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3 years ago

Pls help...

Biology

1 answer:

ruslelena [56]3 years ago

8 0

Answer:

16.Difference between a Bar Magnet and a Solenoid

The bar magnet is a permanent magnet whereas a solenoid is an electromagnet ie, it acts like a magnet only when an electric current is passed through. ... The poles of the bar magnet are fixed whereas for a solenoid the poles can be altered.

17.When you press a doorbell button, you complete an electrical circuit that allows household electricity to flow through the doorbell's internal electromagnet. The magnetic field generated by the electromagnet is then used to power a mechanism that creates the doorbell sound. Doorbells are low-voltage devices.

Explanation:

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What is the main function of xylem tissue in the plant transport system?

mario62 [17]

The main function of xylem tissue in the plant transport system is to transport water.

Answer: C) or the third option.

8 0

3 years ago

True or False? Circle the correct answer for each statement. If a statement is false, explain why under the

Lorico [155]

Answer:

F,T,T,F

Explanation:

1)false-(its a covalent bond)

A water molecule is formed when two atoms of hydrogen bond covalently with an atom of oxygen.

2)True-(water is a polar molecule)

Water is a polar molecule because the positive end attracts particles of negative charge.

3)True

water dissociates to form hydrogen ions (H3O+) and hydroxide (OH-) ions

4)false

Lower pH number means stronger acid, higher pH number means stronger base.

4 0

3 years ago

Treatment of dividing cells with a low dose of the antifungal drug benomyl, which destabilizes microtubules, slows down correct

lilavasa [31]

Answer:

The answer is letter A.

Explanation:

A loss-of-function mutant in the gene encoding Mad2.

3 0

3 years ago

Heterosporous plants, such as pine trees, produce two different types of ____________

noname [10]

The answer is microspore and megaspore. hope that helped

7 0

3 years ago

Please help!!!! very confused pt 2

Schach [20]

Answer:

If the genotype of the parents are Iᵃi and Iᵇi, then four type of offspring will be produced.The genotype of the offspring are, IᵃIᵇ, Iᵃi,Iᵇi, and ii.

Explanation:

IᵃIᵇ = As the alleles are co-dominant in nature, so both type of alleles are expressed. The blood group will be AB. So, both A and B type of antigen will be found in plasma membrane of RBC.

Iᵃi= In this type of genotype only A type of antigen will be expressed in the membrane of RBC. The blood group will be A type.

Iᵇi= In this type of genotype only B type of antigen will be expressed in the membrane of RBC. The blood group will be B type.

ii= This is a recessive type of genotype. So, no antigen will be found on the membrane of the RBC. And the blood group will be O type.

The offspring's ratio will be 1:1:1:1.

4 0

3 years ago