The concepts of genetic recombination, the production of more offspring, and surviving the challenges of the environment are associated with natural selection.
Natural selection and evolutionNatural selection describes the adaptation and modification of populations of living things.
Members of a population are inherently varied, which means they differ in certain respects. Because of these differences, some individuals can be better suited for their surroundings, which is very important in enhancing the chances of surviving and increasing the chances of reproducing as well, thus passing on their adaptive features to their progeny. These beneficial features grow increasingly prevalent in the population over time.
The differences in traits can be explained by changes in the structure of the molecules that make up genes (DNA) are known as mutations. Mutations can occur at random (for example, when replicating cells make a mistake while duplicating DNA) or as a result of exposure to toxic substances or radiation in the environment.
Mutations can be damaging, neutral, or even beneficial, leading to the development of a new, beneficial characteristic. Mutations can be handed on to children when they arise in germ cells.
These processes are all important for the evolution of species.
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Compare and contrast photosphere vs chromosphere
Answer:
The photosphere is about 300 km thick. Most of the Sun's visible light that we see originates from this region. · The chromosphere is about 2000 km thick.
The Sun
The Sun can be split into two regions:
The interior is a sphere with radius R = 7x108m
The atmosphere lies on top and has the following layers (from innermost to outermost):
The photosphere is about 300 km thick. Most of the Sun's visible light that we see originates from this region.
The chromosphere is about 2000 km thick. We only see this layer and the other outer layers during an eclipse.
The corona extends outwards for more than a solar radius.
The size of the atmosphere compared to the Earth.
What do aquatic organisms need to breathe
A: Dissolved nitrogen
B: Dissolved oxygen
C: Dissolved Argon
D: Dissolved Carbon
Answer:
dissolved oxygen
Explanation:
it is because every animal whether on land or water needs oxygen.
[tex]\mathtt \red{B: Dissolved \: oxygen}[/tex]
Oxygen is essential for respiration as it helps in converting food into energy.
Marsupials are found in North America and Australia, but they would not have been able to swim across the ocean. According to scientists, how did this group of organisms come to live on two separate continents
Marsupials come to live on two separate continents when both continents were attached to each other.
What is the reason for the presence of Marsupials?Marsupials are the group of organisms that come to live on two separate continents a long time ago when both continents i.e. North America and Australia were joined or attached to each other. The supercontinent named Pangea began to break apart about 200 million years ago which results in the formation of continents.
Before this is broken, the Marsupials move to the Australian part from the North American part so we can conclude that Marsupials come to live on two separate continents when both the continents were attached to each other.
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What impact do you hope to have on the world and how will STEM play a role in making that impact, Essay pls help need ASAPPPP WILL MARK BRAINLIEST
My Answer:
I want to help my friends, family, and, of course, the rest of the world fulfill their ambitions. to overcome their fears and pursue their dreams STEM has a role in fostering creativity and divergent thinking alongside essential disciplines in schooling. It encourages and motivates young people to develop new technology and concepts. Students benefit from inquiry-based coursework because they focus on practice and innovation.
The term "pan-resistant" bacteria means:
a
Resistant to all antibiotics
b
Does not resist any antibiotics
c
Resistant to some antibiotics
d
Can only be treated by anti-viral drugs.
The correct solution is option a, resistant to all antibiotics.
Pandrug-resistant bacteria are defined by the bacterial strain, which is tolerant to all antimicrobial drugs currently available.Non-susceptibility to all drugs in all antimicrobial categories was termed Pan Drug Resistance(PDR). Resistance strategies are easily adopted by PDR microbes. Pan-drug-resistant Acinetobacter baumannii, pan-drug-resistant Klebsiella pneumonia, and pan-drug-resistant Pseudomonas aeruginosa are only a few examples.Because of their high vitality, colonization rate, and antibiotic resistance, these bacteria are frequently transmitted to patients.To learn more, refer:
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Plants in which division can live as long as 1500-2000 years?
Joint Firs are the plants in which division can live as long as 1500 to 2000 years.
Would a large hyena population exist?
Answer:
No
Explanation:
The spotted hyena (Crocuta crocuta Erxleben) and the lion (Panthera leo Linnaeus) are two of the most abundant and charismatic large mammalian carnivores in Africa and yet both are experiencing declining populations and significant pressures from environmental change.
Similar plant and animal fossils
have been found on continents
that are now separated by an
ocean. Why is this significant?
A. It gives evidence that the continents never
were connected.
B. It gives evidence that the continents used to
be connected.
C. It proves that the continents never were
connected.
D. This discovery does not help scientists in any
way.
Describe how the normal force changes as the mass of the crate increases.
I need help asap
The the normal force increases as the mass of the crate increases.
What is normal force?Normal force is the force which acts downwards as a result of the weight of the body.
The weight of the body is a product of the mass of the body and the acceleration due to gravity.
Based on the graph, the normal force increases approximately 10-fold as the mass of body increases.
Therefore, the normal force increases as the mass of the crate increases.
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Which of these is a problem
that increases as the human
population
increases?
A. the amount of Sun hitting the Earth
B. the amount of land needed to grow food
C. the salinity of the ocean
Answer:
the amount of land needed to grow food
The most abundant element in the atmosphere can also be found in?
white sugar and soy protein.
fruits and hydrogenated oils.
carbonated water and glucose.
beans and whey protein.
The most abundant element in the atmosphere is nitrogen and can be found in beans and whey protein. The fourth option is the correct one.
Which is the most abundant element in the atmosphere?The most abundant element in the atmosphere is nitrogen. It makes up about 78% of the air in the atmosphere.
Nitrogen is absent in white sugar (essentially consists of C, H, and O), carbonated water, and hydrogenated oils but is present in beans and whey protein.
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The most abundant element in the atmosphere can also be found in beans and whey protein. Thus, the correct option is D.
Which is the most abundant element in the atmosphere?Nitrogen is the most abundant element in the atmosphere that comprises up to 78% of the air.
Nitrogen is typically not found in fruits and hydrogenated oils, carbonated water and glucose, and white sugar and soy protein.
Therefore, the correct option for this question is D.
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ment forms the basis of organic
compounds?
carbon
Answer: you are right its carbon
Explanation:
Explain the interaction of photosynthesis and cellular respiration using two organism and it has to be focusing on the movement of carbon?
Answer:
plants doing Photosynthesis give off oxygen for a human to use in cellular respiration vise versa
Explanation:
For what purpose was NASA
formed by the United States in
1958?
A. building up national defense
B. repairing the country's infrastructure
C. increasing industrial efficiency
D. taking over the space program
The purpose of the formation of NASA by the United States in 1958 was D. Taking over the space program.
What was the US space program?The US space program centered on:
Solar system explorationOuter space explorationHuman spaceflightAerospace and aeronautics researchEarth science and space science.NASA was not formed for:
National defenseInfrastructure repairsIncreased industrial efficiency.Thus, NASA was formed in 1958 to oversee U.S. space exploration and aeronautics research in response to the Soviet Union's Sputnik I in 1957.
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Sugar is obtained from which plant
ANSWER
sugar cane, and sugar beets
Explanation:
sugar . It can be extracted from the above plants(sugarcane,sugar beets).it can as well as be obtained in a labatory. But labatory sugar isn't fit for consumption!
Answer:
Sugar cane and sugar beets
Which of the following kinds of questions cannot be answered within the
limits of science?
A. Questions about how the natural environment responds to a
specific change
B. Questions about how to prevent a natural event
C. Questions about the value of scientific knowledge
D. Questions about the causes of a natural event
What are the 4 major groups of birds?
Answer:
Strisores — nightjars, frogmouths, and other nocturnal birds, along with diurnal swifts and hummingbirds.
Columbaves — turacos, bustards, cuckoos, pigeons, sandgrouse, and mesites.
Gruiformes — cranes, rails, crakes, Sungrebe, flufftails, and others.
Aequorlitornithes — shorebirds, flamingos, grebes, gulls, tropicbirds, penguins, and other waterbirds.
Explanation:
Answer: The four important group of birds are 1. Game Birds 2. Preying Birds, 3. Perching Birds and 4. Flightless Birds.
Game birds are good runners but they cannot fly long distances. Their wings are short and round, but legs are massive. The beaks are also strongly built. Males are aggressive. One male maintains a group of 3-4 females. Game birds include partridges, pheasants, quail, grouse and pea fowls.
Preying birds are predators. They kill mice and other smaller animals and eat them. They have very strong, hook-like beak. There feet have curved and pointed claw. Their vision is very sharp. Preying birds include vultures, kites eagles and falcons.
Perching birds constitute the largest group of birds. When they sit on a tree, their digit grasp the branch of the tree in such a way that they cannot fall off the branch. Baya, larks, swallow, bulbul, finches, house sparrow, weaver-bird, crow and magpie are some common perching birds.
Flightless birds can run but they cannot fly. Flightless birds are large-sized. They generally lack tail feathers. The keel of sternum is absent. Flightless birds include ostriches, rhea, emu, kiwi, and penguin. Ostrich is the largest living bird. It weighs about 157 kg. Ostriches are very good runners. They are found in Africa and Arabia. Rhea is found in South America. It is smaller than ostrich. Emu is found in Australia. It is smaller than rhea. Kiwi is found in New Zealand. It is Southern hemisphere (Antarctica). Their body is suited for diving and swimming.
--Cited From Preserve Articles
Advantage of periodic report
Answer:
The advantage of Periodic reporting is that it provides a broader view of the safety profile of a drug.
write the issues of digestive health mention briefly
Pls help meee!!!!!!!!!!!!!
Answer: Front, When two different air masses meet, a front is formed. The boundary between these masses is called a stationary front. The air between the two masses never really combines.
draw a diagram of each of the following biogeochemical cycles, also known as nutrient cycles: water, carbon, and nitrogen cycles
The biogeochemical cycles shows the movement of materials in nature .
What is the biogeochemical cycles?The biogeochemical cycles shows the movement of materials in nature such as water, carbon and nitrogen.
These cycles are very important to life on the planet and help to sustain diverse ecosystems. The various cycles are shown in the images attached to this answer.
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The energy that fuels winter storms comes from
warm ocean temperatures that release energy via latent heat
the clash of warm and cold air masses
diurnal heating of the Earth's surface
sea breeze uplift due to pressure differences
The energy that fuels winter storms comes from the clash of warm and cold air masses and is denoted as option B.
What is a Storm?This is defined as a disturbed state of the atmosphere and is characterized by lightning etc.
The energy that fuels winter storms comes from the clash of warm and cold air masses of different temperature.
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lamarcks theory of evolution includes the concept that new organs in a species will appear as a result of
Answer:
continual increases in population size
Explanation:
example
giraffes necks getting longer
quizlet
Species evolve useing what process
A evolution
B natural selection
C acquired characteristics
D surprise
Answer:
b
Explanation:
what type of nitrate helps algae grow?
Answer:
potassium nitrate (KNO3)
Explanation:
Can somebody help me with this please?
The bicep muscle has an attachment point at the shoulder and one in the upper forearm. Look at these images of the bones of the arm. Imagine that the point of the arrow is where the force of the biceps muscle is applied to the bone.
4 images of the bones of the arm are shown. In image A, the bicep pulls the forearm upwards. In image B, the forearm pushes the bicep upwards. In image c, the forearm pulls to the right. In image D, the forearm pushes to the left.
Which image would result in the biceps muscle contracting and the forearm being lifted?
A
B
C
D
The contraction of the biceps muscle will make the forearm to be pushed forward hence the correct answer is option A.
What is the biceps muscle?The biceps muscle is a muscle that occurs at the upper arm. It is filled with connective tissue. The biceps muscle can be likened to a lever machine.
The contraction of the biceps muscle will make the forearm to be pushed forward hence the correct answer is option A.
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4. Which is a
consequence of global warming?
O rise in number of glaciers
O rise in number of ice-capped mountains
O rise in sea level
O rise in fossil fuels
Answer:
3. Rise in sea level
Explanation:
As the glaciers melt the water from the melted glaciers causes the sea to rise since more water is being added. Not answer 1 or 2 because ice melts as it gets warmer.
Which of the following actions can be performed
by RNA? Check all that apply.
It can carry genetic information from one part
of the DNA to another.
It can unwind the DNA strand for replication.
It can block the process of transcription.
It can remove genetic information from
various parts of cells.
Answer:
a. It can carry genetic information from one part of the DNA to another.
c. It can block the process of transcription.
Explanation:
The actions that can be performed by RNA are it can carry genetic information from one part of the DNA to another, and it can block the process of transcription. The correct options are A and C.
What is RNA?All living cells contain ribonucleic acid (abbreviated RNA), a nucleic acid with properties comparable to those of DNA. However, RNA is often single-stranded, unlike DNA.
Instead of the deoxyribose found in DNA, the backbone of an RNA molecule is formed of alternating phosphate groups and sugar ribose.
RNA does the translation process which is after the transcription, so that why it blocks transcription
Therefore, the correct options are:
A. It can carry genetic information from one part of the DNA to another.
C. It can block the process of transcription.
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Propose an ecological solution that would protect the tiger species by maintaining the complex interactions within an ecosystem. Provide at least one strength and one limitation to this proposed solution.
Tigers have the ability to coexist with their own predators like brown bears, leopards, etc. In this condition, it is the risk that these predators may threaten the tiger species. Therefore, it is required to construct a special habitat for tigers where they get enough resources without any threat.
What is an Ecosystem?An ecosystem may be defined as a place or area where members of different species live together and interact with one another for the purpose of food, shelter, and space.
The strength of the above solution is that the population of tiger species will be maintained in near future, but the limitation is that here we provide an artificial habitat for the tiger. Now, it depends on them to reside naturally or not.
Therefore, it is well described above.
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