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.
Answer:
5
Explanation:
5.5.5.5.5.5.5.5.. 5.. 5.5.5.5
I believe it’s the Carboxyl group but confirm online. Hope this helped :))
1.Frost Wedging (Freeze-Thaw)
Water expands by 9 percent when it freezes. As it expands, it exerts up to 4.3 million pounds per square foot of pressure. Since water seeks low points, repeated freezing and thawing can lead to deep vertical fissures as cracks are extended downward. Cracks that allow entry of roots lead to similar wedging.
2.Crystal Formation
Crystal formation cracks rock in a similar way. Most water contains dissolved salts. When water in rock fissures evaporate, the salt concentration increases, which leads to crystallization. This occurs in arid regions where the humidity fluctuates widely, so that the salt can be redissolved and carried into new fissures.
hope i helped
Answer:
The cell cycle has two major phases: interphase and the mitotic phase.
During interphase, the cell grows and DNA is replicated.
During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides.
There are two types of cell division in eukaryotes: mitosis and meiosis.
Explanation:
