Temporal summation.
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Muscle twitching can be explained by the temporal summation action of synapse. Thus, the correct option is B.
What is Muscle twitching?Muscle twitching is also called as muscle fasciculation. Muscle twitching involves a small muscle contraction in the body muscles. Muscle twitches are caused by the muscles tightening up or contracting involuntarily. In other words, it occurs when we are not actually controlling their actions. Muscle twitches can happen for a lot of reasons, such as stress, too much caffeine, a poor diet, exercise, or as a side effect of medicines.
Temporal summation is a physiological effect when the second muscle twitch becomes much higher than the first twitch, forming a tension in the muscle fiber. This happens because, after the first twitch of the muscle, the second stimulation is applied before the muscle even relaxes however both the stimuli are of equal strength.
Therefore, the correct option is B.
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Which of the following statements is true about photosynthesis and cellular respiration?
Both photosynthesis and cellular respiration occur in all living things.
Only cellular respiration occurs in all living things.
Photosynthesis occurs in the nucleus of the cell.
Only photosynthesis occurs in all living things.
Answer:
Both
Explanation:
Explain how thermal energy is circulated in Earth's atmosphere. How does this energy impact the air molecules in the upper atmosphere? Use complete sentences in your response
What would the mRNA strand look like if it was coded using the following DNA stand: AACGTT
Answer:
AACGTT — DNA
UUGCAA — mRNA
Why do uneven-aged strands of trees offer more biodiversity?
What novel characteristics are shared by gymnosperms and angiosperms but not by mosses and ferns?
Explanation:
Mosses go through sporophyte and gametophyte stages in their life cycle. ... However, mosses are nonvascular while ferns are vascular. Gymnosperms and angiosperms are both vascular, seed-bearing plants. However, gymnosperms release their seeds in cones (like pinecones) while angiosperms release their seeds through flowers.
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Answer:
i think for number 8 it is because it contains oxygen
Explanation:
oxygen makes things float
At 23°F, 1 inch of rain equals 10 inches of snow.
Convert 2 inches of rainfall to snowfall.
Make up and solve division problems that involve
decimals
Answer:
The correct answer is - 20 inches
Explanation:
1 inch of rain equals 10 inches of snow, then
1 = 10 inch snow
2 = 10*2
2= 20 inches of snow.
The correct answer is - 20 inches
Two genes (R or r) and (D or d), each with a dominant and recessive allele, are
inherited independently of each other. Which of the following combinations
could result in gametes of a plant with an Rr Dd genotype?
A. RD and rd
B. DR, Dr, Rd, dr
C. DD, Dd, dd, RR, Rr, rr
D. Rr and Dd
Change the following sequence (GGAUUC) to show:
a. Substitution
b. Insertion
c. Deletion
DONT CHOOSE A< B< C
I need each of those to have an answer. So if you dont know how to do it , dont say anyhting. I will give brainlist
Answer:
Given the sequence of bases of the RNA GGAUUC, the possible mutations would be:
a. Substitution: GGAUUC → GGAAUC
b. Insertion: GGAUUC → GGACCUUC
c. Deletion: GGAUUC → GG_UC
Explanation:
The fragment observed is recognized as RNA, due to the presence of uracil (U). The mutations observed in this fragment are derived from a mutated DNA molecule, which was transcribed into mRNA
Substitution is a molecular mutation that occurs when one nitrogenous base is changed to another in the DNA sequence. GGAUUC → GGAAUC Mutated DNA: CCTTAGInsertion occurs when entire bases or segments are added to the original genetic material, resulting in a longer molecule. GGAUUC → GGACCUUC Mutated DNA: CCTGGAAGDeletion is a type of mutation where genetic material is lost, which can be nitrogenous bases or segments of the molecule. GGAUUC → GG_UC Mutated DNA: CC_AGEach of these mutations can have an effect on protein synthesis, affecting the structure or function of the final protein.
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Which of the following demonstrates the correct order of parts in an annelid’s digestive system?
A . mouth, pharynx, esophagus, gizzard, crop, intestine, anus
B . mouth, pharynx, esophagus, crop, gizzard, intestine, anus
C . mouth, pharynx, crop, esophagus, gizzard, intestine, anus
D . mouth, esophagus, pharynx, crop, gizzard, intestine, anus
What are hydrothermal vents and how are they significant?
Ecological ____
is the change in population and
diversity of different species present in an ecosystem over
time.
Answer:
Ecological succession.
Explanation:
Which best explains why a decrease in the types of insects in an ecosystem reduces the sustainability of the
ecosystem?
O Organisms that depend on insects may not survive, eventually harming all the organisms that are interconnected.
O The biodiversity of the ecosystem cannot be protected by laws unless there are a certain number of insect
species.
O There will likely be fewer insects that harm plants, causing an increase in plant diversity.
O Having fewer insects allows other organisms to use the resources that the insects were using.
Answer:
I'd say A!
Explanation:
What are the differences you can see when you compare the nucleons of a dividing cell with that of a non dividing cell
Answer:
Chromosomes will be seen in the nucleus of dividing cells (during mitotic and meiotic cell divisions) because they are visible when a cell is dividing as oppose to non dividing cells. Also, all processes of cell division from prophase, metaphase, anaphase to telophase will be seen :)
Which of the following is not true about organic farming?
A) It is more like a natural ecosystem than a monoculture.
B) It occupies a small fraction of U.S. farmland.
C) It minimizes negative environmental impacts.
D) It contributes a large amount to agricultural income.
E) It produces foods that do not contain artificial compounds.
Answer:
D
all other answers are true
what the best examples of fungi reproduction?
Answer:
Fungi reproduce asexually by fragmentation, budding, or producing spores. Fragments of hyphae can grow new colonies. Mycelial fragmentation occurs when a fungal mycelium separates into pieces with each component growing into a separate mycelium. Somatic cells in yeast form buds.
Consider an organism that has a dominant phenotype, is it possible to determine its genotype? explain your answer
Answer:
Yes, it is possible via testcrossing
Explanation:
The law of dominance has made it possible that a phenotype may be expressed without knowing the actual genotype (allele combination). This occurs when an allele is dominant over another allele (recessive), hence, the dominant phenotype can either be in a heterozygous or purebred state.
However, a way to discover the genotype of an organism that is portraying dominant phenotype is TEST CROSS. Test cross is the crossing of the unknown genotype with a recessive condition (will contain same recessive alleles).
After crossing, the offsprings will be used to determine whether the parent with unknown genotype is heterozygous or not.
- If the offsprings all exhibit the dominant phenotype, the unknown genotype contains the same dominant alleles e.g DD.
- If 50% of the offsprings exhibit a recessive phenotype, the unknown genotype is heterozygous e.g Dd.
Why wild animals have the same rights as humans
The reason that people have rights is to prevent unjust suffering. Similarly, the reason that animal rights activists want animals to have rights is to prevent them from suffering unjustly.
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The mosquitos have different traits because they have different proteins for body size feature in their cells. Differences in the structure of protein molecules affect how they interact with other protein molecules. A gene version provides instructions for making a specific protein, so mosquitos with different combinations of gene versions will have different proteins in their cells that result in small, medium, or large body sizes. Each parent randomly passes on one of its two copies of a gene for a feature, which is why each mosquito offspring can have a different combination of gene versions even though they have the same parents.
Answer:
The mosquitos have distinctive characteristics since they have diverse proteins for body measure highlight in their cells. Contrasts within the structure of protein atoms influence how they associated with other protein atoms. A quality form gives enlightening for making a particular protein, so mosquitos with distinctive combinations of quality adaptations will have distinctive proteins in their cells that result in little, medium, or huge body sizes. Each parent haphazardly passes on one of its two duplicates of quality for a include, which is why each mosquito sibling can have a diverse combination of quality forms indeed in spite of the fact that they have the same guardians.
Explanation:
Answer:
Explanation:
monkie
What cells does for your body?
Answer:
The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves.
Explanation:
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Type the correct answer in the box. Spell all words correctly. Which skeletal remains has joanna found? Joanna excavated skeletal remains from a crime scene. She observed that the bones of the upper limb were fused. She could not locate the clavide
The skeletal remains belong to an...
Answer:
Which skeleton remains Joanna found? Joanna excavated skeleton remains from a crime scene. She observed that the bones of the upper limbs were fused. She couldn't locate the clavate.
The skeleton remains belong to an ancient old man like my grandad.
Explanation:
What is reduced during glycolysis?
Answer:
There is one redox reaction during glycolysis. The oxidation of glucose begins during glycolysis. NAD+ accepts the electrons during the oxidation, and as a result it gets reduced. A total of 2 NADH are produced.
Explanation:
Answer:
During glycolysis, NAD is reduced
Select the best answer for the question
4. All the following impact water clarity except for
O A. light penetration
B. phytoplankton
C. suspended sediments
D. nutrients
Answer:
A. light penetration
Explanation:
Water clarity refers to how clear a water is, and it is a measure of how far/deep light can penetrate into such a water body. A water that is not clear is said to be TURBID. Several factors affect the clarity of a water body and they include;
- Phytoplankton, which refers to floating algae on the water body. An accumulated growth of phytoplankton can affect the penetration of light into the water, hence, making the water unclear.
- Suspended sediments can also block the penetration of light into the water, reducing water clarity.
- Nutrients in form of fertilizer or waste materials can also make water unclear.
Therefore, LIGHT PENETRATION DOES NOT IMPACT WATER CLARITY, rather it is dependent on water clarity.
What type of natural feature is most common in Japan?
deserts
grasslands
rainforests
volcanoes
When a neurotransmitter reaches an excitatory synapse
1 point
Potassium ions moves into the postsynaptic neuron causing hyperpolarization of the
postsynaptic neuron
Potassium ions moves into the postsynaptic neuron causing depolarization of the
postsynaptic neuron on 2
Sodium ions move into the postsynaptic neuron causing hyperpolarization of the
postsynaptic neuron
Sodium ions move into the postsynaptic neuron causing depolarization of the
postsynaptic neuron
rossa synapse
point
Answer:
Sodium ions move into the postsynaptic neuron causing depolarization of the
postsynaptic neuron
Explanation:
That's the mechanism of action potential generation. Neurotransmitter receptors are connected to sodium channels. When those sodium channels open the cell becomes depolarized(the charges reverse), that means the inside of the cell becomes more positive while the outside becomes negative
EXTRA CREDIT:
6. The human body responds to stressors by activating the nervous
system and specific hormones. The hormones
and
speed up heart rate, breathing rate, blood pressure, and metabolism.
Answer:
adrenaline
Explanation:
(JUST GIVE ME THE 2 REASONS GOOD AND BAD NO NEED FOR A PARAGRAPH ILL DO IT) Since we can use DNA fingerprinting to catch criminas, why not have every American give a DNA sample so everyone is on file to make it easier to catch criminals . write 1 paragraph supporting this and 1 paragraph explaining why it would be a bad idea .
Answer:
(Bad idea)
Many people are against the idea of extending the DNA database because of the potential threat it has to our privacy. While a DNA profile provides very little information about someone, their DNA sample contains information that can reveal their ethnicity or how susceptible they are to disease. The risk of data abuse is therefore potentially high.
(Good idea)
A DNA database of everyone may make it easier for police to identify missing people and unidentified remains.
I found a good article that is helpful for your paragraph. It supports both sides. It wont let me link so just type in :
"Is it ethical to have a national DNA database?" and it should be the first article that pops up
Answer:
why we should
Every American should give their DNA sample so then its easier, takes less time and so police can move on to other more important cases. Taking samples of DNA from all Americans would dramatically improve law enforcement's efficiency. Thousands of people have been convicted because suspects can be searched out across space and time based on DNA evidence. Hundreds of innocent people have also been freed, often after years behind bars, sometimes just short of the death penalty.
Why we shouldnt
Taking every single american dna will take a long time and will take alot of money and resources. And sometimes your genetic information could be sold to the highest bidder. And sometimes The results are often inaccurate.
i couldnt find more reasons why we shouldnt so you should go over why we should section more
What type of bond is used to hold together base pairs ?
Answer:
Hydrogen Bonds
Explanation:
the kind of their shape allows them to bond together
Choose all the answers that apply. Charlle has a normal karyotype. He has one x chromosome one y chromosome 23 chromosome pairs 46 chromosomes two x chromosomes two Y chromosomes
Answer: Charlie is XY, 46chromosome, 23 pairs
Explanation: Charlie has a normal male karyotype 46XY
48XXYY is an abnormal syndrome associated with tall stature but intellectual disability, developmental delays and other problems
Which statement describes the wave interactions in sound navigation and ranging (SONAR)?
O A. Sound is transmitted through the water and diffracted by hard surfaces.
o
B. Sound is transmitted through the water and reflected by hard surfaces.
о
C. Sound is diffracted through the water and transmitted by hard surfaces.
о
D. Sound is diffracted through the water and reflected by hard surfaces.
Answer:
B
Explanation:
In sound navigation and ranging (SONAR) the sound wave is transmitted through water and it will reflect by hard surfaces, hence option b is correct.
What is sound navigation and ranging (SONAR)?Sonar is used to create nautical charts, find underwater navigation hazards, search for and map things on the seafloor such as shipwrecks, and map the seafloor itself, waves are transmitted into the water and reflected by hard surfaces.
The transmission and receiving of sound waves are involved in active sonar. For example, when a submarine is used to map the topography of the ocean floor.
it emits sound pulses, known as pings, towards the bottom of the ocean in its area Sound is transmitted through the water and hard surface reflection.
Therefore wave interaction in sonar is sound is transmitted in water and reflected by hard surface, hence option b is correct.
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