Answer:
B. theory
Step by- Step Explanation:
Scientific Theories are distinguished from practice
What will occur if a species is divided into two groups and allowed to reproduce in different environments for many generations?
Answer:
The original species will diverge into two new species. It will occur speciation. It will occur some sort of allopatric speciation.
Explanation:
When the original species is divided and placed under different environments, where they can reproduce for many generations, many changes or mutations will occur in each group. These changes will depend on each group´s environment and its ecological pressures and will lead to divergence. Pressures act on individuals and make them adapt to the new environmental conditions. Generation after generation, the genotype of individuals will increase the fitness to survive and reproduce. The fixation of mutations will increase the difference among both groups, up to the diverging point into two new species.
The biological concept of species states that individuals of the same species can reproduce because they have a genetic reservoir in common: many genetic variants.
Genetic variability is the measure of a species organism´s tendency to differentiate. In genetic variability, individuals of the same species are not identical. They are recognizable as members of the same species, but they differ in shape, function, and behavior. There exist variations among individuals of the same species.
Genetic variability originates from mutations, recombinations, and karyotype alterations. It allows or makes possible evolution.
Allopatric speciation consists of the geographic separation of a continuous genetic background giving place to two or more new geographically isolated populations. These separations might be due to migration, extinction of geographically intermediate populations, or geological events. In this speciation, some barriers impede genetic interchange, or genetic flux, as the two new populations that are separated can not get together and mate anymore. These barriers might be geographical or ecological.
The process of allopatric speciation involves different steps:
• The emergence of the barrier.
• Interruption in the genetic interchange
• The occurrence of new mutations and their accumulation in time in each population. Slow and gradual differentiation.
• Genetic divergence by natural selection and reproductive isolation makes it impossible for the two groups to mate even if the barrier disappears.
• Prezigotic isolation mechanisms favored by selection once occurs a secondary contact between the new species in formation.
Answer:
divergence, potentially giving rise to two different species
A botanist observes a large population of a particular type of beetle eating the leaves of one tree but not the leaves of a nearby tree. What should the botanist do first to study the interaction of these organisms in the ecosystem?
A. Remove the beetle population from the tree, and study them in the lab.
B. Identify the species of the beetle and the species of both trees.
C. Determine why the beetle is eating one tree but not the other.
D. Recommend a treatment that will keep the beetles from eating the trees.
ANSWER: B. identify the species of the beetle and the species of both trees (quizlet)
Answer: It's B,
"Identify the species of the beetle and the species of both trees."
The botanist should firstly study the interaction of these organisms in the ecosystem by identifying the species of the beetle and the species of both the trees. Therefore, the correct option is B.
What are species?A species is a group or organisms that can interbreed and produce viable offspring. The concept of species is used to define a unique type of organism, and it is the basic unit of biological classification.
Species are considered to be different from one another if they are unable to interbreed and produce offspring that can survive and reproduce. This definition of species is known as biological species concept.
In the case given in the question, the botanist should first identify the species of both the beetles and the trees. Then try to deduce a relationship between them which could clarify that the reason of the beetles feeding on those specific trees. Hence, the correct option is B.
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Using data from seismic waves, geologists have learned that Earth’s interior is made up of several
a.
continents.
b.
layers.
c.
ridges.
d.
trenches.
Please select the best answer from the choices provided
A
B
C
D
What is the resistance of a circuit with a voltage of 10 volts (V) and a current of 5 amps (A)? Use Ohm’s law to calculate the resistance.
The resistance of a circuit with a voltage of 10 V and current of 5 A is
ohms.
Answer: R = 2 ohm
Explanation: Based on the Ohm's law
U = R*I ---> R = U / I
R = 10 / 5
R = 2 ohm
Answer:
Answer : The resistance of a circuit is 2 ohm.
Explanation:
Using Ohm's law :
Or,
where,
R = resistance of a circuit = ?
V = voltage of circuit = 10 volts = 10V
I = current flowing in a circuit = 5 A
Now put all the given values in the above formula, we get the resistance of circuit.
Therefore, the resistance of a circuit is 2 ohm.
During a fight-or-flight response, which of the following is not an effect on the animal's body?
A. Increased heart rate and breathing B.ncreased digestion
C.Relaxed bladder
D.Increased blood flow to the muscles
Answer:
B,thats the only flight or fight resopnse in the animals body i could think of at the time. increase digestion i dont think the digestion would be effected by the fight-or-flight response.in my opintiton everything else seem like everything else would seem to be affeacted.
Only 3% if the water ib Earth us freshwater. About 2/3rds of that water is not available for
humans use because ..
Answer: 2/3 of the water is not availible for human use because it is salt water not fresh.
Explanation:
will a point mutation or a frameshift mutation have a larger impact on the protein coded for by the DNA?
Answer:
frameshift mutation (i think)
Explanation:
because it messes up the whole strand by deleting or inserting a base. honestly not 100% sure so take this with a grain of salt lol
Explain how an individual DNA mutation can become an adaptation in a population
Answer:
Explanation: Genetic variations that alter gene activity or protein function can introduce different traits in an organism. ... Over time, as generations of individuals with the trait continue to reproduce, the advantageous trait becomes increasingly common in a population, making the population different than an ancestral one.
Answer:
Due to the process of natural selection they gene can be matched and shown I need the offspring.
Explanation:
The warmer the environment is and the closer an environment is to the equator, the higher the biodiversity of the environment. Based on
these observations, which of these environments has the greatest biodiversity?
A. tundra
B. desert
c. tropical rainforest
D. grasslands
HELP BRAINLIEST
Why are formation and decay considered a cycle of nature?
The formation and decay is considered a cycle of nature due to the governance of nature.
Why are formation and decay considered a cycle of nature?
The formation and decay is considered a cycle of nature because this process is controlled by natural forces of the environment. Nature provides the environment for the formation and decay processes.
So we can conclude that the formation and decay is considered a cycle of nature due to the governance of nature.
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Urgent!! Why is it important to make exact copies of cells?
Answer:
Producing exact copies ensures that when a cell divides, the offspring cells will receive the same genetic information as the parent cell. cancer can result when errors in the replication of DNA in genes that control how a cell divides.
Explanation:
hope this helps...
have a nice day
whats best describes the relationship between cells, DNA, and proteins
Which statement describes transform boundaries?
O Rift valleys are formed.
O Mountains are created.
O Faults form in the lithosphere.
Plates move toward each other.
Transform boundaries are described as faults that emerge in the lithosphere. So, the correct option is C.
What are Transform boundaries?Transform boundaries, which are often referred to as conservative plate boundaries, are places where two tectonic plates move past one another while moving in opposite directions along a fault in the Earth's crust.
Transform borders happen when two tectonic plates move past one another horizontally via a lithosphere fault. As a result of this movement, rocks may break and slide along the fault, resulting in earthquakes. Transform borders do not include the creation or destruction of crustal material, unlike divergent boundaries where rift valleys are formed or convergent boundaries where mountains are built when plates move towards one another.
Therefore, the correct option is C.
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An earthworm helps to break up soil so that the roots of plants may receive oxygen. This enriches the soil and provides food for other organisms. What do these characteristics describe about the earthworm?
the answer is its niche
this is because a niche refers to the position or function that an organism occupies within its environment among other species of plants and animals.
hope this helped xoxo
how do plants move carbon from the atmosphere
If all cells in your body contain the same set of DNA, why is it that some cells become muscles calls, some become skin, or nerve cells?
Answer:
This is due to CELL DIFFERENTIATION
Explanation:
All living cells are made up of the genetic material called DNA, which are exactly of the same sequence across all cells. However, the cells that contain the same DNA sequence are different in function.
This is as a result of a process called CELL DIFFERENTIATION, which is the process whereby cells specialize or become specific in function as a result of the expresssion or not of certain genes in the DNA sequence of each cell. In other words, cells might contain same DNA sequence but the genes are not all expressed at the same time, leading to the different function. Therefore, some cells become muscle cells, skin, or nerve cells with different functions.
WILL GIVE BRAINLIEST
Which of the following lifestyle modifications is NOT likely to be helpful in controlling genetically linked diseases?
A) taking a healthier diet
B) exercising regularly
C) maintaining a proper weight
D) planning to quit smoking at 40
E) regulary having medical check ups
Answer:
E) regularly having medical exams
Explanation:
Hope this helps!!
Answer:
D) Planning to quit smoking at 40
Explanation:
If brown eyes are dominant to blue eyes, what phenotype would be expressed if the genotype is bb
brown because brown is dominant to blue eyes
Which option identifies the effects of poorly managed grazing leading to overgrazing.
increase in erosion
increase in weeds
increase in inedible grasses increase in animal populations
Answer:
increase in animal populations
Scientific Discoveries
3. An important clue to the structure of DNA was provided by
A. a protein analysis of a muscle cell.
B. an X-ray diffraction photograph of DNA.
C. an MRI image of a brain cell.
D. a microscopic examination of a fruit fly.
Check Answer
Answer:
B
Explanation:
I got it right :D
An important clue to the structure of DNA was provided by an X-ray diffraction photograph of DNA. Thus, the correct option is B.
What is X-ray diffraction?X-ray diffraction (XRD) is a widely used technique to assess the crystallinity and structure of the solid samples such as biomolecules like DNA and proteins. The crystal X-ray diffraction phenomenon results from the scattering process in which the X-rays are scattered by the electrons of the atoms which are present in the sample without any change in the wavelength.
Rosalind Franklin's X-ray diffraction method patterns of the DNA molecules rendered the important clue from which DNA has the structure of a double helical structure. The most famous X-ray photograph, the Photo 51 is still printed in most of the Biology textbooks.
Therefore, the correct option is B.
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How can ecosystems benefit from wildfires
Answer:
Fires often remove alien plants that compete with native species for nutrients and space, and remove undergrowth, which allows sunlight to reach the forest floor, thereby supporting the growth of native species. ... Overall, fire is a catalyst for promoting biological diversity and healthy ecosystems.
Explanation:
What caused the massive erosion of the
Galapagos Islands in the late 1900s?
A-reduced sea turtle population due to monofilament nets
B-reduced vegetation due to goats
C-increased population of sea cucumbers due to new laws
D-increased recycling due to conservationists
Answer:
A Reduced sea turtle population due to monofilament nets
Explanation:
Hope this helped you
I believe that the correct answer is C-increased population of sea cucumbers due to new laws
A wave is propogating (produces or generates) energy from left to right. The particles of the medium are moving back and forth from left to right. What is this type of wave?
surface wave
longitudinal
transverse
electromagnetic
Answer:
transverse waves
Explanation:
Water cycle -
When water is removed from the soil and subsurface
water flows via roots to be used by the plant. Most of
the water that plants uptake passes though into the
atmosphere.
Answer:
This is the process of transpiration because it has to do with plants!
Select the correct answer.
Which degree of latitude designates the position of the equator?
A.
0
B.
45
C.
90
D.
120
Answer:
A
Explanation:
At which part of the cell are electrical signals transmitted between nerve cells?
soma
axon
myelin sheath
dendrite
Dendrite is regarded as the part of the cell in which electrical signals are
transmitted between nerve cells.
Dendrites receive signals or communication from other cells and help to
transport the electrochemical charge from other neurons to the cell body or
axons which conduct them to the central nervous system for processing.
Dendrites have also been found to release neurotransmitters which makes
their study more complex and diverse.
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For the below image label the 13.polar area and 14. Non polar area on the diagram
Answer:
http://images.pcmac.org/SiSFiles/Schools/AL/MobileCounty/CauseyMiddle/Uploads/DocumentsCategories/Documents/NBp10_Cell_Transport_-_Amoeba_Sisters_%7BSIS5384FB64E650%7D.pdf
use this link, you will find the answer
Explanation:
sooooooooooooooooooo
Sooooo can some body solve this if ur smart:
:)
Q1. (2 ²∕⁵ x 3 ¹∕⁸) x 3¹∕⁵ ÷ 3¹ also : Q2. A shopkeeper has 12 dozen eggs he sold 2/3 (two upon three) of the eggs everyday Find the total number of eggs he sold and how many eggs were left?
answer for Q1) 8
answer for Q2) 216 eggs per day you find the other answer and show the step by step for both questions.
WILL GIVE BRAINLIEST!!
Which of the following is NOT a factor to consider when determining a person's optimal health?
A) nutrition
B) education
C) genetics
D) exercise
E) stress level
Explanation:
B. education pls mark brainliest if this helps :)
Answer:
B) education
Explanation:
Health is determined by nutrition, genetics, regular exercise, and stress levels.
Imagine you had to sort all of the living things on earth into groups. How would you sort them?
All of the Earth's living organisms can be divided into distinct categories in a variety of ways, but the most popular manner is through the use of a hierarchical classification scheme called taxonomy.
What is Taxonomy hierarchy?In this hierarchy, organisms are grouped based on shared traits, with each level getting more specialized as you descend.
From the broadest to the narrowest, the main taxonomic levels are:
The domain level of classification divides organisms into different cell types, and it is the widest level of classification. Eukarya, Archaea, and Bacteria are the three domains.
Kingdom: This level of classification divides organisms into groups based on their overarching traits and cellular make-up. Animalia, Plantae, Fungi, Protista, Archaea, and Bacteria are the six kingdoms.
Phylum: This level of classification divides creatures into groups depending on the structure and organization of their bodies.
Class – Based on similar structural, physiological, and behavioral traits, organisms are grouped at the class level.
Order: Organisms are categorized at the order level according to shared traits within a class.
Family: Within an order, organisms are grouped at the family level based on shared traits.
Genus – Based on their evolutionary connections and similar traits, species are grouped at the genus level.
Species - The species level of classification is the most detailed and divides organisms into groups based on their propensity to interbreed and give birth to live offspring.
Based on their traits and evolutionary connections, all species of life on Earth can be divided up into separate groupings using this classification method.
Therefore, all of the Earth's living organisms can be divided into distinct categories in a variety of ways, but the most popular manner is through the use of a hierarchical classification scheme called taxonomy.
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