If all living systems, not plants, have blood; then why do blood types matter?

Prevent risks

Explanation:

The importance of knowing your blood type is to prevent the risk of you receiving an incompatible blood type at a time of need, such as during a blood transfusion or during surgery. If two different blood types are mixed, it can lead to a clumping of blood cells that can be potentially fatal.

because when humans get blood transfusions they need the same type of blood in their body or they will reject it and die.

Explanation:

each blood type has certain antigens and antibodies that will only accept a certain blood type. type O can give to all blood types (A,B,AB,O) but can only receive from type O. Type AB can receive from A,B and O because it has both A and B antigens. if you were to give type A to a type B person the type B antibodies would attack the foreign type A with its anti-A antibodies.

no, i was listening to water by schoolboy q while and i saw this question

explenation:

water isn't wet. wetness is a description of our experience of water; what happens to us when we come into contact with water in such a way that it impinges on our state of being. we, or our possessions, 'get wet'. a less impinging sense experience of water is that it is cold or warm, while visual experience tells us that it is green or blue or muddy or fast-flowing. we learn by experience that a sensation of wetness is associated with water: 'there must be a leak/i must have sat in something.'

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

mark brainliest and have a great day!