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kiruha [24]
3 years ago
13

WORTH 90 POINTS I NEED THIS ASAP

Biology
2 answers:
Margaret [11]3 years ago
8 0

the answer is A. they grab the fish and frogs underwater

Elan Coil [88]3 years ago
7 0

Answer:

The answer is A. Hope this helps :)

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What type of joint connects skull to spine?
rodikova [14]
The Atlas. This is the topmost vertebra, and with the axis, it forms a joint that connects the skull to the spine. These two parts of the body (The Atlas and The Axis) are special, and different from normal vertebra, because they are made to allow a greater range of motion and movement in the head. I hope this helps! Also, google is always a helpful tool to use as well. :)
6 0
4 years ago
Plasmids are small circular DNA molecules found in bacteria that replicate separately from chromosomes. Why are plasmids essenti
oksano4ka [1.4K]

Answer:

DNA from a gene of interest can be inserted into a plasmid, then the modified plasmid can be inserted into a bacterial cell to replicate a gene of interest many times.

Explanation:

Plasmids are the extra-chromosomal circular DNA present in bacterial cells. Plasmids are able to replicate themselves independent of genetic DNA. Their ability to self replicate allows them to maintain themselves in the bacterial cells. This is why plasmids are used as cloning vectors in recombinant DNA technology.

A gene of interest is isolated from the donor cell and is inserted into the plasmid. The recombinant plasmid is introduced into bacterial cells where it replicates the ligated desired gene and allows the gene cloning. For example, the human insulin gene is ligated with plasmid and the recombinant plasmid is introduced in <em>E. coli</em> where it replicates the human insulin gene and allows the production of desired copies of the gene.

4 0
3 years ago
discuss the indications for the placement of provisional coverage for a crown or a fixed bridge preparation?
Savatey [412]

Answer:

Explanation:

Based on the information provided within the question it can be said that there are various reasons for the placement of this, most of the reasons include,

  • To prevent or reduce sensitivity and discomfort of the prepared tooth & surrounding structures  
  • To protect the margins of the preparation
  • To maintain the function & esthetics of the tooth
  • To prevent shifting of adjacent or opposing teeth
6 0
4 years ago
Differentiate between the lithosphere and asthenosphere
allsm [11]

Answer:

Lithosphere made the earth outermost layer, crust and upper portion of mantle.

Asthenosphere made the middle layer of earth.

Explanation:

Lithosphere:

Lithosphere made the earth outermost layer, crust and upper portion of mantle.

It is made up of tectonic plates.

Lithosphere present over the asthenosphere.

Lithosphere have low temperature as compared to asthenosphere.

Its rocks are rigid.

It is less viscous and dense

Asthenosphere:

Asthenosphere made the middle layer of earth.

When material present in asthenosphere solidify it becomes the part of lithosphere.

Asthenosphere have high temperature as compared to the lithosphere.

Its rocks are plastic and have tendency to flow.

It is more viscous and dense.

3 0
4 years ago
List and explain at least 3 of the adaptations that allowed plants to move from water to land.
Travka [436]

Answer:

moss hornworts seed plants

Explanation: there plants that could be in the water.

3 0
4 years ago
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