Question

solve it for 50 points​

Answer 1

Answer:

1)1665

2) Mitochondria

3) Chloroplasts

4)icterus

5)Salmonella typhi

6)key symptoms are diarrhoea and dehydration...rarely shock and seizures may occur in sevre cases

7) Prokaryotic:

1. size generally small
2. Nuclear region:poorly defined and known as nucleoid
3. single chromosome

4. Membrane bound cell organelle are absent

Eukaryotic:

1. Generally large in size
2. Nuclear region: well-defined and surrounded by a nuclear membrane
3. More than one chromosome present

4. membrane bound cell organelle are present..

8) prevention of malaria

1. Apply insect repellent to exposed skin
2. wear long sleeved clothes and long pants if u are outdoor at night
3. Use mosquito net over your bed if ur bedroom is not air conditioned or screened...

4.spray an inspetiside or repllent on clothing,as mosquito bite through thin clothing..

9) HIV virus is responsible for causing aids..it makes the body weak and unable to fight against infections...

10)Osmosis=The movement of water molecules through a selectively permeable membrane along the concentration gradient is called osmosis...

Diffusion=The movement of particles outside the selectively permeable membrane the region of higher concentrations to the region of lower concentrations is known as diffusion...

Answer 2

8)Take the right type of anti-malarial medicines for the country you are travelling to. The choice of anti-malarial prevention tablets will also need to take into account your medical history, age and other concurrent medications. You must take them daily or weekly, depending on the medication choice, prior to travel and upon return from the malaria area.Protect yourself from mosquito bites by sleeping under an insecticide-treated mosquito net.Wear socks, long pants, long-sleeve shirts and blouses.Spray DEET mosquito repellent onto your clothes and the exposed parts of your skin.Make sure the room doors and windows are closed properly and screened with gauze to prevent mosquitoes from getting in.

9)HIV virus

10)Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.

Diffusion is the net movement of anything from a region of higher concentration to a region of lower concentration.

hope it helps.....stay safe ND have a nice day