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2 years ago

Natural selection results in change over time by acting on traits that are ___

Biology

2 answers:

katovenus [111]2 years ago

7 0

Answer:

heritable

Explanation:

Beacuse Every animal has a trait the will allow it to survive and become more like its ansestors, in the animal kingdom.

3241004551 [841]2 years ago

3 0

Answer:

passed on, inherited, passed on to offspring, most adapted to the environment or have the best adaptive traits or higher genetic fitness

Explanation:

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Codominance occurs when a recessive gene overpowers a dominant gene. there is an exact compromise between two genes. a dominant

AveGali [126]

The correct answer there is an exact compromise between two genes (alleles). <span>The codominance is a form of dominance when the alleles of a gene pair in a heterozygote are both fully expressed. As a result of this, offspring have a phenotype that is neither dominant nor recessive. Example of codominance is found in ABO blood types. When you have allele Ia and allele Ib the expressed blood type is AB.</span>

3 0

3 years ago

Imagine you are the nucleus of a plant or animal cell and have been asked to mentor an organelle that is new to the cell. Take y

Ivan

Hi,

I am Nucleus of the cell. I am the most important part of the cell and i have genetic material that is transferred to the offspring upon reproduction. I also supervise many important processes of cell like synthesis of proteins.

I will take you on the trip of our whole cell where you will be able to meet different organelles and know a little about their roles in cell. Let us meet them one by one:

1) Nucleolus: It is a darkish and roundish structure that resides inside me. Its role is in the synthesis of an important type of RNA called ribosomal RNA.

2) Nuclear membrane: This membrane surrounds me and is contains small pores for the movement of ribosomal RNA and proteins. Due to this surrounding DNA stays inside me and donot leaves me.

3) Golgi Complex: This is like a packaging and storing organelle of cell that processes and packs the proteins and exports them outsise or inside the cell. Their secretions include digestive glands, saliva, oils etc.

4) Rough Endoplasmic Reticulum: It consists of several long canals that form a series running throughout the cell and contains ribosomes attached with them. They are the organelles which transport proteins to the golgi complex for their packaging.

5) Smooth Endoplasmic Reticulum: It has an important role in the detoxification process converting toxic substances into less toxic forms. They are in structure similar to rough endoplasmic reticulum except that they donot have ribosomes attached to them.

6: Centrioles: They are important in the process of cell division and are present in animal cells only.

7:Mitochondria: This is called as power house of the cell because all the processes that convert food into energy take place in this part. You can see it has two membranes outer is smototh while inner forms foldings.

8: Ribosomes and Free Ribosomes- They are freely floating in the cell or attached with endoplasmic reticulum, They have role in protein synthesis.

9: Lysosomes: They have an important function because they remove worn out and old organelles by digesting them. Therefore, they contain good digestive enzymes.

Hope it helps!

8 0

2 years ago

Which gas is used by plants for photosynthesis and released by all living things during respiration?

Tju [1.3M]

During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose

5 0

2 years ago

Read 2 more answers

How does electricity impact the society for better or for worse?

sweet-ann [11.9K]

Answer:

Electricity impacts the society for both better and worse. Since humans use so much we are helping climate change, and helping cause droughts. But it is helpful because we can have light, save food for longer, cook, have fun, and stay warm or cold during the year

Explanation:

5 0

2 years ago

Number of chromosomes?

DerKrebs [107]

<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2><h2>KAROTYPE:</h2>

This is the picture of karyotype. Karyotype is a collection of a Individuals chromosome. Like pairs are separately represented from the unlike pairs, It is generally used to study the chromosomes and the abnormalities found in the number of chromosomes.

<h2>_____________________________________</h2><h2>CHROMOSOMAL NUMBER 18:</h2>

Every chromosomal pair seems fine, except the chromosomal pair number 18. Because as you ca see that it has 3 chromosomes instead of 2. This impairment in the chromosomal pair is called trisomy as it has 3 chromosomes.

<h2>_____________________________________</h2><h3>TRISOMY 18:</h3>

Trisomy 18 is also called Edwards syndrome. It is a chromosomal condition associated with abnormalities in more than one part of the body. Individuals with trisomy 18 often mature slowly than normal fetus before birth and they have lower weight at the time of birth as compared to the other children.

<h2>_____________________________________</h2><h2>Best Regards!</h2><h2>'Borz'</h2>

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2 years ago