Alleles. When it comes to genes, alleles are basically your options - you have three alternative options for hair colors. For example - if someone with brown hair has a child with someone who has blonde hair, the child will have the alleles of brown and blonde hair
Answer:
The most effective experimental approach to assess the effects of elephant impact on vegetation is to assess plant responses under differences in elephant density. It is important that other factors, such as soils or habitat structure are held constant so that the only factor which varies is elephant density.
Explanation:
source: Studying Elephants icun.org
<u>Answer</u>: please find below the correct matches
<em>vitamin E</em> - antioxidant that protects cells from damage and promotes healthy skin
<em>fiber</em> - carbohydrate that slows the absorption of sugars into the bloodstream
<em>calcium</em> - mineral found in every cell of the body and is involved in the formation of teeth
<em>phosphorous</em> - mineral involved in the process through which muscles contract and relax
<em>cholesterol</em> - lipid molecule produced by all cells in the body and that forms lipoproteins
Answer:
The cell is the smallest structural and functional unit of living organisms, which can exist on its own. Therefore, it is sometimes called the building block of life. Some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.
Explanation:
Here are the 8 steps of meiosis:
<span>1. Each chromosome makes an identical copy of itself, forming two exact halves called chromatids. The chromosomes then thicken and shorten into a form that is visible under a microscope. The nuclear membrane disappears. </span>
<span>2. Each chromosome is now made up of two chromatids, the original and an exact copy. Similar chromosomes pair with one another, forming homologous chromosome pairs. The paired homologous chromosomes line up at the equator of the cell. </span>
<span>3. The chromosomes separate from their homologous partners and move to opposite ends of the cell. </span>
<span>4. The nuclear membrane reforms and the cell divides. The paired chromatids are still joined. </span>
<span>5. Each cell contains one member of each homologous chromosome pair. The chromosomes are not copied again between the two cell divisions. </span>
<span>6. The chromosomes line up at the equator of the cell. </span>
<span>7. The chromatids pull apart and move to opposite ends of the cell. The nuclear membrane forms around the separated chromosomes, and the cell divide. </span>
<span>8. THE RESULT: Four new cells have formed from the original single cell. Each new cell has half the number of chromosomes present in the original cell.</span>
