Answer:
Myelin sheath
Explanation:
Increasing the rate of an impulse is the function of the myelin sheath. Thus, the correct option is A.
What is Impulse?The Impulse may be characterized as an electrical signal that can be transmitted along a nerve fiber in response to an external or internal stimulus.
The Myelin sheath increases the rate of nerve impulses. This is because it insulates the part of axons and reduces the chances of any disturbance in between due to the assemblage of voltage-gated sodium channels.
Therefore, increasing the rate of an impulse is the function of the myelin sheath. Thus, the correct option is A.
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Describe two examples of non-living things that have one or more of these characteristics of life.
Living organisms are distinguished from non-living things as they have the property of life.
Living organisms have important features that differs them from non-living things. For example., growth, reproduction, movement, sensitivity and death are few among many.
Growth is the unique property where a living organisms grows in size and volume.
Reproduction is another important characteristic where a living organism reproduces one of its own kind.
Living organisms move from one place to another which is not observed in non-living things.
Living organisms are sensitive to stimulus from the outer environment and respond accordingly. The stimulus can be touch, smell, temperature etc.
Living organisms have the characteristics of aging and senescence. They ultimately die.
Therefore, living organisms are different non-living things in many distinct ways.
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I think it might be organ system but I’m not sure
What type of organic compound is lactose
Which pair is at the same level of structural organization?
Each chromosome contains thousands of genes. What is a gene?
Select one:
O
A sequence of DNA that provides the structure for holding the nucleus together
A sequence of DNA that regulates the production of ATP in the cell
A sequence of DNA that codes for a specific protein
A sequence of DNA that regulates the replication of the nucleus
In the cell cycle typical cancer cells, mutations have most likely caused
A.uncontrolled growth
B.a halt in cell division
C.a failure in mitosis
D.slower growth
Answer:
This process is akin to searching for the proverbial needle in a haystack, because many of the mutations present in these cells have little to nothing
Explanation:
During mitosis, normal cells undergo checkpoints that monitor the fidelity of the processes that occur during the cell cycle. Uncontrolled cell growth refers to the breakdown of these regulatory checkpoint mechanisms.
In the cell cycle of typical cancer cells, mutations most like cause UNCONTROLLED GROWTH (Option A).Apoptosis refers to the programmed cell death that prevents the uncontrolled growth of cancer cells.In cancer cells, genes that control apoptosis during the cell cycle suffer mutations, thereby leading to uncontrolled cell growth.In conclusion, in the cell cycle of typical cancer cells, mutations most like cause UNCONTROLLED GROWTH (Option A).
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Q.4. I
are the basic unit of structure and function of all living
things.
a) Cells
c) Organs
b) Tissues
d) Organ systems
Q.5. The specific area where an organism lives is called its
a) niche
b) biomes
c) habitat
d) biosphere
Q.6. What is the highest level of organization of ecological systems?
a) Population
b) Biome
c) Community
d) Biosphere
Q.7.
a) niche
c) habitat
refers to the role of an organism in an ecosystem.
b) biomes
d) biosphere
Q.8.
is a large group of ecosystems characterized by similar
Answer:
4. Cell
5. Habitat
6. Biosphere
8.Biome
Euglena falls under what kingdom ?
Which phrase describes foliated rocks?
DO NOT CHECK ALL THAT APPLY
tend to break in half
grains arranged randomly
tend to split apart along bands
grains arranged in increasing size
Answer:
tend to split apart along bands
Explanation:
Foliated rocks are metamorphic rocks that are formed due to high pressure and heat leads to the layered or banded appearance of the rocks.
Due to the layered or banded appearance of the rocks, foliated rocks tend to split apart along bands that are aligned parallel to the minerals in the rocks. Example of foliated rocks: Slate, that split into thin sheets along bands .
Hence, the correct answer is "tend to split apart along bands ".
Answer:
tend to split apart along bands
Explanation:
Foliated rocks are metamorphic rocks that are formed due to high pressure and heat leads to the layered or banded appearance of the rocks.
Due to the layered or banded appearance of the rocks, foliated rocks tend to split apart along bands that are aligned parallel to the minerals in the rocks. Example of foliated rocks: Slate, that split into thin sheets along bands .
Hence, the correct answer is "tend to split apart along bands ".
hope it helps
Question 1 (5 points)
lonic bonds form when electrons are shared equally between two atoms
O True
O False
Answer:
false
Explanation:
it is formed when electrons are transferred from valence shell of one atom to valence shell of another atom
What form of phosphorus does fertilizer usually contain?
The replication cycle of T7 virus has several things that none of the other virus replication cycles include. What is one of these things? I cant find anything on google shhssgxhahshsb or im just lazy
Answer:
Lysogenic replication cycle is one unique process in T7 virus replication.
Explanation:
The T7 virus is a virus that attacks bacteria ( bacteriophage). Unlike other viruses (plants and animals viruses), it replicates within the host cell by means of two cycles: the lytic replication cycle and the lysogenic replication cycle.
Virulent phages replicate through the lytic replication cell and this lead to the death of the cell through cell lysis.
The lysogenic replication cycle involves bacteriophages known as temperate bacteriophages. Temperate bacteriophages can become part of a host chromosome forming a prophage. The prophage replicates with the formation of daughter cells with incorporated viral genetic materials until when induced to enter into the lytic stage thereby producing new viruses which then exit the host cell by cell lysis.
This process of incorporation into the host cell genome is known as lysogenic replication and is unique to the bacteriophages.
Viruses are neither living nor dead organisms. The viruses require a host to replicate. The virus follows the lysogenic or lytic cycle to replicate. The T7 virus follows the lysogenic replication pathway.
The T7 virus follows the lysogenic pathway, in which the nucleic acid of the bacteriophage is incorporated into the host genome. The T7 virus intervenes on the bacteriophage genome.
In the lysogenic cycle, bacteriophages can become part of the host genome. This genome is then known as prophage. Prophage replicates and forms the daughter cells with the altered genetic material of the host.
The new cells produced are released by the lytic cycle, in which the cell produces new cells by lysis.
Thus, the incorporation of the host cell genome in the bacteriophage via the lysogenic cycle is a unique feature of a virus, T7.
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What’s wrong with it
Answer: It looks pretty good to me.
Explanation:
2. How did the mass contamination affect wildlife in the area?
Answer:
Hope this can help
Explanation:
The number of wild animals living on Earth is on track to decline by two-thirds by 2020, according to WWF's Living Planet report, which indicates that the partial extinction of species is destroying the biological sustenance on which the planet depends. humanity. This report, the most comprehensive to date, indicates that animal populations plummeted by 58% between 1970 and 2012 and everything indicates that this loss may reach 67% in 2020.
(this is the translation of the answer above)
The number of wild animals living on Earth is on track to decline by two-thirds by 2020, according to WWF's Living Planet report, which indicates that the partial extinction of species is destroying the biological sustenance on which the planet depends.
What does this report indicates?This report, the most comprehensive to date, indicates that animal populations plummeted by 58% between 1970 and 2012 and everything indicates that this loss may reach 67% in 2020.
Many villages also grow into urban/semi urban areas. This is a sign of economic growth but with the cost of environmental damage. This damages 3 things - air, water, and land. Due to urbanization, many roads are constructed. It passes through the natural habitats of other wild animals. These roadways split their habitat, and cause a reduction in their number.
The urban sprawl causes set up many factories, the use of vehicles which does air pollution. People are more prone to use vehicles which are responsible for air pollution.
Therefore, The number of wild animals living on Earth is on track to decline by two-thirds by 2020, according to WWF's Living Planet report, which indicates that the partial extinction of species is destroying the biological sustenance on which the planet depends.
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4 – Microwave Miracle Patrick believes that fish that eat food exposed to microwaves will become smarter and would be able to swim through a maze faster. He decides to perform an experiment by placing fish food in a microwave for 20 seconds. He has the fish swim through a maze and records the time it takes for each one to make it to the end. He feeds the special food to 10 fish and gives regular food to 10 others. After 1 week, he has the fish swim through the maze again and records the times for each. What was Patrick’s hypothesis? Which fish are in the control group? What is the independent variable? What is the dependent variable? Look at the results in the charts. What should Patrick’s conclusion be?
Answer and Explanation:
What was Patrick’s hypothesis? Fishes that are fed with food exposed to the microwave will become smarter and will swim faster. Which fish are in the control group? The ones that feed on regular food What is the independent variable? Food exposed to the microwave What is the dependent variable? The time fishes spend in swimming through the mazeWhat should Patrick’s conclusion be? You will find the results considered in the attached file.In both groups, Patrick recorded a decrease in the time spent swimming through the maze. In both groups, there were two cases in which the animal increase the swimming time. These cases could be considered as outliers. Although in general, the treated group made it in a shorter time after the treatment, when comparing values before and after Patrick can not find any real difference among groups. His results do not show any difference, hence the speed and the intelligence of the animals is not influenced by the change in food, or if it is, more experimental time is required to record significant differences.
Describe two practical uses for an artificial chemical which behaves like chlorophyll.
Chemicals like Titanium dioxide and photovoltaic cells are artificial chemicals that behave like chlorophyll.
What do you mean by Artificial chemicals?Artificial chemicals may be defined as chemicals that are synthesized by the activity of humans and their processes.
The nanoparticles of titanium dioxide have the ability to increase the light-capturing potential of a surface, while a photovoltaic cell enables sunlight to be processed into usable electricity by exciting outer shell electrons on some metals. These substances also behave naturally and initiate the reactions in the reaction center present in the chloroplast.
Therefore, Chemicals like Titanium dioxide and photovoltaic cells are artificial chemicals that behave like chlorophyll functionally.
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I need help with this so hard emt class
Answer:
I can give u a advice
Ctrl + U
Click this and go to da bottom of page u can see da answers there
If u have any questions ask me
20. What would happen to a paramecium that is placed in a jar of syrup?
Answer:
It will shrink.
Explanation:
When a solution contains more solute than the surrounding environment where ,it is located,it is said to be hyper tonic.Such a solution is of higher concentration,and therefore contains little water.
Syrup is an example of an hype tonic solution.Corn syrup as an example contains more solute in it,
Paramecium is unicellular organisms which is aquatic in habitat,therefore compare to the syrup of high solute it is hypo tonic.
Thus when placed in syrup,Paramecium loses water by osmosis,since water from the Paramecium at lower concentration would move out through the paramecium membrane ,as semipermeable membrane,into the syrup,of higher concentration
The paramecium will eventually shrink,and die,due to dehydration.
The muscular system and the skeletal system are a few of the body systems that work together to form a more complex organization known as a cell a tissue an organ system an organism
Which of the following does NOT describe a protein function? A. Enzyme B. Short-term energy C. Antibody D. Endorphin
Answer:
B. Short-term energy
Explanation:
A, C, and D are all protein functions.
B is characteristic of carbohydrates.
Proteins are the macromolecules that act as enzymes, antibodies, and endorphins. It does not act as short-term energy. Thus, option B has been correct.
What are proteins?Proteins are polymers that are large molecules and are essential for several bodily activities, including immune reactions, hormone synthesis, growth, development, energy, and enzyme activities.
Enzymes are made of proteins that speed the biochemical reactions, antibodies are made of proteins that are immunoglobulins and act as a defense for the body. Endorphins are the hormones that are synthesized in stress and painful conditions.
Proteins just do not provide short-term energy but provide energy that can suffice for a longer period of time so that it can perform the various functions and activities in the cell.
Therefore, option B. proteins are not short-term energy.
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WILL MARK YOU BRAINLIEST!
Answer:
Below .
I hope the information give below is helpful .
Explanation:
In question 1 ;
The independent variable is the fertilizer
The dependent variable should be the rate of growth of the plants
The constant doesn't change so other factors that affect plant growth and health, such as soil quality and watering, would need to remain constant.
The controlled variables might be things such as the the quality of soil and the amount of water given to the plants. If these factors were not constant, and certain plants received more water or better soil than others
The experiment in question 1 is a controlled experiment
The part of the garden that didn't receive fertilizer is the control group
According to the question; She didn't hypothesize .
In question 2 '
The independent variable is the floor wax
The dependent variable was protecting the floor tiles against scratches.
It is a controlled experiment but there's no much information to determine if there is any variability and repetition )
The sections that received no wax is the control group
There is no hypothization (if that's a word :) ).The shopping mall didn't hypothesize (maybe that the tough steel would be better )
I'm not sure of any constant needed when applying floor wax.
Why are distant galaxies moving away from our galaxy more quickly than nearby galaxies are?
Which rely on other organisms for their energy and food supply? A. primary producers B. biomass C. autotrophs D. consumers
Answer: D, consumers
Explanation:
They eat other organisms for their energy.
gets rid of cell waste by breaking down large molecules into smaller ones for the cell to excrete. The helps these waste molecules exit the cell.
Answer:
Lysosomes I believe are the parts of a cell that gets rid of waste.
In humans, excess blood glucose is stored in the liver and in muscle tissue in the form of glycogen Glycogen is a long chain of
glucose molecules bonded together. Because of this, glycogen is called a
A) lipid
B) monosaccharide
C) polysaccharide
D) protein
Which statement is true about the forces involved in an ornithopter and a pterosaur taking off?
a. Gravity acts on both the ornithopter and the prerosaur,
b.Drag acts only on the ornithopter and not on the pterosaur.
c.Thrust resists the motion of the prerosaur and the ornithopter.
d. Lift is the single major factor in the forward movement of the ornithopter.
plzzzzz help I need a better grade
Answer:
I think its a if not b
Explanation:
Based on what you read, what is the importance of the Endosymbiotic Theory?
The endosymbiotic theory is important because it is currently the leading theory on the origin of eukaryotic and prokaryotic cells and why they are different.
13. The DNA found in prokaryotes and eukaryotes is an example of which
biomolecule? *
O Lipid
O Nucleic Acid
O Nitrogen
O Carbohydrate
Answer:
DNA is an example of the biomolecule nitrogen.
Which ones go in the circles ?
Answer:
Nucleic Acids- DNA- double chain- deoxyribose- ACGT- nucleus- mRNA
RNA- single chain- ribose- ACGU- cytoplasm- mRNA, tRNA, rRNA
Explanation:
Prior to 1850, the melanic form of the peppered moth in Europe was:______.