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Thepotemich [5.8K]
3 years ago
7

How do ocean floor rocks and sediments provide evidence of seafloor spreading

Biology
1 answer:
viva [34]3 years ago
5 0

Answer:First, samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached, and the sediment cover is thinner near the ridge.

Explanation:

The features of the seafloor and the patterns of magnetic polarity symmetrically about the mid-ocean ridges were the pieces that Hess needed. ... As oceanic crust forms and spreads, moving away from the ridge crest, it pushes the continent away from the ridge axis.

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Short segments of newly synthesized DNA are joined into a continuous strand by _____.Short segments of newly synthesized DNA are
Sloan [31]

Answer:

a. Ligase

b. Ligase ( it's repeated)

Explanation:

DNA synthesis begins, therefore, by synthesizing a short segment of RNA called a primer, which primer is synthesized by an enzyme called Primasa. Primasa is an RNA polymerase that uses DNA as a template. All fragments of Okazaki begin with a Primer. Subsequently, the DNA polymerase III Holoenzyme performs the synthesis of the corresponding DNA fragment until it reaches the next primer. At that time, DNA polymerase Ia replaces the DNA polymerase Holoenzyme III. The DNA polymerase I is responsible for removing the RNA primer through its 5'P-3'OH exonueotic activity and at the same time fills the hole by synthesizing DNA.

Finally, the two Okazaki fragments have to be joined, it is necessary to link the 3'OH end of a fragment with the 5'P of the next fragment. This work of sealing and joining the successive fragments is done by Ligase.

4 0
4 years ago
Failure in a particular structure of the heart tends to cause a backup of blood in the lungs, known as pulmonary congestive hear
xeze [42]

Answer:

Left ventricle.

Explanation:

Human heart is divided into four chambers - two auricles and two ventricles. Heart acts as the pumping organ and carries both oxygenated and deoxygenated blood in the right and left ventricles.

The failure of functioning of any chamber of heart may cause a particular disease in the individuals. The pulmonary congestive heart failure occurs due to the failure of the left ventricles of the heart. The left ventricle carries blood from heart to the body tissues, its failure leads to the backup of blood in the lungs.

Thus, the answer is left ventricle.

5 0
3 years ago
Most of the microorganisms in nature have been successfully cultured in the laboratory
RideAnS [48]
Certainly most of the microorganisms in nature have been successfully cultured in the laboratory. In fact there are several ways to do it using different kind of mediums that help the development of microorganisms. Also, there are various type of medium for developing various kind of cells.
5 0
3 years ago
A man and his wife went in for fertility testing after trying to have a baby for over a year. After examining the man’s sperm un
kolezko [41]

Answer:

Ribosomes

Explanation:

This  is the organelle for regulating protein synthesis in cells.It is made up of the small and big submits. These sub units collectively ensure the process of  translation of protein my ensuing the correct  synchronisation of condoms not he smaller nit of ribosomes with the anti codons on the tRNA with the  to give a designated protein.

Therefore if there is mutation -deletion or substitution  in the codons and anti codons,.this may affect bring frame shift which affects the protein translated leading to  wrong protein formation.

Mitochondria is the organelle that gives the sperm  power to swim.Therefore the protein that  codes for mitochondrial is faulty and this affects the the tail from swimming properly.since ribosomes is the source of protein this is the correct answer

6 0
3 years ago
Which of the following are the two primary gasses found in the Earth's atmosphere?
djverab [1.8K]
The answer is C took the test
8 0
3 years ago
Read 2 more answers
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