Answer:
spiders
Explanation:
While humans and many other species have red blood, due to the iron in their hemoglobin, other animals have different colored blood. Spiders(as well as horseshoe crabs and certain other arthropods) have blue blood due to the presence of copper-based hemocyanin in their blood. Some animals, such as the sea cucumbers, even have yellow blood.
Surface area is an important factor in limiting cell growth because
a. the cell can burst if the membrane becomes too large.
b. materials cannot enter the cell if the surface is too large.
c. the cell may become too large to take in enough food and to remove enough wastes.
d. waste products cannot leave the cell if the cell is too small.
Answer:
c. the cell may become too large to take in enough food and to remove enough wastes.
Explanation:
The exchange of substances with surroundings is done by cells by the process of diffusion. The rate of diffusion of substances requires the presence of a higher surface area than volume. As the cells become larger, their surface area is reduced with respect to the volume. Therefore, larger cells can not support the diffusion of substances in and out as required for its proper functioning. If cells are allowed to grow continuously, they will not be able to intake the requires materials such as food and to release the waste outside.
Answer:
hydropower is the best source
DEET, a popular synthetic insect repellant.
DEET- Numerous repellent products include the active component DEET (N,N-diethyl-meta-toluamide). It is frequently used to ward off biting insects like ticks and mosquitoes. DEET can be applied to kids of any age, according to the FDA. Since results from studies conducted for product registration reveal no difference in effects between young animals and older animals, there is no restriction on the proportion of DEET in the product for use on children.
Insect Repellant- Products that discourage insects are known as insect repellents. These might be skin care products or items like candles or lanterns with heating mechanisms that release repellents.
To know more about the DEET, click on the below link,
brainly.com/question/9866118
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