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Monica [59]
3 years ago
15

Describe the theory of Alkaline Vents. What do you think about this? What is one major piece of evidence to support this theory?

What is one major flaw with this theory (something happened that would have likely wiped out living things)?
Biology
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0
<span>The theory of Alkaline Vents theorizes that life originated deep under the sea around hydrothermal vents. This could be likely because these vents provide plentiful methane and ammonia. Critics, however, point out that high temperatures are not conducive to organic life.</span>
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Tay-sachs is a recessive genetic disease in humans. both parents are carriers (heterozygous), what are the chances that their ch
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Biodiversity encompasses the number of: a. ecosystems in a region and number of species in the ecosystem. b. ecosystems in a reg
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Answer:

b. ecosystems in a region, species in an ecosystem, and genes and alleles in a species.

Explanation:

Biodiversity has three levels - ecosystem, species and genetic diversity. Therefore, Biodiversity  can be defined as the variability among living organisms involving terrestrial, marine, and other aquatic ecosystems, genes and alleles in a species and their ecological complexes such as diversity within species, and between species of the ecosystems.

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Explain the cell theory and distinguish between the three basic types of cells.
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Trace minerals are needed in much smaller amounts than major minerals, but they are just as essential for good health. They are
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Answer:

1. Heme iron is found in animal foods like meat and poultry, whereas the nonheme iron form is found in plant foods like grains and vegetables.

2. The metal and trace mineral copper is part of several enzymes and proteins.

3. Adequate zinc is important for maintaining a healthy immune system and may aid in wound healing.

4. Selenium acts as an antioxidant and aids in thyroid function.

5. Fluoride is not considered essential, but it is very important for maintaining strong, healthy teeth.

6. The deficiency disease goiter was much more common before iodine was added to salt in the United States.  

7. Manganese acts as a cofactor for a variety of enzymes and also plays a role in synthesis of bone.

Explanation:

  • Iron: The major difference between the iron provided by animals Heme Iron) and plants (Nonheme iron) is that the heme iron is better absorbed by the organism. There are several mechanisms in the intestine that improve the heme iron absorption that is used for producing red globules for the organism. Carnic products such as red meat, fish, and poultry are rich in heme iron. Vegetables contain nonheme iron, which is harder to assimilate by the organism and thus its absorption is lower.
  • Copper: Is an essential element for life that intervenes in the electronic transport chain, being part of the IV complex. It is also part of the enzyme that catalyzes the decomposition of the superoxide ion, toxic for living organisms. Copper is an element of the hemocyanin which is a protein present in some invertebrates, with a function similar to hemoglobin.
  • Zinc: This metal has many uses in industry. In health, it is used in dietetic supplements, to maintain its correct levels. It is also useful in wound healing, in reducing duration and severity of colds, and has antimicrobial properties that help to relieve gastroenteritis symptoms. It is added in solar protectors, in toothpaste for good breath, and in the shampoo to deal with dandruff problems.
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3 0
3 years ago
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