Kayla summarizes the cell theory to her class. She states that all organisms are made up of one or more cells. Which pair of statements correctly completes her summary?
A. All cells are the same size, and the cell is the basic unit of all organisms.
B. All cells come from existing cells, and all cells have the same parts.
C. The cell is the basic unit of all organisms, and all cells come from existing cells.
D. The cell is the basic unit of all organisms, and all cells have the same parts.

Answers

Answer 1

Answer:

C

Explanation:

Cells are a basic unit of life and that without cells you don't exist as a living being.  Also, all the other answers have a flaw in them like in question A... not all cells are the same size. For question B and D... not all cells have the same, parts or organelles since for plants they have chloroplast while animals don't. Eukaryotes have membran- bound organelles and a nucleus while... a Prokaryote doesn't etc...


Related Questions

Proteins are found in all cell types and tissues. Contrasted to proteins found in skeletal tissue, what is the main function of proteins found in antibodies?


A. to provide storage for elements
B. to allow muscle movement
C. to provide storage for energy
D. to protect against disease​

Answers

Answer:

d

Explanation:

This DNA strand consists of eight pairs of nitrogenous bases. How many different sequences of eight bases can you make? Explain how you found your answer.

Answers

Answer:

In the sequence of 8, it would be 4 (possible bases) to the power of 8 because you need to multiply 4, eight times for the number of sequences. Therefore, the answer is 65, 536 possible sequences.

There are 65,536 different possible sequences in a DNA strand consisting of eight pairs of nitrogenous bases.

We have a DNA strand consisting of eight pairs of nitrogenous bases and we want to know how many different sequences of eight bases can we make, that is, how many combinations are possible.

In DNA, there are 4 kinds of nitrogenous bases: Adenine (A), Guanine (G), Thymine (T) and Cytosine (C).

Each position (P) can be occupied by any of the 4 bases (B).

Since there are 8 positions, and the bases can be repeated, we can calculate the total number of different sequences (N) using the following expression.

[tex]N = B^{P} = 4^{8} = 65,536[/tex]

There are 65,536 different possible sequences in a DNA strand consisting of eight pairs of nitrogenous bases.

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What are the two bands of latitude on Earth that receive no light at times called?

Answers

Hopefully this help you!!!!

Answer:

summer and winter

Explanation:

Nitrogenous wastes result from the metabolism of what?

Answers

Answer:

Explanation:

The nitrogen compounds through which excess nitrogen is eliminated from organisms are called nitrogenous wastes (/naɪˈtrɒdʒɪnəs/) or nitrogen wastes. They are ammonia, urea, uric acid, and creatinine. All of these substances are produced from protein metabolism.

I explained it the best I could. Can I have brainlliest? Thank you.

Answer:

Explanation:The nitrogen compounds through which excess nitrogen is eliminated from organisms are called nitrogenous wastes (/naɪˈtrɒdʒɪnəs/) or nitrogen wastes. They are ammonia, urea, uric acid, and creatinine. All of these substances are produced from protein metabolism.


Are Viruses Alive? Venn Diagram
Directions: Use the word bank provided to complete the Venn diagram below. Then complete the exercise
below.
Word Bank
Capsid
Cell Membrane
Nucleus
Evolve
RNA
Cell organelles
Envelope
Heredity
Homeostasis
DNA
Ribosomes
Develop
Cell
Virus

Answers

Answer:

Viruses are not alive

Explanation:

Viruses are acellular structures capable of performing some biological functions.

What are viruses?

Viruses are parasitic structures made of an outer protein capsid and genetic material which are able to replicate in a living cell and thus cause infection in the cell.

Viruses hijack the replicative machinery of the host to produce copies of its own genetic material. A single infected cell is capable of producing thousands of viruses.

The virus only injects the nucleic acid inside the target cell, the envelope and capsid are left outside. The hijacked genetic machinery of the host produces further copies of the nucleic acid, capsid and envelope.

These structures are assembled to give rise to new viruses.

If a large number of viruses are synthesized rapidly, it results in cell lysis. This type of infection is called the lytic cycle.

If the virus genome incorporates with the host genome, it is present there silently and being replicated. Upon receiving an activation signal lytic cycle is activated. It is called the lysogenic cycle

Therefore, viruses are acellular structures capable of performing some biological functions.

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please answer this for me

Answers

Answer:

The answer is A

Explanation:

You can take a sample of blood from an animal or a leaf from a plant and put it under a microscope and you will see that they are both made of cells.

ILL GIVE BRAINLIEST AND EXTRA POINTS- Who FIRST recognized the cell as the universal unit of life? HINT ITS NOT HOOKE I GOT IT WRONG
1. Virchow

2. Van Leeuwenhoek

3. Schleiden and Schwann

ASAP PLEASEEEEE

Answers

Answer:

2. Van Leeuwenhoek

Explanation:

Hooke did discover it, but the cells were dead already. So it's Van Leeuwenhoek.

Please need help as soon as possible thank you so much

How dose domestication relate to artificial selection?

Answers

Answer:

Artificial selection and domestication is where humans take matters into their own hands. And instead of waiting for nature to do things, they are the selection factor. ... And when you have that type of artificial selection, the change can happen much, much faster. Breeding is essentially artificial selection.

Explanation:

Artificial selection and domestication is where humans take matters into their own hands. And instead of waiting for nature to do things, they are the selection factor. ... And when you have that type of artificial selection, the change can happen much, much faster. Breeding is essentially artificial selection.

what statement is best supported by the data shown

Answers

I can’t refer to anything, so how am I supposed to help :(

Define ecological succession.

Answers

Answer:

the process by which the structure of a biological community evolves over time

Explanation:

Answer:

the process by which the structure of a biological community evolves over time. Two different types of succession—primary and secondary—have been distinguished.

Explanation:

a _________ reaction occurs when you mix an acid with a base

Answers

The answer is Neutralization Reaction!

Hope this helps :)
- Rae

Answer:

a Neutralization reaction occurs

Explanation:

During cell respiration, the reactants of glucose and oxygen are transformed into the products of carbon dioxide, water, and ATP. Which of the following cell transport processes would be relatively unaffected if a cell no longer had access to glucose? Choose 1 answer: Choose 1 answer: (Choice A) A The transport of calcium into a muscle cell via facilitated diffusion. (Choice B) B The transport of an amino acid into an intestinal cell from an area of low concentration to an area of high concentration gradient. (Choice C) C The transport of sodium against its concentration gradient in a brain cell. (Choice D) D The passive transport of a charged potassium ion (K^+ + start superscript, plus, end superscript) through a cell membrane.

Answers

The process of cell transport that would be relatively unaffected if a cell no longer had access to glucose is the transport of calcium into a muscle cell via facilitated diffusion. Thus, the correct option is A.

What is Cellular respiration?

Cellular respiration may be defined as the chemical process through which the breaking down of food occurs with the liberation of energy. This process takes place in the excess of oxygen and constructs energy from carbohydrates (sugars).

The excess glucose delivers the required energy for the cell to perform its metabolic activities. But when the amount of glucose is not significantly present in the cell, the process of transport of calcium into a muscle cell via facilitated diffusion remains unaffected.

This is because the transport of calcium occurs due to paracellular passive transport without the utilization of energy. While the rest of the process requires energy for the transport.

And due to a lack of glucose, cells do not have the ability to derive energy in form of ATP.

Therefore, the process of cell transport that would be relatively unaffected if a cell no longer had access to glucose is the transport of calcium into a muscle cell via facilitated diffusion. Thus, the correct option is A.

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How do blood glucose levels increase in the body?

Answers

After you eat meals

Fragments of metal or rock which enter the Earth's atmosphere from space are called:
Meteorites
Meteoroids
Meteors

Answers

meteoroid- hope this helped have a good day!!

Answer:

meteorites. i had the same one.

Explanation:

what is the kinetic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s

Answers

Answer:

We can plug in the information for the ball into this equation to determine the kinetic energy. The mass is 0.5 kg and the velocity is 10 meters per second. So: KE = (1/2)(0.5)(10)^2. Thus the kinetic energy of the ball is 25 J

Explanation:

Examine the images.

Which of the following statements best explains why the cube in Image B is under more pressure than the cube in Image A?

A.) The density of the fluid in Image B is greater than that of Image A.
B.) The volume of the cube in Image B is greater than that of Image A.
C.) The volume of fluid in Image B is greater than that of Image A.
D.) The mass of the cube in Image B is greater than that of Image A.

Answers

The answer is C.) The volume of fluid in Image B is greater than that of Image A.

The components of blood can be separated by spinning them at high speed.
Figure I shows a tube of blood that has been separated in this way.
Figure 1
substance X
white blood cells and platelets
red blood cells
- Identify the substance labelled X.

Answers

Answer:

Plasma

Explanation:

We don't have the figure, but I think the answer is probably plasma.

Blood plasma is the fluid that blood cells are suspended in. When blood is spun at high speed, the cells separate away from the plasma into different layers because of their different weights and shapes.

Plasma is liquid portion of blood. It transports nutrients and wastes and maintains  homeostasis.

What function makes the HIV virus unique?
A. It has viral DNA that remains dormant until environmental conditions are right.
B. It attacks neurons in the nervous system and causes paralysis
C. It attacks and destroys certain cells in the bodies of its host organisms.
D. It has viral DNA that is transmitted through direct contact with infected persons

Answers

Answer: A

It has viral DNA that remains dormant until environmental conditions are right.

HIV is a unique human RNA virus, capable of infecting cells of the immune system.  

Plz mark brainliest:)

It attacks and destroys certain cells in the bodies of its host organisms. Therefore, option (C) is correct.

What is HIV?

HIV, or human immunodeficiency virus, attacks and destroys a specific type of immune cell called CD4+ T cells. These cells play a critical role in the immune system, and their destruction leads to a loss of immunity and the development of acquired immunodeficiency syndrome (AIDS). HIV is unique in that it specifically targets and attacks these cells, leading to a gradual decline in the body's ability to fight off infections and diseases.

HIV is primarily spread through sexual contact, but can also be spread through sharing needles or from mother to child during pregnancy, childbirth, or breastfeeding. HIV can lead to AIDS (Acquired Immunodeficiency Syndrome) if left untreated.

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Which process is the opposite of inbreeding?
pollination
hybridization
seed production
genetic engineering
9

Answers

Answer:

B

Explanation:

Hybridization

Answer:

B

Explanation:

9.. Water enters the atmosphere as water vapor when liquid water ______
on Earth's surface. (12 points!!) i will give a brainliest and a like. please reply fast!!)

Answers

I would think boils, because it then evaporates making “water vapor” into the atmosphere.

The chemical reaction equation of photosyntesis is shown here: What information is not given in this equation. It does not show if the reaction is reversible or not reversible. It does not show the reactants needed for the reaction. It does not show that photosynthesis consists of many separate steps. It does not show the number of molecules required to produce glucose.

Answers

Answer:

does not show if the reaction is reversible or not reversible.

Explanation:

its that

Helpppppp meee! Pleaseee

Answers

Answer:

i'm pretty sure its false

Answer:

false

Explanation:

What is resolving power? Why is it important in biology?

Answers

Answer:

it is the measure of the clarity of the image.the minimum distance between two points can be  separated and still be distinguished as two points is resolving power.it is important because it helps to see small molecules that can't be seen with naked eye  

Explanation:

is this correct? please help me

Answers

Answer:

It look good to me but I dont know for sure so we will see

Logistic growth curves are density-dependent.
true or false?

Answers

Answer:

true

Explanation:

A curve in which the rate of population growth stays the same, as a result, the population size increases steadily. ... Resources that limit population growth to their quantity, such as food and water. Logistic Model. A population model in which exponential growth is limited by a density-dependent factor.

Answer:

A, true

Explanation:

have a great day and stay happy

Change that happens in a living organism because of a stimulus

Answers

Answer: A change in an organism's surroundings that causes the organism to react is called a stimulus (plural stimuli). An organism reacts to a stimulus with a response- an action or change in behavior. Another example is if you are cold, you shiver. The cold is the stimulus while the shivering is the response.

(The plural of stimulus is stimuli. Its verb form is stimulate, which typically means to spur into action or to invigorate.)

Explanation: I hope this helps plz tell me if its wrong so i can fix it :)

Hal wonders about the properties of electromagnetic waves that make up the visible light spectrum. He conducts an experiment to see how sunlight behaves while moving through a prism. He is able to separate visible light into colors of the rainbow. He notices that each color has a unique wavelength and frequency.

Diagram showing wavelengths of light that make up the visible spectrum.

Which of these statements describe visible light waves? Choose the two that apply.
A. Red light has a longer distance between wave crests than blue light.
B. Yellow light has a shorter distance between wave crests than green light.
C. Blue light has a longer distance between wave crests than red light.
D. Blue light has a shorter distance between wave crests than orange light.
E. Orange light has a shorter distance between wave crests than violet light.

Answers

Answer:

d.Blue light has a shorter distance between wave crests than orange light.

A. Red light has a longer distance between wave crests than blue light.

Explanation:Make sure u read!!!!

The correct answers are C. Blue light has a longer distance between wave crests than red light, and E. Orange light has a shorter distance between wave crests than violet light.

What is visible light?

Visible light waves are a type of electromagnetic radiation that are visible to the human eye. They make up a small portion of the electromagnetic spectrum and have wavelengths that range from about 400 nanometers (nm) to 700 nm. Visible light waves can be separated into colors of the rainbow, including red, orange, yellow, green, blue, indigo, and violet.

Each color of visible light has a unique wavelength and frequency. Red light has the longest wavelength and the lowest frequency, while violet light has the shortest wavelength and the highest frequency. This means that red light has a longer distance between wave crests than violet light, and violet light has a shorter distance between wave crests than red light.

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What is the mRNA transcript for this gene? CTTCGGATC

Answers

Answer:

GAAGCCTAG

Explanation:

A in Bio last year

DID YOU KNOW Bananas are curved because they grow towards the sun ☀️

Answers

Answer:

Wow! really? I have heard of it but I never believed it. After you wrote this, I searched it up and it's true

thanks for the fun tidbit! :)

Explanation:

Answer:

No, but now I do, a very interesting fact!

Which organism is an animal-like protist?
cilia
dinoflagellates
amoeba
truffle

Answers

The answer is “Amoeba”
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