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Tasya [4]
2 years ago
6

Help me please help

Biology
2 answers:
neonofarm [45]2 years ago
6 0

Answer:

Explanation:

cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen then via respiration processes, cells use oxygen and glucose to synthesize energy-rich carrier molecules, such as ATP, and carbon dioxide is produced as a waste product!

shutvik [7]2 years ago
4 0

Answer:

During photosynthesis plants take in carbon dioxide and water from the air and soil. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and keeps energy within the glucose molecules.

Explanation:

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Which of these is an example of a haploid cell?
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Answer:

The correct answer will be option-thick bundles of fibers that allow communication between the brain’s hemispheres.

Explanation:

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3 years ago
The population in South Africa is more prone to sickle cell anemia (genotype "ss"). People with genotype "ss" survive only up to
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<span>Sickle-cell anemia is a recessive disorder caused by the presence of two recessive alleles "s", so genotype is "ss". This disorder is characterized by sickle hemoglobin. In an area with malaria, heterozygous individuals "Ss" (with one dominant allele and one recessive allele) have an advantage. These individuals will have both normal and sickle hemoglobin. But pathogen that causes malaria affect only normal hemoglobin, so heterozygous individuals will have half of the hemoglobin resistant to the pathogen and those individuals are resistant to malaria.</span>

Stabilizing selection favors heterozygotes Ss,  disruptive selection favors dominant (SS) and recessive (ss) homozygotes, while directional selection favors dominant (SS) or recessive (ss) homozygote. Since in this example, people with genotype Ss (heterozygotes) are in advantage, then this is an example of stabilizing selection.

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3 years ago
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