4
A neurone is a type of specialised animal cell.
(a) (i) Neurones develop from unspecialised cells.
State the name of these unspecialised cells.

Answers

Answer 1

Answer:

Stem cells

Explanation:

Stem cells are immature or unspecialized cells

Answer 2

Neurons develop from unspecialized cells and unspecialized cells are stem cells.

What are the functions of stem cells?

Embryonic stem cells are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage pre-implantation embryo. Human embryos reach the blastocyst stage 4–5 days post fertilization.

Stem cells are the body's raw materials — cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells.

The cells of the bone marrow produce all of your healthy blood cells, including red blood cells, white blood cells, and platelets.

Learn more about stem cells:

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Related Questions

What do you think would be a good reason to build an artificial island?

Answers

Answer:

business as source of income

Explanation:

lots of people really like exploring in amazing places so island can be one of the most beautiful and wonderful place to explore at

Which helps prevent errors in DNA replication?
A. DNA polymerase makes five DNA molecules from each single strand, and keeps the best five.
B. There are no complementary base pairs in DNA
C. DNA is produced in the ribosomes
D. DNA polymerase checks the DNA for errors

Answers

D. This is to “proofread” the DNA
Answer: Complementary base pairing reduces errors.

Why do skin cells grow back when skin cells get damaged

Answers

Answer: The ability of the skin to heal even after considerable damage has occurred is due to the presence of stem cells in the dermis and cells in the stratum basale of the epidermis, all of which can generate new tissue. ... These active cells produce collagenous fibers and ground substance. Hope this helps can u give me brainliest

Explanation:

3. How do genes
support the
evidence for
evolution?

Answers

The DNA sequence of gene molecules show similarities and differences which can be used to determine species' relatedness.

The total wind power capacity in the united states in 2000 was about 2540MW. By 2015, the total wind power capacity in the United States was about 72,500MW Calculate percent change in the total wind power capacity in the United States from 2000 to 2015. Show the work

Answers

Answer:

2754.33% increase

Explanation:

The total wind power capacity in the united states increased between 2000 and 2015. The percent change in the total wind power capacity in the United States from 2000 to 2015 is given by the formula:

Percent change = [(total wind power capacity in 2015 - total wind power capacity in 2000) / total wind power capacity in 2000] * 100%

Percent change = [(72500 MW - 2540 MW) / 2540 MW] * 100%

Percent change = 2754.33% increase

Power is the amount of energy transferred or converted per unit of time. In the International System of Units, the unit of power is the watt, equal to one joule per second.

The total increase is 2754.33% increase

The total wind power capacity in the united states increased between 2000 and 2015. The percent change in the total wind power capacity in the United States from 2000 to 2015 is given by the formula:

Percent change = [(total wind power capacity in 2015 - total wind power capacity in 2000) / total wind power capacity in 2000] * 100%

Percent change = [tex]\frac{[(72500 MW - 2540 MW)}{ 2540 MW }* 100%[/tex]

After solving the equation the percent change = 2754.33% increase.

For more information, refer to the link:-

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I’ll mark as BRANLIEST!!

30 POINTS!!

Please help me!!

How does DNA change from generation to generation in asexual organisms?

1. Cloning
2.Mutation
3.Variation
4. Gene pairing

Answers

Mutation- asexual means only one parent so it would be a clone but when mutated it changes

What does selectively-permeable mean?
Nothing gets through
The cell lets only large substances through
The cell controls what passes in and out of the cell

Answers

The cell controls what passes in and out of the cell

Answer:

The cell controls what passes in and out of the cell.

Explanation:

Two identical alleles for the same gene present in a cell

Answers

Answer:

The correct answer is D.

What is the function of the structure identified by the red arrow? (2 points)


food capture

mobility

DNA transfer

Protection

Answers

Note about the question:

You will find the image in the attached files

Answer:

Protection

Explanation:

The red arrow seems to be pointing to the membrane of bacteria cells. Probably the green structure also includes the cell wall.

Bacteria are a wide group of unicellular prokaryotic microorganisms with a simple structure and sized between 1 to 10 micrometers. These organisms lack a nucleus, nuclear membrane, and organelles. They only present plasmids and ribosomes. They have a cell membrane and a cell wall that protects the cell. Some of them can also show a capsule.

Membranes and cell walls delimitate and protect the cells from different extracellular factors that might damage them. The membrane constitutes a selectively permeable barrier that allows the free pass of only a few substances while it blocks others.

How are green algae related to land plants? (Select all that apply.)
both have chloroplasts
both lack a cell wall
both have a cell nucleus
both lack a cell nucleus
both have a cell wall

Answers

Answer:

bro whats the real answer i got a 70 percent bc the person who answered and the owner of this question said thank you i thought it was legit dang

Explanation:

The green algae relate to land plants in the following ways:

They both have chloroplasts.Both have a cell nucleus.Both have a cell wall.

Thus, the correct options are A, B, and E.

What are Green algae?

Green algae may be defined as a type of eukaryotic organism that has photosynthetic pigments a and b. Such a type of algae also stores carbohydrates as starch.

Green algae mostly live in freshwater environments, ranging from unicellular flagellates to more complex multicellular forms.

Both land plants and green algae have a photosynthetic organelle known as chloroplast. The cell wall of land plants as well as green algae are made up of cellulose, hemicellulose, and pectins.

Both eukaryotic classifications possess a well-defined cell nucleus, nuclear membrane, and other membrane-bound cell organelles.

Therefore, the correct options for this question are A, B, and E.

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I NEEEEDDDD HEEELPPP PLEASE

Answers

Answer:

25%

Explanation:

Each box has 25 %

because 100 ÷ 4 = 25

Heterozygous is different, homzygous is same

you can remember homzygous is same alleles by remembering man likes man (the word for it, brainly won't let me say it) which is same gender interest.

25% is the correct answer for this question I hope this helped I NEED

1 What are four of the qualities required for a healthy relationship ​

Answers

Answer:

Truthfulness. Both of you are honest with each other, not just because you have to, but because you enjoy sharing the truth together.

Kindness. You help each other without expecting in return. ...

Compassion. You feel each other’s joy and pain. ...

Respect. ...

Explanation:

does exocytosis require energy?

Answers

Answer:

There are two types of vesicle transport, endocytosis and exocytosis (illustrated in the Figure below). Both processes are active transport processes, requiring energy. Illustration of the two types of vesicle transport, exocytosis and endocytosis.

Explanation:

So in a simple explanation yes they require energy:)

Take the terms below and use them to write a short paragraph describing how an
ecological community could function.

- sunlight
- precipitation
- temperature
- soil
- plants
- animals
- herbivores
- carnivores
- omnivores
- decomposers

*pls help me*

Answers

Answer:

Carnivores will feed on herbivores, omnivores, and other carnivores in an ecosystem. A natural community depends on the presence of carnivores to control the populations of other animals. Large carnivores include wolves and mountain lions. A large carnivore might hunt down large herbivores such as elk and deer. Medium-sized carnivores include hawks and snakes, and these animals typically feed on rodents, birds, eggs, frogs, and insects. Examples of small carnivores include some smaller birds and toads. These carnivores may eat insects and worms. Carnivorous animals have strong jaws and sharp teeth to enable them to tear and rip prey. These animals often have long, sharp claws that they also use to tear prey. Carnivores depend on sufficient prey in the food chain to give them the food they need. If the herbivore population or the population of other carnivores declines in an ecosystem, carnivores may not survive.

what type of characteristics would be associated with type IIx fiber.


Answers

Answer:

Type IIX fibers are characterized by high force/power/speed production and low endurance.

Explanation:


Why could tropical rain forests be called the "medicine chest of the Earth?

Answers

Because it gives food for LOTS of living organisms
It gives lots of food

can someone pls answer the first 2

Answers

There will be a total of four haploid cells produced at the end

There will be one chromosome at the end of each cell

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Answers

The answer is c bc the deeper the layers or geographic properties are which is dirt or soil land rocks or other properties are due to overtime probably thousands or millions of years of eroding or other phenomenons

Answer:

h

Explanation:

do all animals go through metamorphosis during their life cycle

Answers

Answer:

These metamorphosis examples are of both insects and amphibians -- the only creatures that go through this process. Amphibians are the only animals with a backbone that can do it.

Answer:

the frog and the ladybug go through a metamorphosis. The ladybug larva looks like a completely different insect from its final adult form. The frog goes through a tadpole stage in which it lives underwater, and then develops into a frog that can live on land.

Explanation:

Identify the phenotype of the offspring represented by the question mark in Figure 11-4:

Answers

Answer:

The guinea pig's phenotype (physical appearance) will be rough white hair

Which option would be a good course of action in the followingscenario?
An agronomist discovers that the plants in a field are all infected with a fungus.
A. immediately apply a fungicide
B. do nothing
C. test the fungus to determine if it is beneficial to the plants
D. burn the crop before the infection spreads to other fields

Answers

Answer:

C. test the fungus to determine if it is beneficial to the plants

Explanation:

Some fungi are  good so it's good to check and see what effect it has on the plants.

Answer: test the fungus

Explanation:

just did it edge 2021

How does the body regulate dopamine

Answers

Answer:

Self discipline

Explanation:

Answer:

Inside the brain, dopamine plays important roles in executive functions, motor control, motivation, arousal, reinforcement, and reward, as well as lower-level functions including lactation, sexual gratification, and nausea. The dopaminergic cell groups and pathways make up the dopamine system which is neuromodulatory.

Explanation:

Striatal dopamine release is mediated by vesicular exocytosis. Active zone-like sites are required for rapid and efficient dopamine secretion. Localized dopamine release generates signaling hotspots and is powerfully regulated. Some striatal dopamine release is independent of ascending action potentials.

How do introduced species become established in a new ecosystem

Answers

introduced to a habitat similar to their own introduced to a habitat different than their own outcompete native species generally have no native predators generally have native predators often have high reproductive rates often have low reproductive rates can tolerate a range of conditions
introduced to an environment close to their own outcompete native species usually have no native predators generally have native predators often have high reproductive rates often have low reproductive rates may tolerate a variety of conditions

(Hope this helps!!!) Can I pls have a brainliest??

PROYECTO GENOMA HUMANO Fecha Acontecimiento 1866 1868 1951 1953 1956 1958 1960 1970 1973 1977 1978 1975-1979 1982 1985 por favor escriban un acontecimiento en cada año

Answers

Answer:

ok 1866

Explanation:

Why is the answer to this question c and not b?

Answers

Because there is a higher concentration of solute on the left side of the membrane. For example since salt is solute, it will draw the water to that desired direction, therefore resulting in the water molecules moving to the left. Hope this helped! :!

Answer:

Option C

Explanation:

See on left side there are more particles on comparing to right side

The concentration of solute is more on left sideSo as diffusion has to happen then the molecules will move from left to right

Which molecule is primary responsible for the differentiation of cells

Answers

RNA molecules is the right answer... RNA molecules are an important type of intracellular differentiation control signal. The molecular and genetic basis of asymmetric cell divisions has also been studied in green algae of the genus Volvox, a model system for studying how unicellular organisms can evolve into multicellular organisms.

Hope it helps you...

Look at the graph to the right. What does it show?

Answers

Answer:

The graph shows that corals in the Caribbean reefs are declining

Explanation:

List 5 Biotic Factors of This Ecosystem Pictured.

Answers

Answer:

I'm gonna give you more than 5 so you can choose:

seal, human, whale, bird, shark, grass, coconut tree, and crab.

Explanation:

Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction. Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms.

How do the laws of genetics (discovered by Mendel) govern what variations can and cannot be
possible in the offspring of any 2 sexually reproducing organisms? (List and define each of the 3 laws as
you answer this questions

Answers

The Mendel's laws of inheritance include law of dominance, law of segregation and law of independent assortment.

Some of the key elements of Mendel’s original model were:
Heritable traits are determined by heritable factors, now called genes. Genes come in pairs (that is, are present in two copies in an organism).
Genes come in different versions, now called alleles. When an organism has two different alleles of a gene, one (the dominant allele) will hide the presence of the other (the recessive allele) and determine appearance.
During gamete production, each egg or sperm cell receives just one of the two gene copies present in the organism, and the copy allocated to each gamete is random (law of segregation).
Genes for different traits are inherited independently of one another (law of independent assortment).

Please somebody help me with this.​

Answers

Answer:

Making food

Explanation:

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