within a forest ecosystem, there is a large amount of diversity among members of a warbler species. of the following stages of meiosis illustrated for a typical cell, which contributes most to diversity among the warblers?

Answers

Answer 1

Crossing over occurs between homologous chromosomes, and is closely involved in genetic variation. The stage that most contributes to diversity is stage C, where you can see chromosomes after crossing-over.

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There are different mechanisms involved in producing genetic variation among descendants. These are,

Crossing-over between homologous chromosomes (prophase 1), Random lining of homologous chromosomes (metaphase 1),Random fertilization  

The Crossing-over events occur between two homologous chromosomes in the equatorial plane and make the daughter cells genetically different from the original one.

The Chiasma is the position where two homologous chromatids interchange genetic information, giving a place for new genetic material or information to be provided to descendants.

After crossing over, homologous chromosomes get separated again.  

In the attached imaged there are four different stages of meiosis.

Stage C is the one that contributes the most to diversity.

We can see that crossing over has already occurred between homologous chromosomes, and they have already interchanged segments.

In the image you will see the difference between chromosomes that has gone through the crossing over mechanism, and chromosomes that has not. The difference in color represents segments interchange and variation.

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Within A Forest Ecosystem, There Is A Large Amount Of Diversity Among Members Of A Warbler Species. Of

Related Questions

PLEASE label this image pleasee

Answers

Answer:

dk

Explanation:

because it's dk u need to add dekk and yes it's uesful

The fern goes through alternation of generations in which there is a Diploid stage and a haploid stage. In the diploid stage under the fern’s leaves there is clusters of sporangium called sorus in which meiosis occurs from the diploids sporocyte creating haploid spores. The haploid spores duplicate through mitosis to turn into a gametophyte. The gametophyte has a upper part which holds the eggs called archegonium and in the lower part where sperm is produced called antheridium.After fertilization occurs the egg duplicates and turns into a zygote and eventually back to a diploid sporophyte firn.

What are the 3 parts of the digestive system? What does each one do?

Answers

Answer:

The Esophagus, Gastric Chamber and Intestines

Explanation:

esophagus pushes chewed food to stomach by peristalsis. The gastric chamber(stomach) works on digesting the food. The digestion completes in the small intestine and goes through the large intestine which absorbs water and minerals. Then it passes through the Anus and get pooped out.

1. Describe the flow of energy from the sun to a producer, like grass, and then to a consumer, like a rabbit. 100 points!!! Not a scam!

Answers

Answer: The sun produces energy to the solar panel the sollaer panel produces energy to my house

Explanation:

The Sun then provides energy to the grass via the photosynthesis process. The rabbit consumes the grass and absorbs its energy.

What is flow of energy?

The flow of energy through living things within an ecosystem is referred to as energy flow.

All living organisms can be classified as producers and consumers, and those producers and consumers can be classified further as a food chain. Each level of the food chain is referred to as a trophic level.

The Sun then provides energy to the grass through photosynthesis. The rabbit consumes and absorbs the grass's energy.

Finally, the snake consumes the rabbit and absorbs its energy. Energy travels from the Sun and is consumed by each consumer along the chain.

Thus, this way, energy flows in an ecosystem.

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help please! (earth science/heat)

Answers

Answer:

4.

Explanation:

melting (changing from a solid to a liquid)

freezing (changing from a liquid to a solid)

evaporation (changing from a liquid to a gas)

and condensation (changing from a gas to a liquid).

Complete the sentence. City leaders can protect environmental quality by choosing __________ like shoreline vegetation to protect their coastal communities.

sea walls
extra sand
carbon reduction
natural solutions

Answers

Answer:

natural solutions

Explanation:

Shoreline vegetation is a natural filter that helps the environment.

A cross between two mice with long tails and brown fur produced the four types of offspring as listed.
• Long-tailed with brown fur
• Long-tailed with white fur
• Short-tailed with brown fur
• Short-tailed with white fur
Which genetic mechanism best explains the results of this cross?
A independent assortment
B. Crossing-over
C. gene linkage
D. dependent assortment

Answers

Answer:

B

Explanation:

The genetic mechanism that best explains the results of this cross is independent assortment. The correct option is A.

What is independent assortment?

According to Mendel's law of independent assortment, alleles from two (or more) different genes are sorted into gametes independently of one another.

In other words, the allele received by a gamete for one gene has no effect on the allele received for another gene.

Independent assortment occurs when alleles from at least two genes are assorted into gametes independently.

As a result, the allele inherited by one gamete has no effect on the allele inherited by the other gametes. Mendel observed that the transmission of various genes appeared to be separate events.

Independent assortment is the genetic mechanism that best explains the results of this cross.

Thus, the correct option is A.

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Please help if possible !!

Answers

Its B bbbbbbbbbbbbbbbbbbbbbbbbbbb

Tidal volume is air ________. Group of answer choices forcibly expelled after normal expiration inhaled after normal inspiration exchanged during normal breathing remaining in the lungs after forced expiration

Answers

Answer:

Tidal volume is air *around one half liter*. Group of answer choices forcibly expelled after normal expiration inhaled after normal inspiration exchanged during normal breathing remaining in the lungs after forced expiration

Explanation:

Have a great day!

What is not a type of arrythmia?

ventricular flutter
atrial flutter
atrial fibrillation
ventricular tachycardia

Answers

Given what we know about anatomy, we can confirm that atrial flutter is the option listed that may not be considered an arrhythmia.

What is an arrhythmia?An arrhythmia is classified as an irregular beating of the heart. What this means is that the heart will beat at rhythms different from the normal. A normal heartbeat can increase or decrease in speed, but as long as the beating follows a regular rhythm it is not considered an arrhythmiaThe atrial flutter can cause the heart to beat much faster than normal but maintains a regularity.

Therefore, since the atrial flutter causes the heart to beat very fast, but maintains a regularity to it, we can confirm that this is not a type of arrhythmia given that an arrhythmia is classified as an irregular beating of the heart.

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what does it mean for a bacteria or protist to be photosynthetic?

Answers

Answer:

Because we know that photosynthesis is a process that plants use, we can define photosynthetic protists as 'plant-like' protists that get their nutrients by converting sunlight into energy using photosynthesis.

Explanation:

Photosynthetic organisms, also known as photoautotrophs, are organisms that are capable of photosynthesis. Some of these organisms include higher plants, some protists , and bacteria because we know that photosynthesis is a process that plants use, we can define photosynthetic protists as 'plant-like' protists that get their nutrients by converting sunlight into energy using photosynthesis.Protists can be photosynthetic or heterotrophs (organisms that seek outside sources of food in the form of organic material). They also contain chlorophyll, a pigment which absorbs light energy for photosynthesis. Photosynthetic protists are considered plant-like protists.

Learn more:

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what is the main function of the cell wall in a plant cell

Answers

Answer: provides tensile strength and protection against mechanical and osmotic stress

Explanation:

The main function is so that it protects the cell and strengthens it

What drives subduction at a converging plate boundary?

Answers

Answer:

The geologic features related to convergent boundaries vary depending on crust types. Plate tectonics is driven by convection cells in the mantle. ... Subduction begins when this dense crust converges with less dense crust. The force of gravity helps drive the subducting slab into the mantle

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