Question

subject = science

1. where is saliva produced ?

2. define respiration .

3. name the flap that shuts off the windpipe when you swallow food .

4. list down the main organs of the nervous system .

5. name the process of fusion of an egg with the sperm .

Answer happily
spammers stay away

~be brainlics​

Answer 1

Answer:

1. in our mouth

2.a process by which living organisms produce food.

Respiration usually needs oxygen

Answer 2

Questions:

1. Where is saliva produced ?

2. Define respiration.

3. Name the flap that shuts off the windpipe when you swallow food.

4. List down the main organs of the nervous system.

5. Name the process of fusion of an egg with the sperm.

Answers:

1. Saliva is produced in the 3 pairs of glands and it is produced in oral cavity too.

Salivary glands also contribute 90% in saliva secretions and 10% contribute in minor salivary glands. In easy words , saliva is a clear liquid made by serval glands in your mouth. saliva is a important part of our body. Saliva also contains important substances so that your body need to digest food easily and it also helps our teeth to be strong.

2. Respiration is a process of inhaling Oxygen from the outside environment , and do the process of transport of carbon-diaoxide in the opposite direction.

There are 3 types of respiration

1. External Respirtation

• Inspiration/Inhalation.

2. Internal respiration.

3. Cellular respiration.

Note: The summarized of cellular respiration is in the attachment.

3. Epiglottis

Whenever , we swallow a flap called Epiglottis it moves to the blocks of entrance of food particles in to your lyrax and lungs.

4. The important and main organs of nervous system are The brain , spinal cord , sensory organs , and all of the nerves that connect these organs with the rest of the body.

5. Fertilization, is the process of fusion of an egg with the sperm.