Photosynthesis relies predominantly on light in the visible and near-infrared region of the electromagnetic spectrum. this light is capable of
What does a hawk derive energy from
Enzymes serve as ____.
a. genetic templates
b. biological catalysts that regulate chemical reactions in the body
c. catalysts for the synthesis of protein molecules
d. physiological markers of chemical reactions in the body
Enzymes essentially act as biological catalysts within the body. They accelerate the chemical reactions taking place in cells, aiding in digestion, metabolism, and more.
Explanation:Enzymes serve as biological catalysts that regulate chemical reactions in the body. Enzymes significantly speed up the rate of virtually all the chemical reactions that take place within cells. They are instrumental in processes like digestion and metabolism and are crucial for human life. While they also participate in the synthesis of proteins, their roles expand beyond that specific function, making option b the correct choice.
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Which two organelles are responsible for providing the plant cell with energy?
A relationship in which one organisms benefits while the other is not harmed but doesn’t not benefit either is called
A) predation
B) parasitism
C) commensalism
D) mutualism
What two recurring events in Earth’s history have an impact on the carbon cycle?
The carbon cycle, vital for life on Earth, is significantly impacted by the burning of fossil fuels and human animal farming practices. These human activities contribute to high levels of CO2 in the atmosphere, disrupting the carbon balance and leading to climate change.
Explanation:Two recurring events in the Earth's history significantly impact the carbon cycle, which comprises two interconnected sub-cycles dealing with the rapid carbon exchange among living organisms and the long-term cycling of carbon through geologic processes.
Firstly, the burning of fossil fuels, accelerated since the 1800s with the onset of the Industrial Revolution, has caused a substantial increase in atmospheric CO2 levels. The combustion of these fuels—derived from ancient plant remains, hence an enormous stockpile of carbon—emits carbon dioxide into the atmosphere thus disrupting the carbon equilibrium.
Secondly, animal husbandry and farming practices contributed by humans have indirectly affected carbon levels. Raising large numbers of animals generates significant amounts of CO2 and methane, another potent greenhouse gas. Both these human-induced processes have been linked to climate change and pose a serious global environmental concern.
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The secondary form of inheritance via epigenetics is sometimes referred to as ______ inheritance.
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Sully works as a geologist in the southwestern United States. He plans to choose an unstable isotope to find the absolute age of a rock sample. Which two aspects must he consider before making his choice? (MORE THAN 1)
1. There should be a sufficient amount of the selected isotope in the rock.
2. The isotope should be one that decays at a very fast rate.
3. The isotope must not be found in any neighboring rocks.
4. The half-life of the isotope must be long enough to capture the age of the rock.
5. There should be more than one unstable isotope in the rock.
The correct answers are
1. There should be a sufficient amount of the selected isotope in the rock.
4. The half-life of the isotope must be long enough to capture the age of the rock.
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A sedimentary rock containing a fossilized sea shell had been found. What does this tell you about the area at the time the rock was formed?
A. The area was under water.
B. The area was cold.
C. The area was muddy and wet.
D. The area was hot and tropical.
The answer is a because the text says that ist was fossiized and this most likely means it was in an area with water.
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As the sedimentary rock containing a fossilized sea shell had been found it means the area was under water. The correct option is A.
What is sedimentary rock?Sedimentary rocks form from pre-existing rock deposits or fragments of once-living organisms that accumulate on the Earth's surface.
When sediment is deeply buried, it becomes compacted and cemented, resulting in sedimentary rock.
Chemical sedimentary rocks can be found in a variety of environments, including the ocean, deserts, and caves.
Most Likely Locations Sedimentary rocks are most commonly found near water sources, which is where a lot of erosion occurs.
Different types can be found in riverbeds, ponds, and coasts, as well as throughout the oceans.
The discovery of a sedimentary rock containing a fossilized sea shell indicates that the area was once under water.
Thus, the correct option is A.
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What cellular organelle helps maintain cell shape and plays an important role in cell division?
The centrosome, housing centrioles, plays a key role in cell division and helps to keep the cell shape. It is the origin of microtubules that aid in chromosome separation during cell division and maintain cell shape by securing organelles and facilitating cytoplasm movement.
Explanation:The cellular organelle that helps maintain cell shape and plays a critical role in cell division is the centrosome. The centrosome, which houses centrioles, is the origin of all microtubules in the cell. These microtubules form a sort of 'railroad track' system that aids in the separation of chromosomes during cell division.
The centrosome duplicates itself before a cell divides, and the centrioles help to pull the duplicated chromosomes to opposite ends of the cell. However, it's not entirely clear how crucial the centrioles are to this process, as cells can still divide after having the centrosomes removed and plant cells, which lack centrosomes, still manage to divide.
Aside from this, microtubules, which emanate from the centrosome, help maintain the cell's shape. They secure organelles in specific positions and allow for the movement of cytoplasm and vesicles within the cell. These functions are vital for maintaining cell integrity and facilitating various cell activities.
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The wind is helpful to prairie grasses because it helps them _____.
start grass fires
carry away dead grass
spread their seeds
keep their leaves dry
Answer: spread their seeds
Prairies are the ecosystems which are considered as a part of the temperate grasslands, shrublands and savannas biome. These biomes are dominated by grasses as vegetation. Wind is a type of pollinating and seed dispersal agent of plants. A wide variety of prairie grasses such as little bluestem, wheat grass, indiana grass, sand love grass use wind as an agent to disperse their seeds.
Which of the following BEST distinguishes the relationship between war and agriculture?
A. War is hard on the agriculture industry because many farmers are drafted into the military, decreasing food production.
B. War takes a severe toll on agriculture because some land becomes unsafe for growing crops, and remaining farms often overproduce and cause depletion.
C. War often causes farmers to look to new technology to help yield enough food to feed an entire country as well as the country’s troops overseas.
D. War is a very profitable time for the agriculture industry, and farmers are able to provide massive amounts of food with little damage to the environment.
Answer:
C.
Explanation:
War often causes farmers to look to new technology to help yield enough food to feed an entire contry as well as the countrýs troops overseas.
War is one of the events where technology avances faster. More food is needed at a faster rate to produce, so technolgy should make this possible
An increase in ___ in the blood and a resulting drop in ph
The nurse is caring for a client with giardia lamblia and anticipates that the provider will order what drug for the treatment of this client's diarrhea?
The joining point of two bones fused together is called a suture.
TRUE or FALSE
A fair, fat, forty-three-year-old woman had been having episodes of griping abdominal pain after fatty meals. one day she ate french onion soup with lots of cheese and suffered severe enough pain that she called in sick. her supervisor pointed out that she always gets sick after fatty foods. she went to the clinic and the nurse in triage took her vitals and history. the nurse noticed that the whites of her eyes were yellow and that she had tenderness on the right side of her abdomen. blood pressure and heart rate were normal. based on this initial assessment, what organs do you think might be involved in this woman's illness, and why? choose the two most likely organs involved in her illness.
What is a galaxy? How many galaxies are there and how many stars does each galaxy hold?
The majority of photosynthesis performed on the planet is done by
During which period of geologic time was the sediment of the pennington formation formed.
The Pennington Formation sediments were formed during the Late Triassic to Early Jurassic periods as part of the geological changes associated with the breakup of Pangea. The age of these sediments is determined through fossil evaluation and radiometric dating techniques.
The sediment of the Pennington Formation was likely formed during the Late Triassic to Early Jurassic periods, based on the geological context provided. As Pangea began to break apart approximately 200 million years ago, geological activity such as rifting and the formation of basins, like the Newark Basin in New Jersey, were prevalent. These basins were filled with sediments that later lithified into various sedimentary rocks. The sedimentary rocks of the Pennington Formation, therefore, were part of these episodes and could be connected to these geologic events.
Determining the age of rocks like those in the Pennington Formation often involves relative dating methods such as examining fossil assemblages and using stratigraphic principles. Absolute dating can also be applied through radiometric dating methods to better understand the timing of events like the deposition of sediments and the climatic conditions prevailing during the period of sediment deposit.
During the winter months water on the surface of a pond will typically freeze and this ice acts as an insulator for the water but need that as a result aquatic life is able to survive during the cold winter. The reason that this water expands upon freezing is due to:
A. the hydrogen bonding that creates its hexagonal shape
B. Water molecules being soluble in any polar solvent
C. It really high heat of vaporization
D. Low molecular mass
When water freezes, the hydrogen bonding that creates its hexagonal shape causes the water molecules to expand out and take up more volume. As a result, its less dense than liquid water and it floats.
Suppose a mutation results in a protein hormone's receptor lacking a binding domain. what is the likely effect of this mutation on the target cell
Which of these materials or structures would be found in greatest amounts or numbers at e?
The sides of a composite-cone volcano have which feature?
Yes, the correct answer is Fumaroles!!
Which part of the nervous system is the first to work when Joshue feels a raindrop fall on his arm?
Answer:
Sensory neuron
Explanation:
Through the sensory neurons the individual captures stimuli and information from the surrounding environment and from his own body. The stimuli are transmitted as electrical impulses to the central nervous system. In turn, the central nervous system processes information, translating it into sensations and generating responses. This is how we see what is around us, feel when someone pinches us, perceive raindrops falling on our arm, taste the food, among many other sensations.
What type of acid base imbalance is likely to develop if the stomach contents are repeatedly lost by vomiting over?
which area would be most likely to experience a wildfire:a wet area with many lightning strikes,a dry area with few lightning strikes , or a dry area with many lightning strikes ?
A confrontation usually takes the form of a(n):
/green sea turtles eat sea grass that grows on the sea floor. sea grass, a foundation species, provides an important breeding ground for fish and other marine organisms. a conservation program for the green sea turtles plans to introduce more turtles into an ecosystem. what could be the immediate effect of this on the ecosystem
Answer:
D) There would be a decrease in the population of marine organisms.
Explanation:
Populations are effected not only because of predation but also due to habitat loss caused by the introduction of a new species into the ecosystem. If more sea turtles are added into the region they would deplete the sea grass, causing a decrease in the population of marine organisms due to the loss of breeding grounds and food source.
What piece of lab equipment should be used when transferring a test tube from the rack into a beaker of hot water? Buret Clamp A Forcep
Answer: Clamp
Explanation:
A test tube clamp or test tube holder is a instrument typically used in chemical and biology laboratories. It is used for holding the test tube while conducting the experiment. It is a safety precaution measure to use the test tube clamp to prevent accidentally injuries like burns. The test tubes may be hot or cool cannot be held by hands hence, the use of test tube clamp is suggested. It helps in holding the test tube while conducting the experiment like mixing of chemicals, heating and keeping in refrigerator.
On the basis of above description, a clamp can be useful piece used as a lab equipment that can be used to transfer the test tube from the rack into the beaker of hot water.
Particles may diffuse through all of the following except _______ ?
A. Gasses
B. Liquids
C.Solides
D. Water