Most galaxies are moving towards us
Answer: B. Chromosomes
Explanation: Chromosomes become visible, the nucleolus disappears, the mitotic spindle forms, and the nuclear envelope disappears. Chromosomes become more coiled and can be viewed under a light microscope.
Answer:
The difference lies in their size, wind velocity, rate of travel, and duration.
Explanation:
<h3 /><h3>Tornadoes</h3>
- reaches rotating speeds up to 300 miles per hour.
- travels between 25 and 40 miles per hour.
- lasts for a few minutes but can exist for hours.
<h3>Typhoons</h3>
- winds that vary from 75 to 200 miles per hour.
- moves between 10 and 20 miles per hour.
- has a diameter up to 600 miles.
- exists from days up to a week
Answer:
<u><em>DNA is made of repeating units called nucleotides.</em></u>
Explanation:
DNA can be described as a double helix molecule made up of long polymer chains of nucleotides. The nucleotides which are present in a DNA are:
Adenine (A)
Guanine (G)
Cytosine (C)
Thymine (T)
The hydrogen bonds which occur in the pairing of nucleotides makes the double helix structure of DNA.
Adenine forms hydrogen bonds with Thymine.
Guanine forms hydrogen bonds with Cytosine.
The backbone of the DNA is made up of sugars and phosphates
