1. It requires two parents.
<span>2. It takes time and energy.
</span><span>3. It can prevent favourable genes from being passed to offspring.
</span><span>4. It produces fewer offspring than asexual reproduction.
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You didn't give options so I couldn't properly answer your question.
However, hope this helps xox :)
Answer:
1. Support
2. Protection
3. Movement
4. Supply & Storage
Explanation:
1. Support : It provides a framework to support the organs and tissues of the body.
2. Protection: It protects our internal organs. The skull protects the brain; the thorax (sternum, ribs and spine) protects the heart, lungs and other viscera (organs within the thorax).
3. Movement: It provides a framework for muscles to attach. Then when the muscles contract they pull on the bones of the skeleton, which act like levers to create movement.
4. Supply & Storage: The bones that make up the skeleton are a source of both red blood cells (which transport oxygen) and white blood cells (which fight infection), which are formed within the bone marrow.
About 7 years hope I helped :)
Answer:
I think it explains that the DNA molecules are double helix with alenine and thymine paired together
