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dimulka [17.4K]
4 years ago
8

What is the main ingredient in magnets? *

Biology
2 answers:
Kruka [31]4 years ago
8 0

Answer:

iron

Explanation:

The metal called ferromagnetic metals that goes along with nickel and iron

Assoli18 [71]4 years ago
4 0

Answer:

Magensium

Explanation:

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The use of hypovirulence to manage chestnut blight in Europe is an example of
WARRIOR [948]

Answer:

option c. viroid control

Explanation:

The chestnut tree in Europe is infected by a fungus called <em>Cryphonectria parasitica </em>that<em> </em>causes a disease called chestnut blight. The disease is controlled by a biological control method called hypovirulence.

The hypovirulence is a virus that attacks the fungal pathogen (<em>Cryphonectria parasitica </em><em>)</em> of chestnut tree. This fungal virus decreases the ability of fungal pathogen to cause chestnut blight disease. This technique prevents the chestnut plant after huge destruction of it in Europe.

The pathogen that have virus is introduced naturally over the plant. This reduces the infection and allows the natural growth of trees. Thus, option C is correct.

3 0
3 years ago
What is the missing word in this sentence? Millimetres of _____ are the units used to measure blood pressure.
ycow [4]

Answer:

mmHg

Explanation:

8 0
3 years ago
Lactase and carbon anhydrase are examples of what type of substance
Luden [163]

they are enzymes. i hope this helps

4 0
4 years ago
Read 2 more answers
The larvae of potato beetles cover themselves in their own feces to avoid being consumed by predators. What system produces fece
Genrish500 [490]

Answer:

Explanation below

Explanation:

Hemisphaerota cyanea, also known as the palmetto tortoise beetle, is a type of leaf beetle that cover themselves with their own feces, just to persuade most predators to pass them by. This form of outrageous defense, developed by the crafty beetle, was discovered by biologists at the Cornel university.  

The feces comes out of the hindgut of the beetle, fashioned like golden strands, which can be used to protect the vulnerable body of the beetle.  

4 0
3 years ago
The color of a person’s eyes is determined by a single pair of genes. If they are both blue-eyed genes, then the person will hav
vaieri [72.5K]

Answer:

A) 50%

B) 25%

C) Same 25%

Explanation:

a) Smith parents should be heterozygous to the eye color gene, this means, they each should carry a copy of the “brown eye” gene (that we will call B), and one of the “blue eyed” one (that we will call b). Since the blue eye is a recessive trait, you can assume that they both inherited b genes to the daughter. If we draw a Punnet square (Bb vs Bb), we will see the possibilities of Smith having a copy of the blue eye gene (Bb), and it is 50%.

b) Again, with a Punnet square (Bb vs bb) we see that the possibility of having a blue eyed baby is 50% IF Smith carries the copy of the b gene. But since that possibility is established to be 50%, therefore the possibility of the baby to have blue eyes is reduced by half to 25%

c) The probability is the same, it does not have an additive effect, so there is no effect on the number of children

7 0
4 years ago
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