(03.02 HC) A group of scientists build a special enclosure in the local bay to separate their experiment from the rest of the ocean. They wish to determine whether their experiment is
a closed system by using a colored dye that is placed in the water. What result would best indicate that their experiment is a closed system, and why?

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming