B is the correct answer
A prokaryote cell has no distinct nucleus with a membrane and neither does it have other specialized organelle.
In a eukaryotic cell, the genetic material is DNA in the form of chromosomes which are found within a distinct nucleus.
Examples of prokaryotes Streptomyces soil bacteria (from which streptomycin antibiotic is derived), Escherichia coli bacterium and Streptococcus bacteria (which causes strep sore throat).
Examples of Eukaryotes include protozoa such as amoeba, fungi, plants, animals and generally all multicellular organisms.
Answer:
Mutations in the HBB (beta-globin) protein causes symptoms of sickle cell disease.
Environmental laws help ensure the environment and the economy are equally protected and promoted, not just because we need them both, but because each needs the other.
Answer:
It is passed from old cells to new cells during cell division.
Explanation:
Cell theory states that DNA is passed between cells during cell division
Flatworms are unsegmented worms. They have a tail and a head end by don't have any body cavity or specialized respiratory and circulatory organs. They are also bilaterally symmetrical which gives them both upper and lower surface. With this accompanying characteristics they typically have a flat shape or appearance.
