Answer:
Respiratory system and circulatory system.
The respiratory system allow living things to obtain oxygen from the air while the circulatory system allows oxygen to be carried around the body.
Sound would travel faster in a thick piece of metal since the molecules are closer together. However, since there are more molecules, it would be quieter on the other side than the hollow metal.
Answer:
it is implanted in the tissue of uterus.
Explanation:
the egg cell is usually fertilized in the oviduct and then sweeped out or moved out of the oviduct by cilia or peristaltic movements in the oviduct to the uterus. when it is moved to the uterus it is imolanted in the tissues there. give me a brainliest if i helped!♡
Answer:
In the natural world, limiting factors like the availability of food, water, shelter and space can change the population of any living organism. Other limiting factors include:competition for resources, predation and disease can also impact populations.
Explanation:
