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
Ugo [173]
3 years ago
11

Which one of the following is NOT a characteristic of eukaryotic cells?

Biology
2 answers:
timurjin [86]3 years ago
5 0

Answer:Have membrane-band organelles.

Explanation:

olasank [31]3 years ago
5 0
Make up bacteria cells. Bacteria cells are less complex and made up of prokaryotic cells.
You might be interested in
What must first form before plants can colonize new land?
serious [3.7K]

Answer:soil

Explanation:

6 0
3 years ago
Shell-builders use calcium carbonate molecules (CaCO3) to build their shells. Which of the choices above could be a source for t
Fudgin [204]

Answer:

The question is incomplete, the correct question is;

Shell-builders use calcium carbonate molecules (CaCO3) to build their shells. Which of the following choices could be a source for the carbon atoms in the calcium carbonate (CaCO3) molecules?

respiration by organisms such as plants, animals and microbes

burning coal

calcium ions

car exhaust

wildfires

Answer is all of the above options except calcium ions.

The source for the carbon atoms in the calcium carbonate (CaCO3) molecules include respiration by organisms such as plants, animals and microbes , burning coal , car exhaust  and wildfires.

Explanation:

Shell-builders (coral, oysters, lobsters, sea urchins, phytoplankton) utilize calcium carbonate molecules (CaCO3) to build their shells. The respiration process by organisms such as plants, animals and microbes, burning of fossil fuels, vehicle exhaust, wild fire etc produces carbon dioxide (CO2) and release it into the atmosphere. Oceans absorb carbon dioxide in the air by diffusing and dissolving it into the surface water. The amount of CO2 that dissolved in the water depends on concentrations of CO2, temperature of the water, wind, etc.

Phytoplanktons (microscopic, one-celled organisms) also bring carbon into the ocean from the air through photosynthesis, where they convert the carbon dioxide and water into glucose and other carbon compounds. These carbon compounds are consumed by the marine organisms and some carbon eventually ends up in deep seafloor sediments. The other processes which involved in the transfer of carbon from the air into deep seafloor sediments include photosynthesis , decomposition , waste products, etc.

The CO2 dissolved in the ocean combines with water molecules to produce carbonate (CO3-) ions, which then combine with calcium ions in the seawater to form calcium carbonate (CaCO3). This calcium carbonate is used by shell building organisms to build their shells, plates, inner skeletons etc.

8 0
3 years ago
which question to scientist need to asnwer to determine whether CRISPR can be used tofight a new bacterium that is resistant to
QveST [7]

Answer:

hiiurdfbjjjjkhdgyrfjpgtzy99f3w8

7 0
2 years ago
Read 2 more answers
What is an outcome of lack of oxygen?​
siniylev [52]

Answer:

Brain cells are very sensitive to a lack of oxygen. Some brain cells start dying less than 5 minutes after their oxygen supply disappears. As a result, brain hypoxia can rapidly cause severe brain damage or death.

Explanation:

Other symptoms can include: hallucinations and delusions; increased agitation and confusion; depression and other mood disorders; personality changes, such as irritability and a reduced threshold for frustration; and an inability to focus or concentrate.

4 0
3 years ago
Read 2 more answers
With declining death rates and the availability of disease-fighting medications and world organizations willing to distribute th
andreyandreev [35.5K]

Answer:

<em>Overall population growth will continue to grow.</em>

Explanation:

History shows that in the past, as the field of science and technology was not much advanced, hence many epidemic diseases caused a decline in the population of humans over time.

But now, advances in the field of science and technology has led to the cure of many diseases. The factors such as famine which killed humans in the past are not likely to occur in today's world. Hence, the population will tend to grow and the death rate will decline.

7 0
3 years ago
Other questions:
  • Choose the true statements concerning animal versus human blood from the list below i. human blood contains red blood cells, whi
    13·1 answer
  • Why is fermentation such an important process in cells?
    15·2 answers
  • Which structure is altered by emphysema
    13·1 answer
  • Which statement describes the reaction for cellular respiration?
    14·2 answers
  • What is the correct way that the scientific name for the american black bear should appear in print?
    7·1 answer
  • What are two social factors that affect population growth?
    12·1 answer
  • What are the two uses of energy produced by respiration in the plants
    6·1 answer
  • Do you believe that some people have the extrasensory perception (ESP)?<br><br> Why or why not?
    6·1 answer
  • Why are advantageous traits more likely to be passed onto offspring
    13·1 answer
  • 1. What does H.I.P.P.O. stand for? Habitat destruction, Invasive species, pollution, population Increase and
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!