Answer:
Of the 92 natural elements, 25 are essential for life. Of these, there are six main elements that are the fundamental building blocks of life. They are, in order of least to most common: sulfur, phosphorous, oxygen, nitrogen, carbon, and hydrogen.
Explanation:
In order to conduct a research you should have an dependent variable, independent variable and the control variable. so in order to study phototropism, then you should need sun light and the growth of the plant and you must have a control that why you need a dark room.
Id say one of the negative affects is how cold it is in a tundra biome so its harder to get food and overall harder to survive
Answer: Cross pollination. The bee is taking from a new plant and giving it to the old plant so the old plant can be good as new. Good enough for ya mods?
