Why are viruses considered to be nonliving?


A. They have no genetic material.


B. They cannot reproduce without a host cell.


C. They do not respond to their environment.'


D. They cannot use energy.

Answers

Answer 1

Answer:

B. They cannot reproduce without a host cell.

It is considered to be nonliving as it cannot reproduce on its own.

Explanation:

Without a host cell they are unable to reproduce as it does not have the necessary reproductive tools.

It reproduces by using the host cell's reproductive tools by taking control of it.

Viruses also don't need energy as living organisms do. So the answer may be D. as well.

Answer 2

Viruses are considered to be non-living because they cannot reproduce without a host cell.

WHAT ARE VIRUSES?

Viruses are organisms that are incapable of reproducing without a living host.

Viruses can only make use of the mechanism of a living host, which they infect.

Viruses are structurally made up of a genetic material and a protein capsule.

Therefore, it can be said that viruses are considered to be non-living because they cannot reproduce without a host cell.

Learn more about viruses at: https://brainly.com/question/3122852


Related Questions

Why Kiwi(Bird in NZ) doesn't fly?

Answers

It’s wings are too small and it’s body is to fat

Answer:

Their wings are vestigial, as the kiwi birds are descended from flying ancestors.

Explanation:

Their pectoral muscles are not anchored to the breast bone in a way that enables them to fly, and their wings are very small and underdeveloped meaning they wouldnt be able to gain lift with them.

An object of the same mass has three different weights at different times. Which statement is possible? The object gains matter and then loses it. The object started on Earth, was transported to space, and was deposited on the moon. The object started at the bottom of a hill, then moved to the top of the hill, and then moved back down to the bottom of the hill. The object changes shape, which changes its weight.

Answers

Explanation:

Hey, there!!

The possible reason is option no. b.

Because

for the first option its absolutely wrong. For the second option there is variation of gravity in different places so, the weight differes. (as w= m.g)For the third option, the weight changes when the object is kept at top at once and low at once but for the third time again the object is replaced at same place. so, it only gives two different weights.4th option is incorrect.

so, i think the answer is option B.

the answer has to be b

why do we use directional terminology in anatomy

Answers

Answer:

Directional terms such as anterior and posterior are essential for accurately describing the relative locations of body structures.

Explanation:

Understanding terminology ensures doctors and technicians have a shared method of communicating, which helps to avoid confusion when pinpointing structures and describing locations of lesions. Knowing your directional terms makes things clear and saves time!

Does anyone know this this animal is. my Francis is a praying mantis but I’m not sure

Answers

It looks like a black praying mantis...
Yea I would have to say praying mantis, do a google picture search to double check!:)

In order for a pea plant to show a recessive trait, what alleles must be present?

A. two dominant alleles

C. one dominant and one
recessive allele

B. two recessive alleles

D. none of the above

Answers

the answer is B since the dominant trait would over power the recessive trait won’t show in the pea plant unless it has two recessive
The answer is b.) two recessive alleles.

Explanation: if there is a dominate allele and a recessive it is going to show the dominate 100% of the time. The only time a recessive trait is going to show is if there is not a dominate present and it is just 2 recessive traits.
Hope this helps!

Consider the overall shape of this cell.
Which geometric solid is the best model for these cells?
O A. A square pyramid
B. A right circular cylinder
O c. A sphere
X
D. A cube
It’s not D

Answers

Answer:

B. a right circular cylinder

The right answer would be B

The idea that layers of sediment are always deposited horizontally is called_____.


answer here

Answers

Answer:

original horizontality

Explanation:

The Principle of Original Horizontality states that layers of sediment are at first deposited horizontally below the movement of gravity. It is a relative relationship technique. The precept is critical to the evaluation of folded and tilted strata.

Which of the following is a specific variant of a character? A.) A Class B.) A Trait C.) A Species

Answers

Answer:

B.) A Trait - pls mark brainiest

Explanation:

A phenotypic trait, simply trait, or character state is a distinct variant of a phenotypic characteristic of an organism; it may be either inherited or determined environmentally, but typically occurs as a combination of the two.

It is answer B. It is A Trait

how do photosynthesis start

Answers

Answer:

photosynthesis is the process plants use to make its food. plants absorb carbon dioxide from animals and turn it into carbon compounds to make glucose. photosynthesis is the basic process whereby carbon dioxide plus water is converted to glucose and oxygen

Photosynthesis starts by the plant absorbing sunlight.

Please give brainliest :)))

Before Pasteur's experiments with beef broth and S-shaped tubing, what did
people think about cells?
O A. Cells could generate spontaneously.
O B. Cells differentiate from stem cells.
O C. Cells came from preexisting cells.
O D. Cells do not contain a nucleus.

Answers

Answer:

A. Cells could generate spontaneously

Explanation:

The theory of spontaneous generations is a hypothetical theory, which states that living organism originate from the non-living matter

A cells could generate spontaneously

Select the correct answer from the drop-down menu.



After getting the slide and microscope ready, Stella is eager to see the microscopic pond



water specimen! She crouches around her microscope and aligns her eye with the



microscope's eyepiece. But she's only able to see a bright white light.



At this point, no specimens or cells are visible on Stella's pond water slide. After taking a



moment to collect her thoughts, Stella realizes she can't see any lifeforms because

Answers

Answer:

the microscope is not in focus

Explanation:

Stella was only able to see white light through the eyepiece because the microscope is not in focus. She is supposed to bring the microscope into focus by using the coarse adjustment knob in conjunction with the fine adjustment knob. Both knobs are adjusted till the specimens or cells in the pond water present on the slide become visible through the microscope's eyepiece.

She was only able to see white cells and from the pond but she can’t see antithetical cells

stion 6/48which would be the best evidence that a cell is using active transport to move a substance across its cell
membrane?
A) Substances are moving rapidly across the cell membrane.
B) ATP is being rapidly consumed near the cellular membrane.
C) Substances are moving from high to low concentrations.
D) Substances are moving through channels in the cell membrane.

Answers

Answer:

B) ATP is being rapidly consumed near the cellular membrane.

Explanation:

Active transport is a form of transport used by living systems in which substances/molecules move across a membrane from a region where they are less concentrated to a region where they are highly concentrated. This movement occurs against the concentration gradient, hence it requires energy in form of ATP in order to occur. The transport is said to be "ACTIVE" if it is energy consuming.

Hence, based on the explanation above, the best evidence to showcase the occurrence of active transport in a cell is the rapid consumption of ATP near the cellular membrane. ATP will be used to pump needed substances into the cell via the cell membrane, serving as the semi-permeable membrane.

It has to be A because active transport happens faster than passive transport.

As Earth’s climate changes over time, so will its energy budget. One possible effect of a changing climate is changes to cloud cover. If the amount of cloud cover on Earth were to decline, what effect could that have on the amount of energy absorbed by land and oceans?

Answers

Answer:

The amount of energy obsorbed by the ocean and land would increase.

Explanation:

Clouds reflect energy from the sun back into space. If there is more cloud cover than there is less energy reflected therefore more is obsorbed.  

Answer:

Of the Sun’s energy, 23% is either reflected or absorbed by clouds. If cloud cover declined, the amount of energy absorbed by land and oceans would increase.

Explanation:

PLATO ANSWER

What is the ratio of surface area to volume for a sphere with the following
measurements?
Surface area = 432 m2
Volume = 864 m3
O A. 0.02 m 1
B. 0.2 m 1
X
C. 0.05 m 1
O D. 0.5 m 1
It’s not C

Answers

Answer:

Answer in d 0.5

It’s D 0.5!!!!!!!!!!!!!!!

Most energy enters ecosystems in the form of sunlight,

Please select the best answer from the choices provided
T
F

Answers

Answer:

TRUE, most energy enters ecosystems in the form of sunlight

Answer: True
Sunlight is what helps the producers produce.

Why do rice plants include starch and protein in their seeds

Answers

A single gene could be inserted into a plant's genome, enabling specific traits to be expressed easily. Scientists have identified genes for two enzymes needed to make pro-vitamin A. One of these genes comes from corn.
Rice seed storage protein (SSP) is an important source of nutrition ... Several starch-

A person named X and Y doesn't have a 'D-cell' on her body.
and X and Y got married, and they bore a son called 'Z'.
then, could Z have a D-cell on his body?

Answers

No because X and Y do not have D-cell
No because x and y both don’t have d-cells

What does the term "limiting
nutrient" mean when
referring to nitrogen?

A. Nitrogen does not control the rate
productivity in an ecosystem.

B. Nitrogen controls the rate of
productivity within an ecosystem.

C. Nitrogen is limited, so it is reserved
especially for bacteria.

Answers

Answer:

B. Nitrogen controls the rate of productivity within an ecosystem.

Explanation:

The answer is B: Nitrogen controls the rate of productivity within an ecosystem.

After winning power, the Jacobins sought strong leadership to face overwhelming challenges by asking for direction from England’s political leadership. deciding to form the Committee of Public Safety. using the leadership of former supporters of the monarchy. using the leadership of former supporters of the Church.

Answers

Answer:

It’s b

Explanation:

After winning power, the Jacobins sought strong leadership to face overwhelming challenges by deciding to form the Committee of Public Safety.

What is the Committee of Public Safety?

It should be developed by the National Convention in the year 1793 for defending the nation that should be against the foreign and the domestic enemies.

Also, it oversees the new functions of the executive government.

Therefore, we can say that it helped to decide to create the Committee of Public Safety.

Learn more about safety here: https://brainly.com/question/17914613

The graph shows how temperature relates to altitude. Which two statements are supported by the data in the graph?

Answers

Here, we can see in the given picture, The lowest temperature was observed in the Mesophere layer. The temperature is gradually decreasing from 0°C to -100°C(approx.) as the altitude increases. So we can say that,

Appropriate Answer:-

The mesosphere tends to get colder at higher altitudes.

[tex] \Large{ \underline{ \boxed{ \bf{ \blue{ Option \: A}}}}}[/tex]

Rest options are not correct because of the wrong observation and reason provided which are matching to the predictions made from the picture.

━━━━━━━━━━━━━━━━━━━━

Answer:

The temperature in the thermosphere increases because the Sun’s ultraviolet and x-ray radiation are absorbed here.

Explanation:

This is the second statement that is supported by the literature, but cannot be seen via the graph, so make certain that you select this answer as well. The question requires that you select TWO statements supported by the graph data.

xam
Which of the following is
considered a producer?

A. algae

B. bacteria

C. deer

D. a cow

Answers

Answer: A.)algae

Algae is a producer just like grass etc.

What kingdoms of life can have either sexual or asexual reproduction

Answers

Answer:

Protista, Fungi, and Plantae.

Explanation:

PROTISTA - asexually with binary fission , and sexually; two individuals join and exchange genetic material in the nucleus.

FUNGI - Reproduce sexually and asexually.

PLANTAE - Sexual reproduction involves the male pollen grains traveling to the stigma of a flower , and asexual reproduction involves the production of a new plant without the use of flowers.

Answer:

Plantae, protista, and fungi

Explanation:

took the test and got it right! Good luck and God bless you!

Mutations can be the cause of
some
A. altered proteins
B. genetic disorders
C. Both a and b are correct.

Answers

the answer would be b genetic disorders

I would say your answer is C.

Mutations contribute to genetic variation within species. Some mutations affect the gene that instructs the building of a protein. So mutations can cause altered protiens AND genetic disorders.

Which feature is not the result of a glacier carving out rock as it moves?

A. Cirque

B. Terminal moraine

C. Fjord

D. Horn peak

Answers

Answer:

B. Terminal moraine

Explanation:

Terminal moraine forms at the end of a glacier due to contact abrasive action of the rocks. The glacier carving out rock as it moves doesn’t occur in the terminal moraine.

The Cirque, Horn peak and Fjord are all processes characterized by the glaciers carving out rocks as they are moved by elements such as wind and water.

The answers is









Terminal moraine

When nuclear fusion begins, what can be said about the internal processes within that star?

Atoms in the star begin to split.
Atoms in the star begin to combine.
The star is turned into a nebula.
The star is turned into a blue giant.

Answers

Hi there! Hopefully this helps!

--------------------------------------------------------------------------------------------------------

The answer to your question is the second sentence:

Atoms in the star begin to combine.

Answer:

Atoms in the star begin to combine.

Explanation:

The first correct answer will be marked as brainliest

Answers

Answer:

the second red dot

Explanation:

Answer:

The upper right red circle.

Explanation:

This area is shows Minnesota to Lake Michigan, which is the largest body of water shown. The upper right red circle is the closest circle to Lake Michigan. As weather is deeply linked to weather systems, the area closest to a large body of water will experience the most devastating effects.

What are some functions of calcium?

Answers

Calcium is one of the most important minerals for the human body. It helps form and maintain healthy teeth and bones.
...
Function
-Building strong bones and teeth.
-Clotting blood.
-Sending and receiving nerve signals.
-Squeezing and relaxing muscles.
-Releasing hormones and other chemicals.
-Keeping a normal heartbeat.
To make the teeth stronger .
To make bones strong

The lungs are
to the heart.
O Anterior
O Distal
Lateral
Superior

Answers

Answer:

LATERAL

Explanation:

The diaphragm lies inferior to the heart. Away from the mid line of the body. The lungs lie lateral to the heart. ... The heart lies medial to the lungs.

HOPE I HELPED

PLS MARK BRAINLIEST

DESPERATELY TRYING TO LEVEL UP

       ✌ -ZYLYNN JADE ARDENNE

JUST A RANDOM GIRL WANTING TO HELP PEOPLE!

                                      PEACE!

The answer is Lateral!!!!!

Which of the following bonds is an attraction between atoms of different molecules?

Answers

Answer:

pretty sure its covalent bond

Explanation:

Ionic because it’s between a metal and nonmetal elements

Drag the tiles to the correct boxes.to.complete the.pairs, Match the images with the stages of a mosquito's life cycle

Answers

Answer:

Explanation:All mosquito species go through four distinct stages during their life cycle: Egg - hatches when exposed to water. Larva - (plural: larvae) "wriggler" lives in water; molts several times; most species surface to breathe air. Pupa - (plural: pupae) "tumbler" does not feed; stage just before emerging as adult.

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