What types of blood are there?

Biology

2 answers:

mars1129 [50]3 years ago

7 0

Answer: four main blood groups

-A, B, AB, O

Explanation:

coldgirl [10]3 years ago

5 0

Answer:There are four main blood groups (types of blood) – A, B, AB and O. Your blood group is determined by the genes you inherit from your parents. Each group can be either RhD positive or RhD negative, which means in total there are eight main blood groups.

Explanation:

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Can someone help with the labels for this ?

JulsSmile [24]

Answer:

Refer to the attached image for correct labeling.

Explanation:

The diagram is of a plant cell and its organelles.
The nucleus houses the genetic material and controls all life processes.
A plant cell contains one large vacuole in the center that stores water and nutrients.
Chloroplast is the site for photosynthesis. It captures light and utilizes it and carbondioxide to produce glucose.
Mitochondria are called the power house of the cell. Through a process called cellular respiration, they break down the glucose produced in photosynthesis into energy compounds such as ATP as well as oxygen and water.
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6 0

3 years ago

there are multiple chickens and rabbits in a cage there are 72 heads and 200 feet inside of the cage how many chickens are in th

schepotkina [342]

The answer is 44 chickens and 28 rabbits.

We have a system of two equations.
x - the number of rabbits
y - the number of chickens

Both chicken and rabbit have only 1 head, so the first equation is: x + y = 72.
Since rabbits have 4 legs and chickens 2 legs, the second equation is: 4x + 2y = 200.

Now, let's solve the system:
x + y = 72
4x + 2y = 200
___________
y = 72 - x
⇒ 4x + 2 · (72 - x) = 200
4x + 2 · 72 - 2 · x = 200
4x + 144 - 2x = 200
2x + 144 = 200
2x = 200 - 144
2x = 56
⇒ x = 56 ÷ 2 = 28
So, there are 28 rabbits.

Since
y = 72 - x = 72 - 28 = 44,
there are 44 chickens.

7 0

3 years ago

Erwin Chargaff examined DNA samples from different organisms to study base pairing. Some data from DNA

anastassius [24]

Answer:d

Explanation:

3 0

3 years ago

Read 2 more answers

3. The allele for round seeds is represented by R.

lutik1710 [3]

Answer:

Explanation:

Alleles that are recessive will be lower case. Alleles that are dominant are upper case. Since we have two recessive alleles represented by 'R', the alleles would be written as 'rr'.

5 0

2 years ago

What do all forms of transport have in common?

allsm [11]

Active transport requires energy from the cell. It occurs when substances move from areas of lower to higher concentration or when very large molecules are transported. Types of active transport include ion pumps, such as the sodium-potassium pump, and vesicle transport, which includes endocytosis and exocytosis.

3 0

3 years ago