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olga nikolaevna [1]
3 years ago
11

Why do you think it’s important that cell membranes are selectively permeable?

Biology
2 answers:
TiliK225 [7]3 years ago
7 0

So they will not explode.

Artist 52 [7]3 years ago
3 0

So that they don't explode.

AKA with a thing called osmosis (transportation of water through cells.)

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Mnenie [13.5K]

They can protest to use safer sources of energy like power plants.

3 0
3 years ago
5.Most of the fish in a lake produce a certain number of eggs each spring. However, one fish has the ability to carry and lay mo
ivolga24 [154]

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reproductive; and produce offspring

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8 0
3 years ago
For a science fair project, two students decided to repeat the Hershey and Chase experiment, with modifications. They decided to
posledela

Answer:

The correct answer will be option-E

Explanation:

Hershey and Chase's experiment was performed to test whether DNA serves as the genetic material or protein.

To perform experiment they grew bacteriophage into radiolabeled phosphorus and sulfur compounds. The phosphorus is an integral part of the structure of DNA whereas proteins contain sulfur in their structure.  

In the given condition if radiolabeled nitrogen is utilized then the experiment will fail as the structure of proteins also contains an amino group( NH₂) in their structure as well as DNA. The scientist will not be able to identify whether the DNA is the genetic material or protein.

Thus, option-E is the correct answer.

7 0
3 years ago
If an infant reaches for a toy hidden under a cloth, what does this suggest?
adelina 88 [10]
The correct answer is b.
The child is reaching for a toy which is not visible to him (hidden under a cloth), therefore, the child has a mental representation of the object in his/her mind. This action means that the child acknowledges that the objects continue to exist even when he/she can not hear or see them. This thought process is called object permanence and it is an ability acquired between the 4th and 7th month of a child's development.

4 0
3 years ago
How are minerals classified, and what common characteristics do major minerals share nutritionally?
tamaranim1 [39]
How they’re classified:

There are two main classifications of minerals major minerals are minerals your body needs in relatively large quantities and trace minerals are minerals your body needs in relatively small quantities major minerals include sodium,potassium, chloride, calcium, phosphorus, magnesium, and sulfur

What they share nutritionally:

They’re solid, inorganic, naturally occurring, and have a definite chemical composition and crystalline structure
5 0
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