Answer:
The birds are oviparous in nature and produces eggs that are hatched later by the parent. the egg hatching require proper heat and protection from the external enemy.
The egg shell is the hard covering of the egg of the bird that is made of the calcium. The egg shell protect the egg from the external environment. The calcium layer for the egg shell formation is obtained by the oseteoclast property of the cells.
<span>An insulin receptor is a neurotransmitter that is activated by the presence of insulin. This receptor is usually represented by the abbreviation (IR),</span>
Answer:
A limiting factor is anything that constrains a population's size and slows or stops it from growing. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources.
Explanation:
B. Cell wall and a central vacuole
The cell wall is a rigid structure that surrounds the cells and allows plants to stay upright. Animal cells are more fluid.
The central vacuole is a large region in the cell that stores nutrients and fluids. Many cells, including animal cells, contain vacuoles, but most are small, and only plant cells contain large central vacuoles.
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Answer:
These efforts will decrease the amount of heat that the atmosphere traps.
Explanation:
Both Carbon dioxide and methane are considered to be green house gases.
However, green house gases are known to cause climatic changes by trapping or absorbing heat from the sun or in some other cases, produces large amount of heat through combustion, the result which can give rise to respiratory disease from smog and air pollution.
Hence, when Scientist tried to reduce the amount of carbon dioxide and methane into the atmosphere their efforts will decrease the amount of heat that the atmosphere traps.
