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2 years ago

Explain how different TYPES OF ORGANISMS defend themselves against microorganisms. (6 marks)

Biology

2 answers:

Artist 52 [7]2 years ago

8 0

Answer:

Many plants have impenetrable barriers, such as bark and waxy cuticles, or adaptations, such as thorns and spines, to protect them from pathogens. ... Plants produce antimicrobial chemicals, antimicrobial proteins, and antimicrobial enzymes that are able to fight the pathogens.

Explanation:

mariarad [96]2 years ago

7 0

Pathogens are microorganisms - such as bacteria and viruses - that cause disease. Bacteria release toxins and viruses damage our cells. White blood cells can ingest and destroy pathogens. They can produce antibodies to destroy pathogens, and antitoxins to neutralize toxins.

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Oompah’s with type O blood receive a tax break. ophine oompah has type a blood, but he wants a wife that will give him children

vova2212 [387]

Answer:

He should request type O on his dating survey.

Opine's blood type must be AO to have a higher probability of producing O offsprings.

Explanation:

O blood type is recessive so, when it is paired with another blood type like B or A, these would be dominant, giving B and A blood, respectively.

O blood type results are possible thanks to OO genotypes.

If the man's blood type is A, to have a higher chance of producing OO offsprings, his blood should be AO. The other possibility is that he has AA blood, which will result in a low probability of OO offsprings.

As regards the mother, her blood type should be OO.

We can see this more clearly in Punnet Square.

║ A ║O

O║AO║OO

There is a 50% of probability of having O offsprings with AO and OO.

║ A ║A

O║AO║AO

O║AO║AO

With AA and OO, the probability is 0%

║ A ║O

A║AA║AO

O║AO║OO

With both parents having AO, blood the probability of having a OO offspring is 25%.

In conclusion, the higher chances of producing a OO offspring is if the parents are AO and OO.

3 0

2 years ago

Someone plzzzz plzz plz help me I’ll cash app 100$ to whoever gets it right ! Plz

liubo4ka [24]

Answer:

Don't cashapp me but im guessing BB just wait for other people to answer bc im not a 100% sure

Explanation:

4 0

2 years ago

Read 2 more answers

The prolonged electrical depolarization of cardiac muscle cells that occurs during contraction is due primarily to the persisten

luda_lava [24]

Answer:

The prolonged electrical depolarization of cardiac muscle cells -that occurs during contraction- is due primarily to the persistent influx of calcium ion

Explanation:

The action potential of the heart muscle is longer with respect to skeletal muscle (around 300 milliseconds), and this is due to the activity of calcium (Ca⁺⁺ ) in the intracellular compartment.

The initial depolarization of cardiac muscle fiber depends on the entry of sodium (Na⁺) into the cell. However, for the action potential to occur and be maintained, Ca⁺⁺ must increase its cytoplasmic levels, which depends on:

The increase in intracellular sodium induces the release of Ca⁺⁺ from the sarcoplasmic reticulum.
Calcium entry from the extracellular space through the voltage dependent Ca⁺⁺ channels.
The entry of extracellular Ca⁺⁺ causes the release of more Ca⁺⁺ ions by the sarcoplasmic reticulum, further increasing its intracellular concentration.

This is how the ion that guarantees the duration of the action potential of the cardiac muscle cell is the Ca⁺⁺.

Learn more:

Calcium, sodium and cardiac muscle cells brainly.com/question/4473795

4 0

3 years ago

+ Create

nekit [7.7K]

Answer:

True

Explanation:

Ice pellets are rain drops that have frozen before they hit the ground.

(They freeze while they're still in the air)

7 0

3 years ago

I need help please!!

Sliva [168]

Answer:

Prokaryotes and Eukaryotes are two types of cells with similarities and differences. Eukaryotes are plant cells and animal cells. They are mostly found in multi-cellular organisms. Prokaryotes are usually single-celled organisms and have a tail. Those are the examples that I remember, but there are way more similarities and differences. I hope this helped!!

3 0

2 years ago