20 points
Cells are classified as prokaryote and eukaryote. If a cell has no nucleus
and no membrane bound organelles, as mitochondria and chloroplasts,
then it is classified as *
A.Eukaryote
B.Prokaryote
C.Endosymbiosis
D.both a and b

Answers

Answer 1

Answer:

B. Prokaryote

Explanation:

Because it does not have a well defined nucleus and bound organelles

Answer 2

Answer:

B

Explanation:

A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle.In prokaryotes, the DNA (chromosome) is in contact with the cellular cytoplasm and is not in a housed membrane-bound nucleus. ... Throughout the course of evolution, organelles such as mitochondria and chloroplasts (a form of plastid) may have arisen from engulfed prokaryotes.


Related Questions

Which of the following does not describe a source of greenhouse gases?
Steam of fossil fuels
Burning of fossil fuels
Freezing of permafrost
Emissions from landfills

Answers

Answer:

i think its C) Freezing of perma frost

Explanation:

The option that does not describe a source of greenhouse gases is the freezing of glaciers. Thus, the correct option is C.

What are greenhouse gases?

Greenhouse gases may be defined as those gases that are present in the earth's atmosphere and trap the heat and radiation from the sun and emitted toward the earth.

Such greenhouse gases are responsible for the greenhouse effect that ultimately leads to global warming.

Steaming and burning of fossil fuels and emissions from landfills extremely liberated the high amount of carbon dioxide in the atmosphere which is one of the most potent greenhouse gas.

Therefore, the option that does not describe a source of greenhouse gases is the freezing of glaciers (hailstone). Thus, the correct option is C.

To learn more about Greenhouse gases, refer to the link:

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in a species of mice, short hair is dominant to long hair. if a short-haired individual is crossed with a long-haired individual and both long- and short-haired offspring result, one can conclude that

Answers

Answer:

the long haired trait was the dominant trait and the short haired one was the recessive trait

Explanation:

in a species of mice, short hair is dominant to long hair. if a short-haired individual is crossed with a long-haired individual and both long- and short-haired offspring result, one can conclude that the long haired trait was the dominant trait and the short haired one was the recessive trait

How can you tell that the rock, Diorite, is intermediate?

Answers

Answer: You can tell that this rock has roughly an equal abundance of white and black minerals. If you click to zoom, you will see only one feldspar and no quartz.

What will happen to a population of organisms that are in an oxygen rich environment. (Double click the story board to draw on it) ​

Answers

Answer:

it will disolve

Explanation:

the contractile organelle of skeletal muscle fibers is

Answers

Answer:

The myofibrils are the contractile organelles in the muscle fibers.

Any information about Bird DNA?
trying to find stuff but no one tells me anything...

Answers

Answer:

hmm sounds like the FBI is hiding something from you

Explanation:

Answer:

look it uo

Explanation:

with that question you are better off just looking it up

The table below shows some of the ingredients in the four different drinks. Which of these drinks would give an athlete the most energy we litre

Answers

Answer: 2

Explanation: the numbers add up to make the highest number

how necessary is it for us to know about earthquakes, its nature, its effect, and its origins?

Answers

Answer:It’s important for us to know about earthquakes, so we’re prepared for them.

Explanation: For example, knowing where to hide or how to protect your body will prepare you for this dangerous event.

autorhythmic cells can generate action potentials spontaneously because they have

Answers

Answer:

Unstable membrane potentials

Explanation:

which of these features is found in a lumbar vertebra?

Answers

Answer: All of the choices are correct

Explanation: Just do it I got it correct

How is a cruise ship like a cell? Name the organelles that have a similar function to the parts of a cruise ship.

I’ll give brainliest, thanks and 5 stars to the answer that stated all the organelles that are similar in function to the parts of a cruise ship.

Answers

Answer:

Nucleus - Controlls like the Captin or the control center of the ship

Ribosome - People that make the ship run

Vacuole - Rooms for guests to stay in.

Cytoplasm - Floor for people to walk on

Cytoskeleton - Walls of the ship (this could also be Cell wall)

Mitochondria - The fuel source

Endoplasmic Reticulum - It's a highway so maybe the halls or any main point on the ship where alot of people are.

3. Which of the following resembles a hypothesis?
Joe witnesses a shooting star and makes a wish.
Shen wonders how shooting stars form in outer space.
Rodney claims that shooting stars burn from entering Earth's atmosphere.
Jane researches how much friction causes combustion.

Answers

Answer:

Rodney claims that shooting stars burn from entering Earth's atmosphere.

Answer:

Rodney claims that shooting stars burn from entering earths atmosphere

Explanation:

Where do daughter cells come from

Answers

Answer:

Parent cell

Explanation:

When a single parent cell divides, It creates two daughter cells. Hope this helps you!

What was the optimum temperature for bromelain activities?

Answers

I think it might be like 122°F or 50°C but not completely sure

The change in t between pH 6 and pH 7 must involve_________ of a proton in the active site. The best candidate is _______. The increase in Km at higher pH must involve a change in the binding site. The group involved is probably the ________ at Ile 16, created by the cleavage that activates chymotrypsin.
N-terminus
gain
His 57
Asp 102
C-terminus
Ser195
loss

Answers

losa ser ibmas que me dijiste que

why do histone genes have a very slow molecular clock?

Answers

Answer:

The structure of the histone gene must be conserved for DNA to function properly.

Explanation:

:)

A scientist looks into a microscope and sees that chromosome pairs are in bipolar
tension. Which mitotic phase is the scientist likely witnessing? (1 point)
O metaphase
O anaphase or telophase
O prophase or metaphase
o anaphase

Answers

Answer:

metaphase

Explanation:

I took the test, it's right.

Answer:

metaphase

Explanation:

1.anaphase

2.telophase

3.anaphase

4.mitosis

5.metaphase

hope this helps:)

A block of wood has a mass of 120 g
and a volume of 200 cm3. What is the density of
the wood?

Answers

Answer:

0.6 cm3

Explanation:

D=mass/volume

D=120g/200 cm3

D=0.6 cm3

. What does the term mutation mean in regards to human genetics?

Answers

Answer:

A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing raditation, exposure to chemicals called mutagens, or infected by viruses.

Explanation:

A mutation is a change in a DNA sequence.

where is most of the energy stored within an atp molecule?

Answers

Answer:

Adenosine Triphosphate

Explanation:

A spacecraft can travel 20km/s how many km can this spacecraft travel in 1 hour?

Answers

Answer:

This spacecraft can travel

[tex]72000km[/tex]

I do not understand this. It is about "Membrane Transport".

Answers

Osmosis is taking place?

need an answer quick!!


bio


will give brainliest to correct answerer

Answers

Answer:

yy

Explanation:

If the yellow flower genotype is the dominant trait ( Y ), then the white flower has to not contain 'Y'

Hopefully this helps!

Brainliest please?

C. yy is the correct answer

to which part of a dna molecule are nucleotides added?

Answers

Answer:

Nucleotides are exclusively added to the 3' end of the developing strand when DNA is produced in the 5'-to-3' orientation. The 5'-phosphate group of the new nucleotide attaches to the 3'-OH group of the final nucleotide of the developing strand.

At the 3' end of the deoxyribose sugar, an upcoming nucleotide is added. The existing nucleotide's 3'-OH end and the new nucleotide's 5' phosphate make a phosphodiester bond. In this way, new nucleotides are added.

 

How does DNA polymerize?

The DNA is made up of nucleotides. Each nucleotide of DNA is made up of a deoxyribose sugar, a phosphate group, and a nitrogenous base. Nitrogenous bases include adenine, guanine, cytosine, and thymine. The sugar of the DNA has a lack of oxygen at the 2' end. A glycosidic bond connects the sugar's 1' end to the nitrogen base.

The 5' end of sugar is attached to the phosphate group. The 3' end of sugar is attached to the 5' phosphate of the new upcoming nucleotide. A phosphodiester bond is formed during the addition of new nucleotides. Two phosphate groups of the new nucleotides are removed. Example: If ATP comes, then it will make AMP and attach to the DNA chain.

Hence, at the 3' -OH end of sugar of the existing nucleotides, a new one is added.

To learn more about the DNA,  refer to the following link.

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what dictates the structure of a protein molecule synthesized by the body?

Answers

Answer:

The DNA inside the cells nucleus.

Explanation:

what is the highest level of organization that ecologists study?

Answers

Explanation:

Biosphere. It is the highest level of organization. It is the global ecological system which consists of all the living organisms and other factors which supports life.

which gas is cycled into the atmosphere at the arrow?

Answers

Answer:

oxygen

Explanation:

what are 4 cellular activities that would require the energy of ATP?

Answers

Answer:

active transport (moving particles against the concentration gradient)making proteinscell division (for growth and repair)transmission of nerve impulses

Hope this helps!

ATP is the energy currency of the cell and it is required almost everywhere. 4 cellular activities that would require the energy of ATP will be cellular respiration, ion transport, muscle contraction, nerve impulse.

What is the role of ATP ?

The role of ATP is providing energy where it  gets hydrolysed into ADP along with the phosphate ion where the reaction provides energy and this reaction brings about energy in the activity.

The cellular activities are the activities that take place inside the cell and various activities that will link to them in order to perform various functions. DNA synthesis, biochemical reactions, cellular respiration, cellular activities all takes place with the help of ATP.

Therefore, ATP is required almost everywhere in both cellular respiration activities and cellular activities.

Learn more about cellular activities at :

https://brainly.com/question/28030433

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Acidic rainwater dissolving rock is an example of
A. oxidation
Bicarbonation
C.hydrolysis
D. salt wedging

Answers

Explanation:

oxidation bicarbonation

what physical feature of dna is affected by the pairing of purines with pyrimidines?

Answers

Answer:

Its width.

Explanation:

The size of pyrimidines and purine is different because each group has a different structure (1 or two rings). Therefore, the width of DNA is "constant".

If we would pair two pyrimidines or two purines, the width of DNA would be different in both cases.

Hope this will help :)

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