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Nana76 [90]
2 years ago
12

Explain in 5-7 sentences.

Biology
1 answer:
Ann [662]2 years ago
8 0
It is important for everyone to have unique DNA for everyperson on the planet because an important property of DNA is that it can replicate, or make copies of itself. Each strand of DNA in the double helix can serve as a pattern for duplicating the sequence of bases. This is critical when cells divide because each new cell needs to have an exact copy of the DNA present in the old cell.
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What is the number of vibrations that occur in a given time interval?
ra1l [238]
You are asking the question wrong. The name of the number is frequency.
7 0
2 years ago
The physical feautre of the land surface whether it is sloping,rolling,flat or level is called
timurjin [86]
A landform is a feature on the Earth's surface that is part of the terrain. Mountains, hills, plateaus, and plains are the four major types of landforms. Minor landforms include buttes, canyons, valleys, and basins. Tectonic plate movement under the Earth can create landforms by pushing up mountains and hills.

A plain is nothing but a low-lying relatively flat land surface with very gentle slope and minimum local relief. About 55% of the earth's land surface is occupied by plains. Most of the plain have been formed by deposition of sediments brought down by rivers.

Plateaus are elevated flatlands. In other words, it is flat land which is standing high above the surrounding area. Furthermore, they may have one or more sides with steep slopes. Also, depending upon the plateau, their height varies from a few hundred meters to several thousand meters.
5 0
3 years ago
Name the levels of organization from smallest to largest 1(Smallest) 2 3 4. 5(Largest)
Vlad [161]

Answer:

cell, tissues, organ,organ system and organism

I think the answer is D, since the heart is not under homeostasis

6 0
3 years ago
Read 2 more answers
Which of the following changes in aging skin contribute to increased susceptibility to infections? Select all that apply. decrea
Luba_88 [7]

Answer:

The answer is langerhans cells.

Explanation:

The first option is false. Melanocytes are cells that are responsible for the production of melanin throughout the skin of the body which affects the skin color.

The second option is also false. The Sebaceous glands are located at the end of the hairs on the skin and are responsible for producing oil throughout.

The third option is correct because langerhans cells are responsible for producing antigen throughout the skin and they are a part of the skin's immune system.

I hope this answer helps.

6 0
3 years ago
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The quintessential (most basic/ most important) moment of fertilization of the egg by the sperm cell occurs when
DedPeter [7]

The answer is pronuclei. A pronuclei is the state of the nucleus of either the sperm or the ovum after the sperm has entered the ovum but the two nuclei have not yet fused. When the sperm enters the ovum, the membrane of the sperm pronuclei dissolves hence leaving no barrier for the two genetic materials to combine.  

3 0
3 years ago
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