What is a major source of calcium and sodium in oceans? A. air pollutants B. gases from active volcanoes C. minerals dissolved in aquifers D. weathering and erosion of rocks

How is a nerve different from a neuron

A certain reptile species is a carnivore and lives only on an isolated island. Which of the following would most likely result in the extinction of this reptile species over a period of twenty thousand years? SC. 7. L. 15.

What system maintains the pH of human blood at very near 7.4?

What group do the octopus and tree snail belong to and what 3 main body parts do they have?

According to cell theory, which activity is impossible?

A man has a large inversion on one of his chromosomes. How might this impact his offspring?

Explain how living things, such as people and trees, are different from nonliving things, such as rocks and the tent.

Mark all of the things that describe the Solar System. Question 11 options: a group of objects that interact with one another the main interaction of objects is with the sun Pluto at the boundary of the Solar System 50% of the Solar System's mass

All organisms in the kingdoms protista, plantae, fungi, and animalia are

If you looked at heart cells, would you expect to see a lot of mitochondria or only a few? Why?