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stiv31 [10]
3 years ago
5

When a tool mark is found, what is done first?

Biology
2 answers:
kondor19780726 [428]3 years ago
7 0
The answer is to take a photograph of the mark
Contact [7]3 years ago
6 0

When a tool mark is found, taking a photograph of the mark is done first.

A toolmark is understood as the impression that the contact of a tool (or a similar object) leaves onto a surface. When the tool or object contacts the surface with enough force to create an indentation, the pattern of the tool is reproduced onto that surface. Te examination of such marks is of paramount importance in the field of criminalistics.

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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
. Professor Dr. Uppal Pal studied the Borrelia burgdorferi bacterium at the University of Maryland. Dr. Pal found that Lyme dise
Katen [24]

Answer:

Which sentence from the passage shows that the function of the river depicted here has carried through to modern times?

Explanation:

Which sentence from the passage shows that the function of the river depicted here has carried through to modern times?

3 0
3 years ago
In the classification of living organisms, which of the following is an example of a domain?
cupoosta [38]

Answer:

it's BACTERIA

Explanation:

There are three widely recognized domains: Archaea, Bacteria, and Eukarya. Viruses lack many traits of living things so the majority of scientists do not classify them as living organisms.

6 0
3 years ago
How are the front limbs different from the hind limbs on a frog
katovenus [111]
Which limbs the  frog uses most to land  on where  and how  he  landing.
7 0
3 years ago
You’re talking with Liliana before her release from the hospital. Which of her statements indicates the need for further patient
olasank [31]

Basing this answer on the patient with a tibia fracture and open reduction, we can confirm that Liliana indicating that she should only take calcium supplements would require further patient education.

<h3>Why is this statement wrong?</h3>

Liliana will be recovering from a post-op condition. This means that she will be at risk of developing an infection. This will most likely require preemptive antibiotic supplements to reduce the likelihood of infection. This may be coupled with pain medication as well.

Therefore, since Liliana will require more medications and supplements than calcium, her statement shows the need for further patient education.

To learn more about antibiotics visit:

brainly.com/question/14138965?referrer=searchResults

4 0
2 years ago
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