Answer:
First class lever
Second class lever
Third class lever
First class lever
First class lever
Third class lever
Second class lever
Second class lever
Explanation:
A lever is one of the types of simple machine. It is used to rotate on a fixed point. Load, effort and fulcrum are the three important parts involved in the functioning of lever. In the first class lever, the fulcrum is situated in the middle of the load and the effort. In the second class lever, the load is situated in the middle of the fulcrum and effort. In the third class lo=ever, the effort is situated in the middle of the fulcrum and the load.
Cells use cyclins and cyclin-dependent kinases to control the cell cycle. Different combinations of cyclin/CDK start the cell cycle at different checkpoints and monitor the cycle for quality control. In G1 stage, the cell is growing and preparing to replicate DNA. DNA replication occurs in the S stage . In G2 stage , the cell takes inventory to ensure it is ready to proceed to mitosis . If the spindle apparatus malfunctions, the cycle won’t proceed to cytokinesis.
Each stage of the cell cycle has related cyclins that help the progression of that phase. Cyclins bind to cyclin-dependent kinases and activate them. The kinases are therefore able to phosphorylate particular protein and activate or deactivate them appropriately to progress the particular cell cycle stage. P53 tumor suppressor protein proteins help regulate this progress at each checkpoint. They do so by activating CDK inhibitors when required (such as when there is damage to the cells DNA).
Answer:
Trait
Explanation:
It is a genetically determined characteristic.
Hope this helps!
Brainliest is appreciated. :D
Answer:
Our body produces heat energy.
Explanation:
When our body temperature decreases than normal range, our body produces heat to maintain internal heat in the normal range. Our internal body temperature is regulated by hypothalamus which is a part of our brain. The hypothalamus regulate the temperature and take actions to maintain it in the normal range of temperature which is about 37°C. If our body temperature is too low, the hypothalamus order to the body to generates heat energy and maintains heat in the normal range. The sweat glands remain inactive in order to prevent heat losses.
Answer:
i think its ruby to the steamstress.