Answer:
Serotonin
Explanation:
Please answer this fast /Which option is a research question that will most likely need to be broadened?
The topic that would need to be broadened is option B
Why would a research topic be broadened?
The research topic in B might be expanded, owing to a lack of relevant literature, feasibility issues, interdisciplinary connections, relevance and applicability, research objectives that need to be refined, grant requirements to be met, and data accessibility.
By taking this calculated risk, researchers can strengthen their theoretical base, get past real-world obstacles, and reach a larger audience—all of which add to the breadth and significance of their research findings.
If an organism has 46 chromosomes in their somatic cells, how many chromosomes do they have in their gametes?
The chart shows shared characteristics of three organisms. Which is supported by the information in the chart? (I WILL MARK BRAINLIEST PLEASE HURRY)
A. The common ancestor of rabbits, fish, and cats had fins.
B. The common ancestor of these three organisms did not have lungs.
C. Rabbits and fish only share one characteristic and are not related.
D. Cats are more closely related to fish than to rabbits.
Answer:
ive taken this test before and its c
Explanation:
Answer:
b
Explanation:
1.Why is 'yellow spot' of an eye called the area of best vision?
2. Why is it advisable to breath through nose than mouth?
Will mark branliest
You are working with a piece of electric wire that is coated with red rubber insulation. If you cut that wire in half, what would you see inside?
A
You would see that it is hollow inside.
B
You would see electrons flowing through it.
C
You would see a solid piece of wire underneath the coating.
D
You would see a beam of light flowing through it.
Which of these statements are true about scientific theories and laws?
Answer:
laws are often expressed as math formulas
Explanation:
Which statement is true about natural selection? Choose the correct answer.
a. It forms new traits.
b. It acts on variable traits.
c. It forms new genetic material.
d. It acts on genetic material directly.
Final answer:
Natural selection acts on variable traits within a population's genetic makeup, favoring those that offer a reproductive advantage and contribute to an organism's fitness in its environment. So the correct option is b.
Explanation:
The correct answer to the question 'Which statement is true about natural selection?' is b. It acts on variable traits. Natural selection does not directly form new traits or genetic material; rather, it acts upon the variability that exists within a population's genetic makeup. When new traits appear, they do so mainly through mutations or gene flow. For these traits to become commonplace in a population, they must offer some kind of advantage—be it through natural or sexual selection—which allows organisms with favorable traits to reproduce more successfully over time.
Natural selection is a key mechanism of evolution, where the organisms better adapted to their environment tend to survive and produce more offspring. This process acts on an organism's phenotype, which is the set of observable characteristics determined by its genetic makeup or genotype, and environmental factors. It is within these phenotypic variations that natural selection operates, favoring certain traits over others.
Which of the following animals does not lay eggs? Spiny anteater Robin Leopard Frog
Answer:
Spiny anteater
Explanation:
Answer:
Leopard
Explanation:
The spiny anteater, robin and frog all lay eggs. The spiny anteater is a monotreme-or a type of mammal that lay eggs. A robin is a bird, and a frog is an amphibian. Both birds and amphibians lay eggs.
The leopard is a mammal, therefore it has live births. So, it is the choice that does not lay eggs.
What impact did the cloning of Dolly of have on society?
Final answer:
The cloning of Dolly the sheep had a significant impact on society by sparking ethical debates and highlighting the complexities and inefficiencies of cloning technology.
Explanation:
The impact of Dolly the sheep, the first mammal to be cloned from an adult somatic (body) cell through nuclear transfer, was profound on society and sparked debates on the ethical implications of cloning technology. Dolly was a Finn-Dorset sheep because the nucleus that was introduced into the enucleated egg cell to create her came from a Finn-Dorset individual. While the cloning of Dolly represented a significant scientific breakthrough, it also raised concerns regarding the potential for cloning to cause aging-related issues, as Dolly died relatively young, with speculation that the older age of the DNA used may have affected her longevity. Additionally, subsequent cloning efforts in other species have led to animals with a variety of health issues, including facial, limb, and cardiac abnormalities. The debate on cloning expanded beyond animals to humans, with discussions about therapeutic cloning for stem cells facing ethical resistance. Importantly, cloning is a complex and inefficient process; 277 attempts were required to create Dolly, which highlights the significant challenges and potential risks involved.
Which relationship is an example of commensalism?
Answer:
i dont know look on google
Explanation:
2. What are the four functions of a root?
Answer:
1) absorption of water and inorganic nutrients, 2) anchoring of the plant body to the ground, and supporting it, 3) storage of food and nutrients, 4) trans locating water and minerals to the stem.
Explanation:
Just looked it up
Answer:
1) absorption, 2)anchoring the plant to the ground, 3) storage of food and nutrients, 4) transporting and locating water.
Explanation:
How are photosynthesis and cellular respiration dependent on one another?
Answer:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
Explanation:
The products of photosynthesis are the reactants of cellular respiration in plants and that is how they are dependent on each other.
What is cellular respiration in plants?
Plants also need oxygen for respiration. This process results in the evolution of carbon dioxide. Plants do not have any specialized organs for gaseous exchange. , Stomata present in leaves and lenticels found in stems help in gaseous exchange in plants. Their pace of respiration is low compared to humans and animals.
Breathing and respiration are not the same processes. Breathing is performed by both animals and humans. This is performed as a step in the process of respiration. Respiration is performed by plants for the production of energy. This is done by a process known as Cellular respiration.
In this process, the glucose molecules synthesized by the process of photosynthesis, in which energy from sunlight is captured and converted to glucose, are used. This is broken down in presence of atmospheric oxygen to produce energy.
Therefore, respiration and photosynthesis are dependent on each other.
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Two students are comparing scientific experiments to investigations. They came up with the following ideas. Student A: Testing plant growth in different types of soils Student B: Comparing the water level in a lake during different times of the year Which student gave an example of a scientific experiment? Student A because it requires experimental and control groups Student B because it requires a hypothesis Student A because it is preferably done in natural settings Student B because it is preferably done across a long period of time Help
Student A's example of testing plant growth in different types of soils is a scientific experiment, as it involves a controlled manipulation of variables with a control group. An experiment is a systematic procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
An example of a scientific experiment is provided by Student A: Testing plant growth in different types of soils. This is an experiment because it involves manipulating one variable (the type of soil) and observing the effect on a dependent variable (the growth of the plants). It also requires an experimental group and a control group, where the control group will use the same type of soil that the plants normally grow in, without any changes, to compare against the experimental groups with different soils. Student B's example of comparing the water level in a lake during different times of the year is more of an observational study since it doesn't involve a control group or the manipulation of variables.
An experiment is a type of scientific investigation carried out under controlled conditions, often in a laboratory or with controlled variables in a field setting. To experiment, scientists follow the scientific method, which includes formulating a hypothesis, designing a study with independent and dependent variables along with control groups, and analyzing the data to confirm or refute the hypothesis.
In the case of bacterial growth on gels, the independent variable is the type of gel used (A or B), while the dependent variable is the growth of bacteria measured after 24 hours. For an experiment to be valid, it's necessary to control the environmental conditions and other factors that could affect the dependent variable, such as temperature or light conditions in the case of plant growth.
The image shows Osorno in Chile, which last erupted in 1869.
A volcano with snow on the top.
Which phrase best describes Osorno?
shield volcano
active volcano
dormant volcano
explosive volcano
Answer:
C
Explanation:
Just took the test
4. What conditions produce the fastest chemical weathering?
a) Cold and dry
b) Hot and dry
c) Hot and wet
d) Cold and wet
Answer:
Hot and wet climates.
Why is important to include a measuring instrument (such as a ruler) in close-up photos?
Answer:
A photographer will often include a ruler in the shot to establish scale but always takes a duplicate image without the measuring device. In court, the defense could claim the device covered something important. And of course, pictures are of no value unless they're in context.
A Punnett square is used to predict the outcome of a genetic cross, however, does every actual cross result in the outcome predicted by the Punnett square? Why or why not? Explain your answer.
While a Punnett square predicts expected offspring genotypes and phenotypes based on probability, it doesn't ensure that each actual genetic cross will yield the exact predicted outcome due to the random nature of inheritance, especially in small sample sizes.
A Punnett square does not guarantee that every actual genetic cross will result in the predicted outcome, due to the nature of probability. While a Punnett square provides the expected frequencies of genotypes based on the law of probability, it does not account for random events that can lead to deviation from the expected ratios in small sample sizes. In large populations, the actual results tend to be closer to the predicted outcomes, but in small populations, there can be significant variance due to chance.
This is because Punnett squares depict all possible genetic combinations from two parents' alleles as equally likely. However, the law of large numbers states that the prediction becomes more accurate as the number of events (in this case, offspring) increases. In conclusion, while a Punnett square is a useful tool to predict potential genotypes and phenotypes in offspring, it is not an absolute predictor of individual genetic crosses.
______________ tissue makes up a root organ
what happens to water when an object hits it
Answer:
when object hit at large amount of force the water act on the object high force so pressure depend on area
Explanation:
when an object hits the water:
when object hit at expansive sum of drive the water act on the protest tall drive so weight depend on zone. "Speed"Newton’s impact depth condition tells us that when a high-speed question enters another, how distant it goes through depends as it were on their relative thickness and the length of the colliding protest.
Speed is insignificant. You indicated “a humanoid shape”, so I’ll accept the protest is an genuine human (too bad, buddy).
People have a thickness approximately rise to to water, and a chest profundity almost thirty centimeters long. This human will hit the water and halt within the space of thirty centimeters.
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What are the 2 characteristics that determine relative complexity in simple organism?
12 points! Please answer!
Folding is common in areas of thick _____.
igneous rock
metamorphic rock
sedimentary rock
Answer:
sedimentary rock
Explanation:
Sedimentary rocks are the type of rocks that formed by the deposition or accumulation of small mineral or organic particles on the floor of water bodies at the Earth's surface. some of the example of sedimentary rocks are Shale, limestone and sandstone.
Folding is common in areas of thick sedimentary rocks due to deposition of several layers of particles over one another or slumping of sedimentary material before it is lithified.
Hence, the correct option in sedimentary rock.
9)
Which action could humans take to slow the rate of global warming?
A)
Cut down trees for more efficient land use.
B)
Increase the consumption of petroleum products.
C)
Use alternate sources of energy such as wind.
D)
Reduce the use of fuel-efficient automobiles.
Alternate sources of electricity together with wind are used to gradual down the rate of worldwide warming.
Does using opportunity strength assets boom or decrease the rate of weather trade How?
There may be no route to shielding the climate without dramatically converting how we produce and use energy: almost forty% of us CO2 pollutants come from strong vegetation burning fossil fuels. however, we are able to flip things around. Renewable energy minimizes carbon pollutants and has a far lower effect on our surroundings.
What is the alternative strength supply of wind energy?The wind is clearly a form of solar power. Winds are a result of the heating of the ecosystem with the aid of the solar, the rotation of the Earth, and the Earth's surface irregularities. For so long as the sun shines and the wind blows, the power produced may be harnessed to send strength across the grid.
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PLZZ HELP WILL MARK BRAINLIEST
Athlete’s foot is a skin disease, usually starting between the toes or on the bottom of the feet, which can spread to other parts of the body. It is caused by a fungus that commonly attacks the feet, because the wearing of shoes and hosiery fosters fungus growth. The signs of athlete’s foot are dry scaly skin, itching, inflammation, and blisters.
A.
Mutulism
B.
Commensalism
C.
Parasitism
Answer:
C
Explanation:
Athletes foot harms the athlete but benefits the fungus (the parasite)
The fungus that causes athlete's foot and its human host have a parasitic relationship. The fungus benefits by thriving in the moist environment of the shoes and socks, feeding on skin cells and causing harm to the host.
Explanation:The relationship of the fungus causing athlete's foot to the human host could best be described as parasitism. This is because in a parasitic relationship, one organism (the parasite) benefits at the expense of another organism (the host). In this case, the fungus that causes athlete's foot thrives in the moist environment of the shoes and socks, and feeds on the skin cells, causing harm to the host in the form of itchy, flaky skin and blisters.
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A tapeworm attaches to the inner intestinal wall of a black bass and absorbs nutrients from the fish's food. What is the relationship between the tapeworm and the bass?
A. The tapeworm is the parasite, and the black bass is the host.
B. The tapeworm is the prey, and the black bass is the predator.
C. The tapeworm benefits from the black bass, but does not cause harm.
D. The tapeworm and the black bass both benefit from their relationship.
Answer:
A
Explanation:
in a relationship a parasite is described as the member who greatly benefits in the relationship at the other's expense.
Like riding a stubborn horse, when it bucks you off, it gets the pleasure from doing so, but you end up with a broken foot.
The host is who hosts the other, and the tapeworm is attaching itself to a host so the answer must be A
cannot be b since no proof of that relationship, in both c and d the bass is caused harm so it is not mutual or beneficial to the bass in any way
i hope this helps u!
pls give a brainliest and a thx ;)
Answer:
The tapeworm is a parasite, black bass host.
Bones are fastened together by
Answer:
joints
Explanation:
bones are connected to each other by joints.
Answer:
Joints
Explanation:
What type of erosion causes rocks to scrape the earth and create valleys
1. Water
2. Wind
3. Ice
Answer:
A.Water
Explanation:
Hope it helps ;3
An amphibian heart is shown in the diagram.
Which statement best describes the three chambers of the
heart?
Y receives oxygen-rich blood, X receives carbon dioxide
rich blood, and Z pumps blood.
Z receives oxygen-rich blood, X receives carbon dioxide
rich blood, and Y pumps blood,
X receives oxygen-rich blood, Y receives carbon dioxide
rich blood, and Z pumps blood.
Y receives oxygen-rich blood, Z receives carbon dioxide
rich blood, and X pumps blood.
Y
Z
Answer:
the answer is b
Explanation:
I believe that the correct answer would be C
I hope this helped :D
STAY SAFE!!!!!!!
ocean bulges are caused by
Answer:
It is caused by the moon's gravitational force.
Explanation:
The ocean also bulges out on the side of Earth opposite the Moon. The tidal force causes water to bulge toward the Moon and on the side opposite the Moon. These bulges represent high tides
Answer:
Two tidal bulges are created on opposite sides of the Earth due to the moon's gravitational force and inertias counterbalance.
I hope this helps :)
Explanation:
Which of the following processes can help dairy farmers generate a substantial amount of methane from the manure from their herds?
a-glycolysis
b-krebs cycle
c-fermentation
d-aerobic respiration
Answer:
B-Kreb’s Cycle
Explanation:
Krebs Cycle involves anaerobic digestion which would increase methane in cow manure.
Answer:
C fermentation
Explanation:
edge 2021
Dentify which type of natural selection is described in each case below.
Results in the evolution of the species:
Results in new species:
Favors traits at the two extremes:
No Increase in diversity:
One extreme trait is favored:
Diversity decreases:
Diversity increases:
Answer:
Results in the evolution of the species: directional selection
Results in new species: disruptive selection
Favors traits at the two extremes: disruptive selection
No Increase in diversity: directional selection
One extreme trait is favored: directional selection
Diversity decreases: stabilizing selection
Diversity increases: disruptive selection
Explanation:
i just it on edge
Answer:
Results in the evolution of the species: directional selection
Results in new species: disruptive selection
Favors traits at the two extremes: disruptive selection
No Increase in diversity: directional selection
One extreme trait is favored:directional selection
Diversity decreases: stabilizing selection
Diversity increases: disruptive selection
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