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Rashid [163]
3 years ago
6

Which is NOT an energy source obtained from the ocean?

Biology
2 answers:
Dahasolnce [82]3 years ago
8 0
C. coal
It’s the right answer
Korvikt [17]3 years ago
7 0

A. Hope this helps.                          

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The diploid number of chromosomes in the mustard plant, Arabidopsis thaliana, is 10. Knowing this, answer the following question
lukranit [14]

Answer:

10 chromosomes/sister chromatids

Explanation:

Prophase is the first stage of cell division (mitosis). Prior to the cell entering the actual division stage, it undergoes a phase where it prepares its content and most importantly undergo the duplication of its genetic material (DNA). This DNA are found as chromosomes. It undergoes replication of its DNA in the S-phase of interphase stage.

Since Arabidopsis thaliana has 10 chromosomes, and each chromosome holds one DNA molecule, 10 molecules of DNA will be present in the mustard plant's genome. These 10 molecules of DNA will be replicated on another copy of chromosome which is identical to the template. This chromosomes are called SISTER chromatids i.e. replicated chromosome. Each sister chromatids are held together at the centromere and are considered one individual chromosome until they separate during anaphase stage.

Hence, at the Prophase stage, before separation, each sister chromatid (replicated chromosome) is considered as one chromosome. Thus, in the mustard plant with 10 chromosomes, it will possess 10 sister chromatids or chromosomes at the Prophase stage.

N.B: When sister chromatids separate during anaphase stage, they will be regarded as individual chromosomes.

6 0
3 years ago
What is the cause of dead zones
timurjin [86]

Answer:

Dead zones are hypoxic (low-oxygen) areas in the world's oceans and large lakes, caused by "excessive nutrient pollution from human activities coupled with other factors that deplete the oxygen required to support most marine life in bottom and near-bottom water. (NOAA)".

Explanation:

5 0
3 years ago
Read 2 more answers
In which types of cells will mitosis occur
jasenka [17]

Answer:

D

Explanation:

4 0
2 years ago
Read 2 more answers
What did Darwin discover about plants from his phototropism experiments?
mel-nik [20]

Answer:

https://www.biology-pages.info/T/Tropisms.html

Explanation:

This link holds all the information you need :D

7 0
3 years ago
What are the male and female parts of a flower?
Dmitry [639]

Answer:

the male part of a flower is called the stamen, it consists of a long slender stalk, the filament, with a two-lobed anther at the tip.

the female part of a flower is called the pistil, it consists of the stigma, the style, the overy and the ovule.

5 0
3 years ago
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