All categories

3 years ago

To what phylum and class do tapeworms belong

1 answer:

4 0

Tapeworms belong to the Cestoidea class and the Platyhelminthes or flatworm phylum. Tapeworms are segmented and flat worms that are present in the intestines of a few animals. The Cestoidea class is a group of parasitic worms that belongs the flatworm phylum. All of the organisms included in this class are parasitic and live in digestive tracts. Humans do acquire these worms especially tapeworms when we eat meat like pork, fish and beef that is not cooked well. The largest species of tapeworm can be found in beef called the T. saginata. It could grow up to 20 meters or 65 feet.

You might be interested in

Where does most of the evaporation happening within the water cycle occur?

ikadub [295]

The oceans are by far the largest reservoir of water.

6 0

3 years ago

Read 2 more answers

A change in the gene pool of a population over time is called adaptation natural selection evolution survival of the fittest

Kitty [74]

Evolution is the change in the gene pool of a population over time

6 0

3 years ago

When a eukaryotic cell is not undergoing mitosis, the dna and its associated proteins appear as a visible network of dark fibers

OlgaM077 [116]

Answer

When a eukaryotic cell is not undergoing mitosis, the DNA and its associated proteins appear as a visible network of dark fibers called the Chromatin.

Definition

Chromatin is a thread like structure that can be seen inside nucleus before cell division. It is a complex of DNA and histone proteins.

Forms of chromatin

Chromatin exist in two forms, that is

a. Euchromatin

It is less condensed and can be easily transcribed.

b. Heterochromatin

It is highly condensed and not transcribed as easy.

Organization of chromatin

Microscopy has shown the appearance of chromatin as beads on a string. The beads are called nucleosomes.

Nucleosome

Each nucleosome is composed of DNA wrapped around eight histone proteins. The nucleosome is then wrapped into a 30nm spiral called solenoid.

5 0

3 years ago

Some scientists have proposed that the earliest forms of life may have existed in an "RNA World" where RNA was both the genetic

Ugo [173]

Answer:

(B) The organism lives and replicates despite protease and DNase treatment, but the organism dies when treated with RNase.

Explanation:

DNA is the genetic material in present day organisms while some of the proteins serve as enzymes and catalyze the metabolic reactions.

An organism having RNA with the ability to serve as genetic material would not require DNA to survive. Likewise, if RNA molecules in these organisms also serve as the enzyme, proteins would not be required for survival.

Therefore, when treated with DNase and protease that digest the DNA and proteins respectively, these organisms would be able to survive. However, treatment with RNase enzymes that digest the RNA would kill them as RNA was their biocatalyst and genetic material.

5 0

3 years ago

Chemicals found in all cells that are used for work and growth are

Brilliant_brown [7]

I'm guessing its proteins and glucose??????

8 0

3 years ago