for food are called

The colors of peacocks and hummingbirds are the result, not of pigments, but of ridges in the surface layers of their feathers. by what physical principle do these ridges produce colors?

What slime-covered structures are thought by some scientists to be where the first cells might have formed?

What type of molecule do animal cells use for long-term energy storage? Starch Sugar ADP Fat

When a cell gains water, what happens to its size and weight?

Which of the following shows the correct unit of weight listed from largest to smallest? A. Gram, microgram, milligram, kilogram B. Microgram, milligram, gram, kilogram C. Kilogram, gram, milligram, microgram D. Milligram, microgram, kilogram, gram

When no serologist available, what do states rely upon for experts?