*I can't see the illustration
1. Snake would definitely kill or eat the rat.
2. The snake obviously.
3. The rat.
4. If the community of snakes increases, family of rats will extinct.
5. If the rats decrease in number, snakes would likely look for another prey.
6. Ecosystem would be unbalanced.
<span>When cells were first taken from Henrietta Lacks, she was suffering from cervix cancer. Henrietta Lacks was a woman whose cervix cancer cells were used as the source of the HeLa cell line nowadays used in medical research. During treatment for cervical cancer in 1951, the cells were taken without her knowledge. The cells were cultured by George Otto Gey who created the HeLa cell line.</span>
The correct answer is D - the father must be colorblind.
Colorblindness is a recessive trait, so in order for it to appear, you would need either one heterozygous and one homozygous recessive parent, two heterozygous parents, or two homozygous recessive parents.
Males only have one X chromosome to give to make a female. Their other chromosome is a Y. These sex-linked traits only appear on the X chromosome.
Since colorblindness is recessive, this X chromosome the father gives must be recessive, meaning <em>he must be colorblind.
</em>The mother can either be homozygous recessive (colorblind) or a carrier.
Well I think is physics right? Like bones