Answer:
Both events occur toward the end of mitosis.
Explanation:
As mentioned, telophase and cytokinesis occur toward end of mitosis.
A is incorrect because During telophase and cytokinesis, animal cells form furrow or cleavage that gives way to formation of daughter cells. During telophase, plant cells phragmoplast forms in the center of the cell.
B is incorrect because DNA synthesis occurs in S phase.
D is incorrect because doesn't affect the organelle number as far as I know
Answer:
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Explanation:
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Competition help to regulate population growth since only those who are able to obtain food survive.
Crop plants and weeds may compete for water and for sunlight.
Farmers spray herbicides early in the growing season to avoid competition between crop plants and weeds.
<h3>What is the effect of competition on population?</h3>
Competition among species help to regulate population growth by ensuring that only those who are able to obtain food survive. Thus, only fit individuals of a species survive.
Crop plants and weeds may compete for water because water enables them to carry out metabolic activities of growth and development.
Crop plants and weeds may also compete for sunlight and they need sunlight to carry out photosynthesis.
Farmers spray herbicides early in the growing season in order to avoid or reduce competition between crop plants and weeds.
In conclusion, competition among species helps to control overpopulation.
Learn more about competition among species at: brainly.com/question/9428741
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Answer:
66986.51 g/mol
Explanation:
According to this question, Hemoglobin- an oxygen carrying compound in the blood, is found to contain 0.3335% iron (Fe) by mass.
* One molecule of hemoglobin contains four atoms of iron
If 1 atom of Fe = 55.85g/mol
Then 4 atoms = 4 × 55.85 = 223.4g/mol
So there are 223.4g/mol of Fe in one molecule of hemoglobin
If hemoglobin contains 0.3335% iron by mass, this mathematically means that:
223.4g/mol of Fe ÷ molar mass of hemoglobin = 0.3335%
That is;
223.4/M.M = 0.3335/100
Cross multiply
0.3335 M.M = 22340
M.M = 22340 ÷ 0.3335
M.M = 66986.51
Hence, the molar mass of hemoglobin is 66986.51g/mol.
