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jok3333 [9.3K]
2 years ago
6

Explain the mechanism of the movement of the human forelimbs

Biology
1 answer:
Harrizon [31]2 years ago
6 0

Answer:

Forelimb protraction starts with a rapid flexion of the shoulder joint bringing the humerus close to its maximum cranial rotation angle, almost in parallel to the mid-sagittal plane. This position has already been reached by the middle of the swing phase.

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If air resistance is ignored, then according to the law of conservation of energy, the sum of potential energy and kinetic energ
laiz [17]
Would be same everywhere !! mechanical energy is always constant !

and it doesn't matter air is present or not....total energy is always constant !
7 0
3 years ago
An organism must have a ________ in order to be considered living.
lesantik [10]
I would say C.nervous system because that pretty much defines all of the answer choices.
6 0
3 years ago
A person's blood type is determined by the:_______
matrenka [14]

Answer:

) Presence of specific glycoproteins on the cell membrane

Explanation:

When specif glycoproteins(antigens)  or antibody are present on a cell membrane of Red blood cell,they can  be used to identify the blood type.Antigens are substances capable of triggering an immune response in a cells.

In addition,they function in transport of molecules across the RBC. They help in the maintenance of the RBC,and aiding the arrest of cells capable of causing diseases to the body.

Therefore,they are good determinants of blood types,based on this two types of antigens present in a  blood type.

These two antigens  used for classification of blood types are the 1-the ABO antigens 2,the Rhesus antigens.

Essentially,when a WBC produces an antibody ,which is a molecule that defends the body,If this is not compatible,the antibody will recognize it as a foreign body and attack it.Thus such blood types are not compatible. Thus the antibody-antigen reaction are good for knowing and classify blood types.

Antigen can also be glycoprotein,carbohydrate or glycolipids.

Generally blood types are inherited from both parents.Therefore the antigen present on the RBC are combination of the alleles from each parent.

4 0
3 years ago
Which term best describes the movement of water molecules in and out of a cell
stiv31 [10]

The movement of water molecules in and out of a cell is called osmosis.

Osmosis, or the diffusion of water molecules, is when water molecules flow in or out of a cell from high to low concentrations (down their concentration gradient). The ultimate goal of osmosis is to establish equilibrium between the cell and its outer environment.

Hope this helps!

8 0
3 years ago
Read 2 more answers
How does the law of conservation of energy apple to virbatioin
Zinaida [17]

Answer:

As objects move around over time, the energy associated with them—e.g., kinetic, gravitational potential, heat—might change forms, but if energy is conserved, then the total will remain the same. Conservation of energy applies only to isolated systems.

Explanation:

5 0
3 years ago
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