Answer:carbon,hydrogen, nitrogen, oxygen, phosphorus, sulphur
Explanation:living things are characteristized by hierarchy in their organisation.macromolecules are made up of elements each with it's unique chemical bonds.
Within the cell, macromolecules are found in organelles ,which form the cells.the cells combines into tissues,which combines into organs .organs systems consists of similar functional organs.
living things commonly contains carbon, hydrogen, nitrogen,oxygen, phosphorus and sulphur.
(Mnemonic---CHNOPS)
Answer: the cell membrane helps to maintain homeostasis levels
Homeostasis in an organism or colony of single celled organisms is regulated by secreted proteins and small molecules often functioning as signals. Homeostasis in the cell is maintained by regulation and by the exchange of materials and energy with its surroundings.
Explanation:
There would be half the number of chromosomes in the gametes...so 4.
<em>Deoxyribonucleic Acid</em>
Three human activities that may make the slopes unstable are the following:
1. Deforestation
Cutting off trees may result to loose soil since there will be lesser roots that will hold the soil together. When rain water runs off the slope, it will make the slope more unstable, resulting to mud/land slide.
2. Water excavation/extraction
This may also result to unstable slope, because the soil may sink as more water is extracted from the ground to supply the need of the growing population. In extreme cases, this may result to the formation of sinkhole.
3. Drilling of the earth
Drilling may result to unstable slope if is done in a landslide prone area as it will disturb the formation of rocks and soil.
