The correct option for this question is option C - A reflex. A reflex is
what occurs when your body has a snap reaction to a form of outside
stimuli, for example catching something that has been thrown at you, or
bringing back your arm quickly after touching a hot place.
To remove the contaminants from the contaminated soil, the plant you will recommend in developing a cheaper treatment protocol is: <u>Ladder Brake Fern</u><u> </u><u><em>(Pteris vittata).</em></u>
Contaminated soil can be reclaimed by employing a method of remediation known as Phytoremediation.
Phytoremediation involves the use of plants to remove contaminants from soils that have been contaminated.
One of the cheap ways of employing phytoremediation to remove contaminants from soil is the use of a powerful plant known as the Ladder Brake Fern <em>(Pteris vittata).</em>
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The Ladder Brake Fern <em>(Pteris vittata) </em>is a semi-tropical plant that can hyperaccumulate soil contaminants by spatially isolating the chemical in vacuoles with the aid of a special transporter protein.
<em>Pteris vittata </em>belongs to the subfamily of <em>Pteridaceae</em>. The image of how a Ladder Brake Fern looks like has been attached below (<em>see attachment</em>).
Therefore, to remove the contaminants from the contaminated soil, the plant you will recommend in developing a cheaper treatment protocol is: <u>Ladder Brake Fern</u><u> </u><u><em>(Pteris vittata).</em></u>
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The person should be a male.
Only male carries XY chromosomes, meanwhile female carries XX chromosomes. "Heterozygous for the X and Y chromosomes" means that the person have both X and Y chromosomes in their cells, therefore only males fits the description.
This is also why the birth rate of girl or a boy is always 50%, it is because the sex of a person is only determined by the sperm from a male. Each sperm either carries a X or a Y chromosome, never the both. Therefore, the chances of a X or a Y sperm fertilising an X egg is always 50%, also explains why both female or male must have at least one X chromosome because an egg always carry an X.
You should draw a punnet square and get 50% heterozygous
Answer:
However, Meiosis I begins with one diploid parent cell and ends with two haploid daughter cells, halving the number of chromosomes in each cell. Meiosis II starts with two haploid parent cells and ends with four haploid daughter cells, maintaining the number of chromosomes in each cell
Explanation:
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