According to the principle of maximum parsimony,
A. phylogenies based in DNA require the most base changes.
B. the preferred tree is the one that minimizes the amount of evolutionary change.
C. a large number of trees should be examined.
D. in the case of trees based on morphology, a parsimonious tree requires the most changes.
Answer:
The correct answer is B. the preferred tree is the one that minimizes the amount of evolutionary change.
Explanation:
The principle of maximum parsimony selects the cladogram or phylogenetic tree that explains the phylogeny that has the minimum number of evolutionary changes. It is based on the principle known as Occam's Razor (Occam’s razor) formulated by William Ockham in the 14th century. This principle refers to a type of reasoning based on a very simple premise: other things being equal, the simplest solution is probably the correct one. This is because the simplest solution requires the least number of assumptions and logical operations. The basic premise in Parsimony is that taxa that share a characteristic (similarity) do so because they inherited that characteristic from a common ancestor, homology.
How many meters does sunlight reach down into the ocean?
Under the appropriate circumstances, sunlight entering the sea can penetrate around 1,000 meters into the ocean, although there is rarely much light beyond 200 meters.
The euphotic zone can stretch down to a depth of 80 meters (m) in crystal-clear tropical waters. The euphotic zone may be less than 10 m deep in places close to the poles since sunlight does not penetrate there as deeply. The euphotic zone may only be a few centimeters deep in murky, turbid water.
Light can only go so far below the ocean's surface due to the ocean's extreme depth. The water molecules scatter and absorb the light energy as it passes through them. Light is so dispersed at great depths that nothing is left to be detected.
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1. Describe the structure of DNA.
2. What does a nucleotide consist of?
3. What are the base-pairing rules?
4. If one DNA strand reads CCGTAATGCAT, what will be the sequence of the
complementary strand?
Answer:
DNA bases pair up with each other, A with T and C with G, to form units called base pairs. Each base is also attached to a sugar molecule and a phosphate molecule. Together, a base, sugar, and phosphate are called a nucleotide. Nucleotides are arranged in two long strands that form a spiral called a double helix.
A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.
GGCATTACGTA
Explanation:
Name the two principles of Mendelian genetics: Principle of ______ and Principle of ______.
the principle of segregation
the principle of independent assortment
Will mark brainliest #5
Answer:
A
Explanation:
The liver acts like a filter and takes the toxins from the bloodstream, like alcohol.
10. The organ that stores swallowed food and liquid, mixes up digestive juices with
the food and liquid, and sends it to the small intestine.
A. Mouth
C. Stomach
B. Rectum
D. Intestines
Answer:
stomach
Explanation:
stomach is the answer pal
Answer:
Stomach
Explanation:
Stomach is the organ that stores swallowed food and liquid, mixes up digestive juices withthe food and liquid, and sends it to the small intestine.
Which of the following scientists DID NOT disprove spontaneous generation? *
Pasteur
Hooke
Redi
Spallanzani
Hooke didnt disprove spontaneous generations!
Jasmine and Marcus are at the park, and Jasmine makes the following statements. Which of them is an inference?
Answer:the plant is producing oxygen so c
Explanation:
Which color of light has more energy?
1) Blue
2) Red
*HELP ASAP
Depletion of nonrenewable resources is often a result of:
1)environmental laws
2)human population growth
3)reforestation
4)recycling
Answer:
Depletion of nonrenewable resources is often a result of reforestation.
Answer:
2 -- Human Population Growth
Explanation:
The rest have no effect on nonrenewable resources because they are renewable, or replenishable. The more humans expand, they more resources they need such as gas, coal, and oil. Due to the fact that resources such as those listed before can't be renewed, or replenished, it causes a loss in those resources (depletion).
Which feature of Earth is part of the geosphere?
O air
O fish
O rocks
Oglaciers
HELP ME PLEASEEEEE
Answer:
Rocks
Explanation:
Geo means “earth.” The Earth’s geosphere (sometimes called the lithosphere) is the part of the Earth that includes all the rocks, minerals and landforms of the surface and interior that make up the Earth. It starts at the ground and extends all the way down to Earth’s core.
The feature of the Earth that is part of the geosphere is rocks. The correct option is C.
What is the geosphere?The geosphere is made up of every rock on Earth, from the melting rock beneath the crust to the massive, age-old mountains to the sand grains on the seashore.
The biosphere, a global ecosystem that includes all life on Earth, has a home in both the geosphere and the hydrosphere and lithosphere, etc. Organisms live in both, the geosphere and the hydrosphere.
The geosphere is always moving because the tectonic plates are always moving, and they sometimes collided with each other. The formation of new landmass, volcano eruptions, lava, molten magma, plants and other things, earthquakes, etc. all happened in the geosphere.
Thus, the correct option is C. rocks.
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A farmer tested the soil in a field and found that there was a high nitrate salt concentration. The farmer then grew a crop in this field. After the crop was removed, the soil was tested again. The nitrate salt concentration had decreased.
Answer:
The crops has extracted the nitrates from the soil
Explanation:
Complete question
Why?
Solution
The crops has extracted the nitrates from the soil for its nourishment and metabolic requirement. Hence, the concentration of nitrate after the crop cultivation has reduced as compared to the concentration of nitrate prior to the crop cultivation.
Question 3 of 10
The surface area of a sphere can be approximated as follows:
Surface area = 411/2;
where ris the radius of the sphere;
Ti is a constant that is roughly equal to 3.
Using the simple approximation above, calculate the surface area of a sphere
with a radius of 5 meters.
A. 500 m2
B. 900 m2
C. 3,600 m2
D. 300 m2
Answer:
D. 300 m²
Explanation:
A sphere is a three dimensional object with a surface which as like that of a ball. A sphere is a set of points that are all at the same distance r from a given point in a three-dimensional space.
The surface area of a sphere is:
Surface area = 4πr²
where r is the radius of the sphere, π is a constant = 3
Given that r = 5 meters, hence substituting into the area equation:
Surface area = 4π(5)² = 4(3)(5)² = 300 m²
The weight of body is 420 N . Calculate it's mass..
Here,
Force = 420N
Gravity = 9.8m/s^2
Mass = ?
Now,
Force = Mass * Gravity
420 = Mass * 9.8
420/9.8 = Mass
Mass = 42.85Kg
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The pH of seawater is ___, making it alkaline. Seawater has a natural buffering mechanism. Carbon dioxide in seawater and is present in the form of __ ions, which makes the seawater alkaline.
Answer:
8.1 and h+
hope it helps you
PLEASE HELP ASAP LOL 50 POINTS
Answer:
I think it 50 answer
I think it is the answer
Healthy biodiversity provides
A. Protection of water resources
B. soils formation and protection
C. Nutrient storage and recycling
D. all of the above
Which statement best explains the difference between water temperature at
the poles and water temperature at the equator?
O A. The water is denser and saltier near the equator, so it holds more
heat.
B. The sun's rays strike the water at an angle at the poles.
C. Deep sea vents pump steam into the conveyor belt near the
equator.
D. Due to Earth's rotation, gyres near the poles flow clockwise.
Answer:
B. The sun's rays strike the water at an angle at the poles.
Answer:
b
Explanation:
At high latitudes, ocean waters receive less sunlight – the poles receive only 40 percent of the heat that the equator does. These variations in solar energy mean that the ocean surface can vary in temperature from a warm 30°C (86°F) in the tropics to a very cold -2°C (28°F) near the poles
what havoc would be caused if a horse was suddenly at the top of the food chain
that would be.... immensely chaotic
Does a virus have an independent lifecycle?
I NEED HELP!!! for living environment
Answer:
increase in the consumption of fossil fuels lead to all the other answers
Explanation:
increase in the consumption of fossil fuels
The products of cellular respiration are
Answer:
ATP, carbon dioxide, and water.
Explanation:
ATP, carbon dioxide, and water are all products of this process because they are what is created.
A diagram illustrates that grass is eaten by insects, birds, and mice. The insects are eaten by hawks, snakes, and toads. The birds and mice are eaten by foxes, hawks, and snakes. The toad is also eaten by the snake. Which best describes the diagram?
pyramid
food chain grid
food web
trophic level
Answer:
Food web
Explanation:
food web:
a system of interlocking and interdependent food chains.
Answer:
food web
Explanation:
food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains.
en que favorece la adaptación a la biodiversidad?
Answer:
i do not understand but if you translate to English
id be happy to help gracias
Explanation:
What level of biological organization would a section of a lung be?
What did Darwin discover about plants from his phototropism experiments?
Answer:
https://www.biology-pages.info/T/Tropisms.html
Explanation:
This link holds all the information you need :D
Explain how is sunlight distributed across the world
Answer:
The sun is distibuted across the world due to The environment works in a similar way to a car's heat engine. Winds, precipitation, and evaporation processes in the atmosphere, on the other hand, spread the sun's energy across the Earth. Conduction, convection, and radiation are the methods through which heat energy is transferred.
Explanation:
I took earth science
Which statement is true about the Earth’s oceans?
Answer:
They are all getting larger due to the movement of tectonic plates statement is true about the Earth’s oceans.
Answer:
Select the statement that describes this expression: 10 + one fourth x (5 + 3) – 3.
Explanation:
True or False
Insective plants are green but they eat insects.
Answer:
True
Explanation:
Insectivorous plants are green in colour even then they eat insects because of the fact that it contains chlorophyll in the leaf
The following map of the Gulf of Mexico shows reported sightings of whale sharks. What explanation best describes why the highest reported sightings occur near the mouth of the Mississippi River?
Whale sharks are bottom feeders, and this area is rich in bottom dwellers due to runoff.
Whale sharks are bottom feeders, and this area is rich in nutrients due to runoff.
Whale sharks are filter feeders, and this area is rich in plankton due to runoff.
Whale sharks are filter feeders, and this area is rich in fish populations due to runoff.