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Biology

2 answers:

Nitella [24]3 years ago

8 0

Fertilization maybe?

Triss [41]3 years ago

8 0

Following are the process that change earth surface constantly and also help in the formation of soil.
1.Volcanic eruption
2. Earth quake
3. Plate tectonics
4. wind
5. Glacier erosion

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What term is used to describe bacterial cells that can naturally take up dna from their environment?

Maru [420]

<h2>The correct answer is: Competent cells</h2>

Explanation:

Bacterial cells have the capability of incorporating foreign naked DNA or deoxyribonucleic acid fragments from the environment or the exterior of the cell to the interior of the cell. This process is known as Transformation.
The bacterial cells which are able to undergo transformation are called Competent bacterial cells.
Some of the bacterial cells are naturally competent like<em> Bacillus subtilis, Streptocossus pneumoniae</em> while others like <em>Escherishia coli </em>need to be chemically treated to make them artificially competent.
In natural competence, the foreign DNA from the cell exterior is incorporated into the cell interior through specific protein complexes present in the plasma membrane of the bacterial cells.
In artificial competence, the negative charge on foreign DNA is masked by positively charged calcium ions (so that it is not repelled by the negative charge of the lipid bilayer of the bacterial cell plasma membrane) and then small pores are created in the lipid bilayer of the plasma membrane of the bacterial cells by giving a heat shock to the cells. This results in the uptake of the DNA by the bacterial cells.

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3 years ago

What makes fingerprints individual? How do scientists match a fingerprint to a specific person?

vichka [17]

The skin on the palmar surface of the hands and feet forms ridges, so-called papillary ridges, in patterns that are unique to each individual and which do not change over time. Even identical twins (who share their DNA) do not have identical fingerprints.

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3 years ago

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What is the biggest problem of over use of pesticides

liq [111]

Answer:

There have been many issues that have been seen to arise due to the over use of pesticide including:

Explanation:

Overuse has been linked to cancer, Alzheimer's Disease, ADHD, and even birth defects. Along with being reporting to have the potential to harm the nervous system, the reproductive system, and the endocrine system.

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3 years ago

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If reproductive rates are low what kind of exponential or logistic

xxMikexx [17]

<span>The answer is logistic.In this types of growth, the population growth slows as it reaches carrying capacity. This is when there are increased competition for limited resources, between individuals in the population, in the environment. This slow rate of reproduction also occurs in type I survivorship curves</span>

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3 years ago

Which scenario describes fungi as a decomposer?

disa [49]

As per I know there is no scenario which describes fungi as a decomposer.

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Algae are not plants, animals or fungi. They belong to Kingdom Protista, a diverse group of single-celled eukaryotes.
Protists have their own kingdom because many species share some characteristics of plants, animals or fungi.
Algae belong to the group of plant-like protists.
They are autotrophs that fulfill the role of producer in ecosystems because they make their own food via photosynthesis, like plants.
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4 0

3 years ago