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siniylev [52]
2 years ago
7

Identify the labes structures

Biology
1 answer:
lbvjy [14]2 years ago
5 0

Answer:

2 3 4 1

Explanation:

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How might producing offspring with a wide variety of variations help a species to survive
tatiyna
The variations might help the organism to survive if there is a change in its environment
Eg heat resistant bacteria

The variation might help the organism survive predators
Eg. Green beetles blend with green leaves thus disabling crows to spot them



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3 years ago
Explain the relationship between personal health and community health?​
Korolek [52]

Answer:

Hope it's help you

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2 years ago
A 30n force pushes a box to the left, a 40n force pushes a box to the right, the box will
ser-zykov [4K]
The box will move to the right
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3 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.

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3 years ago
The impact of genes on observable traits can vary in different environments. thus, genes are said to be:
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They can be self-regulating. 
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