Explanation:
HIV attacks a specific type of immune system cell in the body. It's known as the CD4 helper cell or T cell. When HIV destroys this cell, it becomes harder for the body to fight off other infections. When HIV is left untreated, even a minor infection such as a cold can be much more severe.
Answer:
Explanation:
The flowers are the reproductive structure of plants that produce fruits.
When the fruits produced by flowers has fragrance, the smell will attracts animals and even man to pluck and eat it. Once they finished consuming it , it will be disposed anywhere the animals find themselves.
If the fruits has sweet tasting, the animals or man that consumed it at the first time will constantly go to the pants to pluck more fruits because of its good tastes sand this will attract alot of animals or men to pluck more of it and take away, once this is done it is been easily disposed and found all over the place.
it hydrostatic im not sure
Stem cells because they are compatible of dividing and renewing themselves after long periods
Trees are very important natural resources. They are the source of food, shelter and habitat. We get various woods, timber , fodder from the forest. Trees hold the soil firmly. Forests helps in conducting water cycle. If trees are cut down then environmental pollution will increase because trees purify the Air. Land pollution , air pollution , water pollution may increase. Biodiversity can be affected.
