BIOLOGY MIDDLE SCHOOL

A dormant volcano is erupting or may erupt in the near future.Please select the best answer from the choices provided

T
F

Answers

Answer 1
Answer: False Dormant means nothing has happend in a long time

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A scientist makes an image of all of a person's chromosomes. What technique is she using?

Answers

Answer:

The correct answer is karyotype.

Explanation:

A karyotype is an image that helps in analysis to a person's chromosome. It is a picture of all chromosomes of an individual. Scientists take this picture or image sample of chromosomes of the individual is isolated, stained or examined under the microscope. This image helps in analysis and study of the chromosome.

Thus, the correct answer is karyotype.

She is using a karyotype

Which chromosomal defect is caused when part of a chromosome breaks off and reattaches backward on the same chromosome?

Answers

Answer:

Translocation

Explanation:

Translocation is a chromosomal defect in which part of a chromosome breaks off and reattaches backward on the same chromosome.

Translocation can happen due to many reasons like:

A) Some of the changes that arise around the time of conception  or production of sperm or egg.

B) The inheritance of altered chromosome from father or mother.

Translocations can be divided into two forms:

  • Reciprocal translocation
  • Robertsonian translocation.

In reciprocal translocations,  fragments of two chromosomes break off from two different places, break and swap each other's segments. While in  Robertsonian translocation one chromosome attached with other.

Hope it help!

Answer:

Translocation :)

Explanation:

B

Which kind of organism is found at the end of a food chain?

Answers

Which kind of organism is found at the end of a food chain?

A Decomposer is your answer
Herbivores are found at the end of a food chain

Slow cooling of hot magma leads to the formation of what crystals

Answers

Slow cooling of hot magma turn into big crystals and fast cooling hot magma crystals are small. It takes time too form big crystals
Ice I'm pretty 80% sure that it is

What kind of plants are likely to be pioneers species?

Answers

Because pioneer species are the first to return after a disturbance, they are the first stage of succession, and their presence increases the diversity in a region. They are usually a hardy plant, algae or moss that can withstand a hostile environment.

What process is responsible for producing 2n zygote

Answers

Fertilization is the process in which two haploid gametes fuse to create one diploid cell. In this process, male sperm fuses with female egg which creates a zygote.

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