What characteristic of the species level of organization distinguishes two similar organisms such as ducks and geese as different species?

What are the main component of natural gas. Hexane Octane Methane Butane

17. in humans, what is the only homologous chromosome pair that isn't the same? a. 7 in females b. 23 in males c. 23 in females d. 14 in males

The brain is the key organ in which system

Which best describes the brain stem? A) The brain stem is found in the midbrain B) the brain stem controls critical thinking C) The brain stem controls blood circulation D) the brain stem regulates the release of hormones

Plant and animal cells can A) make ATP. B) make starch. C) make chitin. Eliminate D) make cellulose.

Describe how C. parvum obtains the glucose it needs for glycolysis after it has infected another cell

If earth didn't rotate what would be one major obstacle life would have to overcome

What are two key characteristics of cancer cells?

Why does the energy decrease as we go along the food chain from producers to tertiary consumers?

Whats a biotic factor scientists should control?