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Lena [83]
3 years ago
10

Differentiate between blood types O+ and O- properties. Explain the type of donor O- is and what type of blood an O- person shou

ld receive and why.
Biology
2 answers:
Masja [62]3 years ago
7 0
People with O+ blood cannot donate their blood to negative blood types, while people with O- blood can donate to any blood type. This makes them the "universal donor." However, they can only receive O- blood.
nadezda [96]3 years ago
5 0
The difference between the O+ blood type and the O- blood type is that even though they both belong to the blood group O, the O+ type has rhesus factor (an antigen which may be present on the blood) on the red blood cells while O- does not have Rhesus Factor on the red blood cells.

O- can only get blood from O- donors because the O- red blood cell would have no antigen on it (neither the A, B or Rhesus Factor Antigen).  As a result if they obtain blood from any other blood type then their white blood cells would attack the red blood cells due to the the presence of foreign bodies in the form of the antigen on that blood.
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A performer, seated on a trapeze, is swinging back and forth with a period of 8.90 s. If she stands up, thus raising the center
iren2701 [21]

Answer:

8.800s

Explanation:

When the performer swings, she oscillates in SHM about Lo of the string with time period To = 8.90s.

First, determine the original length Lo, where for a SHM the time period is related to length and the gravitational acceleration by the equation

T = 2π×√(Lo/g)..... (1)

Let's make Lo the subject of the formulae

Lo = gTo^2/4π^2 ..... (2)

Let's put our values into equation (2) to get Lo

Lo = gTo^2/4π^2

= (9.8m/s^2)(8.90s)^2

------------------------------

4π^2

= 19.663m

Second instant, when she rise by 44.0cm, so the length Lo will be reduced by 44.0cm and the final length will be

L = Lo - (0.44m)

= 19.663m - 0.44m

= 19.223m

Now let use the value of L into equation (1) to get the period T after raising

T = 2π×√(L/g)

= 2π×√(19.223m/9.8m/s^2)

= 8.800s

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3 years ago
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2 years ago
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TEA [102]

Reclassification of fungi

Explanation:

Fungi were classified under kingdom plantae by the earlier taxonomists due to their similarities. Both of them were grown on the ground and fixed to the ground, they do not move, fungi like plants also produced fruiting bodies.

However, there were many physiological, morphological, genetic, and biochemical features which were unique and different from other kingdoms.

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