Why are viruses not classified as cells?

1)Viruses are not classified as cells because they lack nucleic acids.
2)Viruses are not classified as cells because they lack proteins.
3)Viruses are not classified as cells because they lack metabolism.
4)Viruses are not classified as cells because their genetic material is always RNA.

Answers

Answer 1

Answer:

viruses are not classified as cells because they lack metabolism


Related Questions

what process is responsible for creating magnetic changes along mid-ocean ridges

Answers

Answer:

Sea floor spreading

Explanation:

The process responsible for creating magnetic changes along the mid-ocean ridges. Sea floor spreading entails the movement of the lithosphere over the weak and fluid asthenosphere. At the spreading center new oceanic crust is created.

The earth is surrounded by a magnetic field. Magnetic minerals in fresh magma orients in the direction of prevalent magnetic field when they begin to cool and solidify.

Due to changes in the magnetic field direction and the upwelling of new magma, the magnetic patterns in a rock changes.

Describe the famous experiment related to gravity that Galileo may have performed. Include the results. Also, state whether the results support the law of gravity. Explain your answer

Answers

Answer:

Galileo performed a famous experiment where he used a ball rolling on a ramp (inclined plane) to study the motion of objects under the influence of gravity. The ramp allowed him to make more precise measurements because the ball moved more slowly along the ramp than if it were simply dropped. Galileo discovered through this experiment that the objects fell with the same acceleration, proving his prediction true, while at the same time disproving Aristotle's theory of gravity (which states that objects fall at speed proportional to their mass). Galileo's conclusion from this thought experiment was that no force is needed to keep an object moving with constant velocity. Newton took this as his first law of motion. One result of the experiment surprised Galileo, and one surprises us. Galileo found that the heavy ball hit the ground first, but only by a little bit. Except for a small difference caused by air resistance, both balls reached nearly the same speed. And that surprised him. According to history, Galileo’s experiment on falling bodies largely contributed to Isaac Newton’s Law of Gravity. In Galileo’s experiment, he is said to have dropped balls from the Leaning Tower of Pisa. The balls were made of the same material but had different masses. Galileo set out to prove that the time it took for these objects to reach the ground would be the same. Galileo proved that objects reached the ground at the same time

Explanation:

I think this is right & I hope this helped

This question is from A P E X please solve it if possible will give brainiest to the correct answer and have a great day :)

Answers

I think the answer is [A]

The primary producer at a deep sea vent would be
A.
spider crabs
B.
chemosynthetic bacteria
C.
tube worms
D.
photosynthetic bacteria

Answers

Answer:

spidercrabs

Explanation:

it is because they live under the sea

A. The answer is A
Hope this helps

Laws have been enacted to regulate cigarette labeling and advertising. What is this an example of?
an impact of changing scientific knowledge on society
the interrelationship of science and technology
an influence of society on scientific progress
the changing nature of scientific knowledge

Answers

Answer:

its a

Explanation:

edge 2020 :)

Laws have been enacted to regulate cigarette labeling and advertising, and this is an example of the influence of society on scientific progress, which is the third option.

What are the cigarette labeling and advertising regulations?

Regulation of cigarette labeling and advertising illustrates how societal concerns can shape the direction of scientific research and policy decisions, for example, concerns about the health effects of smoking and secondhand smoke led to increased scientific research on the topic, which in turn provided evidence to support policy decisions, but it's important to note that scientific research and technological development are not solely driven by societal concerns or values.

Hence, this is an example of the influence of society on scientific progress, which is the third option.

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An igneous rock has small, dark crystals. Which statement also accurately describes this rock?

It is an intrusive rock.
It has a coarse texture.
It was found on Earth’s surface.
It was formed from slow cooling.

Answers

Answer:

c

Explanation:

Answer:

c

Explanation:

How many membrane layers cover the nucleus?
O A. 3
O B. 1
O c. 2
O D.O

Answers

Answer:

nuclear envelope is made is known as nuclear membrane it is covered by two lipids by layerSo answer is 2

what are two organisms in the food web that have a predator-prey relationship? i need examples

Answers

Answer:

Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit. The words "predator" and "prey" are almost always used to mean only animals that eat animals, but the same concept also applies to plants: Bear and berry, rabbit and lettuce, grasshopper and leaf.

Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit.

What do you mean by predator-prey relationship?

In the predator prey relationship, one species is feeding on the other species. The prey species is the animal being fed on, and the predator is the animal being fed. The predator prey relationship develops over time as many generations of each species interact.

Predator and prey populations cycle through time, as predators decrease numbers of prey. Lack of food resources in turn decrease predator abundance, and the lack of predation pressure allows prey populations to rebound.

The relationships between predators and prey play an important role in structuring ecological communities, with predators influencing the dynamics of their prey in ways that cascade through ecosystems.

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What is it called when a oceanic and continental crust come together?​

Answers

Answer:

Ocean-Continent Convergence

Explanation:

Which statement is TRUE about cellular respiration? *

It produces glucose, which provides energy for the cell.
It produces ATP, which stores energy that is used by the cell.
It produces carbon dioxide, which combines with hydrogen to form sugar.
It produces oxygen, which combines with hydrogen to prevent cell poisoning.

Answers

Answer:

It produces ATP, which stores energy that is used by the cell. this is the answer hope it helps you

why is the blood red in color?

Answers

Answer:

human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that's crucial for carrying oxygen through your bloodstream. Heme contains an iron atom which binds to oxygen; it's this molecule that transports oxygen from your lungs to other parts of the body.

Explanation:

H E L P P L E A S E A S A P TwT

Answers

Answer:

B.) Reduction division reduces the number of chromosomes in a reproductive cell...

D.) Fertilization... creates an organism with a new combination of DNA

Explanation:

how does each of your mutations affect the amino acid sequences? Are the mutations missense mutations, silent mutations or nonsense mutations?

a. Point mutation?

b. Frameshift-insertion?

c. Frameshift-deletion?​

Answers

Answer:

the correct answer is B Frame shift insertion

Explanation:

plz give me brainiest

Frameshift-insertion mutations affect the amino acid sequences.

Thus, The insertion or deletion of nucleotide bases in amounts that are not multiples of three is referred to as a frameshift mutation in a gene.

This is significant because a cell reads the genetic code for proteins in groups of three nucleotides.

These so-called "triplet codons" each stand for one of the 20 different amino acids that go into making a protein. This normal reading frame will be disrupted by a mutation, which will result in an inaccurate reading of the entire gene sequence after the mutation.

Thus, Frameshift-insertion mutations affect the amino acid sequences.

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Which continents did the Challenger explore in the late 1800's?

Answers

Answer:

Challenger first traveled south from England to the South Atlantic, and then around the Cape of Good Hope at the southern tip of Africa. It then headed across the wide and very rough seas of the southern Indian Ocean, crossing the Antarctic Circle, and then to Australia and New Zealand.

Explanation:

Hope this helped, Have a Wonderful day!!

can someone help ...​

Answers

I think it’s A because it’s the one that makes the most sense.

Can someone help me?

Answers

Answer:

B

Explanation:

It kind of like a shield for the cell. It controls what goes in and what comes out!

I hope this helps!

Pretty sure its C because it only allows some molecules to pass which not bigger than it

Write two sentences using the vocabulary words above about animal cells:​

Answers

1) Animal cells usually have an irregular shape, and plant cells usually have a regular shape. Cells are made up of different parts

What is the starch indicator, and how does it change?

Answers

Answer:

Starch is a indicator in the iodometric titration and it turns deep dark blue when iodine is present in a solution. The starch under warming condition forms amylose and amyl pectin's which combine with iodine to produce dark blue color. In absence of iodide ion starch indicator is colorless.

Explanation:

Starch is a viable indicator in the titration process because it turns deep dark blue when iodine is present in a solution. When starch is heated in water, decomposition occurs and beta-amylose is produced. Beta-amylose combines with iodine, resulting in a dark blue color change. The iodine-starch test is a chemical reaction that is used to test for the presence of starch or for iodine. The combination of starch and iodine is intensely "blue-black". The interaction between starch and triiodide is the basis for iodometry. In an iodometric titration, a starch solution is used as an indicator since it can absorb the I2 that is released. This absorption will cause the solution to change its color from deep blue to light yellow when titrated with standardized thiosulfate solution. This indicates the end point of the titration. Aside from their basic nutritional uses, starches are used in brewing and as thickening agents in baked goods and confections. Starch is used in paper manufacturing to increase the strength of paper and is also used in the surface sizing of paper. When starch is heated in water, various decomposition products are formed, among which is beta-amylose which forms a deep blue-black complex with iodine. The starch indicator solution must be freshly prepared since it will decompose and its sensitivity is decreased.

Someone please answer this question !!! I’m sorry for spamming but I’m having a panic attack

Answers

Answer:

if you're talking not apart of the theory, it would be b, I believe.

Explanation:

Describe how plants reproduce asexually.

Answers

Answer:

bees who transfer pollen to other flowers

Explanation:

Answer:

Explanation:

Plants have two main types of asexual reproduction: vegetative reproduction and apomixis. Vegetative reproduction results in new plant individuals without the production of seeds or spores. Many different types of roots exhibit vegetative reproduction. The corm is used by gladiolus and garlic. this is googles definition

its biology, help please :) ​

Answers

Answer:

phosphate molecules

fats (I think)

two

PLS EXPLAIN!!!!!!!! If the temperature if the ice-salt mixture decreases, why is the ice melting?

Answers

Answer:

Adding Salt to Ice and Freezing Point Depression ... Salt lowers the freezing point of water via freezing point depression. ... from the salt get in the way of water molecules aligning to crystallize into ice. When salted ice melts, the water can't refreeze as readily because ... Two Methods for Supercooling Water.

Explanation:

Adding Salt to Ice and Freezing Point Depression ... Salt lowers the freezing point of water via freezing point depression. ... from the salt get in the way of water molecules aligning to crystallize into ice. When salted ice melts, the water can't refreeze as readily because ... Two Methods for Supercooling Water. I looked this answer up on the internet. I hope this helps!

Does anyone know this!?

Answers

Answer: The first one

Explanation:

The first one :)




Explanation:

Larger lions have 15,000 kcal on average to expend per day and need to gain more than that to survive. If lions can only hunt less than 3 times per day, explain how lions obtain food with the lowest cost and greatest energy benefit.

Answers

Answer:

warthog

Explanation:

1. Zebra burns too many calories when its hunted

2. Warthog when times 3 times makes 15k calories

3. Wildbeast would exhaust the lion and meerkats wouldnt give it enough calories

Larger lions should hunt on warthog as from hunting these organisms they get more energy as compared to the energy required for hunting. Lions will get 12,000kcal per hunt of a warthog.

What is energy flow?

Energy flow is the flow of energy in an ecosystem through different living organisms. The flow is unidirectional i.e., it starts with the Producers and goes on to the primary consumers and further to secondary consumers in a food chain. Each level in a food chain is known as a trophic level.

Energy flow in an ecosystem follows the 10% law where, only the 10% of the energy present at the previous trophic level is transferred to the next trophic level.

In this question, larger lions needs to hunt for survival and have 15,000kcal energy to expend per day. They need to get maximum energy from hunting less than three times a day. So, by hunting on warthog they expend 5,000kcal of energy and get 12,000kcal per kill. This way they get maximum energy from hunting three warthogs, i.e., 12,000×2 = 24,000kcal from expending 10,000kcal energy.

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What is one cause of muscle soreness and fatigue?

Group of answer choices

Krebs Cycle

Lactic acid fermentation

Alcoholic fermentation

Glycolysis

Answers

i believe it’s lactic acid fermentation! hope this helps

the rate of a chemical reaction is dependent upon?

Answers

Explanation:

Reactions occur when two reactant molecules effectively collide, each having minimum energy and correct orientation. Reactant concentration, the physical state of the reactants, and surface area, temperature, and the presence of a catalyst are the four main factors that affect reaction rate.

hydrophilic vs hydrophobic parts of lipid bilayer & why the location of each makes sense NEED HELP ASAP!!!!

Answers

Answer:

In a lipid bilayer, the hydrophilic part is the head, and the hydrophobic is the tail. This location makes sense because the plasma membrane has a barrier that has a selective permeability so it selects what goes in and what goes out of the lipid bilayer.

HElp I Know it’s Late At nigHt but this is due soon


Remember I NEDD TWO NOT ONE TWO AnSWErS

Answers

Answer:

pretty sure it's a and b

I believe it’s b and d

General is to army as _______ is to body.
A. immune system
B. heart
C. nervous system

Answers

Answer:

nervous system

What happens to a substance when it is heated?

a
Thermal energy is decreased
b
Potential energy is increased
c
Kinetic energy is increased
d
It does not change its physical shape

Answers

Answer: C

Explanation:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster:  the space between atoms increases:   The motion and spacing of the particles determines the state of matter of the substance:  The end result of increased molecular motion is that the object expands and takes up more space.

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