1.what is the meaning of synapse
2.explain how an impulse is transmitted across a synapse
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Answer:
Hope this helps you. Sorry for the handwriting.
Related Questions
Which of the following describes a second class lever
1. The fulcrum is located between the effort force and the load.
2. The effort force is located between the fulcrum and the load force.
3. The load force is located between the effort force and the fulcrum.
Answers
Answer:
I think the answer might be number 2
In the second class lever, the load is between the effort force and the fulcrum. The correct option is 3.
What is a fulcrum?The term can refer to the juncture or assistance on which a lever rotates, as well as the focal point of a critical activity or situation.
The term "fulcrum point" in zoology refers to an anatomical structure that serves as point of support.
The load in second-class levers lies among both the effort and the fulcrum. A wheelbarrow is a prominent example, where the effort moves a great distances to lift a substantial load, with the axle and wheel acting as the fulcrum.
In a second-class lever, the effort is distributed over a large area in order to raise the load a short distance.
Thus, the correct option is 3.
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Edxcel alevel biology past papers: some of the blood plasma of individuals who have survived infection wtih Ebola can be collected. This can be used in the treatment of individuals currentlty infected with Ebola. Explain why the blood plasma from survivors can be used to treat new cases of Ebola infection.
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Answer:
This was the only treatment options adopted for the Ebola in 1995 in the Democratic Republic of Congo. The assumption was that immune response is generated by the virus in the WBC of the infected individuals. These response produce antibodies.
A total if 8 patients were transfused with these blood contained antibodies, but one of these died, the remaining 7 patients survived.
The antibodies were believed to have multiplied(produced b-cells) to neutralize the Ebola virus(antigens) and to ensure the survival of the patients
Explanation:
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how does matter move from the hydrosphere into the biosphere explain in your own words
Answers
Water mover form hydrosphere i.e river to biosphere i.e atmosphere by a process of evaporation.Thus, we can say that matter is move from hydrosphere to biosphere.
What is hydrosphere and biosphere?Hydrosphere:-
The hydrosphere is the collective mass of water which is found on under, or above the surface of earth. Although earth hydrosphere is 4 billions old. A planet's hydrosphere can be liquid, vapor or ice.
Biosphere:-
The region or area of surface where living organisms survive their life are called as biosphere. The biosphere is a narrow zone on the surface of the earth where soil, water, and air combine to survive life.
Evaporation:-
The process in which water or liquid converts into vapor is called as evaporation. In the case of water it starts vaporization at 100 degree C.
So, we can say that the conversion of matter from hydrosphere to biosphere is successfully achieved by evaporation.
Therefore, Water mover form hydrosphere i.e river to biosphere i.e atmosphere by a process of evaporation.Thus, we can say that matter is move from hydrosphere to biosphere.
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A diagram that shows the connections of many food chains is called a ...
Answers
I think it’s a ‘food web’ but honestly I’m not sure
I hope this helps anyways :)
HElp me to get brainless
Answers
Answer:
B
Explanation:
Experiment tools and methods were not as precise as they are now. Since tech has evolved so has the ways to look at atoms meaning that they will see new and different things.
This atomic model has changed over time. Scientists used the model to make predictions. Sometimes the results of their experiments were a surprise and they did not fit with the existing model. Scientists changed the model so that it could explain the new evidence. And Because more experiments gave more data, theories and models for atoms changed to be more accurate over time.
Answer: b
Which is a resource that the National Park Service manages?
memorials
wildlife refuges
ecosystems
endangered species
Answers
Answer:
wildlife
Explanation:
ur welcome
In an investigation designed to determine the effect of the amount of water on plant growth, two groups of equal-sized bean plants of the same species were grown under identical conditions, except for the amount of wafer they were given. One group was watered with 200 milliliters of water once a day, while the other group was watered with 400 milliliters of wafer once a day. After several days, the heights of the plants were measured. It was determined that the plants watered with 400 milliliters of water once a day showed more growth. The independent variable in this investigation is the
A. type of bean plants used in the experiment
B. amount of water given to the plants each day
C. type of soil the bean plants were growing in
D. group of bean plants watered with 200 mL of water
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Answer:
A
Explanation:
Type of bean plants used in the experiment
Why do scientists use scientific names to describe organisms?
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Need answer ASAP!!
Which describes a species?
A. organisms that live in the same area
B. organisms that breed and produce fertile offspring
C. organisms that look similar
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Answer:
B
Explanation:
organisms that breed and produce fertile offspring
Answer:
B. organisms that breed and produce fertile offspring
Explanation:
Verified correct with test results.
Why can humans not see ultraviolet (UV) light?
Answers
Answer:
Most humans cannot see ultraviolet light because it has a smaller wavelength than violet light, putting it outside of the visible spectrum.
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ITS IN THE PIC PLZZ ILL GIVE BRAINLIEST
Answers
Answer:
Crossing Over
Explanation: Crossing over never happens in mitosis but does in meiosis
Hope this helps!
Which of the processes offers the GREATEST evolutionary advantage of sexual versus asexual reproduction?
А
meiosis
B В
mitosis
С
budding
D
binary fission
Answers
Answer:a
Explanation:
The process that offers the GREATEST evolutionary advantage of sexual versus asexual reproduction is MEIOSIS.
Meiosis is a type of cell division that is used by organisms of sexual reproduction to produce haploid (n) gamete cells.Meiosis produces new genetic variation in offspring due to:
the random separation of alleles in gametes when chromosomes separate crossing-over or recombination which is the interchange of genetic material between non-sister chromatidsgametes randomly fuse to produce a diploid (2n) organismIn conclusion, the process that offers the GREATEST evolutionary advantage of sexual versus asexual reproduction is MEIOSIS because it is capable of introducing new alleles and increasing genetic variation in a population.
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PLEASE HELP ME!!!
Which of these DNA sequences will produce the following m-RNA: AGC-UAC-ACU?
Hint: Remember in mRNA Thymine is replaced by Uracil.
A TCG-ATG-TGA
B TCG-TAC-ACT
C TCG-ACG-TGA
D AGC-TAC-ACT
Answers
Answer
A, because If you just match the base pairs in the question to A they would match up
The DNA sequences will produce the following m-RNA: AGC-UAC-ACU is TCG-ATG-TGA. The correct option is A.
What is a DNA sequence?Finding the nucleic acid sequence, or the order of nucleotides in DNA, is the process of DNA sequencing. The four bases—adenine, guanine, cytosine, and thymine—are arranged in this way using any technique or technology.
Adaptor molecules that can recognize and bind to the codon, as well as the amino acid at a different place on their surface, are necessary for the translation of mRNA into protein.
These adaptors are made up of a collection of tiny RNA molecules called transfer RNAs (tRNAs), each of which is made up of roughly 80 nucleotides.
Therefore, the correct option is A. TCG-ATG-TGA is the sequence of m-RNA: AGC-UAC-ACU.
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A student wondered it butterflies would show any differences in their wing color it, as caterpillars, they were grown in the dark or grown in bright white light
Which statement would be a possible hypothesis for an experiment to test this idea?
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Answer:
probably bc most caterpillars are mostly green and then they turn in to like brown or other colors
Explanation:
What does tRNA use anticodons or codons
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Help me!!! Please!!!!!
7th grade science
Answers
Answer:
Eukaryotic means "true nucleus" in Greek.
Have a nucleus.
Have membrane bound organelles.
Typically much larger than prokaryotic cells.
Multicellular, meaning more than one cell.
Explanation:
Orange trees planted in a grove or orchard would most likely fall in which category of population distribution?
a.even
b.random
c.clumped
d. density
Answers
Answer:
A) Even
Explanation:
got it right on edge :)
Orange trees planted in a grove or orchard would most likely fall in the even category of population distribution. The correct option is a.
What is population distribution?Population distribution is how the population of something, plants, animals, or humans is distributed in specific areas. It specifies where people live or where they are not living.
There are three types of population distribution:
Uniform dispersion - In this distribution, the population is uniformly or evenly distributed in the areas. Even distribution comes under this distribution.Random dispersion - there are no predictable patterns in this dispersion. They are randomly present anywhere.Clumped dispersion - This distribution shows the bunch or group of population is areas then there is no population, and then there is a a bunch of population in another place.Thus, the correct option is a. even.
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What is crossing over in meiosis?
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Part 4 - Natural Selection and Adaptations
3 of 113 of 11 Items
Item 3
A scientist studied a snail population that had a variation of shell colors. The number of each differently colored snail shell was recorded. The graph shows the data the scientist collected.
Over time, the rocks on which the snails lived became covered with dark-colored seaweed.
Which graph best represents the range of colors in the snail population that resulted from natural selection after the dark-colored seaweed covered the rocks?
Answers
There are different types of natural selection. When one of the extremes phenotypes is being favored, directional selection is going on. Meanwhile, balancing selection increases the proportion of intermediate phenotype.
-----------------------------
Since I do not have the graphs, I will set different potential scenarios
Let us assume the snails shell has three phenotypes: light brown, brown, and dark brown.Light brown and dark brown are the extreme phenotypesLet us also assume that seaweed is brown-colored.Scenario 1: More light brown individuals than brown and dark brown
Probably after the dark-colored seaweed covered the rocks, snails needed to camouflage to avoid predation. So they must have suffered a change in color from light brown to dark brown.
Since this new trait is beneficial, natural selection favored it.
So animals change from being light brown to dark brown.
The type of natural selection acting here is directional selection.
A population that is under the effects of directional selection, experiences an increase in the proportion of individuals expressing an extreme phenotype, different from the original one.
In these cases, interactions between living organisms and the environment modify in the same direction.
So, the most abundant individuals turned from being light brown to being dark brown.
After dark-colored seaweed covered the rocks, the number of dark brown individuals increased, and the light brown individuals decreased.
**********************
Scenario 2: More brown individuals than light brown and dark brown
This is the same situation as before. In this case, there were more brown individuals than snails expressing extreme phenotypes.
**********************
Scenario 3:
Now let us assume three different phenotypes: Yellow, brown and greyYellow and Grey are the extreme phenotypesSeaweed is brown-colored.Let us suppose that the original number of individuals was higher for one of the extreme traits, either yellow or grey.
After the seaweed-covered rocks, snails needed to camouflage to avoid predation, so they changed their color from yellow or grey to brown.
In this scenario, the intermediate phenotype is being favored by natural selection over the extreme phenotypes.
Balancing selection -or Stabilizing selection-, decreases the number of individuals expressing the extreme phenotype and favors individuals that exhibit medium-range characteristics. These are the ones that get to survive. Selective pressure is against h0m0zyg0tes.
In this case, the number of individuals expressing yellow or grey shells decreases, while individuals with brown color increase.
In the attached files you will find graphs for the three scenarios.
--------------------------
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when does seeds of plants for plants aerobic respiration please give answer in one sentence it is urgent i will mark brainliest
Answers
Answer: Seeds of plants only perform anaerobic respiration in extreme conditions. usually it's done when there is a lack of oxygen or no oxygen available at all.
Type fast if you don’t mind ty!!
Answers
Answer:
c
Explanation:
In a lab investigation, one group of students (group A) measures the speed of a .1 kg toy car to be 2.5 m/s at the bottom of a ramp. Another group of students (group B) measures the speed of a car to be 3 m/s at the bottom of a ramp. The car's starting position at the top of the ramp is 1 m high. What is the potential energy of the car at the beginning of the experiment before its speed is measured?
Answers
Answer:
i think you have to do 1k *2.5 m/s= 2.5
and
3m/s *1m = 3
and then you do 3-2.5
Name the four macromolecules, their function, and their monomers.
Answers
Lipids are structural components of cell membrane the monomer is glycerol and fatty acids.
Proteins helps repair body tissue and regulates proper ph and fluid balance the monomer is amino acids
Nucleic acids help with the storage and expression of genetic information the monomer is nucleotides.
Hope this helps
Help asap!
The broadest group an organism can be classified into is its:
A. kingdom
B. domain
C. order
Answers
Answer:
B. Domain
Explanation:
In order from broadest to most specific:
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Answer
Explanation:
The broadest category in the Linnaean system is the kingdom. Figure above shows the Animal Kingdom because Homo sapiens belongs to that kingdom. Other kingdoms include the Plant Kingdom, Fungus Kingdom, and Protist Kingdom. Kingdoms are divided, in turn, into phyla (phylum, singular)
What type of transport is secondhand smoke
Answers
1. Besides bacteria, what are some other types of microbes that live in the rumen of a cow's
stomach?
Answers
Answer:
Spirochete, fungi, and protozoa
(not sure if this helped)
Answer:
Many diverse microbes live together in close association in the rumen.
Cellulose degrader.
Spirochete in Cow Rumen.
Methane Producer. This bacterium produces methane, a flammable gas, in a the rumen.
Entodinium dividing. Protists thrive inside the rumen.
Hairy Rumen Protist with bacteria.
Ophryoscolex.
Fungal zoospores on hay.
Explanation:
Which option describes a strong argument against the development of nuclear power? A nuclear power company is proposing a nuclear power plant near a quiet, small waterside town. The company is promoting this development by stating that nuclear power does not produce pollutants.
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Answer:
The correct answer is B) The company is promoting this development by stating that nuclear power does not produce pollutants.
Explanation:
Whilst the process of power generation itself does not produce environmental pollutants like fossil fuels which features the emission of carbon monoxide when they are partially combusted, it does leave behind radioactive wastes, in the same way, combusted charcoal or wood leaves ash behind.
The challenge with radioactive wastes is that they are inimical to human health and can remain so for hundreds of centuries.
Cheers
What are cat and dog paws adapted for?
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Answer:
Explanation:
The cat and dog paws are adapted for walking, running, climbing and digging. Both the animals can use their front paws and back paws for different needs or just as the situation ahead of the demands.
PLEASE HELP QUICKLY 15 POINTS
Answers
Answer:
uhh i cant see the imageeeeeeee
Explanation:
what is the difference in potential between two charges called
Answers
Answer:
volt
Explanation:
The potential difference is expressed in volt (V). The potential difference between two points is said to be 1 volt if the work is done in moving 1-coulomb charge from one point to other is 1 joule. 1 volt= 1 joule/ 1 coulomb Unit for measuring the potential difference is volt and instrument used for measuring potential difference is a voltmeter.
Answer:
Its potential is taken as zero potential. Thus the positively charged conductor has more positive potential than the earth. A negatively charged conductor has negative potential less than that of the earth. The electric potential difference between two points in an electric circuit is the work done in moving a unit positive charge from one point to the other.
