Scientists study both the flatworm Planaria and the roundworm Caenorhabditis elegans in laboratories, using them as test subjects, and while they may seem similar, they have some distinct internal and external differences. Flatworms (phylum Platyhelminthes) and roundworms (phylum Nematoda) differ in shape, means of locomotion, how their digestive systems function, and in the ways they are harmful to human beings. While both species are called worms, they are not closely related.
1) c- bacteria
2) d- break down dead organisms
Answer:
newton's laws rely on the fact that gravity will bring an object naturally down.
Explanation:
the weight of any object determines the force it has when falling
Answer:
A. ovary
Explanation:
It takes place in a fallopian tube that links an ovary to the uterus.
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