Explain how the biomass of a species is limited by their trophic level

Due to the high cost, there are very few wildlife refuges in the U. S. True or False

Which characteristic of life is demonstrated when human skin heals after it has been cut? A. acquiring energy B. reproducing C. maintaining structure D. camouflage

When water freezes, it's volume

Which of these is the best example of the substance use of natural resource

Plants in a tropical rain forest usually have

When a mass increases, its gravitational force A. Increases B. decreases C. stays the same

Colpidium colpoda is a unicellular eukaryote that lives in freshwater, eats bacteria, and moves by cilia (see Figure 6.23b). Describe how the parts of this cell work together in the functioning of C.

Which statements apply to density? Check all that apply. >Density is a chemical property of an object. >The density of an object is constant. >Density is a derived unit of measure. >Density is the sum of the mass and volume of an object.

For some invertebrates that live in water, the sense of taste and the sense of smell are identical. Why do you think separate organs for taste and smell might have evolved in animals that live on land but not in some animals that live exclusively in

Plants can only cause mechanical weathering. true or false.