In a food chain, which trophic level contains the greatest amount of energy? A. herbivores B. carnivores C. producers D. decomposers

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

Which best describes red blood cells? They are colorless. They protect against disease-carrying microorganisms. They transport oxygen throughout the body. They aid in blood clotting.

What is created when chemical reactions join atoms together

Orographic lifting is associated with?

Which of these sentences is true about nitrogen? As nitrogen is the rarest gas in the atmosphere, very few organisms can use it directly. Even though nitrogen is an abundant gas in the atmosphere, very few organisms can use it directly.

Which best describes oogenesis and spermatogenesis?

What is one thing that all types of asexual reproduction have in common?

How is a dog similar to a baseball player?

What experimental evidence leads scientists to believe that only quantized electronic energy states exist in atoms?

With which atoms does carbon most frequently bond