What does external stimulus mean?

A one liter jar is filled with water right to the top. A rock is then dropped in the jar and 600 mL of water is displaced (pushed out). What is the volume of the rock? 600 cm3 1,400 mL 400 cm3 400 mL

Why is the Hoover dam called an arch grab the dam

Food taken in by living organisms can be broken down and used to

List some examples of the types of information that could be found in a scientist's journal

5. After a cell was treated with a certain chemical, the ribosomes stopped functioning. Which cell activity was immediately affected by this change in ribosome function?

Students planted three bean seeds after several days, they observed that the seeds' roots were growing downward into the soil which type of tropism were the roots displaying A. Geotropism B. Thigmotropism C. Phototropism D. Photoperiodism

A farmer is trying to determine why some weeds sprayed with weed killer do not die. to begin a scientific investigation of this issue, what would be the first step for the farmer?

What do viruses have to support the idea that they are living?

Suppose a population of rabbits is introduced to an environment that has hot summers and extremely cold winters. Every winter, many rabbits die because of the cold and the lack of food. The rabbits have a range of ear sizes.

True or false: when individuals of a parent species are separated geographically, one population of separated individuals is more likely to acquire neutral mutations than the other.