BIOLOGY HIGH SCHOOL

Which part of roots is involved in the exchange of respiratory gases

Answers

Answer 1
Answer: The part of roots involved in exchange of respiratory gases is root surface,,, 

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MIDDLE SCHOOL

(TRUE OR FALSE) comparative anatomists can compare only the body structures of species that currently exist on this planet

Answers

false

false. the answer is false

MIDDLE SCHOOL

identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

Answers

1. The mitochondria provides energy for the cell, (sometimes called the powerhouse of the cell).
2. The nucleus stores DNA and directs the cell.
3. Ribosomes make proteins.
4. The Golgi Apparatus sorts the proteins and ships them to other parts of the cell.
HIGH SCHOOL

In what part of cell cycle does dna replication take place what is the duplicate copy called

Answers

I think it would be the interphase
HIGH SCHOOL

What is the purpose of natural selection

Answers

to keep life going even as the environment changes

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
COLLEGE

What process releases carbon dioxide back into the air

Answers

The Carbon Cycle is the process releases carbon dioxide back into the air
HIGH SCHOOL

The lungs deliver a regular supply of oxygen to the blood. Which is in turn circulated to most all the cells of the body. At the same time oxygen is consumed during aerobic cellular respiration within these cells. This implies that?

Answers

This implies that oxygen will passively diffuse into the cells.

The diffusion of oxygen into the cells undergoes passive diffusion (the movement of a molecule through a cell wall across a concentration gradient without the use of energy). During respiration, oxygen molecules move from where there is a higher concentration (such as the air in the lungs) to where there is a lower concentration.  


Answer:

There occurs passive diffusion of oxygen from blood into the cell

Explanation:

This implies that cells take oxygen supply from the blood . The cellular plasma membrane is a permeable membrane that has controlled regulatory mechanism to allow diffusion of oxygen across the cell membrane.

This diffusion mechanism is passively driven from region of high oxygen concentration (outside the cell or in the blood  (body fluid)) to regions of low oxygen concentration (with in the cell membrane)

MIDDLE SCHOOL

A homozygous dominant mother and a homozygous recessive father have two children. Show genetic cross and What is the probability that the children are lactose intolerant?

Answers

I’m pretty sure it 100%
HIGH SCHOOL

Four forces are being applied to move an object to the left. Force 1 is pushing to the right at 200 N. Force 2 is pushing to the left at 500 N. Force 3 is pushing to the right at 100 N. Force 4 is pushing to the left at 50 N. What's the net force acting on this object?

Answers

Answer:

Net force is 250 N and it act in right direction.

Explanation:

It is given that, four forces are being applied to move an object to the left. Let the force acting on the left is F. Force 1 is pushing to the right at 200 N. Force 2 is pushing to the left at 500 N. Force 3 is pushing to the right at 100 N. Force 4 is pushing to the left at 50 N.

So, net force acting on left is : F + 500 N +50 N

Net force acting right is : 200 N + 100 N

i.e.

F = -250 N

So, the net force acting on the object is 250 N in the right direction.                                          

200 + 100 = 300

500 + 50 = 550

550 - 300 = 250 

Answer : 250 N
HIGH SCHOOL

Medal 4 help Select all that apply. You can identify or classify archaea and eubacteria by _____.

habitat
means of existence
genetic make-up
shape and arrangement of cells
how they move

(can be more then one)

Answers

Here are the answers that would best complete the given statement above. You can identify or classify archaea and eubacteria by their habitat, means of existence, genetic make-up, shape and arrangement of cells, and how they move. All of the given terms above can be applied to both. Hope this answer helps.

All of the above options are the correct answers to this question

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