Animals with a three-chambered heart would include Amphibians.
- Amphibians have three-chambered which comprises of two Atria and one ventricle. Examples of Amphibians include Frog, Toads, Salamanders.
- In Amphibians heart blood from the single ventricle travels to the lungs, skin, and body, where it is oxygenated. Before being pumped out of the heart, deoxygenated and oxygenated blood are mixed in the ventricle.
- This is because the Amphibians have low rate of metabolism and thus requires less oxygen for their metabolism.
- As a result heart's load to deliver oxygenated blood to body is lowered.
Thus, from the above pointers we can conclude that only Amphibians from the option have three-chambered heart.
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Genetically modified (GM) foods are the ones came from organisms whose genetic material (DNA) are altered as they do not occur naturally. Food shortage, cost, variety can make people support the GM foods, while, religious beliefs, allergy, and worrying about the food can limit the support for these foods.
<h3>What are the characteristics of GM foods?</h3>
Genetically modified (GM) foods are those derived from organisms the ones genetic material (DNA) has been altered as they do not occur naturally.
Its characteristics are:
- More nutritious food.
- Less use of pesticides.
- Faster growing plants and animals.
- Disease- and drought-resistant plants.
As food shortage, cost, variety can make people support the GM foods, while, religious beliefs, allergy, and worrying about the food can limit the support for these foods.
Thus, the correct option is A.
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Answer:
b. thymine I believe but if needed looking it up should be no problem
Explanation:
g-c
a-t
Answer:
Practice that provides the best means of protecting biodiversity in the wild for future generations is - <u>expanding breeding programs for endangered species .</u>
Explanation: The best way of preserving biodiversity for future generations in the wild -
- <u>Expanding breeding programs for endangered species . -:</u> Breeding programmes, such as the panda, help conserve endangered species. Replanting hedgerows because there is greater biodiversity in them than the fields they surround, minimizing deforestation and the release of greenhouse gases, protecting and creating new endangered ecosystems, often by making National Parks.
The other statements are not so suitable means of protecting biodiversity in the wild for future generation as the first statement indicates about the initiation of recycling programmes in neighborhood , which has no role in preservation of biodiversity or wildlife because the statement is about keeping the environment clean and healthy .
The other statement is about reduction of air pollution as buying vehicles with reduced carbon emissions improves the quality of air.
And the other statement of Protecting wildlife areas such as national parks comes under the other statement which states "expanding breeding programs for endangered species".
Hence , the correct option is D.
