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
olga nikolaevna [1]
3 years ago
6

Which cell lacks a nucleus?

Biology
2 answers:
frutty [35]3 years ago
7 0

Prokaryotic cells (like bacteria) are very simple cells. They lack a nucleus, sometimes called the control center of the cell. In prokaryotic (PRO-care-ee-ought-ick) cells, the genetic material or DNA is loose inside and is made of a single loop. The loop is called a plasmid. There are few, if any, organelles, and none are bound by cell membranes. The name prokaryote comes from a Greek word meaning "before nuclei." They are the oldest cells on Earth. These cells divide by simple fission. One cell splits into two identical cells. The germs that make us sick are prokaryotic cells.

Goshia [24]3 years ago
6 0

Prokaryotic cells lack a nucleus.

You might be interested in
Microbial ecology is the study of the relationships between microorganisms and the environment. It is important to understand su
Dimas [21]

Answer:

The microorganism–microorganism or microorganism–host interactions are the key strategy to colonize and establish in a variety of different environments. These interactions involve all ecological aspects, including physiochemical changes, metabolite exchange, metabolite conversion, signaling, chemotaxis and genetic exchange resulting in genotype selection. In addition, the establishment in the environment depends on the species diversity, since high functional redundancy in the microbial community increases the competitive ability of the community, decreasing the possibility of an invader to establish in this environment. Therefore, these associations are the result of a co-evolution process that leads to the adaptation and specialization, allowing the occupation of different niches, by reducing biotic and abiotic stress or exchanging growth factors and signaling. Microbial interactions occur by the transference of molecular and genetic information, and many mechanisms can be involved in this exchange, such as secondary metabolites, siderophores, quorum sensing system, biofilm formation, and cellular transduction signaling, among others. The ultimate unit of interaction is the gene expression of each organism in response to an environmental (biotic or abiotic) stimulus, which is responsible for the production of molecules involved in these interactions. Therefore, in the present review, we focused on some molecular mechanisms involved in the microbial interaction, not only in microbial–host interaction, which has been exploited by other reviews, but also in the molecular strategy used by different microorganisms in the environment that can modulate the establishment and structuration of the microbial community.

Explanation:

8 0
3 years ago
When salts are dissolved in water, they _____.
avanturin [10]
The answer is C. Separate into ions
8 0
3 years ago
Read 2 more answers
*Urgent*
andriy [413]

Answer:

The wheat is consumed by the grasshopper, the grasshopper is consumed by the frog, and the frog is consumed by the snake.

Explanation:

A food web is a model that can be used to better understand the feeding relationships between organisms in an ecosystem. Arrows in a food web start at a food source and end with the consumer.

So, in the food web shown in the question, the wheat is consumed by the grasshopper, the grasshopper is consumed by the frog, and the frog is consumed by the snake.

8 0
3 years ago
Read 2 more answers
In Texas, paddlefish are
elixir [45]

Answer:

The answer is an endangered species.

Explanation:

Paddlefish are now listed as a Texas threatened species and it is illegal to catch, kill, or harm a paddlefish in the state’s waters.

3 0
2 years ago
How is accelerating different to speed?
marysya [2.9K]
Acceleration/ accelerating is how you are increasing speed. Speed as a whole is how fast something goes, acceleration is how something’s speed increases and by how much.
3 0
2 years ago
Read 2 more answers
Other questions:
  • The universe tends to move to a state of entropy or A: disorder B: organization C: mediocrity
    12·3 answers
  • The development of the ________ is particularly dependent on adequate consumption of fat during the toddler years.
    7·1 answer
  • Marine Biology question
    13·1 answer
  • 20.
    12·1 answer
  • Draw a simple sketch of a red blood cell in an isotonic solution. Label the inside and the outside of the cell with the correct
    7·1 answer
  • There are several different types of symbiotic relationships. In this case, a tick attaches to an animal and feeds on its blood.
    13·2 answers
  • Provide 3 points of interest about translation of the cell.
    7·1 answer
  • Why is it problematic when water sample data is not made public for days?
    11·1 answer
  • What are the two main structures of carbohydrates in living things? I’m so confused pls help
    13·1 answer
  • True or false: We have the same number of chromosomes as mosquitoes
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!