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Kay [80]
3 years ago
14

How many years did the precambrain era span

Biology
1 answer:
Vlad1618 [11]3 years ago
5 0

Answer:

Explanation:

It is estimated that the Precambrian Era lasted between 3.9 and 4 billion years. Many scientists believe that this era accounts for 90 percent of the world's history.

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Choose the sources of heat which create metamorphic rocks?
Sphinxa [80]

Answer:

geothermal gradien and intrusive magma? correct me if im wrong

Explanation:

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3 years ago
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A worm breaks down the remains of dead organisms and releases the nutrients in soil. this helps plants grow what is the role of
ludmilkaskok [199]
The worm is the decomposer. Decomposers break down dead matter and gives room for new life to thrive.
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3 years ago
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A tomato with a gene from a fish that helps the tomato resist frost damage is _____.
dangina [55]

Answer:

a. an example of a transgenic tomato (also called GMO tomato)

Explanation:

Genetic modification is the process by which an organim's genome is manipulated in order to achieve a desirable feature in such organism. Also called genetic engineering, genetic modification involves using biotechnology to alter an organims genetic composition. The organism whose genome is manipulated is called GENETICALLY MODIFIED ORGANISM (GMO) or TRANSGENIC ORGANISM.

In this case, a tomato with a gene from a fish that helps the tomato resist frost damage is said to be an example of GMO or transgenic organism because the genome of the tomato plant has been manipulated by inserting a desirable gene (resistance to frost) into it.

7 0
3 years ago
Scientific models can be made of plastic or even just be a drawing. Which is a limitation of the drawing and not a model? I need
mojhsa [17]

Answer:

It did not explain the process more clearly.

Explanation:

Limitation of the drawing is that it did not explain the process or phenomena clearly as compared to model which shows a phenomena more clearly. the main reason for that the model has a physical body while on the other hand, drawing is only the picture. in the model we can perform the whole process how a phenomena occurs, its different stages and its final outcome while these things can't be done with drawings.

6 0
2 years ago
Need help!!! it’s due today
Mamont248 [21]

The first one, is :

Embryology - The branch of biology and medicine concerned with the study of embryos and their development.

The second one is:

Vestial Traits - An anatomical feature or behavior that no longer seems to have a purpose in the current form of an organism of the given species.

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