What is cell wall???​

Answers

Answer 1

Answer:

You can simply define the cell wall as a semi-rigid thick protective structure that surrounds the cell membrane of some types of cells for protection and defining the shape of the cell. The cell membrane alone cannot provide the required rigidity or strength. All living organisms are composed of cells.


Related Questions

Which process is similar to binary fission?Which stage of the cell cycle involves cell growth and DNA replication?

Answers

Answer:

mitosis

Explanation:

i took the test and got it right :) hope this helped

How does connective tissue provide support the body?

Answers

Answer:

Connective tissues perform many functions in the body, but most importantly, they support and connect other tissues; from the connective tissue sheath that surrounds muscle cells, to the tendons that attach muscles to bones, and to the skeleton that supports the positions of the body.

Explanation:

State two similarities and two differences between an
amoeba and a plant cell:

Answers

Answer:

S: Both are eukaryotic (1) and contain a cytoplasm + vacuole (2).

D: Amoebas lack a cell wall (1) and are not photosynthetic organisms (2).

Explanation:

PLS ANSWER NOWWWWWWWWWWWWWWWWW

Answers

Sunlight - 9th down > Needed to chemically change water...

Population - 10th down > More than one organism of the same species...

Community - 3rd down > Different populations in a specific area...

Trophic Pyramid - 4th down > Shows the energy transfers of populations...

Food Web - 6th down > Shows the feeding relationships of the food chains...

Decomposer - 8th down > Helps dead things to chemically change...

Which of the following is a FALSE statement about fungi?
A. Fungi may be multicellular or unicellular

B. Fungi are heterotrophs

C. Fungi have a cell wall made of chitin

D. Fungi are autotrophs

Answers

D

fungi are not autotrophic as they lack chloroplast

Answer:

D. Fungi are autotrophs

Explanation:

Fungi are autotrophs is a false statement about fungi. Fungi are heterotrophs.

How is the water and boiling point of water useful to us

Answers

Answer:

The boiling point of water can be used to illustrate the importance of hydrogen bonds in living systems. The boiling point of a compound is the temperature at which a liquid becomes a gas.  When the temperature is high enough to separate the individual molecules from each other, they boil, or become a gas.

Explanation:

hope this helps

Day to day tasks
A lot of things we do is relient on water and many food are needed with water. And non visible water particles are recognizable with its boiling point

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HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP



Answers

I think it is B but I am not so sure

What map unit (Centimorgan) is adopted in
the construction of genetic maps?

Answers

A unit of distance between genes on chromosomes, representing 1% cross over. Explanation: 1 map unit represent 1 % cross over. Map unit is used to measure genetic distance.

MARK ME AS BRAINLIEST.

Francis was recording plant heights for an experiment. Each time that she took a measurement, she wrote it down. Then, she measured the plant again and compared the new measurement to the one that she had recorded in her notebook. What was she most likely trying to do
revise her hypothesis
check her memory
make the data more valid
form a conclusion

Answers

revise her hypothesis I guess because

she recorded the experiment again and again and then wrote it so she could get more knowledge about the experiment

Answer:

A

Explanation:

edge 202

PLEASE HELP! WILL MARK BRANLIEST!
The amount of carbon today is the exact amount that has always been on Earth. T or F

Answers

Answer:

False

Explanation:

Every time, the amount of carbon increases depending on the population that has grown on our planet. Carbon is a chemical substance that is created by human activities which are wood, coal, natural gas, gasoline, and oil, If it is burned, Carbon dioxide is released and mixing it in the air and continuously adds for as long as they keep doing it.

Thank you! ^^

meaning of onion epidermal cell​

Answers

Answer:

Outermost layer

Explanation:

Onion epidermal cells act as a barrier against infections and fungus that might injure the delicate tissues. Onion epidermal cells  are frequently used to educate children to botanical anatomy or to explain plasmolysis due to their simple and basic structure and transparency.Onion epidermal cells is used for cover onion from weather  too.

What is the name of one convection cell that forms because of the Coriolis effect? How does the air move in that convection cell?

Answers

Answer:

Hadley CellsWarming air causes it to ascend. The cool air will sink. The action eventually results in a convection cell, with air rising, traveling to the side, dropping, and returning. This heat-driven air movement circulates heat throughout the atmosphere.

OAmalOHopeO

What is the biology behind the improvement of strength in the human body? describe

Answers

Answer:

Due to its function to fight against disease.

Explanation:

Improvement of strength in the human body is very important because strong body helps in fighting against diseases. Strong body helps in doing physical activities and also helps in protecting itself from every type of harm. Weak human body can't fight against diseases due to weak immune system so we can conclude that improvement in human body is necessary for survival, development and health of human.

The punctuated equilibrium model of evolution agrees with the theory of gradualism
on the idea of

a) inheritance of acquired characteristics
b) natural selection
c) use and disuse of organs
d) the rate of speciation

Answers

Natural selection. They disagree on the rate, inheritance, and whatever c is talking about.

What are the chances that the parents will have a hairless baby guinea pig?

A. 75%


B. 25%

Answers

Answer:

I believe it is B

Explanation:

hope this helps

Answer:

B. 25%

Explanation:

There is a 50-75% or about half chance that the babies bred by a Skinny Pig and a haired Skinny pig gene carrier, will have hairless Skinny pig babies. The rest of the babies will just be skinny pig gene carriers. There is only a 25% chance that 1 or so hairless skinny babies will be born in these litters.

PLEASE HELP! WILL MARK BRANLIEST!

Carbon Dioxide trapped in the atmosphere causing the Earth to become is called the ___:

A. global warming, B. greenhouse effect, C. botanical gardens effect

Explain why.

Answers

Answer:

Greenhouse effect

List Name two material resources and give an
example of how each is used.

Answers

Answer:

Wood : used for building tables and chairs, and sometimes houses

Plastic: used in a way wheir we put drinking water in it, or grocceries.

Explanation:

Hope this helps!!!

Answer:

sand and cotton. Sand is a raw material that is used in making a clear window glass.  such as socks and shirts, are made from cotton.

hope it helps

What are the chances a
heterozygote passes on
either a dominant or
recessive allele?

Answers

Answer:

A parent with one copy of a dominant allele and one recessive coded Ww for the widow's peak  is called heterozygous for a trait and has a 50 percent chance of passing on the dominant allele to each of his or her offspring, regardless of the gene inherited from the other parent.

Explanation:

hope this helps in some way sorry if it does not

When both alleles for a gene are expressed in a heterozygous offspring

a.Allele
b.Codominance
c.Anther
d.Geneotype
e.O F1 Generation

Answers

Answer:

Explanation:

Codominance, when both characteristics are expressed.

What do you notice about the speed of electrons through the short circuit?

Answers

No picture, no observation = no way to answer this.

de que sustancia esta lleno el cromosoma

Answers

Answer:

Los cromosomas están compuestos por dos cadenas largas de polinucleótidos asociados a proteínas histonas

Explanation:

Un cromosoma es una molécula lineal de ácido desoxirribonucleico (ADN) la cual está compuesta por dos cadenas de nucleótidos dispuestas en forma de doble-hélice. En el ADN, cada nucleótido está formado por una azúcar desoxirribosa, un grupo fosfato y un tipo de base nitrogenada (los cuatro tipos de bases nitrogenadas que forma nucleótidos en la molécula de ADN son Timina, Guanina, Citocina y Adenina). La molécula larga de ADN en doble hélice se encuentra asociada a proteínas histonas para formar las fibras de cromatina. Aproximadamente 150 pares de bases de la molécula del ADN se encuentran enrolladas con las histonas H2A, H2B, H3 y H4 (dos subunidades de cada una) para formar un nucleosoma, la unidad básica de la cromatina. Finalmente, es importante indicar que la molécula de ADN contiene regiones no codificantes y regiones codificantes, es decir, fragmentos de ADN los cuales son utilizados como templados para producir moléculas de ARN mediante un mecanismo conocido como transcripción. Los ARN mensajeros (ARNm) son un tipo especial de ARN sintetizados a partir de fragmentos codificantes de ADN conocidos como 'genes'.  Posteriormente al proceso de transcripción, estos ARN mensajeros sirven a su vez como templados para la síntesis de proteínas en los ribosomas, mediante un mecanismo conocido como 'traducción'.

Energy from food must be transformed into the bonds of
before it can be used by cells
A)
ATP
B)
GNC
NADP
D)
cellulose

Answers

The answer is ATP. ATP is the universal energy for all chemical reactions.glad to be of assistance

what comes first egg or chicken. please answer ASAP

Answers

Answer:

Egg.

Explanation:

Technically speaking, dinosaurs were some of the first living creatures on Earth, and they laid eggs long before chickens were around.

The egg comes first,

The diagram below summarizes an important process.
Mpho
Which process does the diagram summarize?
Interphase
O A. The Calvin cycle
B. Meiosis
O C. Mitosis
O D. The cell cycle

Answers

Can’t see a diagram.

Answer:

The cell cycle

Explanation:

Would you predict more earthquakes in areas where tectonic plates are colliding or where they are moving apart?
PLSS HELPP MEEE

Answers

Answer:

Maybe where they are colliding because when they collide there is going to be a wave of impact that will go to the surface

Explanation:

Which hormone is involved in female puberty, pregnancy, and menopause?

Answers

Estrogen is involved in all three.
Estrogen plays a big role in reproductive and sexual development, including:
puberty
menstruation
pregnancy
menopause

Human sperm and egg cells have ____ chromosomes.
A. 42

B. 21

C. 23

Answers

Answer:

They each have 23 chromosomes

Explanation:

Answer:

C. 23

Explanation:

Human sperm and egg cells have 23 chromosomes.

Which two substances are among the four major types of organic compounds made by living things?
A:Carbohydrates
B:Potassium
C:Water
D:Proteins

Answers

Carbohydrates and proteins

¿POR QUÉ ES TAN IMPORTANTE PARA LAS ESPECIES EL OLFATO?

Answers

El olfato es vital para la supervivencia de la mayoría de humanos y animales, ya que les permite rastrear alimentos y agua, encontrar pareja e incluso comunicarse.

Explanation:

una pregunta porque puedes hablar español si esto es de ingles este Braylin

help me ls 20 points !!! i will mark brainliest just someone help me quick

Answers

Answer:

Mutations and sexual reproduction is the right answer

Hope it helps:)

Please mark me the brainliest if you won't mind:)

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