What term describes organisms that live on or in the ocean floor?

What is used to prevent a viral infection?

Rufina [12.5K]

Answer:

Please mark me brainliest

Explanation:

Many of these diseases can be prevented by the use of viral vaccines, which stimulate protective immunity against the virus without causing major disease. Viral vaccines may also be used in active viral infections, boosting the ability of the immune system to control or destroy the virus.

7 0

3 years ago

Which of Virginia's watershed protection programs builds structures that protect areas from flooding?

Blababa [14]

Answer:

The Dam Rehabilitation Program

Explanation:

The Small Watershed Rehabilitation Amendments of 2000, which was well termed as the Dam Rehabilitation Program is mainly an amendment to PL-566 giving power and privilege to the Secretary of Agriculture to give aid to possessor of public dams created formerly under PL-566, PL-534, the RC&D Program and the Pilot Watershed Program.

This program was established in respect to the high levels of aging dams (greater than 11,000) esrablished across the nation from 1948 with a increasing amount that requires rehabilitation to keep up with the several importance they provide.

Dam Rehabilitation:

In Virginia, 150 dams is considered as belonging to the state’s landscape/infrastructure via the PL-566, PL-534, and Pilot Watershed programs. One care infer that, one-third of these dams requires maintenance, if not repaired, could lead to high dangers of environmental, economic, and social effects. The dams were constructed to preserve agricultural lands and small towns and regions from the endangering impacts of flooding. It also acts as a source of water supply and recreational opportunities, protecting fish and wildlife habitat, and preserving of water quality.

Some of the dams in the Dam Rehabilitation program in Virginia includesMarrowbone Creek in Henry County; Inch Branch, Robinson Hollow, Toms Branch, Mills Creek, Todd Lake, and Hearthstone Lake in Augusta County; and Royal Lake, Lake Barton, Woodglen Lake, and Huntsman Lake in Fairfax County.

4 0

3 years ago

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how does the random alignment of homologous chromosomes contribute to genetic variation in a population

SCORPION-xisa [38]

The assortment of homologous chromosomes during meiosis is random and generates genetic variation, the raw material for evolution.

During metaphase I of meiosis, homologous chromosomes are lined up at the equator plate of the cell in order to be separated (assorted) in anaphase I.

The separation of homologous chromosomes during meiosis I is random. Daughter cells receive unique gene combinations from an original parent cell.

Subsequently, haploid cells got from two successive meiotic divisions fuse during fecundation to form a diploid (2n) zygote.

During prophase I, non-sister chromatids interchange genetic material by a process known as recombination. This genetic process also increases genetic variation in daughter cells.

In conclusion, the assortment of homologous chromosomes during meiosis is random and generates genetic variation.

8 0

3 years ago

Black coffee has a pH around 5; hand soap has a pH of 10. How many times more acidic is coffee relative

Anon25 [30]

Answer:

$\boxed {\boxed {\sf 10^5 \ or \ 100,000 \ times \ more \ acidic}}$

Explanation:

The pH scale stands for the power or potential of hydrogen. It measures how acidic or basic a solution based on the concentration of hydrogen ions and a scale from 1 to 14.

This scale is unique because it is logarithmic. So, every time the pH changes by 1 on the scale, the actual concentration of the solution increases or decreases by a tenfold.

So, a solution with a pH of 7 is ten times more acidic than a solution with a pH of 8. This can be translated to:

$10^ {difference \ in \ pH}$

The black coffee has a pH of 5 and the hand soap has a pH of 10. We want to find how many times more acidic coffee is, so we subtract 5 from 10 and get 5. The difference in pH is 5.

$10^5=100,000$

Coffee is 10⁵ or 100,000 times more acidic than hand soap.

3 0

3 years ago

Where is the Suez Canal? a Egypt b Jordan

lora16 [44]

Where is the Suez Canal?

a

Egypt

7 0

3 years ago

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