As we know, ecologists study living things in their nonliving environment. For example, they could use a mathematical model to predict the weather in a few years, helping them figure out the population of the animals. They can use a physical model to compare on a diagram the population of different animals in different areas. Hope this helps, since I'm still 8th grade and science isn't exactly my best subject, but I tried. :)
Humans have 22 chromosome pairs and two sex chromosomes. Females have two X chromosomes; males have an X chromosome and a Y chromosome. ... In humans, animals, and plants, most chromosomes are arranged in pairs within the nucleus of a cell. Humans have 22 of these chromosome pairs, called autosomes.
Answer:
so it is this Nitrogen for 78% of the atmosphere, oxygen 21% and argon 0.9%. Gases like carbon dioxide, nitrous oxides, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.
Explanation:
Answer:
Grass is the primary producer in ecological system
