Ascientist observes one chimpanzee using sticks and leaves to pull ants out of anthills. the scientist concludes that all chimpanzees use tools. why should you be skeptical of the conclusion?

What claim did thorne make? what evidence supported his claim?

What is the function of the root cap? a. extra-absorbent cells in the root cap absorb more water and nutrients b. protect the meristematic area of the stem c. contains sensors for sunlight d. increases surface area of the root

Why do mountaineers become breathless as they reach high altitudes