You have come across a website with the following
address: http://www.epa.gov. What does the ".gov"
in this Internet address mean?
A. The site can be accessed only by
government officials.
B. The content is political in nature.
C. The content is current.
D. The site is hosted by a government agency.
PLEASE HELP ASAP
46. If a species has experienced a genotype mutation that has greatly reduced its population size, but later the population increases, which of the following is most likely the consequence on the surviving population?
Organisms in the surviving population will be genetically superior, which will strengthen the population.
The natural selection of the surviving population will move from a normal selection to a disruptive selection.
The surviving population will be very different than the original population.
The surviving population will have very little genetic variation.
Answer:
Organisms in the surviving population will be genetically superior, which will strengthen the population
Explanation
Mutation are the fundamental forces of evolution,as they fuel the variability in the population
The following is most likely the consequence on the surviving population as Organisms in the surviving population will be genetically superior, which will strengthen the population.
What is genotype mutation?Mutation is the last supply of latest alleles in plant pathogen populations. Small populations have fewer alleles because of genetic glide and additionally due to the fact fewer mutations are generated in a small populace.
As a end result of the more occurrence of useful mutations, large populations of longer sequences can growth their health greater easily. It may also appear unexpected that populace length makes a distinction at mutation prices this small, however large populations have a bonus at numerous levels.
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Prokaryotes do NOT have
A. cell membranes
B. membrane-bound organelles
C. DNA
Answer:
B. Membrane-bound organelles
Explanation:
Prokaryotes don't have a nucleus compared to the eukaryotes which do and are considered as all living organisms
Answer: B.
Explanation:
Label the items on the picture by dragging to correct answer to the correct letter below the picture.
A=
B=
C=
D=
E=
F=
G=
Answer:
The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the South.
Explanation:
Which of the following is an accurate description of cosmic microwave background (CMB) radiation? Select the two correct answers.
A. CMB is uniformly distributed and of a uniform temperature across the universe.
B. CMB is constantly generated by stars.
C. CMB is remnant radiation from the Big Bang.
D. CMB is randomly distributed and of differing temperatures across the universe.
Answer:
if I am correct the answer should be C
The answer to the question Which of the following is an accurate description of cosmic microwave background (CMB) radiation is A: CMB is uniformly distributed and of a uniform temperature across the universe. and C: CMB is remnant radiation from Big Bang
The Big Bang is the scientific explanation of the origins of the universe. The Big Bang occurred some 13.77 million years ago.
At the occurrence of the Big Bang, the universe started to develop and the first few atoms were formed. As the universe was formed at the big bang, cosmic microwave background (CMB) radiation developed.
This cosmic microwave background (CMB) radiation is an electromagnetic radiation. CMB radiation is a faint cosmic background radiation filling space. CMB radiation is a remnant radiation from the Big bang. CMB radiation is uniformly distributed and of a uniform temperature across the universe. This cosmic microwave background radiation was first detected in 1965 by American astronomers Arno Penzias and Robert Wilson. This discovery of the cosmic microwave background radiation was evidence of the Big bang.Thus, the CMB is remnant radiation from Big Bang and CMB is uniformly distributed and of a uniform temperature across the universe.
So, the answer to the question Which of the following is an accurate description of cosmic microwave background (CMB) radiation is A: CMB is uniformly distributed and of a uniform temperature across the universe. and C: CMB is remnant radiation from Big Bang
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A tomato plant in a greenhouse was found to be
infected with tobacco mosaic virus. A few weeks
later, nearby plants were also found to be infected
with the virus.
Which of the following best describes how the
virus reproduced?
A The virus made its own spores.
B The virus produced seeds in the tomatoes.
C The virus used the host plant's resources and
machinery to reproduce.
D The virus immediately killed the host plant and
was free to reproduce.
Answer:
C. The virus used the host plant's resources and
machinery to reproduce.
Explanation:
Which words in the story help the reader understand the meaning of the word flourish in paragraph 1
Answer:
C: Find a way to thrive.
Explanation:
N/A
please help
Explain how you think the runner continues to make ATP when her oxygen is limited?
The heart pumps oxygenated blood to the _____ and deoxygenated blood to the _____. A) body:liver B) body:lungs C) brain:lungs D) lungs:nose Eliminate
Answer:
The Answer is B) body:lungs
Explanation:
The body sends oxygenated blood (blood enriched with oxygen) to the body where oxygen is used and blood becomes deoxygenated. This blood when received in heart is pumped to Lungs where oxygen is taken up by blood through alveoli in our lungs. This way deoxygenated blood gets oxygenated and is pumped to the rest of the body and the cycle repeats.
All other options are wrong as blood can only get oxygenated at lungs through small air chambers called alveoli where oxygenation takes place.
HELP!!! WILL GIVE BRAINLIEST!!!
Which of the following is an enample of thigmotropism?
Plant growing toward water
Plant turning away from light
Plant growing up a fence
Answer:
Thigmotropism is a plant turning away from something that it touches so i the its the second one
Explanation:
since it says the light is touching the flower and its trying to get away from i would say the second one
how does the body of a 100m sprinter produce energy for this event?
Identify the macromolecules labeled as A, B, and C and explain their role within the context of the cell membrane (as presented in the picture).
Answer:
may we see the picture??
Explanation:
6 Which of the following statements about shark teeth fossil evidence is not consistent with the scientific theory of evolution? (7 Points) A. Many fossils of Shark teeth have recently been found that are all the same size and color compared to modern sharks. B. Many fossils of Shał teeth have been found that show different sizes and serrations (saw-like edges). These fossil teeth have distinct differences and similarities to modern sharks. C. Many fossils of Shark scales have been found that have features of enlarged scales that resemble a brush. Our modern sharks do not have or need this type of scale to survive. D. A new shark fossil has been found that has characteristics in the size of the teeth and the serrations (saw-like edges) that are in between the older fossils found and the modern shark.
Answer:
A. Many fossils of Shark teeth have recently been found that are all the same size and color compared to modern sharks.
Explanation:
Evolution is the change in characteristics of a species over time and it relies on the process of natural selection.
The theory of evolution states that all species are related and gradually change over time.
Since all options except A show a change in the characteristics of shark teeth in the fossils found in relation to modern sharks, option A is the answer. Since, there is no change in characteristics between the Shark teeth in the fossils and that of modern sharks.
So, option A is the answer.
In a batch culture, bacterial cultures typically exhibit four different phases of growth. In which phase are the cells rapidly synthesizing proteins, but cell numbers are not changing
Answer:
Lag phase
Explanation:
The lag phase is the first phase of bacteria growth and it is refer to period when bacteria is first introduced to the culture and the time it started increasing. The lag phase is the phase bacteria adapt to growth conditions and start surviving in the environment. It is the time bacteria start growing and cannot divide. In this phase , RNA and enzymes are synthesized.
The African savanna is a large grassland region with few trees that is hot and
seasonally dry. A population of lions and a population of wild dogs living there are
most likely to compete with each other for *
(1) mates
(2) water
(3) air
(4) sunlight
Answer:
Water.
Explanation:
OK for mates, it doesnt make sense cuz they are different animals, soo it's unlike for a lion to mate with a savanna dog.
For air, there is plenty, they arent trap in the same bubble (if you know what I mean)
And sunlight, its a large grassland and not alot of trees, so mostly likely they are in it all the time.
B b
B BB Bb
b Bb bb
B = brown eyes b = blue eyes
According to the Punnett Square shown above
A.
there is a 75% probability that an offspring will have blue eyes and a 25% probability that an offspring will have brown eyes.
B.
there is a 75% probability that an offspring will have brown eyes and a 25% probability that an offspring will have blue eyes.
C.
there is a 50% probability that an offspring will have brown eyes and a 50% probability that an offspring will have blue eyes.
D.
there is a 100% probability that an offspring will have one brown eye and one blue eye.
Answer:
B
Explanation:
there is a 75% probability that an offspring will have brown eyes and a 25% probability that an offspring will have blue eyes.
Which step of cell division is the end of the cycle where 2 daughter cell have separated?
A Interphase
B. Anaphase
C. Metaphase
D. Cytokinesis
Answer:
D
Explanation:
im pretty sure its cytokinesis
Answer:
D.
Explanation:
Make a list of benefits from adding ethanol to gasoline?
Which process will directly result in organic matter being added to the soil?
water freezing in cracks of rocks
glaciers carving out a valley
river water eroding the banks of a stream
bacteria breaking down dead matter
Answer:
I think it should be the last one, "bacteria breaking down dead matter" hope this helps !!
Why did NASA design the Lunar Prospector spacecraft to crash into the Moon?
A.
to find the presence of water
B.
to find the strength of the lunar surface
C.
to collect mineral samples on subsequent missions
D.
to find the chemical composition of the Moon
The simple structure of prokaryotes allows them to
A. become multicellular.
B. reproduce quickly and effectively.
Answer:
Hey mate....
Explanation:
This is ur answer.....
B. reproduce quickly and effectively.Hope it helps!
Brainliest pls.....
Follow me! :)
Binary fission is a method of cell division used by prokaryotes to reproduce. This procedure involves splitting one cell into two and copying the chromosome, just like mitosis in eukaryotes. Thus option B is correct.
What is simple structure of prokaryotes?Prokaryotic cells lack organelles, have no nucleus, and are significantly smaller than eukaryotic cells.
A cell wall protects every prokaryotic cell. Many additionally include a polysaccharide-based capsule or slime layer.
The nucleoid of prokaryotic cells normally houses a single, circular chromosome. Prokaryotic cells can replicate more quickly than eukaryotic cells because they typically only contain one circular chromosome.
A prokaryotic cell can really go through two cycles of DNA replication before the cell divides.
Therefore, simple structure of prokaryotes allows them to reproduce quickly and effectively.
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Name three effects on an ecosystem when biodiversity is lost
Answer:
At higher levels of extinction (41 to 60 percent of species), the impacts of species loss ranked with those of many other major drivers of environmental change, such as ozone pollution, acid deposition on forests, and nutrient pollution.
Explanation:
Answer:
There are a lot because without biodiversity there is no balance in the ecosystem.
Explanation:
species loss(some animals start dying)
environmental change(kind of like climate change)
Pollution(wild fires, pollution in waters and nutrients)
Hope this helps:)
How does mining impact the environment?
It has a positive impact on the environment by permanently altering the ecosystem.
It has a positive impact on the environment by releasing chemicals into the environment.
It has a negative impact on the environment by allowing toxic chemicals to harm wildlife.
It has a negative impact on the environment by providing new niches for wildlife to inhabit.
Answer:
It has a negative impact on the environment by allowing toxic chemicals to harm wildlife
Mining affects the environment and has a negative impact on it, this type of human activity produces toxic chemicals that harm wildlife.
What are the impacts of mining?Mining has a significant impact on the environment, as the development of this activity almost always involves suppression of vegetation, exposure of the soil to erosive processes with changes in the quantity and quality of surface and underground water resources, in addition to causing air pollution.
With this information, we can conclude that Mining affects the environment has a negative impact on the environment, allowing toxic chemicals to harm wildlife.
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You want to know if the temperature of water affects how quickly a cube of
sugar will dissolve, or seem to disappear, into the water. In a controlled
experiment, what would be the responding (dependent), variable?
O The time it takes for the sugar cube to dissolve in water
O The amount of water
O The size of the sugar cube
The temperature of the water
Answer:
The time it takes for the sugar cube to dissolve in water
Explanation:
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Research the Clements successional theory and answer the following questions.
Were any scientific investigations conducted for proposing the theory? Was this theory tested or simply expected?
Were there any objections to the Clements theory?
Has the theory been subjected to peer review and publication?
Did the scientific community accept the theory?
Answer: The theories are tested under the controlled conditions of the experimental set up. On the basis of the above description, we can say that the scientific investigations are done in the form of experimentation trials before proposing a theory. The theory is tested and is not simply expected.
A theory is a well-established, tested explanation that provides a unified description of some aspect of the natural world.
Henry Gleason objected to the Clements theory. He emphasized that succession is more dependent on abiotic factors and their interactions with the environment.
Yes, the theory was published and widely spread.
Nearly all (around 97%) of the scientific community accepts evolution as the dominant scientific theory of biological diversity. Scientific associations have strongly rebutted and refuted the challenges to evolution proposed by intelligent design proponents.
Clements described plant succession as a developmental process that ultimately resulted in a mature, or climax, community. This theory was tested, objected, and was not widely accepted.
What is Clements successional theory ?Clements concluded plant succession as a developmental process by which the community acquired well-defined series of stages.
This ultimately resulted in a climax community. The climax community was indicator and expression of the climatic conditions determining it.
Yes there were scientific investigations conducted for this theory.Yes this theory was first tested and not simply excepted. It was first tested for being theory of plant succession.Yes there were objections for this theory that expressed by Gleason. He assumed that identification in Clement theory of particular kinds of vegetation assumed to be of too much homogeneity.The theory was published but not widely among classical economists. It went through review before getting published.Thus, here one can conclude that Clements successional theory was tested, objected, and published.
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A man lifts weights and exercises until he is very muscular. He works out
with the hope that his children will also be very strong. A problem with his
idea is that:
characteristics that are acquired during one's lifetime cannot be passed on to
offspring
not all offspring want these new characteristics
these characteristics may make the offspring less likely to survive
offspring are born weak
Answer:
This man hasn't been taught genetics.
Explanation:
That's not how they work-
ch
Sickle cell is a disease where a person has abnormally shaped blood cells.
The reason for the abnormal shape of blood lies in the underlying genetic
code.
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The sequence below shows a part of the genetic code for the HBB Gene.
This gene provides the instructions for making a protein called beta-globin.
The gene sequence is shown below. Use the sequence to create RNA and
the sequence of amino acids.
cha
Hemoglobin
DNA of HbA - hemoglobin in normal adults
DNA
3 to 5
C A C |G I G LG A C I G A LG G A
СТТСТС
RNA
Amino Acid
Answer:
mmmm science lip bite
Explanation:
Factors that cause a population to not grow exponentially are called?
4. Blood group which has both types of antibodies is.....
A-A
В- 0
C-AB
D-B
Answer:
c-ab is the only correct answer
Extinction is the dying out of a species. What can lead to the extinction of a species if
the environment changes?
A.
B.
sexual reproduction within a species
a lack of adaptations within a species
an increase in the reproductive rate within a species
the presence of genetic variations among a species
C.
D.
Answer:
the world shows no mercy so y should you
Explanation:
no mercy