the first answer as blood needs to be oxygenated to be passes round the body then when its deoxgenated it will return to the heart to be pumped around the body again
€< is a mentrial function therefore its atoms split.
answer: b
Explanation:
If one species cannot then adapt an appropriate defense, they may go extinct. In this way, the predator prey relationship often forms an “evolutionary arms race”, in which eat species rapidly evolves to counter the oth
The four terrestrial planets, Mercury, Venus, Earth, and Mars, are all much closer together compared to the distances separating the outer planets (anything beyond mars)
Answer:
Due to change in genetic combination.
Explanation:
The results change as the number of trials increased because variation occur in the genetic combinations of chickens. It is important to breed the chickens repeatedly in this experiment in order to gain accuracy and attain best results. If the chicken is breed repeatedly, at the beginning changes occur in their offspring due to change in their genetic makeup so for accurate results repetition is necessary.
