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stealth61 [152]
3 years ago
10

What is main function of cell membrane

Biology
2 answers:
Reptile [31]3 years ago
6 0
It selectively controls what goes in and out of the cell
SIZIF [17.4K]3 years ago
4 0
To protect the cell is main function of cell membrane
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If the producer has 40,000 kcal of energy and the primary consumer 4000 1 point
NeTakaya

10% energy was passed on if the producer has 40,000 kcal of energy and the primary consumer 4000 Kcal.

The right answer is option 2.

Explanation:

The producer is the initiator of food chain in a food chain and pyramid.

The amount of energy transferred or pass on to the other level or higher level is 10%. The 90% percent energy is being consumed by organism of the trophic level in carrying out metabolic processes, reproduction etc.

The heat gets dissipated only a small amount reaches the other trophic level.

This logic is also called 10% rule of energy transfer.

So, the producer has 40,000 Kcal of energy

primary consumer comes just after producer as it is a herbivore.

so,

\frac{10}{100} x 40000

= 4000 Kcal

Thus 10% of the energy is passed on.

8 0
3 years ago
What is the process of natural selection and how does it lead to evolution?
liubo4ka [24]

Answer:

Natural selection leads to evolution when the people having certain characteristics posses the greater chance of survival than the others that are not adapted to the changes, these adapted characteristics are passed to the next generations. Hence, the correct answer would be ''Natural selection leads to evolution''.

Explanation:

7 0
4 years ago
The middle primary germ layer is called __________, which gives rise to a gelatinous material called __________, which then give
Tema [17]
The middle primary germ layer is called MESODERM, which gives rise to a gelatinous material called MESENCHYME, which then gives rise to different types of connective tissue such as bone, cartilage, and blood.
5 0
3 years ago
1 pts
Scrat [10]

Answer:

They waited before crossing a busy street

Explanation:

Assume the graph looks like the one below.

It shows that, from Point B to C, the distance they were from home did not change.  They had stopped.

A possible interpretation is that they waited before crossing a busy street.

If they had begun accelerating, BC would have been steeper than AB.

If they had slowed their walk, BC would still point up. However, its slope would be less than that of AB.

If they had returned home, BC would point down and to the right.

 

4 0
3 years ago
Which distinction below would a dichotomous key not identify?
Lisa [10]
The anwser is C. <span>Purple or triangle on odysseyware</span>
8 0
3 years ago
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