Arable land is land that? A, covered in water B, is uninhabited C, can be farmed, D, is sterile

As a general rule, the lower the npp of an ecosystem, the larger the ranges of its top predators must be. For example, sharks in the open ocean must cover huge distances. Explain why this is the case.

Describe a way in which scientists can determine if a newly discovered object should be classified as living or non-living.

If a coin is flipped nine times and it comes up heads each and every time, what are the odds that the coin will land on tails on the tenth flip?

Protein molecules called cytochromes are oart of the electron transport chain. They are nearly identical in every known aerobic organism. How do these molecules shoe the unity of life on Earth?

What is the flotation method used to determine? Mass Density Volume Color

In humans, chemical digestion is accomplished by enzyme action that begins in the mouth and ends in the a. esophagus b. stomach c. small intestine d. gallbladder

Which of the following best describes computer modeling in biology?

If an atom has six valence electrons how many does it need to obtain a full outer shell

The two amino acids animated above are joined together by a?

What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?