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Oksi-84 [34.3K]
3 years ago
9

Which of the following lists the parts of a reflex are in the corret order?

Biology
1 answer:
Murrr4er [49]3 years ago
6 0

Answer:

A) receptor, sensory neuron, interneuron, motor neuron, effector

Explanation:

In a reflex arc, the receptors present in the skin receive stimulus and generate afferent impulse. The sensory neuron transmits the impulse to the interneuron. Interneuron is present in the spinal cord and activates it. The interneuron then sends back the impulse through the motor neurons to effectors whcih are present in the muscles for the response.

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What is the difference between DNA, chromatin, and Chromosomes?
Serhud [2]
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A chromosome is made up of two chromatids which are joined by the centromere. The chromatids separate from each other during mitosis to form two new chromosomes. The DNA making up a chromosome is dispersed as chromatin.

Under a microscope, chromatids look like little dots and chromosomes are lines.
4 0
3 years ago
In garden peas the allele for tall plants () is dominant over the allele for dwarf plants() A true breeding tall plant is bred w
marta [7]

Answer: This is called Monohybrid Experiment

Explanation: Monohybrid Cross

P Generation TT     *   tt

  Tall plants     Dwarf plants

F1 Generation  

T T

t Tt Tt

t Tt Tt

In F1 generation;

There are 100% Tt Genotype and 100% Tall plant Phenotype

F2 Generation

F1   *   F1

( Tt   *   Tt )

T t

T TT Tt

t Tt tt

In F2 Generation;

Genotype

There are 25% TT (homozygous dominant, tall plants).

50% Tt (heterozygous tall plants), and

25% tt (homozygous recessive dwarf plants).

This is how dwarf characteristics reappear in the second generation.

The Phenotype of F2 generation is 3:1  (Tall : Dwarf)

I have attached a document to this answer to facilitate effective understanding if there is anormalities in arrangement the Punnet Square.

Download docx
5 0
3 years ago
Is Cthalamus barnacles are best adapted to the rocky intertidal zone ? <br> O True<br> O False
Deffense [45]
The answer is True.............................
7 0
3 years ago
True or False. When reactions are too slow to meet the needs of the cell, enzymes are missing from cells and cellular reactions.
EleoNora [17]

Answer:

True

Explanation:

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They  act by lowering the activation energy  in the organic chemical reaction therefore increase the rate at which chemical reactions progress.

Hence when  the reactions are too slow,activation energy are high,because enzymes are not available to catalyze the reaction fixing the active sites with the the substrates.

4 0
3 years ago
Describe four ways in which natural process add harmful particles to the air
Elan Coil [88]
Volcanic<span>eruptions, forest fires, pollen which can cause allergies, and ozone which is a pollutant made after lightning interacts with oxygen which can cause iritate the eyes, throat and lungs. 
hope I helped </span>
7 0
3 years ago
Read 2 more answers
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