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Questions in biology

[Done] The _________ of the cell directs cell activity and acts like the control center.

[Done] The small intestine is the pathway for chyme. What else does it do?

[Done] An enzyme is a biological carbohydrate-based catalyst. True or False?

[Done] How can an octopus fit its entire body into any space it finds, regardless of the space's size?

[Done] What is the "Symbiotic Theory," and how does it fit in with cells?

[Done] Why do all ecosystems depend on producers?

[Done] Why are there always more producers than consumers in a food chain?

[Done] How is the phosphorus cycle different from the nitrogen or carbon cycles?

[Done] Which scientist is matched with his contribution to evolutionary theory? A. Charles Darwin - Theory of Natural Selection B. Gregor Mendel - Principles of Heredity C. Jean-Baptiste Lamarck - Theory of Inheritance of Acquired Characteristics D. Alfred Russel Wallace - Co-developer of Natural Selection Theory

[Done] How do I find the genus and species of a living or extinct organism?