Compatibility in the ABO blood type is necessary for the blood transfusion, but that is not sufficient to determine the possible donor.
The Rh factor should also be taken into consideration when determining blood transfusion compatibility. A person can be Rh positive or negative, and the Rh positive Rh blood donors can only donate to other Rh-positive people.
Herbivores depend on plants for food. Carnivores depend on herbivores. Omnivores depend on both plants and animals. Plants depend on decomposed animals and plants for food
Answer:
TRUE
Explanation:
No biological system is completely closed.
A nutrient cycle is the movement and exchange of both organic and inorganic matter back into the production of matter. This cycle is a recycling system which always occurs no matter what.
In a system that looks closed (closed loop), nutrients may be limited because they are not cycled through the system fast enough and/or it is not possible to compensate for deficiencies by migration.
Answer:
true, the alternative would be postzygotic barriers.
Explanation:
Answer:
The escape velocity of the Earth is about 11 km/s. In other words, anything on the Earth's leading side would fly off into space, continuing along the Earth's orbital path around the sun. ... Without the outward centripetal force to counteract the inward pull of gravity, the Earth would begin falling towards the sun.
Explanation:
