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3 years ago

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Currently, the best defined method for transferring dna into certain archaeal cells is __________. currently, the best defined m

ethod for transferring dna into certain archaeal cells is __________. transduction conjugation transformation transposition

1 answer:

Sophie [7]3 years ago

5 0

The answer to this question is located on google

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A meteorite is determined to be 4.5 billion years old. It now has 78 atoms of lead-206. Assuming no loss of daughter isotopes, h

vovangra [49]

Given the age of the meteorite is 4.5 billion years old with 78 atoms of lead-206 the answer should be B. 156. The half-life of uranium-238 in order to decay into lead-206 is 4.46 billion years, which means that the original number of atoms is 156.

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3 years ago

Why do plants not move?

notka56 [123]

They do, but very slowly. Mostly when growing or wind is hitting it.

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3 years ago

What is the answer?

Darina [25.2K]

Answer:

$\boxed {\tt 3}$

Explanation:

An element only has <u>one</u> type of atom and cannot be broken down by chemical means.

Let's analyze the answer choices.

1. This has two types of atoms, so it cannot be an element. It has more than one type of atom.

2. This has two types of atoms that are bonded together. It cannot be an element because there is more than one type of atom and the bonds can be broken.

3. This has one type of atoms, so it is an element.

Therefore the best answer choice is 3.

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3 years ago

Where does spongy bone occur in the skeleton?

Murrr4er [49]

spongy bone is found in the bones of the skull, sternum, vertebrae, the pelvis, the lining of the marrow cavity and the epiphysis.

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3 years ago

What is what is a hollow impression of a trilobite

gizmo_the_mogwai [7]

The hollow impression of a trilobite is an original remains fossil.

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3 years ago