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andrew-mc [135]
3 years ago
5

A flu virus can remain infectious on surfaces such as desk and doorknobs for long periods of time how does the ability of the fl

u virus to remain infectious on surfaces lead to high rates of the flu illness
Biology
1 answer:
Sunny_sXe [5.5K]3 years ago
3 0

Answer:

because the germs spread and when other people touch it and are carriers and they will probably get sick too

Explanation:

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The only competitors that humans have for food are other humans and insects <br> Agree or disagree ?
konstantin123 [22]

The only competitors that humans have for food are other humans and insects: Agree; we do compete with other animals for food

<u>Explanation:</u>

The term competitor is used to describe interaction that takes place within any two organisms as a result of which both the organisms are affected. The functional role that an organism have within the environment is known as Niche.

Parasitism refers to the interaction that takes place between any two organisms or species as a result of which only one will get benefits and the other one will be getting affected.In an ecosystem, every organism strives hard for living and need food for its survival. Hence, the competitors for food in an ecosystem will be other human, insects, animals, etc.

5 0
3 years ago
A child has sickle-cell disease (ss) but neither parent is ill. What must be true of her parents’ genotypes? The father is heter
Andreyy89

Answer:

Both parents are heterozygous carriers.

Explanation:

Both parents are heterozygous carriers. Sickle Cell Anaemia is usually referred to as a recessive condition since an individual must have two copies of the sickle gene in order to have the disorder.

Since neither of the parents is ill, both of them must be heterozygous carriers for the child to have the disorder

3 0
3 years ago
Read 2 more answers
Coral reefs support more species than any other marine environment. The biodiversity in a coral reef is great, and scientists es
fomenos

Answer:

The artificial reef would decrease erosion of the coastline.

Explanation:

Artificial reefs are created in area where there is little uderwater topography or near established coral reefs to imitate or even substitute for natural coral reefs where they are absent or endangered due various factors which are mostly human in nature. The artificial serves to provide a habitat for marine organisms and ensure more biodiversity around the area by providing shelter from predation and surfaces for encrusting organisms such as corals and sponges to grow on. The growth of these lower level food chain organisms attract larger predator organisms thereby increasing the biodiversity in the area.

Artificial reefs are made from a variety of materials such as shipwrecks, construction debris, oil rigs, concrete, and any other man-made objects. Since reef structures protect shorelines against waves, artificial reefs would decrease the erosion of the coastline providing benefit to the people living along the coastline by preventing the destruction of beaches and coastal property,

3 0
2 years ago
LIttle Jimmy Brown's blood typing results showed agglutination with both the plasma containing anti A and anti B antibodies. Wha
Marat540 [252]

Answer:

Jimmy's blood type: "O" Blood

Jimmy can receive blood from: O blood type only.

Explanation:

The anti-A antibodies are present in the plasma of "B" blood type. Similarly, the blood type "A" has anti-B antibodies in its plasma. Since Jimmy's blood is showing agglutination with both "A" and "B" blood type, he has "O" blood type.

The "O" blood type has both anti-A and anti-B antibodies in its plasma and exhibits agglutination with both A and B blood type. The "A" antigen of "A" blood type reacts with anti A antibodies of jimmy's blood while "B" antigen of "B" blood type would exhibit agglutination with "anti B antibodies" of Jimmy's blood. He can get blood from "O" blood type only as he has both anti-A and anti B antibodies in his blood plasma.

7 0
3 years ago
What is the importance of guard cells ?
WITCHER [35]

The guard cell is responsible for controlling the size of the stomata in leaves. These do so as a result of an interaction between potassium ions and water in and around the cells. When potassium ions accumulate inside the guard cells the water potential inside these cells is lower than that of the outside and as a result, water has to be taken in. This makes the guard cells turgid which in turn stretches them and results in the opening of the stomata. Meanwhile, when potassium ions accumulate outside the cell, the opposite scenario results. Water from inside the cell moves out, making the guard cells flaccid, thus causing these to cover (and effectively close) the stomata.  

5 0
3 years ago
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