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3 years ago

Studies have been conducted on synthetic products, including DDT and estrogen. The use of these

Biology

2 answers:

kirill115 [55]3 years ago

6 0

Answer:

The debate over the use of GM foods started ever since the production of the first GM foods. Supporters of the GM foods tell that the GM foods have been thoroughly tested and approved by the FDA and in the long term they will be the best strategy to overcome malnutrition as the population is rising rapidly. Critics of the GM foods explain the threat that these foods can lead to the natural varieties to become extinct, As a result, there would be no variations among crops which could be a concerning and threatening situation. Also, they are concerned that it might happen that over the long term GM foods might be harmful.

Genetic medicines although properly tested may show differential results when used on people or may give rise to certain other conditions which the humans are unfamiliar for now.

IrinaVladis [17]3 years ago

4 0

Genetic engineering is considered safe by the government, showing no health concerns.
There is a risk of cancer and other health concerns that have not been studied.
Using genetic engineering could cause health problems in the future.
Genetic engineering is similar to using synthetic products such as DDT and estrogen and could affect organisms in a similar manner.

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great rest of Black History Month! :-)

- Cutiepatutie ☺❀❤

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Suggest an explanation for why using a condom helps to limit the transmission of HIV,

Cloud [144]

Answer and Explanation:

HIV is a sexually transmitted disease that is caused by AIDS, a virus. Malaria is a protozoan disease that is cause by <em>plasmodium spp</em>. Both the virus and sporozoites of plasmodium live inside humans. However, in malaria, the sporozoites are inactive form of the parasite and they live in the human liver. The human being acts as an intermediate host for the life cycle to be complete.

In HIV, the virus incorporates its DNA into the host(human) genome and uses the resources to produce proteins that are found in the blood. Using a condom helps limit the transmission of HIV because the virus lives in the blood cells but does not affect the transmission of malaria because the sporozoites live in the liver and other organs. HIV can be transmitted sexually, transfusion with contaminated blood, sharing of infected needles and syringes while malaria is only transmitted through a mosquito bite.

5 0

4 years ago

1. The atrioventricular valves permit blood flow:

gayaneshka [121]

Answer:

1. A) in one direction only.

2. B) pulmonary valve.

Explanation:

The heart consists of four cavities: two atria (upper cavities) and two ventricles (lower cavities). Blood passes through a valve before leaving each cavity of the heart. The valves prevent the backward flow of blood. Actually, the valves are fins (leaflets) that act as single-way blood inlets on one side of the ventricle, and as single-way blood outlets on the other side of the ventricle. Normal valves have three fins (leaflets), except the mitral valve, which only has two.

The four valves of the heart are the following:

• The tricuspid valve controls blood flow between the right atrium and the right ventricle.

• The pulmonary valve controls blood flow from the right ventricle to the pulmonary arteries, which transport blood to the lungs to oxygenate it.

• The mitral valve allows oxygen-rich blood from the lungs to pass from the left atrium to the left ventricle.

• The aortic valve allows oxygen-rich blood to pass from the left ventricle to the aorta, the largest artery in the body, which transports blood to the rest of the body.

As the heart muscle contracts and relaxes, the valves open and close, allowing blood flow to the ventricles and atria alternately. The following step-by-step illustration explains the normal operation of the left ventricle valves:

- When the left ventricle relaxes, the aortic valve closes and the mitral valve opens. This allows blood to flow from the left atrium to the left ventricle.

- When the left atrium contracts, more blood flows to the left ventricle.

- When the left ventricle contracts again, the mitral valve closes and the aortic valve opens so that blood flows to the aorta.

<em>When we talk about atrioventricular valves, it means tricuspid valves and the mitral valve</em>

6 0

4 years ago

Is Earths global mean temperature changing? explain your answer the words TREND and FLUCTUATION.

beks73 [17]

Answer:

Yes the Earths golbal mean temperature is changing.

Explanation:

The global temperature record represents an average over the entire surface of the planet. The temperatures we experience locally and in short periods can fluctuate significantly due to predictable cyclical events (night and day, summer and winter) and hard-to-predict wind and precipitation patterns. The strong warming trend of the past four decades likely reflects a shift from comparable aerosol and greenhouse gas effects to a predominance of greenhouse gases, as aerosols were curbed by pollution controls, according to former GISS director Jim Hansen.

7 0

4 years ago

Step 1: Research your organism. a) Receive the name of an organism from your teacher. b) Type your name and the name of your org

Tju [1.3M]

You have to research these in order to get your answer

8 0

3 years ago

Lactase and carbonic anhydrase are examples of what type of substance?

docker41 [41]

Answer:

Enzyme

Explanation:

4 0

3 years ago