<span>respiratory circulatory digestive</span>
In order for natural selection to take place we must have "variety in a population". This variety of traits is what allows natural selection to "pick" the most favorable traits.
<span>Correct matches: chemicals with their descriptions.
1. abscisic acid ( is the hormone that regulates survival functions of a plant, such as the opening and closing of stomata)
2. auxins (chemicals produced in plants that are characterized by their ability to induce cell elongation and cell division in stems)
3. cytokinins (chemicals that helps plant cells divide)</span>
<span>4. ethylene (a hormone that promotes ripening of fruit or blooming of flowers) </span>
<span>5. gibberellins (chemicals produced by plants that stimulate stem elongation, seed germination, and flowering) </span>
I believe it is scientific laws.
Latitude measures how far a point is north or south of the equator. Since the earth is round, distance from the equator is measured in angular degrees with the equator being 0 degrees and the northernmost point -- the North Pole -- being at 90 degrees. The southernmost point -- the South Pole -- is also at 90 degrees.<span>Latitude is measured in degrees north when in the northern hemisphere and degrees south when in the southern hemisphere.
Hope this helps. :)</span>
