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Nookie1986 [14]
2 years ago
11

One of the reasons for the success of the smallpox eradication campaign was that

Biology
1 answer:
Pavlova-9 [17]2 years ago
4 0
One of the reasons for the success of the smallpox eradication campaign was that small pox only occurred in humans. Smallpox is an extremely contagious and deadly virus for which there is no known cure. it is caused by two variants, Variola major and Variola minor. it is a disease of the past that was eliminated by worldwide vaccination. 
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Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of
WARRIOR [948]

Answer:

The correct answer is C and Engelmann conducted this experiment to prove relationship between algae and the rate of photosynthesis.

Explanation: First we must talk about 3 facts:

1) Prism scatters the white light into different wavelengths.

2) Photosynthesis, 6 carbon dioxide and 6 water molecules are consumed and 6 oxygen and 1 sugar molecule is synthesized using light energy.

6CO2 + 6H2O → C6H12O6 + 6O2

3) Aerobic bacteria breaks down sugar while using oxygen and produces water and carbon dioxide in simplified terms.

So with this experimental setup a researcher can understand the rate of the photosynthesis by increased accumulation of aerobic bacteria near algae  in certain wavelengths since they uses oxygen and tend to move close to the oxygen source (<u>see figure</u>). In this experiment there are no ways to measure heat (B), there is no known relation between wavelength of light and aerobic respiration since it can happen even in the dark (A) and finally there are no ways to measure carbon dioxide (D).

5 0
2 years ago
The food web above represents feeding relationships in a biological community near a deep-sea hydrothermal vent. Hydrothermal ve
Pani-rosa [81]

Answer: c) Some organisms rely on energy captured from inorganic compounds to drive basic biological processes.

Explanation:

Deep-sea hydrothermal vents are hot spots of geothermal water. The organisms living in deep-sea vents cannot obtain energy from sunlight. They are dependent on chemosynthesis, which involves the utilization of inorganic substances to produce organic substances, which allows their survival and act as a source of energy. In the given situation, bacteria present on the surface of mussels are capable of chemosynthesis also the mussels are dependent upon inorganic hydrogen in seawater. Thus chemosynthesis supports the survival of organisms living in the deep sea vents.

6 0
2 years ago
what is the difference between sun rays that strike at the equator and the sun rays that strike at the poles
nikklg [1K]
The sun rays that hit the equator are hotter because the equator is pointed more to the sun
Rays that strike the poles arent that effective because of the earths tilt, and it's rotating and revolving constantly
5 0
2 years ago
According to the food chain, label the following organisns appropriately
aniked [119]
2rabbit   4snake   1owl   3carrot
4 0
3 years ago
A life-form in the Precambrian time was ___
IgorLugansk [536]
The life-form during the Precambrian time was cyanobacteria.
3 0
2 years ago
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