<span>A biotic factor is a living thing in an ecosystem. The biotic factors can be separated into three different groups; producers, consumers, and decomposers. Examples of biotic factors are animals, plants, trees, bacteria, and molds.</span>
Answer:
Keystone species
Explanation:
Keystone species are such species that had a large effect on the natural environment. Such species are very important species as they play key role in determining and maintaining the the structure of an ecosystem and also decide or fix which type of species will be there in that environment and what will be the number of those species in that particular community. Without these keystone species an ecosystem could completely cease or all species could not work in that same manner all-together. Wolf is one of an important keystone species in the ecosystem.
<span>B) 50%
The reason for this is because if the mother and the father, one is infected, and the other not, then it would be a 50/50 chance. </span>
Answer:
Role of epidermis in plants :
1. Protection of the underlying cells and tissues.
2. Prevention of water loss.
3. Prevention of mechanical injury and invasion by parasite fungi.
4. Absorption of water.
5. Exchange of gases and transpiration through stomata.
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