1)What are some examples of specialized cells
and what do they do?
2) Why is the specialization of cells in organisms
significant and important for homeostasis?



























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Answers

Answer 1
Answer:
mast cells, melanocytes, nerve cells, cardiac muscle cells
Explanation:
There are lots of examples of specialized cells, but here are four.
Mast cells - release histamine and heparin, which are important in directing the inflammatory response. These cells direct the first line of defense in preventing infection
Melanocytes - release melanin, which is a brown pigment that gives skin and hair its color. This is an important process because melanin reflects UV light, which can damage DNA in skin cells
Nerve cells - specially designed to allow nerve impulses (called action potentials) to travel throughout the body. They use electrical signals to allow the whole body to communicate
Cardiac muscle cells - responsible for muscle contraction of the heart. They have specialized structures like intercalated discs that allow rapid communication between cells. This is important because every cell in the heart has to contract at the same time to allow blood to flow properly throughout the body.
The specialization of cells in organisms is important because it allows us to do many specialized functions. Non-specialized cells are pretty limited in what they are able to do, so they are small and inefficient. Specialized cells also help prevent disease, which is the opposite of homeostasis.

Related Questions

where did you get this information?

Answers

Answer:

a friend who helped me.sometimes I try answering the questions my self.also I get some answers from this place.

True or False: Because the microbiome is important for fitness, many organisms have developed specific strategies for passing the microbiome on to progeny.

Answers

The statement 'because the microbiome is important for fitness, many organisms have developed specific strategies for passing the microbiome on to progeny' is TRUE. It is natural selection in action.

According to the evolutionary theory proposed by Darwin, natural selection is the mechanism by which species change (evolve) to adapt to particular environmental conditions.

In this case, the microbiome represents an evolutionary adaptive mechanism, thereby natural selection will tend to favor individuals that have a beneficial microbiome.

In consequence, individuals having a beneficial microbiome will have more chances to reproduce and survive (i.e., they have higher adaptive fitness), thereby they also have more chances to pass this adaptive trait to the next generation.

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Which of the following factors is most likely to be linked to secure attachment in infants?
O A. Physical comfort
O B. Maternal sensitivity
O C. Social referencing
O D. Reciprocal socialization

Answers

Answer:

the answer is A

Explanation:

According to Erikson , physical comfort and sensitive care are keys to establishing a basic trust in infants.

Why is grafting considered asexual reproduction and not sexual
reproduction?

Answers

Answer:

The reason that grafting is not considered sexual is because there is no conjoining of male and female germ cells. (there is no germination like how sperm and egg cells do). So its considered asexual

Explanation:

Indicater I need the meaning

Answers

Answer:

indicator can mean two different things,

1. a thing, especially a trend or fact, that indicates the state or level of something.

2. a gauge or meter of a specified kind.

Hope this heled!

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Variation in offspring is important in maintaining genetic diversity within a population . Which of the answer choices indicates a mechanism of introducing genetic variation in a population? Select all that apply.
A crossing over during meiosis B ) fertilization of an egg by a sperm
C) independent assortment during meiosis
D) mitosis producing two new daughter cells
E) binary fission resulting in two bacterial daughter cells

Answers

Answer:

A B and C

Explanation:

Crossing over breaks, exchanges and rejoins chromosomes at corresponding points so introduces genetic variation. Because of crossing over offspring has characters of both parents.

Also independent assortment means that during separation of the chromosomes in anaphase, any chromosome can pair up with another. So for example if we have one parent plant with yellow and wrinkled seeds and other one with green and round seeds, then the gene responsible for round seed can pair up with either of the genes responsible for yellow seeds or green seeds. Hence the characters of offspring differ from the parents, it can have yellow round seeds or yellow wrinkled seeds and so on.

Mitosis will only produce 2 daughter cells which are exactly like their parent cells and are also identical to each other. Binary fission is a form of Asexual reproduction so it does not involve shuffling of genes from 2 parents.

Because of fertilization of egg with a sperm the maternal genes and paternal genes mix together. So it also produces genetic variations.

Tundra has mostly mosses, lichens, and grasses. What abiotic factors prevent other vegetation from growing in this biome?

Hot summers and cool winters; low rainfall

Cold winters, high precipitation, and lack of trees

Permanently frozen soil and low precipitation

High precipitation and little seasonal change

Answers

Answer:

C

Explanation:

i did the test

Tundra is located on the artic zone. Therefore, permanently frozen soil and low precipitation is the reason of hindered plant growth.

What is a biome?

A biome is an ecological unit that depicts the occurrence of a biological community in response to the particular climate and the environment.

Biomes support variety of habitats across the different continents. Various biomes together constitute a biosphere.

A biome is identified on the basis of temperature and precipitation it receives annually. The presence or existence of organisms is dependent on these two factors.

Based on topography, biomes can be classified into terrestrial, fresh water and marine biomes.

Some of the well known examples of biomes include tundra region, taiga region, grasslands, desserts and forests.

There are also special types of biomes known as ecotones where the two biomes merge. Salt marshes are the example of ecotone.

Thus, biome is the life supporting unit in ecology.

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A student named Janine says that the measure of side b is 64 ft. Please state whether this is correct or incorrect. If this is incorrect, state the length of b. Explain your answer in complete sentences. Use vocabulary such as Pythagorean Theorem, side, hypotenuse, square root etc.

Answers

The measure of side b as 64 ft is incorrect. The accurate measure would be 8 ft.

According to the Pythagorean theorem, the square of the hypotenuse of a right-angle triangle is the sum of squares of the opposite and the adjacent sides. Mathematically:

[tex]hypotenuse^2 = opposite^2 + adjacent^2[/tex]

In this case, the hypotenuse = 10 ft, the opposite = 6 ft and the adjacent = b

Hence,

b^2 = 10^2 - 6^2

       = 100 - 36

          = 64

b = √64

     = 8 ft

Thus, the side b is 8 ft and not 64 ft.

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What color do you see when all colors of light are reflected? (2 points) Group of answer choices Black Blue Maroon White

Answers

Answer:

white

Explanation:

Answer:

white colour

Explanation:

when all colours are reflected back then we see white colour

Question 1
Which is a correct definition of carrying capacity?
A
the largest number of different species that a particular habitat can support indefinitely with the resources available
B
the smallest number of different species that a particular habitat can support indefinitely with the resources available
С
the largest number of individuals of a certain species that a particular habitat can support indefinitely with the resources available
D
the smallest number of individuals of a certain species that a particular habitat can support indefinitely with the resources available
C2021 Illuminate Education, Inc.
o

Answers

Answer:

the answer is A

Explanation:

I need help with dis there is two parts to it Bc there are graphs

Answers

Answer: its in the center

Explanation:

In the example of the predator/prey web in the grassland community on Bylot Island, a rise in the snowy owl population would have what effect on the snow goose

Answers

Predator/prey web relationship is found in all ecosystem. A rise in the snowy owl population would have what effect on the snow goose in that The snow goose population would rise due to lemming, and subsequently fox, populations declining.

Food webs often has predator/prey relationships.  They show the direct relationships in ecosystems such as the predator-prey relationships.

Predators includes big cats such as cheetahs and lions. They often hunt prey in temperate grasslands.

In North America, predators such as wolves, coyotes and foxes mostly hunt for mice, rabbits and deer.

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Explain how damaged DNA in a stem cell could cause a large impact to an organism

Answers

DNA damage can affect normal cell replicative function and impact rates of apoptosis (programmed cell death, often referred to as 'cellular senescence'). Alternatively, damage to genetic material can result in impaired cellular function, cell loss, or the transformation of healthy cells to cancers.

how do sugars from cyclic hemiacetals

Answers

Answer:

glucophranoze is the answer

4. What factors might affect bone strength?

Answers

Answer:

Bone strength is influenced by changes in the structure (size and shape) and composition [cortical (compact) bone, trabecular (sponge-like) bone, amount of cartilage] of the bone. 6 A high peak mass at a young age and the decrease of bone loss at a later age are two ways to reduce osteoporosis risk.

Explanation:

Answer:

Bone need enough Calcium

Explanation:

The amount of calcium in your diet. A diet low in calcium contributes to diminished bone density, early bone loss and an increased risk of fractures.

Physical activity. ...

Tobacco and alcohol use. ...

Sex. ...

Size. ...

Age. ...

Race and family history. ...

Hormone levels.

An individual has the genotype tt. He marries a woman who can taste PTC paper. They have 2 kids - one who can taste and one who can't. Based upon this information, what can you say about the mother's genotype?

Answers

Answer:2

Explanation:

26

________________________ happen when pairs of bonded bases in a double strand of DNA get replaced with different pairs.

_________________________ happen when extra base pairs are included in an existing DNA sequence.

_________________________ happen when base pairs in an existing DNA molecule get removed from it.

Fill in the blanks correctly

Answers

Answer:

Explanation:

A base pair is two chemical bases bonded to one another forming a "rung of the DNA ladder." The DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

What is diabetes insipidus? How would the urine of someone with diabetes insipidus compare to that of someone with diabetes mellitus?
help plz​

Answers

Answer:

In diabetes mellitus, the level of glucose in your blood, also called blood sugar, is too high. Your kidneys try to remove the extra glucose by passing it in your urine. In diabetes insipidus, your blood glucose levels are normal, but your kidneys can't properly concentrate urine.

Explanation:

Explanation:

 In diabetes insipidus, your blood glucose levels are normal, but your kidneys can't properly concentrate urine.

which is true about a daughter cell produced by mitosis

Answers

Answer:

what are the options?

Explanation:

Answer:

it contains no DNA

Irradiated mice given a stimulatory antigen fail to mount an adaptive immune response. A robust response can be restored by:

Answers

Answer:

A bone marrow transplant (BMT)

Explanation:

An irradiated mouse would have immune hypocellularity or acellularity.  A BMT would replenish its immune system to mount a robust immune response.

I need help with dis too plz?

Answers

Answer:

DNA-RNA-MRNA

Explanation:

DNA,RNA,mRNA
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please help me, i’ll give brainlist and points please don’t be one of those people that go “link below”

Answers

Answer:

The answer is 4.

Explanation:

First step :)

Which of the following materials is a good electrical conductor?

rubber


ceramic


plastic


copper

Answers

Answer:

copper

Explanation:

Copper has the best electrical conductivity of any metal, except silver. A good electrical conductivity is the same as a small electrical resistance. An electric current will flow through all metals, however they still have some resistance, meaning the current needs to be pushed (by a battery) in order to keep flowing.

What happened to most freedmen after the Civil War?
A. They got jobs in the new tobacco factories.
B.They received 40 acres and a mule to begin their own farms.
C.They got jobs working on the railroad.
D.They rented farmland from white landowners.

Answers

Answer:

D. They rented farmland from white landowners.

Explanation:

Answer:

They rented farmland from white landowners.

Explanation:

I took the test

how can a cell corret the DNA if there is a mutation?​

Answers

Answer:

if there is a mutation in genetic material then cell cannot correct it

What are fontanels?

Answers

Answer:

a space between the bones of the skull in an infant or fetus, where ossification is not complete and the sutures not fully formed. The main one is between the frontal and parietal bones.

Heat can be caused by
A. a decrease in friction
B. an increase in friction
C. friction remaining at zero

Answers

Answer:

B. an increase in friction

Explanation:

Answer:

B an increase of friction

Explanation:

Rub your hands together and you will probably feel it warm up a little, that's the friction.

From the THREE LAWS OF MOTION, choose 1 law then state the law and give an example.

Answers

Answer: The first low of motion states that an object at rest remains at rest and an object in motion remains in motion unless acted on by an unbalanced force. This is also knows as the law of inertia. One example of this is a ball. A ball stays put unless you push in which case it keeps on moving. However, it stops because of the force known as friction.

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Answer:

Newton's first law of motion states that an object at rest remains at rest and an object in motion remains in motion with the same velocity unless acted upon by what we call an unbalanced force

Explanation:

For example, my cup of coffee is resting on my kitchen table as I make this lesson. The force of gravity pulling down is balanced by the force of my kitchen table pushing up on my cup of coffee. Now, if I am to move my coffee, I must apply an external force to disrupt the balance. Thank goodness my muscles are strong enough to apply such a force so I can enjoy my cup of coffee. Ah, now that's good joe! Newton's first law of motion is also referred to as the law of inertia

DNA and RNA. What is the difference and where do they take place.

Answers

Answer:

below

Explanation:

The main difference of both DNA and RNA is the fact that location of them.

Locations:

DNA -> Nucleus of CellRNA -> Cytoplasm and Ribosomes

Best of Luck!

Many industrialized countries exist in an ecological deficit due to their lack of productive land, overproduction of waste, or low freshwater supplies. Which scenario describes a way to create an ecological surplus for an industrialized country?

Import beef and soy products into the country

Export garbage and wastes to other countries

Change farming techniques to conserve soil

Allow unlimited freshwater resources for all

Answers

Answer: change farming techniques to conserve soil

Explanation:

The scenario that describes a way to create an ecological surplus for an industrialized country is the change farming techniques to conserve soil. The correct option is C.

What are farming techniques?

Farming technology, the system of practices used in crop production The goal of agricultural technique is to ensure high crop yield with minimal labor and capital investment per unit of realized product.

The circumstance that characterizes a manner for an industrialized country to generate an ecological excess is changing farming techniques to conserve soil.

Thus, C is the correct answer.

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