Answer: Explanation:
It is a two-step process that reduces the chromosome number by half—from 46 to 23—to form sperm and egg cells. When the sperm and egg cells unite at conception, each contributes 23 chromosomes so the resulting embryo will have the usual 46.
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Answer:
The amount of water that evaporates from earth is roughly equal to the amount that falls as precipitation.
Explanation:
In the hydrological cycle, evaporation consists of the conversion of liquid water into water vapor, which reaches the atmosphere. Once the water vapor condenses produces precipitation in the form of rain, snow or hail.
<u>On the earth the amount of water that evaporates is proportional to the water that falls as precipitation</u>. The mass of ocean water is substantially greater than the amount of land, so variations in the proportion of evaporated water and precipitation occur in the hydrological cycle:
- <em>In the oceans, evaporation is greater than the precipitation that occurs.
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- <em>On the continents - firm land - evaporation is less than precipitation.
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This produces a certain grade of compensation in which, globally, the amount of water that evaporates from the earth is roughly equal to the amount that falls as precipitation.
Learn more:
Hydrological cycle brainly.com/question/13189254
Abiotic factors are things in an ecosystem that aren't alive.
Here are a few examples of abiotic factors in a rain forest:
1. Sunlight
2. Water
3. Soil
4. Rocks
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Together organ systems make us healthy and living.
A cell with a nucleus. The opposite is a prokaryote; a cell without a nucleus.
