Answer:
the cell membrane is selectively permeable
Explanation:
hope that helped
Answer:
keystone species
Explanation:
Keystone species are indispensable species that are essential to the maintaining of the balance of an ecosystem, and also play a major role in the way species in the ecosystem interrelate. The absence or removal of a keystone species from a habitat or ecosystem would lead to the disruption and imbalance of the ecosystem, and as such lead to the extinction of other species.
An example of a keystone species is the bee. Bees are very important in pollination of flowering plants and also ensure their survival. This plants serve as home to various insects that are source of food to birds. The removal of bees from this ecosystem would affect the ecological balance of this ecosystem.
What happens is the plants absorb the carbon dioxide in the air which we produce by breathing in oxygen and breathing out carbon dioxide. They then combine the carbon dioxide, water, and sunlight because most plants cannot live with sunlight, to create glucose which is the second formula you have in your question.
