Explanation

Leukemia is a cancer of the blood and bone marrow.

Explanation

Answer::

D

A single gene mutation results in resistance to DDT and pyrethroids, a class of pesticides used in bed nets. According to a new study in the journal Geno Mosquitoes (Anopheles funestus), Geno Mosquitoes (Anopheles funestus) is a malaria vector, and most strategies for controlling disease epidemics focus on controlling mosquito populations with pesticides. I'm guessing. The spread of resistance genes can delay efforts to prevent  disease. 

Explanation

Virus is an ineffective agent that typically consists of a nucleic acid molecule in a protein coat,

is too small to be seen by light microscopy,

and is able to multiply only within the living cells of a host.

Explanation

• Hookworm larvae can enter the body via any component that comes in touch with inflamed soil, although most often they penetrate the skin of the feet. within the body, they tour thru the lungs to the gut, in which they'll grow into adults.
• Hookworm larvae are discovered in human feces and transmitted to humans from contaminated soil via the skin, usually because of walking barefoot, or by means of by chance eating contaminated soil.  once in the body, larvae are carried via the bloodstream to the lungs and mouth where they are swallowed, digested and handed to the small gut.

Explanation

answer: [c] Mouth to mouth resuscitation

• performing CPR which intended checking the airway and doing mouth-to-mouth resuscitation in addition to chest compressions are the first aid in the course of cardiac failures.
• 
  specialists now propose chest compressions by myself can maintain the coronary heart pumping and maintain blood go with the flow for a couple of minutes till emergency workers arrive.

Explanation

Answer: D

The disease affects cattle, pigs, sheep, goats, and other ruminant ungulates. Intensively bred animals are more susceptible to disease than traditional breeds.

Explanation

Correct answe:

C

Explanation

Answer:

B

According to Archimedes' principle, when an object is completely or partially submerged in water, the water moves according to its volume. The body swims in the water when its weight is lighter than the weight of the same amount of water. If its weight is equal to the weight of the same amount of water, it remains floating.

Explanation

The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone.

The heart pumps blood through the network of arteries and veins called the cardiovascular system.

Explanation

The world's biggest killer is ischaemic heart disease, responsible for 16% of the world's total deaths.