1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MatroZZZ [7]
4 years ago
10

Describe the actual and relative sizes of a virus, a bacterium, and a plant or animal cell.

Biology
1 answer:
anzhelika [568]4 years ago
3 0

Answer :

The animals are categorized into 2 groups - eukaryotes and prokaryotes. The microbes like bacteria are coming under prokaryotes. They are unicellular organisms and without a true nucleus.

Viruses are the connecting link between the living and non - living. They are smaller than bacteria. The microbes less than 100 micrometer can't be seen by the naked eye. They can only visible under a microscope.

Viruses like polio, flu virus sizes are 10nm. But some of the viruses are also less than 10nm. The size of bacteria is 1 micrometer. The viruses are 10 times smaller than the bacteria.

The eukaryotic organisms are more advanced and multicellular. Their cell size is larger than bacteria and viruses. The red blood cells under the light microscope are 8 micrometers. The typical animal cells like sperm are 60 micrometers and a skin cell is 30 micrometers. The plant cell for example pollen is 90 micrometers.

The eukaryotic cells sizes are more than prokaryotes like bacteria.

You might be interested in
The function of antibodies is to A. inject toxins into living pathogens. B. mark pathogenic cells for destruction. C. act as Tol
Liono4ka [1.6K]

Answer:

Mark pathogenic cells for destruction. (Ans. B)

Explanation:

Antibodies are generated by the plasma cells, and once these secreted, they attach quickly to the surface of the toxin and stop the toxin from infecting the normal body cell by blocking key extracellular sites.

Antibodies also help to mark pathogens for destruction by the help of macrophages or neutrophils and they are known as phagocytic cells because they are highly excited to macro-molecules complexed with antibodies.

6 0
3 years ago
Bryophytes are known as non-vascular plants. What makes them non-vascular? Absence of xylem and phloem Inactive xylem and phloem
liraira [26]
Bryophytes are known as non-vascular plants - what makes them non-vascular is the a<span>bsence of xylem and phloem.</span>
6 0
3 years ago
Read 2 more answers
Scientific knowledge is always changing. At one time, the kingdom was the
Naddika [18.5K]

Answer:

D

Explanation:

Organisms can be separated into different classifications due to many differences phenotypically or genetically. As we have progressed, research has shown differences allowing us to see bacteria and archaea as different organisms.

8 0
3 years ago
Read 2 more answers
A widow’s peak is dominant over a straight hairline. The genotypes of the offspring are WW, Ww, ww, and ww.
Gre4nikov [31]
It’s 1 widows peak 3 straight hairline
5 0
3 years ago
The two structures that limit transpiration are known as
hjlf

The two structures that limit transpiration are known as stomata and guard cells.

8 0
3 years ago
Other questions:
  • Part a what is a transitional fossil? what is a transitional fossil? a transitional fossil is in the middle of a direct lineage
    5·1 answer
  • A stroke damages a portion of mr. lewis's temporal lobe. his _____ memory may be damaged as a result.
    13·1 answer
  • Justyn<br> 4. What is the monomer for the lipid polymer?*<br> Enter your answer
    9·1 answer
  • Nausea and vomiting are common complaints during pregnancy. what nutritional action can be used to lessen nausea and vomiting?
    6·1 answer
  • Energy must be transformed in ecosystems because _______.
    13·2 answers
  • 6. Which of the following is a nonmetal?<br> a. Fe<br> b. AI<br> C. N<br> d. Si
    11·2 answers
  • Where does the energy &amp; phosphates come from to create ATP?
    12·2 answers
  • Since Tony does not have PKU, what is the percent chance that he is a carrier
    14·1 answer
  • Which abolitionist or slave was the most productive and helping to end slavery? Explain your answer​
    12·1 answer
  • A child is swinging back and forth on a swing. Changes in her kinetic and potential energy are happening each moment. At which p
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!