what is a cell ? how many types of cells are there?​

Answers

Answer 1

Cell is the living blocks of life. They form the structural

and the functional unit of our life, that is a group of cell

forms tissue, a group of tissue forms organ, a group of

organs form organ system and finally a group of organ

systems form a complete organism / individual.

And there are two types of cell

1/ eukaryotic cell ( consists of the plant cell and the animal

cell )

2/ prokaryotic cell (... I don't know man )

Answer 2
A cell is what makes up all living things. There are about 200 different types of cells that makeup the human body.

Related Questions

Which statement best describes the density of the outer planets

Answers

Answer:

"The correct statement is, “All the outer planets have low density.”

The outer planets such as Saturn, Jupiter, Neptune, and Uranus are the giant’s planets but in terms of density, they are less due to the gas and jovian.

The densities between the inner and outer circle are different due to the rock-solid.

Explanation:

What is a gene? ……………….

Answers

Answer:

2nd one is correct

Explanation:

Answer: B

Explanation:

n the sliding filament model of muscle contraction, the myofilaments slide over each other, resulting in the overlappying of actin and ____________ .

Answers

Answer:

In the sliding filament model of muscle contraction, the myofilaments slide over each other, resulting in the overlappying of actin and myosin.

Explanation:

Sliding filament theory explains the way muscles contract; each sarcomere (functional unit of muscle) contains superimposed thin (actin) and thick (myosin) filaments that are interconnected by cross bridges. According to the theory, the shortening of the length of a sarcomere is produced by the two types of filaments that slide over each other; large intermolecular forces between the myosin head and the crossed bridge cause the head to tilt. Through this power glide, the fine filaments are drawn between the thick filaments of each sarcomere. The contraction is triggered by a stimulating nerve impulse that causes an action potential to spread through the sarcomere.

Why is it important to avoid applying too much nitrogen fertilizer?

Answers

Explanation:

Why is it important to avoid applying too much nitrogen fertilizer?

Too much nitrogen can increase the salinity of soil.

A patient with osteoporosis (reduced bone mass) may have a history of health issues. One issue could be
not enough skin exposure to the sun to make Vitamin D.
weak ligaments.
an increase in the absorption of calcium in the digestive system.
weak tendons.

Answers

Answer:

not enough skin exposure to the sun to make Vitamin D.

Explanation:

The correct answer would be not enough skin exposure to the sun to make Vitamin D.

The body makes vitamin D by being exposed to the sun and this vitamin and its metabolite are quite important in the homeostasis of calcium. Calcium on its own is very essential to the formation of bones in the body.

Hence, when the skin is not adequately exposed to the sun, the body becomes short of vitamin D and this disrupts the homeostasis of calcium and the formation of bones in the body. Thus, osteoporosis, also known as weak bones, may result.

Answer:

(A) not enough skin exposure to the sun to make Vitamin D.

Explanation:

♥☺

Explain what is happening between these 2 atoms.

Answers

Like a magnet they are repelling from each other

Sejak bilakah mereka berkawan?​

Answers

What does this mean?

There are sixty-one mRNA codons that specify an amino acid, but only forty-five tRNAs. This is best explained by the fact that

Answers

Answer:

See the answer below

Explanation:

The phenomenon is best explained by the fact that the genetic codes are degenerates. In other words, more than one codon can specify for the same amino acid being carried by the tRNA.

The base-pairing rule between the third nucleotide of a codon and that of the anticodon on the tRNAs loosens off. For example, GUU, GUC, and GUA all specify for the amino acid valine while GCU, GCC, and GCA all specify for alanine.

The landscape of the Amazon rain forest has become more fragmented over the past half century. Thus, we would say that its _______ has changed.

Answers

Answer:

Structure.

Explanation:

It has changed its structure. Structure is the correct answer.

When Kaori Sato used a simulated forest to study the Commons Dilemma in a communal culture, he found:

Answers

Answer:

results much like those obtained in western cultures

Explanation:

somebody help. . can someone please tell me the types of layering in root establishment in plants?.​

Answers

Answer:

Layering can be used to multiply many of your favorite plants now growing around your yard and in your home. There are six common types of layering: air, simple, tip, trench, serpentine and mound. Air and simple layering are the most popular types

Explanation:

PLZ MARK AS BRAINLIEST

Answer:

The answer above me is correct

Name the 3 systems make a
nervous system of rabbit.​

Answers

1. The central nervous system including brain and spinal cord.

2. The peripheral nervous system including nerves coming out from the brain and spinal cord, i.e., cranial nerves and spinal nerves.

3. The autonomic nervous system including sympathetic nervous system and parasympathetic nervous system.

Answer:

The nervous system of rabbit consists of three divisions:

1. The central nervous system including brain and spinal cord. 2. The peripheral nervous system including nerves coming out from the brain and spinal cord, i.e., cranial nerves and spinal nerves.

Explanation:

what lead to the growth of most sea weeds in lakes . please help​

Answers

Answer:

The more turbid the water, the warmer the water will be, allowing algae to grow quickly. As algae forms, the water becomes increasingly turbid, which fosters an even stronger environment for algal blooms to thrive.

Answer:

carbon and organic substance

Explanation:

when animals are dead under the sea /or when some other substance under go the process of decomposition they produce carbon and some nutrients hence support plants growth

What kind of material is found in the C horizon of a soil profile?

hardpan

mineral and organic matter

clay particles

partially weathered parent material

Answers

Explanation:

partially weathered parent material

Answer:

partially weathered parent material

Explanation:

Complete the sentences with the appropriate words Cells use ____________ to power most cellular activities that require work.

Answers

Answer:

ATP

Explanation:

The nuclei (the structure inside a cell that contains DNA) of the cheek cells have been stained using a special dye so that they appear purple. What shape are they

Answers

Answer: Oval.

Explanation:

The nucleus of a cell is a membranous structure normally found in the center of eukaryotic cells and is where most of the cellular genetic material is found, organized in DNA molecules (deoxyribonucleic acid) associated with proteins such as histones, which make up the chromosomes.

The function of the nucleus is to maintain the integrity of the genes in the DNA and to regulate gene expression to control cellular activities. It then controls when DNA is transcribed into RNA (ribonucleic acid) and when it is exported to the cytoplasm to be translated into proteins.

The nucleus is composed of a nuclear envelope consisting of a double membrane that surrounds it, as well as pores that allow the passage of RNA for the regulation of gene expression.

The cells of the inner cheek are classified as non-keratinized stratified squamous epithelium. An epithelium is a tissue made up of joined cells that line the outer surface of the body and inner organs. Squamous cells are flat, scale-like, whereas stratified cells are arranged in multiple layers. Non-keratinized means that the cells constitute soft tissue found in the moist parts of our body, such as the mouth, stomach, among others. In a normal healthy cell, the nucleus is uniformly stained, oval in shape and smaller in relation to the cytoplasm.

A man with Type B blood has children with a woman with type A blood. Their children have the following blood types, A, AB, B, and O. What are the genotypes of the parents? What would be the genotypes of the parents if the offspring could only have type AB or A blood

Answers

the child has the blood type of Ab its obvious

Explanation:

only when both alleles is O, the blood group can be O. Thus both parents must have O as one allele

Thus man's genotype: BO or

[tex] { | }^{b} i[/tex]

Woman's genotype : AO or

[tex] { | }^{a} i[/tex]

When

the children can not have O blood

The children cannot have B blood

means the man have BO

[tex] { | }^{b} i[/tex]

and woman have AA

[tex] { | }^{a} { | }^{a} [/tex]

Because

if man have BB, and woman have AA

children can only have AB

if man have BB, and woman have AO

children can only have AB and B

Brainliest please~

This diagram summarizes a method to group land plants.

A diagram summarizes a method to group land plants. Plants are divided into 1 and 2. 2 is divided into 3 and 4. 4 is divided into 5 and 6.
Which row in the table best represents the evolution of plants that match the diagram?

Labels for Plant Classifications

1
2
3
4
5
6
A
Gymnosperms
Angiosperms
Seed plants
Seedless plants
Monocots
Dicots
B
Dicots
Monocots
Angiosperms
Gymnosperms
Seed plants
Seedless plants
C
Seed plants
Seedless plants
Angiosperms
Gymnosperms
Dicots
Monocots
D
Seedless plants
Seed plants
Gymnosperms
Angiosperms
Monocots
Dicots

Answers

Answer:

The correct answer is D.

Explanation:

The plants are grouped formally into 12 phyla (phylum plural) and are collected in four groupings. These four groupings are based on the history of the evolution of important plant characteristics:

Nonvascular plants evolved earliest. They are distinct from the algae because they preserve the embryo inside of the reproductive structure after fertilization. There is no vascular tissue, xylem, and phloem for these plants to convey nutrients, water, and food. For example, moose, liverwort, and hornworts. These plants do not grow very high without vascular tissue.Vascular seedless plants have evolved into non-vascular tissue but no seeds. The fern, fern, club moss, and horsetails are examples. These plants could grow larger with vascular tissue.Gymnosperms have evolved into seeds but have no blooms. For example, redwood, fir, and cypress trees. Gymnosperms. Gymnos in Greek means "naked"; the gymnosperm seeds are bare, not floral.Flowers or angiosperms have developed into vascular tissue, seeds, and flowers. Angiosperm for example includes magnolia, roses, tulips, and tomatoes.

Answer:

The correct answer is D.

Explanation:

Describe the difference between a benign and malignant tumour

Answers

Answer:

Explanation:

A benign tumor isn’t cancerous while a miligment tumor is

How does renal medulla differ from renal cortex?​

Answers

Answer:

The main difference between renal cortex and renal medulla is that renal cortex is the outer region of the kidney which contains blood vessels connected to the nephrons whereas renal medulla is the inner region of the kidney which contains 8-12 renal pyramids

In recent history, humans have influenced which parts of life on Earth?
A. Almost none of it.
B. Life on land only.
C. Virtually all life on Earth.
D. Life in cities only.

Answers

C. Virtually all life on Earth.

They have affected nearly every life form.

I’ll give you the answer later

Parte de la variabilidad genética que aporta la meiosis se produce en la

Answers

Answer:

Se produce durante la profase 1 de la meiosis, y en ella se da un entrecruzamiento entre una de las dos cromátidas de los cromosomas homólogos, por lo que las cromátidas resultantes son diferentes entre sí y de las originales.

Explanation:

The following equation shows the correct molecules formed in the reaction, but the products are incorrect
CH, +20,- H2O + CO2
How would you correct the products?

Answers

Answer:

CH4 + O2 ----> CO2 + H2O

Explanation:

the results is carbon dioxide plus water

Antibody tests are commonly used for rapid diagnosis of many types of infection. However, they are NOT particularly useful for diagnosis of histoplasmosis. Why is this so

Answers

Answer: Antibody tests are not useful because in endemic areas over 95% of the population has been infected without contracting the disease.

(if this is the right answer mark brainliest)

A student combined equal amounts of two solutions. One solution had a pH of 2 and the other had a pH of 12. Which would most likely be the resulting pH?

Answers

Answer:

This question lacks options, the options are:

A. 1

B. 3

C. 6

D. 11

The answer is C. 6

Explanation:

pH of a solution refers to the concentration of hydrogen ions in that solution. A scale is used to measure pH of a solution.

* A pH value less than (<) 7 is said to be ACIDIC. The lesser the number, the more acidic

* A pH value of exactly 7 is said to be NEUTRAL

* A pH value above (>) 7 is said to be BASIC OR ALKALINE. The higher the number, the more alkaline.

According to this question, two solutions of equal volume with pH values of 2 and 12 respectively were combined. Based on the explanation of pH scale, the solution with pH 2 is said to be very ACIDIC while the solution with pH 12 is said to be very ALKALINE.

Hence, if this two solutions are combined, a neutralization will occur which will result to a solution with close to neutral pH (7). In the above options, 6 is the closest pH value to NEUTRAL and hence, the most likely pH of the resulting solution.

Answer:

6

Explanation:

edge 2022

If the first base in the sequence below were mutated to a C, what would that do to the amino acid sequence?
A U G G C G G A A
Methionine, Alanine, Glutamic Acid

Answers

Answer:

it would be Leucine , Alanine , Glutamic Acid

Explanation:

enjoy your day :)

Is it a, b, c or d? Please help

Answers

Answer:

a. The hog farmer does not notice the barn smell from the working boots when he  wears them on the porch of the house.

Explanation:

The hog farmer does not notice the barn smell from the working boots when he  wears them on the porch of the house is the example of sensory adaptations. Sensory adaptation is a decrease in sensitivity to a stimulus after regular exposure to it. So the farmer can't smell his own boots due to regular exposure to the smell so we can say that it is an example of sensory adaptations..

Human-to-human transmission of plague is usually by Group of answer choices unsanitary conditions. the respiratory route. dog flea. rat flea. wounds.

Answers

Answer: The correct answer is respiratory route.

Explanation: Disease can be transmitted from human to human through respiratory route. This can occur when the infected person cough or sneeze into the air , some particles of the pathogens are released and there is any human around the infected person when he sneez or cough, the person tend to get infected by inhaling or breathing in the infected air.

Select the correct answer from each drop-down menu. Study the pie chart, and then complete the passage. Causes of deforestation in the Amazon, 200-2005. The pie chart indicates that deforestation in the Amazon rainforest is ___(a result of industrial manufacturing. Mostly driven by food production. Unrelated to human activity). The loss of large carbon-storing trees combined with the presence of ___(oxygen. Methane. Sulfur)-producing cattle is likely to intensify the greenhouse gases in the Amazon.

Answers

Answer:

first box- A result of industrial manufacturing

second box- Methane

Explanation:

Im not for sure but this is what i believe it is if possible ill update

The pie chart indicates that deforestation in the Amazon rainforest is mostly driven by food production. The loss of large carbon-storing trees combined with the presence of methane-producing cattle is likely to intensify greenhouse gases in the Amazon.

What is deforestation in the Amazon rainforest?

Deforestation in the Amazon rainforest has significant environmental consequences. Trees store large amounts of carbon dioxide, and their removal contributes to increased greenhouse gas emissions, which are a major cause of climate change. Additionally, the cattle that are raised on cleared land produce methane, which is another potent greenhouse gas. As more trees are cleared to make way for agriculture and cattle farming, the carbon storage capacity of the forest is reduced, and more methane is released into the atmosphere.

Hence, the pie chart indicates that deforestation in the Amazon rainforest is mostly driven by food production. The loss of large carbon-storing trees combined with the presence of methane-producing cattle is likely to intensify greenhouse gases in the Amazon.

Learn more about the deforestation of Amazon here.

https://brainly.com/question/24381327

#SPJ2

how do you fix hair when you just got back from the beach? i washed my hair and it still hasn’t gone back to normal yet.

Answers

Answer:

perhaps your hair is a bit dry right now? have you tried deep conditioning it?

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Qual desses no faz parte das virtudes ensinadas no esporte?CompanheirismoHumildadeSer justo (Fair Play)Vencer independente do que precise ser feito To make a salad dressing you mix vinegar and olive oil in the ratio 2:5 how much olive oil is needed with 20 ml of vinegar If you were studying the human geography of the United states, which of these questions would you be most likely to ask. Predetermined Overhead Rate, Application of Overhead to Jobs, Job Cost, Unit Cost On August 1, Cairle Company's work-in-process inventory consisted of three jobs with the following costs: Job 70 Job 71 Job 72 Direct materials $1,600 $2,000 $850 Direct labor 1,900 1,300 900 Applied overhead 1,425 975 675 During August, four more jobs were started. Information on costs added to the seven jobs during the month is as follows: Job 70 Job 71 Job 72 Job 73 Job 74 Job 75 Job 76 Direct materials $800 $1,235 $3,550 $5,000 $300 $560 $80 Direct labor 1,000 1,400 2,200 1,800 600 860 172Before the end of August, Jobs 70, 72, 73, and 75 were completed. On August 31, Jobs 72 and 75 were sold.Required:1. Calculate the predetermined overhead rate based on direct labor cost.% of direct labor cost.2. Calculate the ending balance for each job as of August 31. Ending BalanceJob 70$Job 71$Job 72$Job 73$Job 74$Job 75$Job 76$3. Calculate the ending balance of Work in Process as of August 31.$4. Calculate the cost of goods sold for August.$5. Assuming that Cairle prices its jobs at cost plus 20 percent, calculate Cairles sales revenue for August. one key aspect/influence of Jacksons presidency what does the meaning behind Luca? pls hurry Warm-Up Type your response in the box. 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