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3 years ago

Can someone help me to fill in the blanks?

Biology

1 answer:

Goryan [66]3 years ago

7 0

Some microbes enter through your nose and mouth, e.g. the microbes which cause tuberculosis and influenza.

Your skin is another of the body's defences. It acts as a barrier preventing the entry of microbes.

Some diseases e.g. tetanus, enter through puncture wounds caused by nails, bites, burns, etc.

Some microbes enter the gut when you eat infected food. Name a type of food poisoning caused by a bacterium. Salmonella

Acid is produced by the stomach - it kills some bacteria.

Give an example of a disease which can be passed from a mother to her foetus across the placenta. AIDS

You might be interested in

Was the scientist who developed the inactivated polio vaccine.

Naddika [18.5K]

Answer:

Jonas Salk

Explanation:

The vaccine that is used for the prevention of polio caused due to the infection caused by the poliovirus is known as polio vaccines.
The first successful polio vaccine was developed by Jonas Salk in the year 1952 and the success of the field trials was announced in the year 1955.
This vaccine became famous as the Salk polio vaccine which is 60-70% effective against PV1 and 90% against PV2 and PV3.
This vaccine was an inactivated vaccine.

4 0

3 years ago

Who devised a technique for determining the blood group of a dried bloodstain, which he applied to criminal investigations?.

Dominik [7]

Landsteiner Bertillon devised a technique for determining the blood group of a dried bloodstain, which he applied to criminal investigations.

<h3>What about blood group?</h3>

According to the presence or absence of antibodies and hereditary antigenic compounds on the surface of red blood cells, blood is classified according to its type.
Depending on the blood group system, these antigens could be proteins, carbohydrates, glycoproteins, or glycolipids.
The genes that a person got from their parents determine what blood type they have.
There are numerous systems for classifying blood types, but ABO is the most popular one.
The ABO group is divided into four main categories: A, B, O, and AB.
There are eight more blood types within these groupings.
Each of the eight blood types has a particular ability to save lives.
The majority of people (37% of the population) have the blood type O+, which is the most prevalent. This indicates that there is a greater need for this blood type for blood transfusions.

Learn more about blood group here:

brainly.com/question/15289194

#SPJ4

6 0

1 year ago

A location has the conditions stated below. warm ocean water winds to carry air upwards Which of these weather conditions is mos

Galina-37 [17]

D hurricanes makes the most sense because lightning isn't and blizzards have nothing to do with ocean waters and tornadoes only occur inland.

7 0

3 years ago

Read 2 more answers

PLEASE HELP:

arlik [135]

Answer:

Cells can generate from nonliving matter,

Explanation:

He concluded that only living cells can produce cells/ only life can produce life. so if the fact that cells can generate from matter that is not living, it would disprove his theory because his theory was that only living things can produce living things.

6 0

3 years ago

You are served dessert at a restaurant. You want to know what % of the calories in the dessert are from fat. The menu states tha

jasenka [17]

Answer:

39.82 %

Explanation:

Proteins and carbohydrates provide 4 calories per gram. On the other hand, fats provide 9 calories.

We can first calculate the calories of protein + carbohydrates:

(30g + 4g) x 4 = 136 calories

And we must calculate the calories provided by fat:

10g x 9 = 90 calories

Now to get the percentage we must see how many calories the dessert has in total:

136 + 90 = 226 cal

This represents 100% of calories. And now we need to find out how much 90 calories are from the total.

226 cal -----> 100%

90 cal ------> X

(90 x 100) / 226 = 39.82 %

4 0

4 years ago