Answer:
Plants are valuable since they provide our food, materials for shelter, and purify the air (photosynthesis).
Animals such like livestock, supply us with food, fiber and leather.
The Endangered species act can help a local economy because it helps to supply clean air and pure water. It also protects our natural supplies.
Answer:
Seminal vesicle
Explanation:
Seminal vesicle secretes an alkaline and viscous fluid that constitutes about 60% of the volume of semen. The fluid secreted by seminal vesicle contains fructose which is a monosaccharide sugar, prostaglandins, and clotting proteins. The alkaline nature of the seminal fluid neutralizes the acidic environment of the male urethra and the female reproductive tract. This is required as the acidic conditions inactivate and kill sperm.
The fructose sugar serves a fuel for ATP production by sperm. Prostaglandins are responsible for sperm motility and viability as they stimulate smooth muscle contractions within the female reproductive tract. Therefore, a malfunctioning seminal vesicle would result in low semen volume and reduced motility due to the scarcity of energy.
A polar climate only has 2 subtypes. These are tundra climate (ET) and the ice cap climate (EF).
Both climate lack of warm summers. The average temperature is less than 10 degree Celsius. In a tundra climate, they experience at least a month of having above zero temperature compare to an ice cap which is always below zero.
Scientists suspect that human language evolved around 150000 years ago.
<span>the human language is linked to the Homo Sapiens who lived around 150,000 to 200,000 years ago in eastern or perhaps southern Africa</span>
The reason why scientists suspect this is <span>by evidence of abstract and symbolic behaviour in the early modern humans, taking the form of engravings on red-ochre.
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Answer:
Yes
Explanation:
Do your traits and your parents traits
