Answer:
C. Only 1, 3 and 4
Explanation:
Deforestation is the process of cutting down trees by man, which eventually lead to the the sparseness of trees in otherwise forested areas. The reasons for cutting trees by man may include: habitation by man, clearing the land for agriculture or grazing, or using the timber for fuel, construction or manufacturing as well as mining of minerals.
Deforestation leads to many adverse effects on both man and his environment. These adverse effects include:
Loss of biodiversity in the forests which may lead to extinction of species.; when forest areas are cleared, plants and animals who live in these forests lose their homes and some may eventually die off due to inability to survive in other habitats
Increase in temperature of the earth: Trees serves to cool the earth by removing some gases which cause heating of the earth from the earth. Such gases include carbon dioxide. When these tree are removed, these gases accumulate in the atmosphere leading to increase in earth's temperature.
Also, since tree absorb some gases while releasing others into the atmosphere, when these trees are cut, there would be an imbalance of these atmospheric gases.
Answer:
destruction of infected cells by cytotoxic T cells, or the destruction of intracellular pathogens by macrophage
Explanation:
A cell-mediated immune response is an immune response that does not involve antibodies. Cell-mediated immune responses involve the destruction of infected cells by cytotoxic T cells, or the destruction of pathogens by macrophages.
The answer cannot be either of the options involving B cells, as these are involved in the antibody response. The cytotoxic T cells are what actually destroy the infected cells (not helper T cells). Therefore, the answer is destruction of infected cells by cytotoxic T cells, or the destruction of intracellular pathogens by macrophage
The answer is: more water will be reabsorbed in the kidney tubules.
Kidney tubules are the part of a nephron, a basic unit of function and structure of the kidney. The function of nephrons is secretion and reabsorption of a variety of solutes. If the concentration of solutes in the blood rises above certain level, this is a signal for kidney tubules to reabsorbe water. With more water in the blood now, the concentration of solute will reduce.
Fossil
Explanation:
Fossils are the imprints or remains of living things that tells us the history of life in the geological past.
Fossils can also be defined as the preserved remains of dead organisms that once lived in geologic time past.
- Fossils can be body fossils which preserves part of the body of an organism usually the hard part.
- They can be trace fossils which are the preserved prints of organisms.
- They are usually used to trace the evolutionary history of an organism.
- The tell us about the climatic and environmental conditions of organisms that once lived.
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Hi the answer is usually about 1 unit of insulin per 15g carbohydrate.
Hope this helps.
