Explain, in terms of pressure, why a camel is better at crossing a desert

than a horse. Camels and horses have a similar mass and the weight

bearing part of a horse's hoof can be assumed to be approximately

180 cm2.

Can most organisms use "free" nitrogen gas in the atmosphere?

Which phrase best defines a biome? areas with different population types and plant communities areas with distinct animal and plant communities and associated with particular climates areas with distinct animal communities and associated with

Wild type fruit flies have reddish eyes. In some breeding experiments white eyed male flies randomly appear due to mutations.

Why are individuals with HIV able to contract diseases that are rare to the rest of the populations? a) HIV releases pheromones that attract the rare diseases.

Which stage of cell respiration uses oxygen

Chromosome duplication, which happens during mitosis, occurs in the what?

Which is not a characteristic that all living organisms share

A scientist claims plants can communicate with each other in a variety of ways. justify the claim of the scientist and describe the types of responses that result from the communication of two different plants.

Which of these scenarios illustrates natural selection due to behavior

What is a device that converts energy of motion into electrical energy