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xxTIMURxx [149]
3 years ago
15

Which of these changes does NOT increase blood pressure? CO = cardiac output SV = stroke volume VR = venous return PR = peripher

al resistance BV = blood volume A) increased CO B) increased SV C) increased BV D) decreased PR
Biology
2 answers:
inn [45]3 years ago
8 0
CO does not increase blood pressure
sveta [45]3 years ago
4 0

Answer: D

Explanation:

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The answer is; A

This is a symbiotic relationship. The mycorrhiza is harbored I the roots of the orchids. The fungi nitrify the soil around the plant. Therefore, the fungi make nitrates (which are critical for the growth of the plant) available to the plant. The fungi, on the other hand, are assisted in breaking down of large carbon polymers by the orchids because the plant’s enzyme is more powerful than those of the fungi.


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3 years ago
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List 5 disorders that affect male reproductive system and discuss them​
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Answer:

  1. Prostate Cancer
  2. Testicular Cancer
  3. Male infertility
  4. Testosterone Deficiency
  5. Enlarged prostate or BPH
8 0
2 years ago
Two principal approaches governing the study of animal behavior​
Ksivusya [100]

Answer:

Ecological and ethological approaches to the study of behaviour. The natural history approach of Darwin and his predecessors gradually evolved into the twin sciences of animal ecology, the study of the interactions between an animal and its environment, and ethology, the biological study of animal behaviour.

8 0
2 years ago
in humans, a combination of XX chromosomes results in a female zygote and that of XY result in a male zygotes. From whom does th
devlian [24]
The answer is: from mother

In a human diploid somatic cell (2n), there are<span> in total 46 chromosomes</span> - 22 autosomal chromosomes present in two copies and 1 pair of sex chromosomes. This means there are 23 pairs of chromosomes. In males, there is one X and one Y chromosome (XY) while in females, there are two XX chromosomes (XY).
During the formation of gametes, a female could give only X chromosomes, so gametes from the mother contain one X chromosome. But, a male could give X or Y chromosome, so gametes from the father contain either X or Y chromosome.
Female gamete and male gamete fuse to form a zygote. Male zygote must contain both X and Y chromosome. It inherits Y chromosome only from the father, so X chromosome must be inherited from the mother.
6 0
3 years ago
Which best defines a diploid cell during meiosis?
Lubov Fominskaja [6]
Diploid cells. Meiosis is the process of cell division by which involving gametes. Cell division is just the same for sperm and egg cells, but they have distinguishable descriptions and labels in the process. Spermatogenesis is for the males’ sperm cells and oogenesis is the process for females’ egg cells. The cell division of meiosis involves the two phases, respectively meiosis I and meiosis II. Meiosis I like mitosis is the cell division that produces diploid cells. These diploid cells are cells that contain a complete pair of chromosomes which is 46. The result is two diploid cells after the first meiosis. To provide clear explanation, in contrast haploid cells only contain 23 chromosomes and are created after meiosis II which is 4 in number.



6 0
3 years ago
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