Explanation:
sexual reproduction is the process of fusion of male gamete and female gamete producing a genetically different offspring .Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. meiosis leads to variation by forming new combination of alleles from maternal and parental chromosome
(choose which answers suits the question )
Explanation:
Meiosis leads to the formation of gametes which have half the number of chromosomes in the somatic body cells. This means two gametes should fuse together for a new individual to form. The two gametes coming from two different parents carry features from two individuals, and this is the first source of variation.
The process of independent assortment happens during metaphase I where the chromosomes from both parents align on the equator of the cell in an independent way, meaning some from each parent on one side, and the opposite on the other. This means the gamete formed has a mixture of chromosomes from the parent's parents, and this is the second source of variation.
Finally there is the crossing over which happens also in metaphase I where genetic material between the homologous chromosomes is exchanged. This means not the whole parental chromosome goes to one cell, but rather a mixture of both the paternal and the maternal in this one chromosome go to one cell, and an opposite mixture goes to the other. And this is the third source of variation.
Answer:
6.82 kg
Explanation:
Step 1: Find conversion
2.20 lb = 1 kg
Step 2: Use Dimensional Analysis
= 6.81818 kg
Step 3: Simplify
3 sig figs
6.81818 kg ≈ 6.82 kg
Answer:
Explanation:The remaining air (air that does not descend at 30 degrees North or South latitude) continues toward the poles and is known as the westerly winds, or westerlies
The dependent variable is the one that you're testing so computer speed
the independent variable is the number of times you turn off the computer
control variables are the other factors that could affect the speed besides turning it on or off such as internet speed, the computer you use, changing location, etc
The revolution of earth around the sun and the tilt of earth’s axis cause the changing of seasons. TRUE
<u>Explanation:</u>
Earth is slightly tilted at its axis. This causes a change in the amount of sunlight reaching each hemisphere. Due to the tilt one hemisphere will be closer to the sun while the other will be at a greater distance. When the earth revolves around the sun , the hemisphere that is closer to the sun changes.
The hemisphere closer to the sun will experience summer and the hemisphere away from the sun will experience winter.