Answer:
DNA is located in the nucleus, but can also be found in other cell structures called mitochondria. Since the nucleus is so small, the DNA needs to be tightly packaged into bundles known as chromosomes.
Explanation:
Answer:
They are the first trophic level in an ecosystem and without them the rest of the organisms in the ecosystem would have no source of energy
Explanation:
The autotrophs are the producers in the ecosystem. They manage to produce food for themselves, and they represent the first trophic level, thus they are the basis of any ecosystem. These organisms are the once that produce the energy, and the organisms in the trophic levels above them use their energy to survive. If the autotrophs are removed from and ecosystem, the ecosystem will collapse, as there will be no source of energy for the organisms in the trophic levels above, thus all of them will die out quickly.
Answer:
1st point describes both the sperm and ovum.
Answer:
D.
holds the bones of the skeleton together
Explanation:
Hippocrates was a Greek physician, he is well known for the discovery of the medicines, which were based on the scientific observation. He is also known as virtual originator of the etiology and the pathology.
Hippocrates suggested that the body can remain disease free, or the chances of being diseased can be diminished, if good diet, fresh air, cleanliness and exercise are maintained.
Hence, four things, which help body to heal itself, according to Hippocrates are:
- Good diet
- Cleanliness
- Exercise
- Fresh air
