Answer:
Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function.
Answer:
photosensitive
Explanation:
we breathe in oxygen and breathe out carbon dioxide then all that stuff goes in the air and back into plants where it produces oxygen
The answer for the first question is
1. 5ml
The answer for the second question is
2. 4g/ml
Answer:
The number of habitats falls below a critical level.
Explanation:
The possible reason for extinction is that the number of habitats falls below a critical level. This makes it impossible for organisms to survive.
- A habitat is the dwelling place of living organism in an ecosystem.
- The resources and other materials that ensures the survival of an organism are made available in the habitat.
- When a habitat begins to thin out and can no longer support organisms, then extinction will ensue.
A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.
