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jeka57 [31]
3 years ago
14

"Which phase of mitosis shows the greatest difference between animal cells and plant cells"?

Biology
1 answer:
emmasim [6.3K]3 years ago
5 0
The answer is Cytokinesis
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I need help again please I mark you as brainest I promise who ever give brainest answer ​
Usimov [2.4K]
The answer is radiation
5 0
2 years ago
The word facilitate means ""to make easier."" ___________________ means that the transport protein makes it easier for a molecul
lorasvet [3.4K]

Answer :FACILITATED DIFFUSIION

Explanation;Generally polar molecules like  glucose, amino acids and Ions such as potassium and sodium  can not  enter or leave  the cell  through the phospholipid bilayer membrane of the cell.  They  are assisted to pass  accross this barrier with the  help of (1) channel proteins 2) carrier proteins.

The process by which these proteins created hydrophilic (water loving environments) to carry out transport of the above molecules and ions accross the hydrophobic (water hating environment) phospholipid membrane layer  to reach the cytoplasm of cells  is called facilitated diffusion.

This transport process is not active transport, because  the moleucules moved down their concentration gradients.

Water- filled pores made up Channel proteins. They  allows charged ions to pass through, therefore Ion channels are example of channel proteins;  for example Potassium channels, Calcium channels. They are gated, thus  the protein parts can move back and front like a gate to close or open the  pores like a <u>Gate. Channels proteins are fixed.</u>

Carrier proteins are  flexible and change the shapes with respect to the direction to convey the molecules accross the membrane, they are not fixed.

3 0
3 years ago
Which two characteristics describes the most stable ecosystem on Earth?
andreyandreev [35.5K]

Answer:

c. They have high biodiversity

Explanation:

4 0
2 years ago
Read 2 more answers
What are two issues with Lamarks theory of evolution!!!<br><br> I will mark brainest!!!!! Pls
Mkey [24]

Answer:

  • If it were true, all organisms would be complex and simple organisms would disappear
  • It does not account for genetic mutations known to affect physical traits

Explanation:

Lamark's theory of evolution is that changes in the organism's physical form during its lifetime can be passed on to its offspring.  In other words, he believed that children can inherit acquired characteristics from their parents.

The classic example is that he believed giraffes evolved long necks because they would stretch upwords to eat leaves from tall trees, elongating their necks, and then would pass on a longer neck to its children. Or in humans, that a body builder would make a muscular child because of their intense training!

There are a few problems with this theory:

  • If we believe this theory, organisms would always be getting more and more complex and 'improved', so simple organisms would disappear.
  • We know that changes to the DNA influence inherited physical characteristics, not simply continued use
5 0
3 years ago
The Scapula articulates with the ____ and the _____? Multiple Choice Acromial end of the clavicle; trochlea of the humerus Acrom
agasfer [191]

Answer:

head of the humerus, Acromial end of the clavicle

Explanation:

The shoulder is made up of three bones: the scapula, the clavicle and the humerus (upper arm bone).  Two joints in the shoulder allow it to move: the  acromioclavicular joint, where the highest point of the scapula (acromion) meets the clavicle at its acromial end (the sternal end of the clavicle is bounded to the sternon), and the glenohumeral joint. The scapula also bounds to the head of the humerus, it is, the distal superior end.

6 0
3 years ago
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