Answer:
Myelin sheaths protect, electrically insulate fibers and increase the speed of transmission of nerve impulses. What structural and functional type of neuron is activated first when you burn your finger? Unipolar (psuedounipolar) neurons that are sensory (afferent) neurons.
Answer:
A neuron is activated by other neurons to which it is connected. In turn, its own activation stimulates other connected neurons to activation
Explanation:
How many X chromosomes do males have? _______
Answer:
There are 2 sex chromosomes – X and Y. Females have 22 autosomes and two X chromosomes, i.e., 22 + XX, while males have 22 autosomes and an X and Y chromosome each, i.e., 22 + XY. hope it helps.
basically 22
Explanation:
Answer:
one
Explanation:
females have two and males have one
HELP ASAP!!!
Radiation continues to be detected in the area surrounding the abandoned
nuclear power plant at Chernobyl, which experienced a nuclear accident in
1986. How does this fact illustrate a concern that people have with nuclear
energy as a source of electricity?
O A. It shows that any type of radioactive material will have harmful
effects on organisms in the environment.
O B. It shows that chain reactions are still happening in the reactors at
the nuclear power plant.
O C. It shows that radioactive materials released at nuclear power
plants remain radioactive and persist in the environment.
O D. It shows that nuclear power plants always leak a small amount of
radiation into the environment.
Answer:
C)
Explanation:
I hope this helps :)
Answer:
its D.
Explanation:
just took quiz
what is a tool that shows phenotypes of genetically related family members
Answer: A Tool that Shows Phenotypes of Genetically Related family Members, Are A pedigree.
Explanation:
Complete a Punnett square that shows a test cross for a tall pea plant (RR x rr). Place the plant to be tested at the top of the Punnett Square.
I'm not 100% sure what you're asking but is this what you mean?
All plants are tall.
r r
R Rr Rr
R Rr Rr
Answer: In pea plants, a tall stem is dominant (R) over a short stem (r).
This means the genotype of the tested plant is RR so that one would be on top of the Punnett's square.
The Punnet's square would be as follows:
(I got this right on my assignment)
What does the theory of evolution contribute to conservation biology?
A) It helps scientists understand how populations and species are related, and this knowledge can be used to help these populations and species survive.
B) It helps scientists understand how populations and species are related, and this knowledge can be used to capture and breed the fittest organisms in these populations and species.
C) It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to help these populations and species survive.
D) It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to capture and breed the fittest organisms in these populations and species.
The answers to The History Of Evolutionary Theory quiz.
1. A. natural selection, migration, and mutation
2. C. the production of pesticide-resistant potatoes.
3. A. It is based on the idea that all life is related.
4. B. It explained how evolution works.
5. B. They can be passed on to offspring.
6. C. the genetic variations that are best suited for their environment
7. D. the best explanation for a set of data and observations
8. C. a change in a population's gene pool
9. C. It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to help these populations and species survive.
10. C. When exposed to antibiotics, most bacteria in a population die, but some survive and live to reproduce.
Edge 2021
Which mRNA sequence complements the DNA sequence below?
The right half of a D N A molecule
Four m R N A molecules
A. Sequence A
B. Sequence B
C. Sequence C
D. Sequence D
Answer:
sequence c
Explanation:
i just took the biology learning gizmo five questions
Transcription is the process of mRNA synthesis. It occurs in the nucleus before translation. During transcription, RNA bases pair DNA bases, replacing Thymine with Uracyl. You will find the example in the explanation.
Note: The DNA sequence is missing, so I will provide a new sequence and explain the procedure. I suggest you perform the same steps with your molecule fragment and reach the correct mRNA.
Protein synthesisProteins synthesis is done in two stages: transcription and translation. The whole process begins in the nucleus and finishes in the cytoplasm.Protein synthesis initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA. Once the new molecule is completed, it is sent to its final destiny.Transcription:The first step before protein arrangement is to synthesize messenger RNA, mRNA. This is the transcription process and occurs in the nucleus. When the DNI molecule separates into two strands to form the transcription bubble, we can identify two separate segments: coding strand and template strand. The coding strand goes in direction 5' to 3', while the complementary strand -template strand- grows in direction 3' to 5'. This last segment is the one that is going to be complemented by the mRNA. It is the template strand. A template DNI strand is read in direction 3'→ 5' to build the mRNA molecule that grows in direction 5'→ 3'.During transcription bases forms pairs. RNA replaces Thymine with Uracyl, so pairs are as follows,DNA mRNA
Adenine pairs Uracyl, Thymine pairs Adenine, Guanine pair Cytosine, Cytosine pair Guanine.Translation:
Translation occurs in the cytoplasm. During translation, rRNA reads mRNA in 5' to 3' direction, and tRNA adds the correct amino acid to the growing chain. The first extreme to be translated carries the amino-terminal group, while the other extreme carries the carboxy-terminus group.ExampleWe will consider for this example the following DNA template strand.
DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
Transcription
template DNI strand ⇒ 5'-TAGAACGCCTCGAAATTTCATACT-3'
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
The new mRNA strand is
mRNA ⇒ 3´-AUCUUGCGGAGCUUUAAAGUAUGA- 5´
Once the mRNA synthesis is over, the molecule leaves the nucleus and proceeds with translation in the cytoplasm.
You can learn more about transcription at
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https://brainly.com/question/5001340
https://brainly.com/question/8953083
an individual with this karyotype would be described as
Answer:
it's option c
Answer:
a normal male with a translocation mutation.
What is density?
Q1 options:
the amount of salt in water
the amount per unit volume of a particular material
a measure of salinity
the weight of water
Q2 (0.25 points)
As the amount of salt in water increases, the___________ of the water increases.
Question 2 options:
humidity
temperature
size
density
Q 3 (0.25 points)
Deep, cold water is the __________. Warm, shallow water is the ___________.
Question 3 options:
densest; densest
densest; least dense
least dense; least dense
least dense; densest
Question 4 (0.25 points)
Which layer of the ocean is the least dense?
Q4 options:
they are all the same
closest to the ocean floor
closest to the surface
middle layer
Answer:
Q1: C. salinity Q2: density Q3: B. densest, least dense Q4: C. closest to the surface
Explanation:
Q1: The term "salinity" refers to the concentrations of salts in water or soils. Q2: when the amount of salt in the water increase which usually gathers mostly at the shallow top of the ocean which is where the warm shallow water gathers, when the warm water has enough salt in it, it sinks to a deeper location causing its density to heighten and that's also what makes it cold. Q3: When layers form in the ocean, the water containing the most dissolved salt tends to form the bottom layer. The water having the least amount of salt is usually on top, because it is the least dense. As more solids are dissolved in water, the water becomes more dense. Q4: Cold water has a higher density than warm water. Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface. I really need brainliest please do so.
Answer:
Here so you can get brainlest :)
Explanation:
what is a condensed structure that contains the DNA that are visible during mitosis?
Which of the following phrases best describes the function of meiosis?
Group of answer choices
produces genetically unique diploid cells
produces genetically identical haploid cells
produces genetically unique haploid cells
produces genetically identical diploid cells
Answer: C.) Produces genetically unique haploid cells
Explanation: Meiosis will produce genetically unique cells because they are meant to pass onto offspring, and they are haploid because there are half the number of chromosomes in them. The organism will receive 2 sets, one from each parent, so that is why each parent who's cells undergo meiosis have to produce haploid cells.
SOMEONE PLEASE HELP ME WITH THIS PLEASE PLEASE PLEASEE ILL GIVE BRAINLY!!! ONLY IF U GET IT RIGHT!!
im pretty sure its c, have a good day!
Answer:
5ikjrfn clk
Explanation:
I used my big brainly for this
Which best describes sponges?
A. plants
B. simple invertebrates
C. fungi
D. fish
Answer:
answer is B I guess..........
How, do humans use mineral and
Energy resources?
A. Environmental protection
B. To build machinery
C. Industrial purposes and crop
irrigation
D.
To discover new elements
How do ecosystems return to normal after a flood?
This really depends on the ecosystem, as each ecosystem may respond differently.
Explanation:
How an ecosystem responds is going to depend on the ecosystem, as each ecosystem may respond differently, and also on the extent and magnitude of the natural disaster. It takes ecosystems a long time to return to semi-normal conditions it can take up to 200 years for a forest to regrow after a huge fire. and that doesn't include the animals displaced/killed in the disaster.
An increased cardiac output will provide more oxygen and more glucose to the working muscles.
Explain how this helps the athlete during exercise.
Answer:Let's dance
Put on your red shoes and dance the blues
Let's dance
To the song they're playin' on the radio
Let's sway
While color lights up your face
Let's sway
Sway through the crowd to an empty space
If you say run
I'll run with you
And if you say hide
We'll hide
Because my love for you
Would break my heart in two
If you should fall into my arms
And tremble like a flower
Let's dance
Let's dance
For fear your grace should fall
Let's dance
For fear tonight is all
Let's sway
You could look into my eyes
Let's sway
Under the moonlight, this serious moonlight
And if you say run
I'll run with you
And if you say hide
We'll hide
Because my love for you
Would break my heart in two
If you should fall into my arms
And tremble like a flower
Let's dance
Put on your red shoes and dance the blues
Let's sway
Under the moonlight, this serious moonlight
Let's dance
Let's dance
Let's dance, dance, dance
Explanation:
Can someone PLEASE answer these questions QUICKLY
The half-life of carbon-14 is 5370 years. The carbon-14 levels in a fossil indicate that 6 half-lives have passed. How old is the fossil?
PLEASE ANSWER FAST!!!!!!!
75,200 years
35,000 years
32,220 years
50,000 years
Rain falls when the suspended water droplets become too. heavy, dense, hot, cold
Answer:
heavy
Explanation:
tiustltstsrllsuustrsylrsyrylylsslslylttllysslyslylysr
Answer:
precipitation
Explanation:
Wind is the horizontal movement of air, transporting energy transferred from the earth's surface as sensible and latent heat. Sensible heat is transferred by the processes of conduction and convection. Conduction transfers energy within a substance, and convection transfers energy through the vertical movement of the heated substance. Latent heat is the transfer of energy by transforming the substance itself. As you recall, water has the ability to exist as liquid, gas or solid. The transformation from liquid to gas is called evaporation; the reverse process, from gas to liquid, is called condensation; from liquid to solid is known as solidification (freezing); and from solid to liquid, fusion (melting). Water can also be transformed directly from solid to gas (sublimation), or the reverse, through a process called deposition. We will see these various processes in the formation of clouds.
Clouds are formed when air contains as much water vapor (gas) as it can hold. This is called the saturation point, and it can be reached in two ways. First, moisture accumulates until it reaches the maximum amount the volume of air can hold. The other method reduces the temperature of the moisture filled air, which in turn lowers the amount of moisture it can contain. Saturation, therefore, is reached through evaporation and condensation, respectively. When saturation occurs, moisture becomes visible water droplets in the form of fog and clouds.
The body cells of hamsters have 44 chromosomes. How many chromosomes would the sex cells of a hamster have? Explain.
Answer: 22
Explanation:
Answer:
hamster has 22 sex cells because they just do
Explanation:
like mofo
Which of the following is NOT consistent with the concept of natural
selection?
A. Individual organisms are able to change their genetic adaptations in
order to better survive in changing environments.
B. More offspring are produced than can survive in an environment
(overproduction of offspring).
C. There is genetic variation within populations.
D. Organisms with beneficial variations are more likely to survive and
reproduce, passing on their genes to subsequent generations.
Click to choose your answer helow:
Answer:
A. Individual organisms are able to change their genetic adaptations in
order to better survive in changing environments.
Explanation:
Natural selection can be defined as a biological process in which species of living organisms having certain traits that enable them to adapt to environmental factors such as predators, competition for food, climate change, sex mates, etc., tend to survive and reproduce, as well as passing on their genes to subsequent generations.
Simply stated, natural selection entails the survival of the fittest. Therefore, the species that are able to adapt to the environment will increase in number while the ones who can't adapt will die and go into extinction.
The statements which are consistent with the concept of natural selection includes;
I. More offspring are produced than can survive in an environment (overproduction of offspring). This ultimately implies that, the more offsprings that are reproduced by the parent organism, the more likely are they to survive.
II. There is genetic variation within populations. This simply means that tere is a better chance of having good or beneficial traits being passed from the parent organism to her offsprings.
III. Organisms with beneficial variations are more likely to survive and reproduce, as well as passing on their genes to subsequent generations.
PLS answer
How do vaccines generally work?
What is the difference between traditional vaccines and mRNA vaccines?
Answer:
Vaccines train our immune systems to create proteins that fight disease, known as ‘antibodies’, just as would happen when we are exposed to a disease but – crucially – vaccines work without making us sick
Explanation:
mRNA Vaccines Are New, But Not Unknown
This means the process can be standardized and scaled up, making vaccine development faster than traditional methods of making vaccines. mRNA vaccines have been studied before for flu, Zika, rabies, and cytomegalovirus (CMV).
Which part of meiosis mirrors mitosis?
Select all the correct statements concerning proteins
pls help i’m taking a test.
Answer:
A,E,and F i think
Explanation:
An organism has died next to a river.
Describe how that organism could become a fossil.
Answer:
Being buried in sediment
Explanation:
The river floods and catches the organism's corpse, the river carries it to a larger body of water, and the corpse falls to the bottom of the body of water, over time sediment is deposited over the corpse.
The chemical or molecule that the enzyme is changing or affecting is _____________
activation energy
a substrate
an active site
Answer:
A substrate
Explanation:
what are the functions of chlorophyll?
Answer:
It helps to capture the light rays that are helpful in the process of photosynthesis
How does the DNA sequence in a normal hemoglobin gene compare to a sickle cell hemoglobin gene?
ASAP
Answer:A person with normal hemoglobin has inherited one allele for normal hemoglobin from each parent and so has the genotype Hb A/Hb A. In contrast, a person who has sickle disease has inherited one sickle-cell allele from each parent and has the genotype Hb S/Hb S.
Explanation:
The DNA sequence in a normal hemoglobin gene is different from the hemoglobin gene of sickle cell due to a change in nucleotide base from A to T.
What is Sickle cell anemia?Sickle cell anemia is a group of disorders which cause the red blood cells (RBCs) to become misshapen and break down. It is an inherited group of disorders, in which the red blood cells contort into a sickle shaped cell. The cells die early due to this disorder, leaving a shortage of healthy red blood cells in the blood and can block the blood flow causing pain and crisis.
Symptoms of sickle cell anemia include infections, pain and fatigue.
Genetic studies have shown that the base sequence in the normal hemoglobin (HbA) and the sickle cell hemoglobin (HbS) differs at only a single nucleotide position including a change from an A to a T nucleotide base. This change in nucleotide to one codon results in a single amino acid change in the hemoglobin.
Learn more about Hemoglobin here:
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A geneticist is studying two traits in corn: kernel color and kernel appearance or ‘shine'. The R/r alleles determine kernel color (R – purple color; r – yellow color). The W/w alleles determine kernel ‘shine' (W – waxy; w – dull). The geneticist crosses two corn plants that are Rr Ww and Rr ww . What phenotypic ratio is expected from these two parents?
Answer:
Purple, waxy (R_W_) = 6
Purple, dull (R_ww) = 6
Yellow, waxy (rrW_) = 2
Yellow, dull (rrww) = 2
Phenotypic ratio = 3 (purple, waxy) :3 (purple dull) :1 (yellow waxy) :1 (yellow dull)
Explanation:
This question involves two genes coding for kernel color and kernel appearance or ‘shine in corn plants. The alleles for purple kernel (R) and kernel waxy (W) are dominant over the alleles of yellow color (r) and kernel dull (w).
According to this question, a geneticist cross two corn plants that have the genotype: RrWw and Rrww. The following gametes will be produced by each parent:
RrWw - RW, Rw, rW, and rw
Rrww - Rw, Rw, rw, and rw
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
Purple, waxy (R_W_) = 6
Purple, dull (R_ww) = 6
Yellow, waxy (rrW_) = 2
Yellow, dull (rrww) = 2
The phenotypic ratio expected from crossing these two parents is 3 (purple, waxy) :3 (purple dull) :1 (yellow waxy) :1 (yellow dull).
11. How can the rate of an infectious disease be drastically reduced?
a By taking medication daily
b. By preventing transmission between people
C. By wearing clean clothes daily
d. By performing dental hygiene three times daily
Answer:
b
Explanation:
trust trust trust trust
Name the 2 stages of photosynthesis
Answer:
Light dependent reaction and the Calvin cycle
Explanation:
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