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Taya2010 [7]
3 years ago
15

George is running a 5-km race and his cells need more oxygen. Which change will help his body meet the increased demand for oxyg

en? A. His heart beating more quickly. B. His pancreas releasing more insulin. C. His breathing becoming more shallow. D. His sweat glands becoming more active.
Biology
2 answers:
Vinil7 [7]3 years ago
6 0
A. because the heart will pump more blood filled with oxygen to the muscles that need it most
dezoksy [38]3 years ago
3 0

Answer: A. His heart beating more quickly.

Explanation:

The physical activity like running increase the rate of heart beat and blood circulation in the body due to muscular activity. During running the body experiences the depletion of oxygen. Oxygen becomes the main requirement for cellular respiration during running. To meet the requirement of oxygen the heart pumps the blood faster so that the requirement in each cell get fulfilled through rapid blood circulation.

On the basis of the above explanation, A. His heart beating more quickly. is the correct option.

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What are bio-fuels considered carbon neutral?
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Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is homozygous
9966 [12]

The cross between parent plants if one is heterozygous for yellow pods and the other is homzygous for green pods - Yy yy., i.e., option A.

<h3>What is heterozygous?</h3>

The occurrence of different types of alleles is referred to as heterozygous condition.

A heterozygous genotype may consist of one normal allele and one mutated allele, or two distinct mutated alleles.

The missing options of the question are:

  1. Yy ´ yy
  2. YY ´ yy
  3. Yy ´ Yy
  4. yy ´ yy

The cross between parent plants if one is heterozygous for yellow pods and the other is homzygous for green pods - Yy yy.

Thus, the correct option is A.

For more details regarding heterozygous genotype, visit:

brainly.com/question/238628

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2 years ago
Name one thing that is different about a cell that is in G1 and a cell in G2
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Answer:

Contaminación por quema de combustibles fósiles en vehículos, deforestación y uso de químicos en agricultura.

Explicación:

La contaminación por quema de combustibles fósiles en vehículos, la deforestación y el uso de químicos en la agricultura son los factores que generan problemas ambientales en nuestra comunidad. La quema de combustibles fósiles en vehículos e industrias libera gas de dióxido de carbono que aumenta la temperatura del área, la tala de árboles para uso doméstico tiene un efecto negativo en el medio ambiente. En nuestra comunidad, los productos químicos se utilizan para obtener una mayor producción que también contaminan los cuerpos de agua y los animales acuáticos afectados.

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