Which biomolecule typically contains both Nitrogen and Phosphorous?

The graph shows the populations of two species in a particular region over two decades. Based on the graph, what can you conclude about the relationship between the two species?

All life must maintain an internal balance, despite environmental changes. What is this called?

In addition to carbon, carbonate minerals contain

Is the current rate of species loss 10 times the typical rate of extinction?

Describe what happened when mendel crossed purebred tall pea plants with purebred short pea plants.

After teaching a class about the endocrine system, the instructor determines that the students need additional instruction when they identify which of the following as an endocrine gland? A) Pancreas B) Adrenal gland C) Testes D) Kidneys

Which is the healthiest a. saturated fat b. monounsaturated fats c. polyunsaturated fats

What is the function of mitosis in an organism like a human?

What is the general organization of the nervous system

What would happen if a living thing is removed from a habitat