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marissa [1.9K]
3 years ago
13

An element is made of many different types of atoms all together. True False

Biology
2 answers:
worty [1.4K]3 years ago
3 0
It is definitely not true so it’s false
Blizzard [7]3 years ago
3 0

Answer:

FALSE

Explanation:

A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. For example, the element hydrogen is made from atoms containing just one proton and one elect

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Which of the following is true regarding tissue?
Natasha2012 [34]

Answer:

<em>True: </em><u>b) Tissue is a group of specialized cells that work together for a common  function and form organs.</u>

Explanation:

Cells are the smallest units of life, they may be either unicellular or multicellular. Unicellular organs have a single cell capable of carrying out all of the functions necessary for its survival. Multicellular organisms are more complex, and require the work of multiple different cell types.

Their cells become differentiated- where they undergo certain processes to become specialized, and gain maturity. Groups of specialized cell types form tissue; these each have varying functions over time. Organs consist of two or more tissue types that are specifically organized to carry out a function.

5 0
3 years ago
Examine the flow chart above depicting the job of a gene known as p53. It plays an important role during the G2 checkpoint of ce
cluponka [151]

The p53 protein is known as the guardian of the genome because this protein prevents errors during DNA replication. It is a tumor suppressor gene.

<h3>Tumor suppressor genes </h3>

Tumor suppressor genes are genes that play fundamental cellular roles and prevent cell uncontrolled growth.

A tumor suppressor gene can repair errors that occurred during DNA replication, slow down the cycle of cell division, trigger programmed cell death, etc.

The p53 acts to control cell division and cell death, thereby avoiding the emergence of cancer cells.

Learn more about tumor suppressor genes here:

brainly.com/question/16188646

8 0
2 years ago
What type of cell is pictured here? How do you know?
Gre4nikov [31]
It's an animal cell because it doesn't have a cell wall or chloroplasts. It's also not rectanglular shaped. :)
3 0
2 years ago
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Antibiotic resistance in bacteria is the result of
evablogger [386]
The correct answer is c. Genetic Variation. Bacteria are very numerous, ad random mutation of bacterial DNA generates a wide variety of change, including resistance.
7 0
3 years ago
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HELP!! DNA was isolated from water samples taken from six different sites. This gel
VladimirAG [237]

After running DNA in a gel, bands of different sizes and species might appear. <em>Scientists know silver carp are at North Shore site 1 because one of the bands in lane 1 matches a band in the positive control (Option C). </em>

<h2>Gel</h2>

When DNA was isolated and run in a gel, many bands migrated to different points.

These bands were the different-sized fragments of DNA samples from different species from the six sites.

<em>Researchers wanted to figure out where the silver carp is. </em>

To do it, they needed to identify the bands on the gel that belonged  to the silver carp DNA, so they included negative and positive controls to make comparisons.

<h3>Positive and negative Controls</h3>

Negative and positive controls guarantee the interpretations of the results.

  • The positive control shows the band sizes that belong to the silver carp DNA.

<em>Any</em><em> band</em><em> in the sampling sites that</em><em> matches</em><em> one of the </em><em>positive control</em><em> bands indicates that the species is present at that site.</em>

  • The negative control is the opposite. It is the absence of the species' DNA.

<h3>Results interpretation</h3>

As we can see, there are four sites where the bands match one of the bands of the positive control. These are,

  1. North shore site 1
  2. Chicago site 1
  3. Calumet site 1
  4. Calumet site 2

This means that at these four sites, the silver carp is present.

<em>So scientists know silver carp are at North Shore site 1 because one of the</em><em> bands</em><em> in </em><em>lane 1</em><em> matches a band in the </em><em>positive control</em><em> (Option C). </em>

By looking at the lane of the North Shore site 1, we can also see another band (Thinner and grey). But this band does not match either of the positive control bands. This result suggests that the grey band belongs to another species' DNA.

You can learn more about gel electrophoresis at

brainly.com/question/9437877

brainly.com/question/895793

4 0
2 years ago
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