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Tamiku [17]
2 years ago
9

A student uses a microscope to look at cells from a tree leaf and a fingernail. Which structure will the student see in the tree

leaf cell that is not in the fingernail cell? A. mitochondria B. cilia C. cell wall D. ribosomes
Biology
2 answers:
Ahat [919]2 years ago
6 0
I believe it would be D but I'm not really that sure my strongest opinion is on D.
Kazeer [188]2 years ago
3 0

Answer:

Option C cell wall

Explanation:

Cell wall is only found in plant cell. A cell wall is to provide structural support, filtering and also protection to plant cell. Since the cell from fingernail is not a plant cell and therefore the cell wall is not available. The rest of the organelles in the options such as mitochondria, cilia, ribosomes can be found in the cells from a tree leaft and a fingernail.  

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what function does the limb serve in each animal? how are the limb bones of the four animals similar? based on these similaritie
slamgirl [31]

Answer:

The humans use this limb to grab things, body language, and sign language.

The dogs use this limb for all kinds of weight-bearing activities like walking, jumping, running et cetera.

Birds use this to fly and whales use it as flapper.

The limbs of all these four animals are the example of homologous organs that is, they all are similar in structure but adapted to perform different functions during the course of evolution.

For example, in all four organisms, the limb is made up of the same set of bones such as humerus, radius, ulna, carpals, metacarpals, and phalanges.

Homology in structure shows that they must have evolved from a common ancestor and diverge to perform different functions as an adaptation to the contrasting environment.

4 0
2 years ago
Read 2 more answers
Megan examines a liver cell and observes an organelle with many smooth-
natulia [17]

Answer:

Processing and packaging of cellular materials prior to export

Explanation:

Our cells contain many different organelles. Every organelle has its own function, just like every organ in our bodies.

The Golgi apparatus is one of these organelles. It can be found in most eukaryotic cells. Its purpose is to transport, modify, and package proteins and lipids before they're delivered to other parts of the body. This is the function the organelle with smooth-sided channels Megan is observing would need to perform in order to be identified as the Golgi apparatus.

3 0
2 years ago
You are a researcher working on a treatment for Hutchinson-Gilford progeria syndrome, an extremely rare genetic disorder that ca
Alexus [3.1K]

Answer:

If predominantly, we can't say of any treatment for progeria, aside from the routine observation of heart and blood vessel (cardiovascular) disease which is important in taking care of the health situation in the affected kids. Treatment relies majorly on the situation and clinical manifestations of the kid. At first, in 1999, the findings of the initial clinical drug trial for kids with an unusual rapid-aging disease, often referred to as Progeria, revealed positive results with a farnesyltransferase inhibitor (FTI), a drug initially designed to treat cancer.

The PATHWAY in gene expression to be TARGETED is progenin formulation---

The Progeria-forming mutation results in the formation of the protein progerin that disrupts the cell activities. Some areas of progerin's toxic impact on the body is due to the formation of a farnesyl group, Â that adheres to the progerin protein aiding it's disruption of the body's cells. FTIs means of action is through inhibition of the adhesion of the farnesyl group to progerin, decreasing the hazardous substances that leads to progerin.

The genetic medicine technique that acts as.an intervention tool gene therapy to regulate the gene that causes the stimulation and formation of the protein progenin.

Escalated cardiovascular disease results in death in the case of Progeria.

It's worthwhile to note that if the basic blood vessels can with time get better as a result of treatment, the treatment shows positive results. Slowing down stroke and aging manifestations will boost the chances of treatment.

5 0
2 years ago
Rosita Sanchez is 2 months pregnant, and she and her doctor are worried because her rash was diagnosed as __________. They are c
kirill115 [55]

Answer:

Rubella

Explanation:

Rubella is a viral disease caused by the infection of Rubella virus. Some signs and symptoms of this disease are as follows -

  • A rash which begins on face and later spreads all over the body
  • Low fever
  • Swollen glands
  • Aching joints
  • Joint pain

As in the question, the doctor found rash on the body of patient, it was diagonised as Rubella, so the doctor was worried because it can affect the development of her child.

6 0
2 years ago
An amoeba, an oak tree, a squirrel, and mildew are all classified in the same:
irina1246 [14]
Domain (Specifically domain Eukarya)
5 0
2 years ago
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