Neurons are activated by which of the following?
a. by neurotransmitters
b. by impulses
c. by vision
d. by sensory

Answers

Answer 1

Answer:

A

Explanation:

Answer 2

Answer:

a. by neurotransmitters

Explanation:


Related Questions

There are two continents with an ocean between them. Today, the continents have very diferent plants and animals on
them. However, a geologist found fossils of the same type of organism on both continents. Millions of years ago when
this type of organism was alive, we know it lived in only one place. The geologist is using the fossils as evidence to argue
that the two continents used to be touching. How could the continents have gotten so far apart, and how long did it take
for this to happen?

Answers

Answer:

It took hundreds and thousands of year and  earth quakes and sea level rise have drowned some island parts and split the land and took it somewhere else

Explanation:

When the land got split apart some fossils were in the splitting of the land and got separated apart from each other this also helps with the history of our planet and what happened

please help!!
select all 4 stages of the cell cycle

Answers

Answer:

Interphase, Mitosis, and Cytokinesis

Explanation:

Photosynthesis uses sunlight to convert water and carbon dioxide into


A. oxygen

B. high-energy sugars (ie. glucose)

C. chloroplasts and oxygen

D. oxygen and high energy sugars (ie. glucoese)

Answers

Oxygen and sugars/glucose

pls help me i will give 5 stars and thanks

Answers

Answer:

Marine fish balance the salt by excreting extra salt and by also using their gills.

Explanation:

what stages of the cell cycle are included in interphase​

Answers

Answer:

Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.

Explanation:

Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.

hope this helps ^^

Write three facts about recessive heredity genes​

Answers

Answer:

Recessive is a quality found in the relationship between two versions of a gene. Individuals receive one version of a gene, called an allele, from each parent. If the alleles are different, the dominant allele will be expressed, while the effect of the other allele, called recessive, is masked...?

Explanation:

recessive genes are only expressed when an organism has two recessive alleles for that gene

why don't people get the smallpox vaccine anymore?

Answers

Answer:

After world health authorities declared smallpox had been eradicated from nature in 1980, Wyeth stopped making the vaccine. The U.S. Centers for Disease Control and Prevention (CDC) kept a stockpile for use in case of emergency. In 2003 this supply helped contain an outbreak of monkeypox in the United States.

Explanation:

Answer:

After world health authorities declared smallpox had been eradicated from nature in 1980, Wyeth stopped making the vaccine. The U.S. Centers for Disease Control and Prevention (CDC) kept a stockpile for use in case of emergency. In 2003 this supply helped contain an outbreak of monkeypox in the United States.

Explanation:

How does a tree move substances like water and glucose around?

Answers

Answer:

Most plants have green leaves, where the photosynthesis happens. When those sugars are made, they need to be given to every cell in the plant for energy. Enter phloem. The phloem cells are laid out end-to-end throughout the entire plant, transporting the sugars and other molecules created by the plant.

Explanation:

what is an example of a cell that has more mitochondria?

Answers

Answer:

muscle cells

Explanation:

Describe how the plasma membrane helps maintain homeostasis in a cell.

Answers

Answer:. By keeping cell contents within the cell, keeps cell organelles suspended in the cell, regulate what comes in and out of the cell or keep foreign material out, and allows for transportation of fuel, fluids, and waste.

Explanation: the plasma membrane is a jelly like fluid (hope this helps you :D )

How many amino acids would the follow strand of mRNA code for?
UGCCGAUAA
9
6
3
2

Answers

The answer is 3 amino acids
9 is the answer you’re looking for!

what type of star is an example of an average star?​

Answers

Answer:

our own sun is an average star

Explanation:

Location Four: Select two events that you predict will be observed. If I explore two oceanic plates at a convergent boundary, then I will observe:
-earthquakes
-faults
-ocean formation
-mountains
-volcanoes

Answers

Answer: Faults and mountains

Counting how many sunflowers turned toward the sun is an example of -
A-Qualitative data
B-pinions
C-Quantitative data
D- Beauty

Answers

Answer:

answer is (c) quantities data

Which one is the answer?

Answers

Answer:

Explanation:

A virus is a nucleoprotein and the genetic material is infectious. Speaking in strictly general terms, viruses infecting plants have single-stranded RNA. On the other hand, viruses that infect animals have either single or double-stranded RNA or they might have double-stranded DNA.

Answer:

Viral DNA

Explanation:

Guys pls help me!!!!!!!!!

Answers

Answer:

2. Cellular respiration.

:-) :-) :-) :-) :-) :-) :-) :-) :-)
WILL GIVE 30 POINTS IF YOU GET THE RIGHT ANSWER

Answers

Answer:

3. Spiral galaxies revolve around a single point and gas spinning arms of stars extending from the center

4. Star 4 will stay on the main sequence for the longest time.

Explanation:

A galaxy is a system of gases, dust, and billions of stars and their solar systems, and dark matter which are bound together by gravity. Types of galaxies based on structure are elliptical, spiral, irregular and barred spiral.

Spiral galaxies have a spiral shape consisting of a central bulge, a halo, a disk, and spiral arms. At the center of revolution of the galaxy is the bulge which contains older stars. The disk contains gas, dust and younger stars which extend as spiral arms. The halo is found around the bulge and contains old cluster of stars. Ab example of a spiral galaxy is our Milky Way galaxy.

4. The mass of a star is related to its luminosity as well as its position on the main sequence. High solar mass stars have high luminosity and therefore spend the least time on the main sequence whereas low solar mass stars have low luminosity and spend the most time on the main sequence.

Therefore, Star 4 having the lowest solar mass will spend the most time on the main sequence.

how can we determine the probability that an organisms expressed version of a trait will be passed on to it's offspring?​

Answers

Answer:

Punnet square

Explanation:

I am pretty sure this is it

                                                                                                 

By using Punnett square we can determine the probability that an organism's expressed version of a trait will be passed on to its offspring.

What is Punnett square?

Reginald. C Punnett invented the Punnett square, a square shape diagram used to forecast the genotype and phenotype of offspring from a breeding experiment by crossing the genes of the parents.

The diagram's number of Punnett squares is determined by the number of attributes employed. After creating the boxes, one parent's gene is placed on top and the other parent's gene is placed on the left side.

In the event of a monohybrid cross, just one letter with a single characteristic crosses one box, whereas two letters with two separate traits cross one box.

The number of alternative genotypes of offspring is obtained by crossing the characteristic.

Thus, the Punnett square helps in determining the probability that a trait will be passed on to its offspring.

You can learn more about Punnett square here:

https://brainly.com/question/3522181

#SPJ2

In the diagram below, Strands I and II represent complementary sections of DNA. The sequence of Strand I is shown. What is the sequence of Strand II?
Strand I CTAC Strand II ????

AGCA
CTAC
TCGT
GATG


STRAND 1 AND 2 ARE THE DIAGRAM!!!!

Answers

Answer:

GATG, TCGT, ACGA, CATC

Explanation: C goes with G, and A goes with T but in a RNA then the T swaps with a U

The sequence displayed by Strand II would be:

A). GATG

RNA is denoted as the RiboNucleic Acid that exemplifies a molecule/atom which has similar characteristics as of the DNA. However, in RNA, the letter 'T' is replaced with "U" and vice versa. In the given diagram, Strand I shows "CTAC" and thus, Strand II will show "GATG."Thus, option A is the correct answer.

Learn more about "Sequence" here:

brainly.com/question/18109692

Which food chain from beginning to end is correct?


grass, hawk, snake, frog


owl, mouse, corn, snake


lion, rabbit, bobcat, plant


leaves, grasshopper, snake, fox

Answers

Answer:

Leaves, grasshopper, snake, fox

pls help me lol.....

Answers

Answer:

79

Explanation:

6+7

Answer:

In yeast, the extra reactions make alcohol, while in your muscles, they make lactic acid. Fermentation is a widespread pathway, but it is not the only way to get energy from fuels anaerobically (in the absence of oxygen).

Explanation:

Describe the impact of human activity on natural resources - (discuss resources such as energy, minerals, forest and marine include overpopulation and over fishing)

Answers

Answer:

As the human population has grown, the need for more land has caused an increase in the cutting down of forest lands for habitation and farming. The result has been an increase in soil erosion, an increase in species extinction from habitat loss, and a reduction of oxygen supplied by the trees, as well as lower amounts of carbon dioxide being removed from the atmosphere. Industrial and personal use of fossil fuels has dramatically increased the amount of air pollution in the atmosphere while systematically using up the supply of the non-renewable resources such as coal, oil and natural gas

Explanation: Hope this helps! ^^

Answer:

Overpopulation can result in a/an  

scarcity

 of natural resources.

Explanation:

yes

¿Que pasa cuando ingerimos algunas sustancias adictivas? A: Afectan nuestro sistema circulatorio B: Afectan nuestro sistema respiratorio C: Afectan principalmente a nuestro sistema nervioso central

Answers

Answer:

C: Afectan principalmente a nuestro sistema nervioso central

Explanation:

Al ingerir sustancias adictivas, el principal afectado o influenciado es el sistema nervioso. Aunque existen diversas formas de acción de las  sustancias adictivas, en general, éstas actúan afectando el pasaje dopaminérgico.  

La dopamina es un neurotransmisor liberado por el sistema nervioso central que causa sensación de placer. Es conocido como la "hormona del placer" y esta relacionado con la evolución de las adicciones. Las diversas sustancias adictivas alteran el funcionamiento normal del sistema nervioso, provocando un exceso de liberación de dopamina. Esta excesiva sensación de placer al consumir sustancias adictivas es lo que nos lleva a seguir consumiendo, para repetir la experiencia placentera, generando adicción. Al hacerlo, los mecanismos de recompensa del cerebro se ven afectados, siendo la causa del elevado nivel de dopamina en el organismo. Este aumento anormal del neurotransmisor provoca una respuesta de parte del organismo que radica en disminuir la cantidad de receptores dopaminérgicos. Al hacerlo, la persona adictas sienten menos placer y mas necesidad de consumir sustancias, para alcanzar el mismo efecto de euforia o uno incluso superior.

The most common type of hand/wrist fracture occurs from car accidents.
OA.
True
OB.
False

Answers

Answer:

true

Explanation:

The bones that form the wrist are fragile and can be easily fracture when subjected to the strong blunt trauma that occurs during a car accident. The most common wrist bone to be fractured is the radius. Common car-accident related wrist injuries include: Scaphoid fracture.

Answer:

true

Explanation:

i got it right on plato

If John has12apples and eats 10 gown many is left

Answers

Answer:

Two

Explanation:

Answer:

two apples are left because 12 minus 10 is 2

When summarizing the process of transcription in a cell as a gene is used to build a polypeptide, which of these statements

accurately reflects the process of transcription? You may choose all that apply.

les)

A)

An mRNA molecule is produced in the nucleus of the cell.

B)

The ribosome attaches to the DNA to build a polypeptide,

The resulting RNA molecule is a complement of the gene on the DNA.

D)

The RNA molecules contains three nucleotides in a row whose bases form

a codon.

E)

A polypeptide is synthesized based on the sequence of nucleotides on the

tRNA molecule.

Answers

Answer:A. An mRNA molecule is produced in the nucleus. C. The resulting RNA molecule is a complement of the gene on the DNA. D. The RNA molecules contains three nucleotides in a row whose bases form a codon.

Explanation: tRNA and ribosomes aren’t used in protein synthesis until translation. The tRNA molecule sequence is not used in either transcription and translation

The statement that reflects the process of transcription is

An mRNA molecule.The resulting RNA molecule.It contained three nucleotides. What is the process of transcription:

It does include:

An mRNA molecule is produced in the nucleus of the cell.The resulting RNA molecule is a complement of the gene on the DNA.The RNA molecules contains three nucleotides in a row whose bases form.

Hence, A, C and D are correct.

learn more about RNA here: https://brainly.com/question/24874655

If a species has 35 % adenine in it’s DNA what is the percent of the other three bases

Answers

Answer:

35% thyamine, 15% guanine and 15% cytosine

Answer:

35% thymine, 15% guanine and 15% cytosine

Explanation:

35% thymine, 15% guanine, and, 15% cytosine because the exact same amount of thymine would pair up with adenine, thus thymine has to be 35%. Thymine and adenine take up 70% of the DNA the rest has to equal 30%. Guanine and cytosine make up the rest, which is 30%, thus we have to split it evenly because they pair up with each other. Therefore, guanine and cytosine equal 15%.

What happens if there is a mutation in the DNA? What are the effects of a mutation?​

Answers

Answer:

When a gene mutation occurs, the nucleotides are in the wrong order which means the coded instructions are wrong and faulty proteins are made or control switches are changed. The body can't function as it should. Mutations can be inherited from one or both parents. They are present in the egg and/ or sperm cells.

Explanation:

i look it up

What are the differences between cartilaginous fish and bony fish?

Answers

Answer:

Explanation .   :However, the most obvious disparity between the two types of fish is the composition of their skeleton. As the name suggests, “bony fish” have a skeleton composed of only bones while a cartilaginous fish has a skeleton made entirely of cartilage.

Bone fish have a bone skeleton and cartilaginous fish have a skeleton made of cartilage

During which type of asexual reproduction is a small portion of cytoplasm and half of the chromosomes separated from the rest of the cell?
1.budding
2.sporulation
3.. binary fission

Answers

The answer is budding
Other Questions
HELP PLEASE!!!!!!!!!!! What is the sum of 8 yards and 5 feet?10 yards13 yards21 feet29 feet (GIVING BRAINLIEST AND 12 POINTS) Gabe bought three watermelons for $12. How much would it cost to buy five watermelons? Simplify each expression.remember you can use combining like terms or any of the properties from 6.067y + 7y = ______________________5x + 3x = ______________________8y + 2x = ______________________2(4x + 2) = _____________________2(3x + 3) = _____________________8x + 4 = _______________________ Use of a computer-based system to transfer money from the drawer's account to the payee's account is called a(n)None of theseAutomatic WithdrawalOnline BankingElectronic Funds Transfer . What is 6 8ths x 5? Draw a model of your choice to help What is the Least Common Multiple for 12 and 30 Im giving 20 points and brainliest if answered correctly The players stopped and ran to the sidelines when the whistle washeardWhich revision corrects the inappropriate shift in verb voice?A. Stopping and running to the sidelines, the whistle was heard by theplayersB. The players stopped and ran to the sidelines when they heard thewhistle.C. The players stopped and ran to the sidelines when the whistle wasblownD. When the whistle was heard, the players stopped and ran to thesidelines The flash flickered and then died I need help finding the perimeter If x=8 and y=2, evaluate the following expression: 3xy2 What role dose the government take in capitalism How are cells, tissues, and organs related?? ;>; Complete the table so a linear function is represented. SHOW ALL WORK! brief description email etiquette i will brain list i will brain list Please helppppppp!!!! what is the value of (f 9)(144)? what factors influence our access to healthy food? Which of the following documents is credited with being the original example of the American value of self-government?A.the Body of LibertiesB.the Mayflower CompactC.the Virginia House of BurgessesD.the Fundamental Orders of Connecticut