Which best describes the cell theory?

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Scientists know all there is to know about cells, so the cell theory will not change.

As technological advancements are made, the cell theory may change.

A theory, once formulated, cannot be changed.

The development of a synthetic cell has caused the cell theory to change.

Answers

Answer 1

Answer:

As technological advancements are made, the cell theory may change.

The technological advancement can lead to new discoveries, which may or may not support the existing cell theory. There are many evidences present in the past, in which the technological advancement has proved the theory incorrect or needs to be modified. So, every theory can change over time due to the new discoveries and the researches.

Explanation:


Related Questions

what is glucose???????????

Answers

Answer:

end product of carbohydrate digestion

also known as sugar

the end product of photosynthesis

Explanation:

It is a sugar substitute that gives important energy source to living organisms its aswell a component of carbohydrates.

Select the correct answer.
In which process are fossils formed by the compression of dead organisms over time?



A.
carbonization
B.
extinction
C.
mineralization
D.
radioactivity

Answers

Answer:

A

Explanation:

Answer:

a

Explanation:

the antimicrobial drugs with the broadest spectrum of activity are:

Answers

The antimicrobial drugs with the broadest spectrum of activity are tetracyclines.

Omitted options are

A) aminoglycosides.

B) chloramphenicol.

C) penicillin G.

D) macrolides.

E) tetracyclines.

Antimicrobial spectrum of an antibiotic is defined as  the range of microorganisms that can be kiiled or inhibited by  Antibiotics

Based on this spectrum, Antibiotics are divided into

broad-spectrum antibiotics, extended-spectrum antibiotics narrow-spectrum antibiotics

Now, broad-spectrum antibiotics are those antibiotics that can kill or inhibit  a wide range of microorganisms which contains the Gram positive and negative bacteria, Examples include  Ciprofloxacin, Doxycycline, Minocycline, Tetracycline, Imipenem, Azithromycine.

Extended-spectrum antibiotics are those antibiotics that can kill or inhibit majorly Gram positive bacteria and small amounts of  Gram negative bacteria. example, Ampicillin.

Narrow-spectrum antibiotic can only kill or inhibit very minute species of bacteria. Example includes, Sarecycline, Vancomycin, Isoniazid.

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state five importance of diffusion in plants and animals​

Answers

Answer:

Diffusion is important to cells because it allows them to gain the useful substances they require to obtain energy and grow, and lets them get rid of waste products.

Importance of diffusion to living organisms.

Substance required by cell Waste product of cell

Glucose Carbon dioxide

Oxygen Urea (made from excess amino acids)

Amino acids

use the data able on the first page of this activity to caculate the number of calories in a single chip and in a single medium apple.

Answers

Answer:

answer

Explanation:

Hi how was your day

Trùng roi giống thực vật:

Answers

Answer:

Wangsulan Iku Soko sing KITA ORA SING MELU SAK GROUP

two glass tubes are placed in water one of them has very concentrated sucrose solution while the other has a concentrated sucrose solution after an hour what will happen to the liquid levels in the glass​

Answers

Answer:

The liquid levels in the solution will become more dilute (have more water) due to Osmosis.

Explanation:

This is because Osmosis moves down a concentration gradient so the water outside the solution will become more concentrated and the solution will become more dilute.

Sexual reproduction involves two parents.


True or False

Answers

Answer:

True

Explanation:

Answer:

true

Explanation:

cause....... just answer it

Which of the following about the cell theory is correct?
a. the cell theory asserts that all cells come from
existing cells.
b. the cell theory states that all cells contain a
nucleus
c. the cell theory was established in 1665 by
Robert Hooke.
d. the cell theory says that a cell membrane
separates one cell from another.

Answers

Answer:

The cell theory asserts that all cells comes from existing cells

Explanation:

plss mark brainliest

The cell theory asserts that all cells come from existing cells. Option a si correct.

The cell theory is a fundamental principle of biology. It was first proposed in the 19th century by Theodor Schwann and Matthias Schleiden. The cell theory states that:

All living things are made up of cells.Cells are the basic unit of structure and function of all living things.All cells come from existing cells.

The cell theory has been supported by many scientific observations and experiments. For example, scientists have observed that cells divide to produce new cells. They have also observed that cells from different organisms have similar structures and functions.

The cell theory is a powerful tool for understanding living things. It allows scientists to study the structure and function of cells, and to understand how cells interact with each other. The cell theory has also led to the development of new technologies, such as cell culture and genetic engineering.

The other options are incorrect. Option b is incorrect because not all cells contain a nucleus. Option c is incorrect because the cell theory was not established in 1665 by Robert Hooke. Option d is incorrect because a cell membrane does not separate one cell from another. A cell membrane surrounds each cell, but it does not separate one cell from another.

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Explain the relationship between DNA and chromosomes

Answers

Answer:

A chromosome is a big molecule made of DNA

Explanation:

Given three independently assorting genes, A, B, and C, how many types of gametes can be produced by the individual with genotype AaBbCc?

Answers

ABC,ABc, AbC, Abc, Abc, aBC, aBc, abC, abc,

before running the gel, dna is mixed with dye and loaded into _______ by the use of a pipette.

Answers

Buffer running the gel, DNA is mixed with dye and loaded into wells ______ by the use of a pipette

Before running the gel, DNA is mixed with dye and loaded into wells through the use of a pipette.

What is Gel electrophoresis?

Gel electrophoresis may be defined as a type of laboratory methodology that is significantly utilized in order to separate mixtures of DNA, RNA, or proteins according to molecular size. This process is used to analyze the biomacromolecules and their fragments on the basis of their charge and size.

In this technique, the molecules that have to be separated are pushed by an electrical field through a gel that contains small pores. Before performing an actual mechanism, DNA is mixed with a dye known as Ethidium bromide and then loaded into wells which are formed by Acrylamide gel through the use of a pipette.

Therefore, before running the gel, DNA is mixed with dye and loaded into wells through the use of a pipette.

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Which layer in the blood vessel is composed of smooth muscle, allowing it to dilate or constrict?

Answers

Answer:

b. Tunica media

Explanation: is correct/post protected

Which of the following is NOT a member of the cetacean group?

A) porpoise

B)dolphin

C) manatee

D) whale​

Answers

Answer:

C) manatee

Explanation:

According to Wikipedia, "Cetaceans are aquatic mammals constituting the infraorder Cetacea. Key characteristics are their fully aquatic lifestyle, streamlined body shape, often large size and exclusively carnivorous diet."

The most important thing to note here is the part saying "exclusively carnivorous diet." Manatees are aquatic mammals with a fully aquatic lifestyle and large size, but they are not carnivorous. Manatees feed on water grasses, weeds, and algae, according to National Geographic. So, manatees are not cetaceans.

Hopefully that was helpful! :)

How does tumor angiogenesis help spread cancer throughout the human body?
A. By disrupting the body’s hormone levels.
B. By forming new blood vessels.
C. By making the body think the blood isn’t pumping fast enough.
D. By forming new white blood cells.

Answers

Answer:B

Explanation: By forming new blood vessels to supply the tumour with oxygen and nutrients.

easy one - giving brainly if correct.​

Answers

Answer:

I think the answer is D.

Match each muscle of the head and neck with the correct label.

Answers

Answer:

yes. Your correct order is

1. Frontalis, 2 Temporalis, 3 Masseter, 4 Sternocleidomastoid and 5 Occipitalis.

Explanation:

How does the image above model genetic diversity in sexually reproducing organisms?

Answers

the combination of diploid sex cells

B. that gametes containing genetic diversity have combined to create a new organism

C. that somatic cells containing genetic diversity have combined to create a unique organism

D. that identical gametes have combined to create a haploid zygote

What is the amino acid sequence formed from the mRNA strand AUG GAC CAC UUU UAA?

a. methionine aspartic acid histidine phenylalanine
b. methionine aspartine histidine phenylalanine
c. phenylalanine histidine aspartic acid methionine
d. methionine aspartic acid histidine phenylalanine tyrosine
e. there is not start codon so no protein would form

Answers

Answer:

A

Explanation:

I hope my answer help you. Please, rate it as brainlest answer.

How do thick and fleshy leaves of Aloe vera help in adaptation​

Answers

Answer:

Help in storage of water

Explanation:

It stores a lot of water in it to avoid it from drying up

What is a non-Mendelian pattern of inheritance? *

Answers

Answer:

Non-Mendelian inheritance is any pattern of inheritance in which traits do not segregate in accordance with Mendel's laws.

Explanation:

I search it already

#carry on learning


Vegetation determines the kinds of animals that live in an area because plants?

Answers

Answer:

No, plants don't grow in any area because they know they are going to be eaten by animals.The vegetation is just determined by the climates and the environment. You could have a whole forest in your backyard if it wasn't for structures being build and trees being cut down.

Explanation:

Exercise is important for muscles because it
a.
prevents muscles from becoming tired.
b.
helps maintain strength and flexibility.
c.
gives muscles more energy.
d.
prevents muscle injuries.

Answers

Answer:

it is c the answer is C ok thanks

. B.9(C) For an enzyme to be able to catalyze a reaction, the active site must---- *
1 point
be occupied by an inhibitor
increase the activation energy level
have a complementary shape to the substrate
cause the enzyme to be destroyed in the reaction
go keilani

Answers

A protein that speeds up a biological and chemical reaction to build and split any molecule is called an enzyme. They are produced naturally in the body.

The correct answer is:

Option C. have a complementary shape to the substrate.

This can be explained as:

If the active site on the enzyme is occupied by an inhibitor then the substrate will not be able to bind and the reaction will not occur.

Activation energy is the minimum amount of energy needed for the reaction.

If the enzyme is destroyed then no reaction will occur as the active site is present on the enzyme surfaces.

Therefore, the active site should have a complementary shape to the substrate.

To learn more about enzymes and active sites follow the link:

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Answer:

have a complementary shape to the substrate

Explanation:

What do the wavy lines stand for with a ATP model???

Answers

represent bonds that liberate unusually large amounts of energy when hydrolyzed.

Which of the following tissues is specialized for contraction and motion?
-connective tissue
-nervous tissue
-epithelial tissue
-muscle tissue

Answers

4th-muscle tissue

Its the 4th one

Name the relevant tools on organic farm? ​

Answers

Answer:

4. Organic practices

4.1. Biointesive farming. ...

4.2. Crop rotation. ...

4.3. No till and conservation till farming. ...

4.4. Mulching. ...

4.5. Composting.

Though non-limonuse, the planet and satellite shine as they reflect ligh from star and sun. But they have different brightness .Give two reasons.​

Answers

Answer:

The earth has an atmosphere: satellites don't. Plus, the planet and satellites are made up of completely different things, which can affect the emission spectra of light.

Explanation:

Yeast
Makes photosynthesis under light.
Makes alcoholic fermentation reactions.
Only makes anaerobic respiration reactions
Releases oxygen in the fermentation process.

Answers

Answer:

your answer is D

Answer:

the answer must be D: Releases oxygen in the fermentation process.

Explanation:

5. why have people created so many dog breeds? Describe how people created different breeds of
dogs from wolves and why they did so.

Answers

because some dogs have different features, even though they’re all dogs.
It’s to classify the different attributes of the dogs.
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