Earth's temperature depends on the balance between energy entering and leaving the planet’s system. When incoming energy from the sun is absorbed by the Earth system, Earth warms. When the sun’s energy is reflected back into space, Earth avoids warming. When absorbed energy is released back into space, Earth cools. Many factors, both natural and human, can cause changes in Earth’s energy balance, including:
Variations in the sun's energy reaching EarthChanges in the reflectivity of Earth’s atmosphere and surfaceChanges in the greenhouse effect, which affects the amount of heat retained by Earth’s atmosphereThese factors have caused Earth’s climate to change many times.
During DNA replication the original strands separate so that daughter cells can be created. Each new molecule of DNA contains one of the original strand and one new strand this is called?
A. Conservative replication
B. Synthesis
C. Dispersive replication
D. Semiconservative replication
The correct answer is D. Semiconservative replication.
DNA replication is a process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. The mechanism of DNA replication is semiconservative, which means that each new DNA molecule consists of one original strand from the parent molecule and one newly synthesized strand. This ensures that the genetic information is passed on accurately to the daughter cells.
The other options are incorrect:
A. Conservative replication: This would imply that the original DNA molecule remains intact and a completely new molecule is synthesized alongside it. This is not the case with DNA replication; the original molecule is split into two single strands, and new strands are synthesized to complement each of these original strands.
B. Synthesis: While DNA replication does involve the synthesis of new DNA strands, the term synthesis alone does not describe the mechanism by which the replication occurs. It is too general and does not specify the nature of the replication process.
C. Dispersive replication: This would imply that the new DNA molecules are a mix of fragments from both the original and new strands. This is not consistent with the actual process of DNA replication, where the new strands are continuous and complementary to the original strands.
In a closed system, the total energy prior to an energy transformation is _______ the total energy after. A. equal to B. unrelated to C. greater than D. less than
Energy cannot be created nor destroyed. It can only be changed from one form to another. So when an energy transformation takes place in a closed system, the total amount of energy before the transformation is always equal to the total amount of energy after. A
which body system is responsible for producing heat?
When plants grow towards the sunlight they,____
A. Get Smaller
B. Die Faster
C. Get More Light
D. Live Longer
(02.04 HC)List an example of how an ecosystem can be affected by weather patterns. Explain how ocean temperatures affect weather patterns.
Answer:
An ecosystem is defined as the group of biological community in which the organisms interacts with the physical environment. They are mainly of two types, such as- the terrestrial ecosystem and the aquatic ecosystem. This two are further subdivided into different types.
These ecosystems are directly related to the weather and climatic conditions. A change in the weather or climate pattern will directly have an impact on the organisms that lives in these ecosystem.
For example, the freshwater ecosystem is rich in a variety of aquatic species. In a region where there is sufficient rainfall and temperature, there the organisms will exists without any difficulties. But, if the temperature in that area increases rapidly and there occurs heavy rainfall, then these river waters will spread in every possible direction due to their higher flow rate, resulting in flood and affecting the aquatic species. So the weather plays an important role in controlling the ecosystem.
The earth is comprised of nearly 70% of water bodies that includes the oceans, seas, rivers and lakes. This oceans in the equatorial region receives maximum amount of sunlight, due to which the area becomes warm and forms a low pressure zone, resulting in heavy rainfall. Whereas, towards the higher latitudes, these ocean water remains relatively cold. So the warm air from the equatorial region are carried towards the poles in order to maintain the equilibrium, resulting in various types of weather patterns.
Which characteristic CANNOT be inherited?
A.) Language
B.) Eye Color
C.) Hair Color
D.) Dimples
Please help
Which concept does the graph in Figure 6–1 illustrate?
please comment the answer, fast!!!!
Study the analogies of the endoplasmic reticulum and golgi complex. Which analogy correctly represents each organelle's function? A) in the process of proteins, the ER acts as a highway system and the golgi complex acts as a post office. B) in the process of proteins, ER acts as a post office, and the golgi complex acts as a highway system. C) in the process of proteins, the ER acts as an instruction manual, and the golgi complex acts as a storage shed. D) in the process of protiens, ER acts as a storage shed and, golgi complex acts as an instruction manual.
Answer:
The ER acts as a highway system, and the Golgi complex acts as a post office.
Explanation:
In protein processing, the endoplasmic reticulum serves as a highway system, producing and moving proteins, and the Golgi complex functions as a post office, modifying, packaging, and directing proteins to their destinations.
Explanation:The correct analogy for the functions of endoplasmic reticulum (ER) and the Golgi complex during protein processing is A) in the process of proteins, the ER acts as a highway system and the Golgi complex acts as a post office. These analogies are fitting because the ER synthesizes and transports the proteins similarly to a highway system ferrying goods, and the Golgi complex modifies, packages, and sorts them for delivery, like a post office.
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What elemental trend exists in each row as we move from left to right on the periodic table?
Number of protons decreases
Number of protons increases
Chemical reactivity of metals increases
Chemical reactivity of nonmetals decreases
The correct answer to your question is the second option.
The element trend that exists in each row when we move from left to right in the periodic table is going to be that the number of protons increases.
If you were to look at the periodic table and move from left to right in each row, you would notice that the atomic number of each element gets larger by 1 (keep in mind that the atomic number of an element is the same as the amount of protons that an element has, for example: Gold’s atomic number is 79, so it has 79 protons.)
I hope this helps you! :)
The question has no relation to the reactivity as per the condition discussed in the question. The correct answer is option b.
What is chemical reactivity ?It is defined as the ability of a compound in order to lose, gain or share electrons with the substance they are reacting to in order to form a new product.
As we move from left to right, the atomic number increases and with this trend the number of protons are increased as per the condition.
Metals are present in the first two groups where the first group is called as alkali metals and the second one is called as alkaline earth metals.
Atomic number of the element means it has same number of protons in it.
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Sarah no longer responds to fear or excitement. What part of the endocrine system is most likely being affected?
A - Adrenal gland
B - Parathyroid gland
C - Pituitary gland
D - Thyroid gland
The answer would be A: Adrenal gland i have took this test and it's correct.
Need help ranking the planets in order.
Which of the following affects the speed of light waves in a material?
Angle at which the ray strikes the medium
Color of the material
Density of the material
Temperature of the light wave
Unlike almost all ferns, seed plants ________.
Unlike almost all ferns, seed plants create two varieties of spores.
Explanation:In biology, a spore is a part of sexual or asexual replication that may be accommodated for dispersal and for endurance, oftentimes for long duration of time, in adverse situations. Spores develop component of the life periods of various plants, algae, mildew and protozoa. Bacterial spores are not component of a reproductive cycle but are repellent compositions used for endurance following adverse situations. Myxozoan spores loose amoebulae into their hostesses for parasitic virus, but also generate within the hostesses by the pairing of two nuclei inside the plasmodium, which originates from specific amoebula.
What portion of the central theory of gene expression occurs at the ribosomes
Create 10 medical terms related to cells and tissues break each word into word parts and Define each word part
A person who is interested in learning more about the "fight or flight" response may pursue a career in
A - endocrinology
B - gene therapy
C - microbiology
D - sports medicine
The answer would be (A): Endocrinology.
HELP Which situation would not encourage competition? Select one:
a. The amount of vegetation decreases due to a drought in a rabbit habitat.
b. A long, wet season results in additional earthworms in a robin habitat.
c. A long dry season results in a decrease in pond algae in a fish habitat.
d. A wet, rainy season results in flooded caverns foxes normally use as shelters.
Choose all the right awnsers.
each new cell produced by mitosis:
1) obtains new traits.
2) inherits all traits from its parent.
3) is identical to the parent's structure.
4) is different.
Answer:
B)inherits all the traits from its parent
C)is identical to the parent's structure
Explanation:
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"If people who suffer from night blindness take vitamin A for two months, then they will be cured of their night blindness."
Which term BEST describes this statement? Help me plz! ;)
A. Theory
B. Random guess
C. Conclusion
D. Hypothesis
can you record rides at six flags if its attached to your chest
A patient with a history of congenital disorders has developed purple spots on the skin. What condition is he probably suffering from?
Answer:
The patient is suffering from purpura disease which is a congenital disorder which is also called skin hemorrhages. In this disorder blood vessels near the skin bursts which appears as purple dots of diameter 4-10 mm on the skin.
This disorder may be present from birth and is mainly due to clotting disorder caused by a low number of platelets in the blood. In purpura, purple colored rash appears on any portion of the body which can be clearly seen.
Purpura can also be caused by taking wrong drugs that allow platelet destruction by immune cells or by some infections like hepatitis C, HIV, rubella. Therefore the correct answer is patient is suffering from purpura disease.
what do all members of a biological species have in common
Members of a biological species can sexually reproduce and have fertile offspring. They share a common gene pool and evolutionary history. Isolation and genetic divergence can cause species to diverge and adapt to different environments.
All members of a biological species have several key characteristics in common. They are capable of combining genetic information through sexual reproduction to produce offspring who can in turn also successfully reproduce. This reproductive compatibility creates a shared gene pool and ensures that members of the species are closely related in terms of their evolutionary history, meaning they descended from a common ancestor. For instance, all humans are members of the same biological species, evidenced by our ability to interbreed and the fact that our DNA is 99.9% identical across different races and cultures.
Isolation, whether physical or environmental, can lead populations to become separate species by causing reproductive isolation and subsequent genetic divergence, leading to the adaptive fit of each group to their local environmental conditions. The biological species concept is critical to classification in biology as it reflects the evolutionary relationships and patterns of ancestry among organisms. Moreover, it emphasizes the importance of successful reproduction within species classification.
Which of these is an environmental effect of burning fossil fuels and pesticeds from farming
The answer to the first one is "use of large amounts of water".
"increased air temperatures" is the answer to the farming one.
I did the test!
The initial period of population growth for a species in an environment is _______.
a.
linear
b.
exponential
c.
slow
d.
negative
Answer:
c. slow
Explanation:
When a species gets to a new environment, it takes its time getting used to the environment in a process otherwise known as acclimatization. During this process, the species mobilize resources and adjust its metabolism to suit its environment.
After the initial slow period as a result of adjusting to the new environment, what follows it is a period of exponential growth during which the species thrive and increase in population at a very high rate.
In conclusion, the initial growth rate is slow as a result of getting used to a new environment.
The correct option is c.
Digestion of food is a complex process that includes many feedback loops. In the simplified diagram of digestion that is shown in Figure 28.3, food enters the stomach, and a hormone called gastrin carries a message to a target. What happens first when the message reaches its target?
Digestion is a complex process, in which complex food substances are broken down into simpler forms.
Gastrin is a compound produced in the stomach during the digestion of food substances.
In the given feedback loop, the food when entering the digestion cycle, the gastrin will be secreted, causing the increase in the release of gastric juice. The acidic environment will activate the enzyme pepsin, which lowers the pH inhibiting the release of gastrin.
The gastrin inhibition will lead to an increase in the pH, and thus, the loop will be followed the same way for digesting the food.
Thus, the food when reaches the stomach it will cause the release of gastrin.
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Which layer of Earth has partially melted material that moves the tectonic plates?
[WILL MARK BRAINLIEST]
Theo made a list of items he saw.
Orchid, water, air, fan, grass, fish
Which statement is correct about the items on the list?
Fish, water, and air are created from nonliving matter.
The basic functional unit of water, air, and fan is the cell.
Orchid, grass, and fish are created from nonliving matter.
The basic functional unit of orchid, grass, and fish is the cell.
the basic functional unit of orchid grass and fish is the cell
Answer:
the basic functional unit of orchid grass and fish is the cell
Have a great day!
Help please. Need the correct answers
Sources of geothermal power are _____.
Geothermal energy, a renewable and nonpolluting source, is derived from Earth's internal heat generated by its molten core and radioactive decay. It is used to generate electricity, especially in geologically active areas like the Pacific Ring of Fire and accounts for a significant portion of renewable energy in countries like Iceland.
Explanation:Sources of Geothermal PowerGeothermal energy is a renewable, nonpolluting source of energy that can be harnessed from Earth's naturally occurring internal heat. This energy originates deep within the Earth, where the molten iron core and radioactive decay of elements like uranium produce continuous heat. At geological hotspots, often found along the Pacific Rim's "ring of fire," the Earth's subsurface temperatures are harnessed to produce steam. Groundwater percolates deep into the crust, gets heated by magma, and returns as steam, which can be tapped by wells and used to drive turbines, thereby generating electricity. Countries like Iceland utilize geothermal energy significantly, supplying around 30% of their electricity needs from geothermal sources. In locations like the United States, geothermal energy also contributes a significant portion to the renewable energy mix, with direct use and heating applications having minimal environmental impact.