Answer:
The notion of maximum parsimony does not consider the entire evolutionary history, being able to suppress important evolutionary points that would cause errors in the evolutionary relationship of a species.
Explanation:
Maximum parsimony is a criterion for optimizing phylogenetic trees. This is because through this criterion an analysis is made of all possible phylogenetic trees of a species, observing which one is smaller and offers simpler and summary information. On the one hand, the study of the smallest phylogenetic tree can be faster and more understandable, since its information is basic and direct. However, maximum parsimony can lead to errors in the establishment of an evolutionary relationship of a species, because it suppresses the entire history of evolution of that species, being able to suppress really important points in one of the clades, which would result in an incorrect evolutionary conclusion.
Why are viruses considered to be nonliving?
A. They have no genetic material.
B. They cannot reproduce without a host cell.
C. They do not respond to their environment.'
D. They cannot use energy.
Answer:
B. They cannot reproduce without a host cell.
It is considered to be nonliving as it cannot reproduce on its own.
Explanation:
Without a host cell they are unable to reproduce as it does not have the necessary reproductive tools.
It reproduces by using the host cell's reproductive tools by taking control of it.
Viruses also don't need energy as living organisms do. So the answer may be D. as well.
Viruses are considered to be non-living because they cannot reproduce without a host cell.
WHAT ARE VIRUSES?Viruses are organisms that are incapable of reproducing without a living host.
Viruses can only make use of the mechanism of a living host, which they infect.
Viruses are structurally made up of a genetic material and a protein capsule.
Therefore, it can be said that viruses are considered to be non-living because they cannot reproduce without a host cell.
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What statement about enzymes and pH is true?
A Most enzymes require a very acidic environment to function well.
B Most enzymes require a very basic environment to function well.
C Enzymes are unaffected by changes in pH levels.
D Enzymes require a specific range of pH values to function.
Answer:
D. Enzymes require a specific range of pH values to function.
Explanation:
Enzymes function the best in a neutral pH, rather than in very acidic or basic environments.
Enzymes are very affected by changes in pH levels because they perform much better in neutral environments.
Which feature is not the result of a glacier carving out rock as it moves?
A. Cirque
B. Terminal moraine
C. Fjord
D. Horn peak
Answer:
B. Terminal moraine
Explanation:
Terminal moraine forms at the end of a glacier due to contact abrasive action of the rocks. The glacier carving out rock as it moves doesn’t occur in the terminal moraine.
The Cirque, Horn peak and Fjord are all processes characterized by the glaciers carving out rocks as they are moved by elements such as wind and water.
Question 17 of 50
2 Points
Which type of selection is the most likely to result in Speciation?
A. Stabilizing selection
B. Directional selection
OC. Disruptive selection
D. Artificial selection
Reset Selection
Answer:
C. Disruptive selection
Explanation:
Disruptive selection, also called diversifying selection, describes changes in population genetics in which extreme values for a trait are favored over intermediate values. In this case, the variance of the trait increases and the population is divided into two distinct groups. Two separate groups emerge.
Directional selection most likely to result in speciation. The correct option is B.
What is speciation?Speciation is the process by which a new plant or animal species emerges. When a group within a species separates from other members of its species, it develops its own distinct characteristics.
Speciation is the evolutionary process by which new and distinct species emerge. Species evolve through genetic modification. The new species is reproductively isolated from the previous species, which means it cannot mate with it.
Apple maggot flies - Originally only laid eggs on hawthorn apples, apple maggot flies now lay eggs on both hawthorn apples and other domestic apples in the United States.
The speciation is caused by one of the reason known as directional selection.
Thus, the correct option is B.
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stion 6/48which would be the best evidence that a cell is using active transport to move a substance across its cell
membrane?
A) Substances are moving rapidly across the cell membrane.
B) ATP is being rapidly consumed near the cellular membrane.
C) Substances are moving from high to low concentrations.
D) Substances are moving through channels in the cell membrane.
Answer:
B) ATP is being rapidly consumed near the cellular membrane.
Explanation:
Active transport is a form of transport used by living systems in which substances/molecules move across a membrane from a region where they are less concentrated to a region where they are highly concentrated. This movement occurs against the concentration gradient, hence it requires energy in form of ATP in order to occur. The transport is said to be "ACTIVE" if it is energy consuming.
Hence, based on the explanation above, the best evidence to showcase the occurrence of active transport in a cell is the rapid consumption of ATP near the cellular membrane. ATP will be used to pump needed substances into the cell via the cell membrane, serving as the semi-permeable membrane.
can there be justice when it comes to the environment and how
Answer:
Environmental justice is the fair treatment and meaningful involvement of all people regardless of race, color, national origin, or income, with respect to the development, implementation, and enforcement of environmental laws, regulations, and policies.
Explanation:
Environmental justice issues and examples include inadequate access to healthy food, inadequate transportation, air and water pollution, and unsafe homes.
Hope it helps :)
Describe the pathophysiology
Answer: pathophysiology , refers to the study of abnormal changes in body function that may causes some consequences, concomintan, disease of processes.hope it is useful to you.
Explanation:
A terrarium is a small, enclosed ecosystem. If you change certain aspects of the terrarium, the climate that exists inside it will also change. Examine the image of a terrarium. Then identify one attribute of the terrarium that you could change to alter the climate inside. How would this change mimic the climate changes that we see on Earth?
Answer: Putting a lid on the terrarium will increase the humidity.
Explanation:
Putting a lid on the terrarium will increase the humidity.
What is Humidity?Humidity is a measurement of the air's water vapor content. If there is a lot of water vapor in the air, the humidity will be high. As the humidity increases, it feels more humid outside.
In weather reports, humidity is frequently described using the word "relative humidity." The percentage of the maximum quantity of water vapor that the air can hold at a given temperature that is actually present in the air is referred to as relative humidity.
A chilling -10 degrees Celsius in the air (14 degrees Fahrenheit). At this temperature, the air can only hold 2.2 grams of water per cubic meter.
Therefore, Putting a lid on the terrarium will increase the humidity.
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Select the correct answer from the drop-down menu.
After getting the slide and microscope ready, Stella is eager to see the microscopic pond
water specimen! She crouches around her microscope and aligns her eye with the
microscope's eyepiece. But she's only able to see a bright white light.
At this point, no specimens or cells are visible on Stella's pond water slide. After taking a
moment to collect her thoughts, Stella realizes she can't see any lifeforms because
Answer:
the microscope is not in focus
Explanation:
Stella was only able to see white light through the eyepiece because the microscope is not in focus. She is supposed to bring the microscope into focus by using the coarse adjustment knob in conjunction with the fine adjustment knob. Both knobs are adjusted till the specimens or cells in the pond water present on the slide become visible through the microscope's eyepiece.
Which correctly lists the three types of rock particles that make up soil? A. air, clay, and sand B. clay, water, and silt C. sand, clay, and silt D. silt, water, and air answer C.sand, clay, and silt
Answer:
option.c
Explanation:
It is correct
The three types of rock particles that make up soil are sand, clay, and silt. Thus, the correct option is C.
What are Rock particles?Rock particles may be defined as those particles that are formed by the weathering of sedimentary rocks and construct small tiny particles.
In the production of soil, water molecules and atmospheric air are not required significantly. The gathering of tiny rock particles constitutes the formation of soil.
Therefore, the correct option is C.
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Select the best answer for the question.
A student conducts an experiment to see how music affects plant growth. The student obtains four identical
plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each
day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours
each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at
all.
1. In the experiment described in the scenario, what's the variable?
Answer:
A B and C because they all listen to music
What is found in every living
organism.
A. Carbon is
B. Hydroxide is
C. Neither carbon nor hydroxide is
Answer:
A I think sorry if its wrong
Answer:
A. Carbon
Explanation:
In every organism you can find CHNOPS; these elements are Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus and Sulfer.
How would you explain that the geological processes occurring today are similar to geological processes that took place a long time ago?
Answer:
Geological processes" are defined as the natural forces that changes the shape of Earth. Several geological processes include erosion, sedimentation and chemical weathering that affect the Earth’s surface.
So, the geological processes such as plate tectonics and erosion et-cetra are occurring long time and still occurring in the Earth environment.
What is the role of a cytoskeleton?
Answer:
B is the correct answer
cliare Beauchamp is a 31 years old woman who has had episodes of severe pain on one side of her head evry day for weeks. The lain lasts for up to 30 minutes and then subsides. She usually gets this pain during the fall or spring . Mrs Beauchamp is a smoker and drinks alcohol. she was having such severe pain one day that she went to the ER for assessment. She has been diagnosed with an autonomic nerve issue ?
Answer:
I hope this helps. The symptoms of autonomic nerve dysfunction can be some of or all of the following: dizziness, fainting - taking the BP in orthostatic form is a good indicator. They seem to show evidence of exercise intolerance and this can increase the headache pain if they continue. Many of them will sweat uncontrollably and may think it is hot flashes - but it is more than that. It can also reverse and person will not sweat enough. Abnormal protein build up in organs, and immune system attacks that actually think they are helping the body but are shutting it down, damaging various body systems IE kidneys......
Explanation:
Look up info on the following to assist you with learning about different aspects of these symptoms: Riley - Day Syndrome Idiopathic orthostatic HYPOtension, Shy Drager Syndrome, and sometimes even Parkinson's syndrome - organ failure will occur.
Answer:
I think the astics nerve
Explanation:
Describe the pathophysiology
In an experiment, 4 liters of water was observed to evaporate in 20 hours. What rate of
evaporation was observed in this experiment?
O A. 0.001 liters per minute
O B. 0.2 liters per hour
O C. 0.02
Х
D. 5 hours per liter
It’s not D
Answer:
B. 0.2 litres per hours
Please help with this question! Last time I asked a question people were being unfair and would try to get points of me with non real answers. it has been happening a lot so please real answers! Describe how heat moves in a convection current. How is this process responsible for moving earth’s tectonic plates?
Explanation:
Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat. ... Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth's crust.
Most energy enters ecosystems in the form of sunlight,
Please select the best answer from the choices provided
T
F
Answer:
TRUE, most energy enters ecosystems in the form of sunlight
CH3OH + HOCH3 = CH3-O-CH3 + HOH Is this reaction an addition reaction or a dehydration reaction or synthesis or whatever? A. Addition B. Dehydration Brainliest for the correct answer. Pls help
Answer:
B. Dehydration
Explanation:
Addition reaction is defined as the chemical reaction in which two different compunds combine together to form a new compund.
Dehydration reaction is defined as the chemical reaction in which water molecule (H2O) is removed from the reactant.
For example: RCO2H + R′OH ⇌ RCO2R′ + H2O
In the given equation: CH3OH + HOCH3 = CH3-O-CH3 + HOH
The reaction is showing dehydration because two molcules are combined aand water molecule is eliminated from the reactant.
Hence, the correct option is B. Dehydration.
Which occurs in both the lytic cycle and the lysogenic cycle?
destruction of host cell
integration of viral and host genetic information
production of virus particles
hijacking of host cell's metabolism
Answer:
D hijacking of host cell's metabolism
Explanation:
got it right on quiz
Refer to the tree of life shown above. What can you conclude about fungus?
Answer:
D
Explanation:
fungi are more closely related to bacteria than to archea
How is a clade differentiated from another clade
Answer:
A clade is a grouping that includes a common ancestor and all the descendant species of that ancestor. Clades are differentiated visually based on where they branch off from one another.
Explanation:
A clade is a grouping that includes a common ancestor and all the descendants (living and extinct) of that ancestor. Using a phylogeny, it is easy to tell if a group of lineages forms a clade. Imagine clipping a single branch off the phylogeny — all of the organisms on that pruned branch make up a clade.
Clades are nested within one another — they form a nested hierarchy. A clade may include many thousands of species or just a few. Some examples of clades at different levels are marked on these phylogenies. Notice how clades are nested within larger clades
Answer:
A clade is a monophyletic grouping in which all the organisms stem from the same branching point.
Explanation:
The organisms in a clade must all stem from the same branching point in evolutionary history, as represented in the phylogenetic tree.
Sweating when hot, shivering when cold, blinking when a bright light hits
one's eyes. These are examples of which characteristic of life?
organization
response to stimuli
growth and development
heredity (genes)
Answer:
I think it must be response to stimuli
Explanation:
Some receptors can detect several different stimuli but they are usually specialised to detect one type of stimulus: light - photoreceptors in the eye. ... touch, pressure, pain and temperature - different receptors in the skin. taste and smell - chemical receptors in the tongue and nose
You go on a trip to the Galapagos island to study the animals there for a paper you are writing on evolution, just like Darwin did. You spend 3 days taking notes on all the physical characteristics you can observe about the tortoises and then you spend 3 days observing the finches. What have you recorded? A. Inherited characteristics B. Environmental variation factors C. Phenotypes D. Genotypes
Answer:
C. Phenotypes
Explanation:
Taking notes on all the physical characteristics observed about the tortoises and then observing the finches, I have observed the phenotypes.
Phenotypes are the observable characteristics of a species which are the result of genetic expression influenced by the environmental factors.
So, phenotypes will be recorded during the trip while taking notes on all the physical characteristics which can be directly related to genotype and environmental factors.
Hence, the correct option is "C. phenotypes".
Which type of fault is under compression?
O A Transform
B. Reverse
c. Strike slip
O D. Normal
Answer:
B. Reverse
Explanation:
The reverse fault is the type of fault that is created by two faults under compression
Reverse fault is under compression. A reverse fault occurs when the hanging wall moves upward and over the footwall due to compression forces in the earth's crust.
Reverse fault is associated with whom?This type of fault is commonly associated with convergent plate boundaries, where two plates are moving towards each other and compressing the rock between them. The reverse fault is characterized by a steep dip angle and a short horizontal displacement.
A reverse fault is a type of dip-slip fault, where the movement of the rocks is vertical, and the hanging wall moves upward and over the footwall.
This type of fault is caused by compressional forces that push the rocks together and shorten the distance between them. As a result, the rock mass on one side of the fault plane is pushed upwards, and the rock mass on the other side is pushed downwards.
In summary, a reverse fault is a type of fault where the hanging wall moves upward and over the footwall due to compressional forces, and it is commonly found at convergent plate boundaries where the crust is undergoing compression.
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A cell membrane is very specific about what It allows across. How does this help the
cell?
XO A. It helps the cell absorb as many different molecules as possible.
O B. The cell works better when it contains fewer proteins.
C. Transport proteins allow only enzymes to pass through the membrane.
D. It is better for the cell if most molecules are prevented from entering.
Incorrect
It isn’t A
