BIOLOGY HIGH SCHOOL

DNA in the nucleus of the cell is thin and threadlike and called _

Answers

Answer 1
Answer: I think the term you're looking for is chromatin.
Hope this helped you.
Answer 2
Answer: I believe it is chromatin. But you better make sure an ask your teacher. Hope this helped yall.

Related Questions

The place where photosynthesis occurs is the:A. mitochondrial membranes.B. thylakoid membrane.c. plasma membrane.D. ribosomes.
Which term best describes the makeup of a biome?A large region of interconnected populations.A large region of interconnected ecosystems.A large region of interconnected communities.A large region of interconnected biospheres.
When listing the levels of organization in organisms from smallest to most complex, which level is just below organs in complexity?
A group of habitats makes up a _____. community biome population
Which organism is an example of a club fungus?

What are two different forms of a single gene called? A. traits

B. alleles

C. factors

D. chromosomes

Answers

Alleles are two different forms of a single gene.

The correct answer is Alleles

6 Several goldfish were kept in a small aquarium forseveral years. The fish grew to be approximately6 centimeters long in the first year, and after that,growth in length stopped. These fish were latertransferred to a large pond. In the pond, thegoldfish grew much larger, reaching lengths ofaround 25 centimeters. Which statement providesthe best explanation for the increased growth ofthe fish in the pond?

Answers

The statement that provides the best explanation for the increased growth of the in the pond is ‘The fish grew to be approximately 6 centimeters long in the first year, and after that, growth in length stopped.’

Beetle pollinators of a particular plant are attracted to its flowers' bright orange color. The beetles not only pollinate the flowers but mate while inside of the flowers. A mutant version of the plant with red flowers becomes more common with the passage of time. A particular variant of the beetle prefers the red flowers to the orange flowers. Over time, these two beetle variants diverge from each other to such an extent that interbreeding is no longer possible. What kind of speciation has occurred in this example, and what has driven it? A. Allopatric speciation, ecological isolation.
B. Sympatric speciation, habitat differentiation.
C. Allopatric speciation, behavioral isolation.
D. Sympatric speciation, sexual selection.
E. Sympatric speciation, allopolyploidy.

Answers

Answer:

B. Sympatric speciation, habitat differentiation.

Explanation:

The right answer to our question is B, Sympatric speciation, habitat differentiation.

Edward Bagnall Poulton derived the term sympatric speciation in 1904. It is a mode of speciation, which entails new species emerging from an ancestral species that is still alive and extant. Both the emerging and ancestral species will exist in the same zone.

This speciation is found more in plants. There are different types of these speciations. Habitat differentiation is seen within sympatric speciation. It is found when mutations that exist in the same zone can make use of varying conditions. Allopatric speciation and parapatric speciation are the other types of speciation.

Final answer:

In the given scenario, Sympatric speciation driven by habitat differentiation has occurred. The different 'habitats' are represented by the flower color preferences of the beetle variants, leading them to diverge to the point of becoming distinct species.

Explanation:

The type of speciation that has occurred in the provided scenario is Sympatric speciation, driven by habitat differentiation. In this context, sympatric speciation refers to the process where new species evolve from a single ancestral species while inhabiting the same geographic region. In this case, the 'geographic region' is the color of the flowers. The red and orange flowers represent different 'habitats' for the beetles.

In terms of what has driven this speciation, it is habitat differentiation. This is because even though the beetles are occupying the same general physical area, their 'habitat' in terms of the color of the flowers they prefer has caused a divergence in their mating and, hence, their gene pools. Over time, this leads to the two beetle variants becoming so different that interbreeding is no longer possible, effectively rendering them distinct species.

Learn more about Sympatric speciation here:

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What is the function of the promoter in a DNA molecule? It provides RNA polymerase with a place to terminate transcription.
It provides RNA polymerase with a place to begin transcription.
It provides DNA polymerase with a place to terminate transcription.
It provides DNA polymerase with a place to begin translation.

Answers

The right answer for the question that is being asked and shown above is that: "It provides DNA polymerase with a place to terminate transcription." the function of the promoter in a DNA molecule is that It provides DNA polymerase with a place to terminate transcription. 

A seed only germinates when environmental conditions are good. True or False

Answers

True. If (environmental) conditions were bad, the seed would not be able to survive :)

A skull from the genus Homo that dates from approximately 750,000 years ago is discovered. Where is the foramen magnum be located?A. at the back of the skull
B. at the front of the skull
C. at the bottom of the skull
D. at the top of the skull

Answers

The correct answer would be option C. A skull from the genus Homo that dates from approximately 750,000 years ago has its foramen magnum at the bottom of the skull. The foramen magnum is the opening at the base of the skull where the spinal cord joins the brain. The foramen magnum of a Homo is in a more forward position indicating that it had a more erect posture. 
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