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Naily [24]
3 years ago
8

PLEASE ANSWER/ NO JOKE PLEASE DONT USE THIS FOR POINTS

Biology
1 answer:
Elena L [17]3 years ago
8 0
The answer is B (: . A meander is a river or road with a lot of curves
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The main force that causes filtration in a nephron is:.
vampirchik [111]
The main force that causes filtration in a nephron is... glomerular hydrostatic pressure.
I hope this helped:)
7 0
3 years ago
Bee wings and bat wings are very different, yet they have a similar function. Scientists consider this an example of _______.
Effectus [21]
I think it is D so try that
4 0
3 years ago
select all of the following that are examples of how organisms respond to external stimuli. multiple select question. a person r
Airida [17]

The answer is a person removes their hand after touching a hot stove and a person turns their head toward the source of loud noise.

External stimuli are factors outside of the body that is taken in by receptors and will lead to a response. Examples of external stimuli include temperature changes, vision, hearing, tasting, smelling, and even sunlight for plants.

Learn more about External stimuli here:

brainly.com/question/11557304

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6 0
2 years ago
Each ABO blood group is associated with the presence/absence of RBC antigens and the presence/absence of antibodies in the plasm
harina [27]

Answer:

a. Type O blood - No A or B antigens on RBCs-Anti-A antibodies in plasma-Anti-B antibodies in plasma

b. Type A blood - A antigen on RBCs- Anti-B antibodies in plasma

c. Type B blood - B antigen on RBCs- Anti-A antibodies in plasma

d. Type AB blood - A antigen on RBCs- B antigen on RBCs- Neither anti-A or anti-B in plasma

Explanation:

ABO blood grouping system represents multiple allelism which was discovered in humans by Karl Landsteiner. The blood group is determined by the presence or absence of A & B antigens and antibodies.

The 4 blood groups which exist in ABO system are O, A, B and AB. Also, allele A and B are co-dominant i.e. if they both will exist on the surface of an RBC then both will be equally expressed which implies that there will be no dominant or recessive allele.

Type O blood group has H antigen on the surface of RBC and has both the antibodies i.e. antibody A and B. The absence of antigens A and B makes it a universal donor.

Type A blood group has A antigen on RBC and has antibody B in the plasma.

Type B blood group has B antigen on RBC and has antibody A in the plasma.

Type AB blood group has both the antigens i.e. antigen A and B on RBC and does not have any antibody in the plasma which makes it a universal acceptor.

3 0
3 years ago
Which human activity impacts the equilibrium of both the nitrogen and phosphate cycles
N76 [4]

Answer:

B. over-fertilizing soil

4 0
3 years ago
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