Answer:
Bacteria are single-celled organisms that live in different environments, including cold and hot, and they can also live on or inside the human body.
Most types of bacteria are harmless, on the contrary, they help in the process of digesting food, attacking other microbes and fighting cancer cells, and less than 1% of bacteria are bacteria that cause diseases.
As for viruses, they are very small organisms, smaller than bacteria, consisting of DNA and a protein that coat them, and unlike bacteria, a virus does not reproduce without its presence in the cells of living organisms.
Answer:
The number of white blood cells in the blood can increase during an immune response. These cells travel through the circulatory system and the lymphatic system to an injured or infected area of the body. White blood cells leave the blood vessels and travel into the damaged tissue, where the immune response takes place.
Answer:
Aquaculture and fishing are different from each other in many aspects.
Explanation:
Aquaculture can be defined as the process of cultivation of both the aquatic plants and animals, where as Fishing can be defined as catching or harvesting different fishes only. Aquaculture can be of two types- Marine water and fresh water aquaculture. Aquaculture increased the production of food for the consumption of human and also increase the national import level. Fisheries generally deals with catching and selling fishes. Main point that can be noted is- pearls can be gained only through the process of aquaculture not through fishing.
The
answer is c. shear
When earthquakes occurs, rocks are constantly exposed to forces
known as stress which cause deformation of rocks that tend to bend, twist, or
fracture them. The respond to stress that result to changes in shape, size, or
volume are referred to as strain.
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If stress act
equally from all directions, the applied force is a uniform stress. However,
if stress is not equivalent from all directions then it is a
differential stress. Moreover, there are various kinds of differential stress namely,
tensional stress that causes the rock to stretch, the compressional stress
that squeezes the rock and the shear stress which is a consequence of
slippage, twisting or transformation of rocks.
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