1. An intermediate harvest intended to remove part of the trees to allow the remaining trees to get more sun is called clearcutting.
2. Prescribed burning
3. Clearcutting reduces biodiversity. Because clearcutting indiscriminately destroys entire areas, plant loss and destruction of animal habitat is unavoidable. Further environmental stress is put on many already endangered species that call the forest home.
4. Forests may be reproduced by either natural or artificial methods.
About ClearcuttingClearcutting is a term that refers to a felling that is used to clear a piece of land evenly without regard to the limit diameter of the trees to be cut down or without exception. The clear cutting system is used to clear a piece of land and after clear cutting, the forest area is planted with various types of trees that are the same age and uniform.
The goal of clear-cutting is to maximize land productivity and environmental quality in accordance with the carrying capacity of the local environment,and create long-lived forest of high quality to meet the needs of industrial raw materials.
Clear logging was chosen compared to the Selective logging system because it can prevent damage to young stands due to clear cutting of all trees, a method that is simple, cheap, and practical, can grow stands of uniform age, plants planted do not overlap with other tree characteristics, and can intercropping technique was carried out. Even so, clear-cutting has drawbacks, such as the occurrence of open ground resulting in minimal nutrients, soil erosion can occur, increased fire hazard, minimal aesthetic views, the goal of clear-cutting is to make the forest lifelong so that it is vulnerable to pests and diseases, and requires replanting of larger plants .
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What part of the brain is the "boss" of the autonomic nervous system (ANS)?
A) thalamus
B) pons
C) basal nuclei
D) hypothalamus
The "boss" of the autonomic nervous system is located in the hypothalamus of the brain (ANS).
What roles does the thalamus play?The thalamus is your body's central nervous system. Except for the sense of smell, the thalamus is in charge of processing all bodily sensory information before it is sent to the cerebral cortex in the brain for interpretation. The thalamus also plays a role in awareness, memory, learning, attention, and sleep.
How many nuclei does the thalamus contain?There are around 60 nuclei, or parts, in the thalamus. [1] Each nucleus contains unique pathways for input and a range of output projections, most of which connect to the cerebral cortex.
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Suggest two reasons why healthy volunteers are used in Phase 1 clinical trials
Answer:
Healthy volunteers in phase 1 clinical trials are used for the development of safe drugs and other biologics by accepting the possibility of risks from study participation without anticipated health benefits from the investigational products. The incidence of serious adverse events is low.
Why did Mendel carry out an experiment to study inheritance of two traits in garden pea?
Mendel conducted research on inheritance using peas. Peas were selected because they had previously been used in research that was comparable, because they are simple to cultivate, and because they can be replanted annually.
Pea flowers typically self-pollinate because they contain both male and female parts, which are referred to respectively as stamen and stigma. Because of the process of self-pollination, offspring can be produced from a single plant even though the flowers do not open until later. Peas can also be manually cross-pollinated.
To do this, simply open the pea flower buds, remove the pollen-producing stamen, and then apply pollen from one plant to the stigma of another plant. This will prevent the peas from pollinating themselves.
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If the population size of a predator increases, how will this affect the population size of its prey?
a) The prey population will not change in size.
b) The prey population will increases in size.
c) The prey population will change unpredictably.
d) The prey population will decreases in size.
If the population size of a predator increases the prey population will decreases in size.
What is Predator-Prey relationship?Predator-Prey relation refers to the interaction between two species where former is hunting the latter for food.
Example- Lion-Zebra, Bear-Salmon
Predator and Prey respond dynamically to one another. Higher the number of prey it will help to support the higher number of predators.
The key aspect of Predator- Prey relationship is the direct effect the predation has on numbers of their prey.
Predator- Prey relationship depends upon
- Detection of the prey
- Pursuit and capture of the prey
- Feeding
What is Population Dynamics?The fluctuation in the numbers of a predator species and its prey that occurs over time represent Population Dynamics.
As the prey population decreases due to predator killing, the food available is less and thus the number decline.
The process reverses when the population of predators increases putting population of prey at stake and once the population of prey decreases it eventually result into decrease in the population of the predators as their is not enough population of prey to thrive upon for predators.
Impact:
1. According to Evolution, the predator-prey relationship continues to be beneficial as both the species adapt to ensure they feed without becoming meal for another predator.
2. Maintenance of Biological Diversity of the particular ecosystem and helping to keep the ecosystem stable.
3. The balance of Predator- Prey can be disrupted due to climate change and changes such as drought, urban development, foresting and overuse of resources.
4. Predator- Prey population dynamics can be useful in indicating whether the population of a species could tax the capacity of a particular ecosystem to support their numbers.
5. The knowledge of Predator- Prey population can be used in determining the number of prevailing diseases.
Thus Predator-Prey relations plays vital role in maintaining ecosystem sustainable and balance and any shift in balance would result into disruption of the stability of the ecosystem.
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please label the diagram
The best way for a person to get all the essential nutrients and keep energy intake low is to:
A) limit consumption of foods from the grains group.
B) follow the principle of adequacy in dietary intake.
C) follow the principle of variety in dietary intake.
D) choose foods with a high nutrient density from each food group.
E) eat only natural,unprocessed foods.
The best way for a person to get all the essential nutrients and keep energy intake low is to choose foods with a high nutrient density from each food group and follow the principle of variety in dietary intake. So the correct option is d.
Nutrient density refers to the amount of essential vitamins and minerals that a food provides in relation to the number of calories it contains. Foods that are high in nutrient density, such as fruits, vegetables, lean proteins, and whole grains, are more nutrient-rich and energy-dense than foods that are high in calories but low in nutrients, such as processed foods and sweets.
Following the principle of variety in dietary intake means eating a variety of foods from different food groups to ensure that you get all the essential nutrients your body needs. Eating a variety of foods from the grains group, fruits, vegetables, dairy, proteins and healthy fats will provide the body with all the necessary nutrients.
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Gastric emptying is Question 3 options: affected greatly by the volume of fluid ingested. generally enhanced by fluids with a higher osmolality. adversely affected by fluids with less than an 8 percent concentration of carbohydrates.
Gastric emptying is affected greatly by the volume of fluid ingested. The correct option is Option A.
Gastric emptying is a test that helps to measure the time it takes the food to empty the stomach and small intestine. This test is often done to find out the reason for vomiting, having stomach pain or not gaining weight.Normally it takes 1.5 -2 hours for the food to move out of the stomach and into the small intestine.
But when the stomach takes longer than normal to empty it is called gastroparesis.
But a condition in which food , especially food with high sugar content , moves from the stomach into the small intestine too quickly after you eat, then this condition is called Dumping syndrome. It occurs mainly as a result of surgery on our stomach or esophagus.
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How can the photoelectric effect be explained based on the wave theory of light?
A.
When light waves hit a metal, the trough of a wave can kick out an electron.
B.
Light waves can pile up to exert pressure on an electron, eventually ejecting it.
C.
Through superposition, many light waves can impact an electron from different angles.
D.
The photoelectric effect cannot be explained by the wave theory of light.
8. What happens to the sister chromatids in meiosis II?
A. They duplicate.
B. They are divided.
C. They do not take part.
D. They remain together.
Answer:
I think B. They are divided.
Rearrange these words and symbols to make the word equation for respiration
water oxygen glucose carbon dioxide + + -->
Answer:
glucose + oxygen --> carbon dioxide + water
Explanation:
The correct equation is:
Glucose + Oxygen -> Carbon dioxide + Water + Energy.
Cellular respiration is a process in which different chemical reactions allow the degradation of organic compounds (glucose) to convert them into energy (inorganic substances) for cells.
The process is shown bellow.
Reactants:
Glucose: C6H12O6Oxygen: O2Products
Carbon dioxide: CO2Water: H2OEnergy: ATP.This means glucose and oxygen react to become other components such as carbon dioxide, water and ATP. According to the above, the equation for cell respiration is:
Glucose + Oxygen -> Carbon dioxide + Water + Energy.
or
C6H12O6 + O2 --> CO2 + H2O + ATP
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You roll two number cubes.
Let event A = You roll an even number on the first cube.
Let event B = You roll a 2 on the second cube.
Are the events independent or dependent? Why?
A. Independent, because the outcome of the first roll doesn't affect
the outcome of the second roll.
B. Dependent, because both cubes have six sides.
C. Independent, because they have no outcomes in common.
D. Dependent, because 2 is an even number.
INNIT
Answer:
A. Independent, because the outcome of the first roll doesn't affect the outcome of the second roll.
Answer:
A
Explanation:
A
Do whales breathe oxygen or carbon dioxide?
Whales are mammals, not fish. This means that, like all land mammals, they breathe oxygen through their lungs.
Whales and dolphins are mammals, and like us, they breathe air into their lungs. Because they do not have gills, they cannot breathe underwater like fish. Whales are mammals just like humans. Therefore, they have lungs and breathing air on their surface. It cannot extract oxygen from water like fish do with their gills. Whale inhalation is "conscious". The respiratory function of these animals is under the voluntary control of the central nervous system "CNS".
Whales accumulate carbon in their bodies during their long lifespans. When they die, they sink to the bottom of the ocean. Each large whale binds an average of 33 tons of carbon dioxide and removes this carbon from the atmosphere over centuries. Trees, on the other hand, only absorb up to 48 pounds of CO2 per year
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In New York State, the risk of sunburn is greatest between 11 a.m. and 3 p.m. on summer days because
A the air temperature is hot
B) the angle of insolation (incoming solar radiation) is high
earths surface reflects most of the sunlight
the sun is closest to earth
Answer: B) the angle of insolation is high
Explanation:
During that time the Earth is facing the sun at a closer angle. So the chances of incoming solar radiation will be higher.
In New York State, the risk of sunburn is greatest between 11 a.m. and 3 p.m. on summer days because the angle of insolation (incoming solar radiation) is high. The correct answer is option B.
What is the duration of sunlight reaching the Earth ?The duration of sunlight reaching the Earth is approximately 9 seconds.
Angle of insolation is defined at the angle at which the sun's rays strike a particular surface on Earth in order to receive the sun rays and get the heat out from the sun.
At the angle of 90 degrees it is directly receiving the light from sun at equator and the solar radiations are all gathered at one particular surface thus making the surface a little hot.
The sun strikes at 23 approximately at the tropic of cancer thus this will receive the maximum of heat from sun.
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in general how is the number of offspring produced by an animal related to the amount of time and energy it invests in caring for its young
Answer: The amount of time parents spend raising their children decreases with increasing fecundity
Explanation:
Fecundity is the capacity to have children. It may also be used to characterize an organism's rate of reproduction. The level of parental care provided is frequently correlated with the number of offspring produced. Generally speaking, the amount of time parents spend raising their children decreases with increasing fecundity. Animals can only use a finite amount of energy for reproduction.
Plzzz help How does the Lampsilis Mussel complete its life cycle?
Answer:
It completes it's life cycle at the adult stage, where it releases glochida which attaches to the gills of fish
Explanation:
Mussels start out as glochida, metamorphosizing into juveniles, to grow into adult mussels. Males release sperm, taken in by females for thier eggs, and the eggs become glochida.
Smallpox viruses can replicate only inside a human cell. Human influenza viruses can replicate in human cells and in the cells of pigs and some other animals. How might this difference influence the success of vaccination programs?
Please Help Me Outttt
The function of a specific enzyme is most directly influenced by its 'physical shape'.
What do you mean by enzymes?
Enzymes are basically proteins that act as catalysts, speeding up chemical reactions in the body. They are essential for life and are involved in many of the body's processes, such as digestion, metabolism, and energy production.
The physical shape of an enzyme is determined by its specific sequence of amino acids, which forms its active site. This active site is the part of the enzyme that binds to substrates and facilitates chemical reactions. The physical shape of an enzyme determines what substrates it can recognize and bind to, which in turn influences the rate at which the reaction occurs. Therefore, the physical shape of an enzyme directly affects its function.
Hence, Option B is correct.
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Using the theory of natural selection, what is antibiotic resistance
Answer:
Antibiotic resistance is when pathogens such as bacteria or fungi develop a resistance to antibiotics. This happens when some pathogens die, and others survive. The small number of pathogens that had a resistance to the antibiotic will reproduce more offspring that are also resistant to, and those offspring will reproduce even more offspring and so on. Eventually most pathogens will be resistant to the antibiotic, so antibiotics won't work.
whats the other name of thorne apple an if its poisonous
Explanation:
Thorn apple, also called gypsum weed and moonflower, is a poisonous plant belonging to the nightshade family. Ingesting thorn apple fruit may induce delirium and possibly death. The "sacred Datura" is a toxic plant native to northern Mexico and the southwestern United States.
Which level contains organisms that carry out autotrophic nutrition
Answer:
Level A, though some people call it different things.
Explanation:
The answer will be the lowest number/letter, as they are at the bottom of the food chain.
Explain how better irrigation systems can conserve two important resources
Pls help ASAP!!
Answer:
Better Irrigation can help preserve both energy and water, given the fact that if irrigation precision with respect to the amount of water a plant needs, is timed perfectly each day, as well as unutilizing uneeded areas of irrigation, can help save a tremendous amount of both water and energy. With both power and water usage per plant being on the T, this not only perfects the way of cultivating plants, but also makes it as enviromentally friendly and cost-efficient as possible.
Why is it hard to find animals in tropical areas?
Answer:
Tropical areas are warm and wet causing for animals to want to hide essentially. Also there is a lot of cover for animals to hide in. Usually in tropical areas there are a lot of predators also, another reason for animals to hide.
its kinda easy I just hate it<3
1. Water
2. Oxygen and Hydrogen
3. Oxygen and Hydrogen
4. Yes
5. Yes
6. 4
7. 2
8. 4
9. 2
10. No
11. Chemical change
Is Colin's evidence relevant to his claim?
No, Colin's evidence is not relevant to his claim.
Since drone flying is a sport rather than a concern for privacy, Colin's evidence does not support his allegation. Colin gives evidence that is connected to the idea that flying drones is a sport by noting that coordination and technical abilities are required to fly drones. Instead of focusing on giving evidence that supports the idea that drones do not negatively affect people's privacy, Colin offers evidence that is related to the idea that flying drones is a sport. It follows that his argument is weak because it has not been adequately substantiated.
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Explain why the sickle-cell gene does not benefit anyone in the United States, but it may be very advantageous to someone living in rural Zambia, Africa.
The sickle-cell gene does not benefit anyone in the United States, but it may be very advantageous to someone living in rural Zambia, Africa because Malaria is rare in the United States
Sickle cell disease: A group of disorders in which
red blood cells deform and collapse. In sickle cell disease, a group of inherited disorders, red blood cells twist and sickle. Cells die prematurely, lacking healthy red blood cells (sickle cell anemia) and can block blood flow and cause pain (sickle cell disease).
In parts of Africa where malaria is common, the sickle cell disease mutation confers a health benefit to carriers (protection from malaria). HbS carriers were naturally selected in these regions because their traits confer some resistance to malaria. Red blood cells with abnormal hemoglobin tend to sickle when infected with the malaria parasite.
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Which of the following does not make up the structure of an ATP molecule?
adenine
glucose
phosphate
ribose
A plant is an example of a heterotroph.
True
False
Photosynthesis is an anabolic process.
True
False
The number of phosphates in an ATP molecule:
2
4
3
1
Cell respiration occurs in
plants only.
heterotrophs only.
animals only.
all eukaryotes.
n autotroph is an organism which makes it's own food.
True
False
Photosynthesis is to chloroplasts as cell respiration is to
golgi body
glucose
mitochondria
cytoplasm
Which process does not release energy?
photosynthesis
lactic acid fermentation
alcoholic fermentation
cell respiration
Photosynthesis releases energy that is immediately usable by the cell to do work.
True
False
The liquid inside of a chloroplast that surrounds the grana is the
thylakoid
outer membrane
stroma
matrix
Most chlorophyll is found in the green colored organelles called the mitochondria.
True
False
Chlorophyll is an accessory pigment in plants.
True
False
Plants gather the sun's energy with light-absorbing molecules called
ATP
NADH
pigments
carbon dioxide
Consider the equation for photosynthesis. Carbon dioxide is a reactant. Oxygen is a
reactant.
energy source.
product.
toxin.
As you increase the temperature, the rate of photosynthesis increases and then decreases.
True
False
Many thylakoids make up a grana.
True
False
Identify the correct equation for photosynthesis:
6O2 + C6H12O6 → 6CO2 + 6H2O + Energy
6O2 + C6H12O6 + Energy → 6CO2 + 6H2O
6CO2 + 6H2O + Energy →6O2 + C6H12O6
6CO2 + 6H2O →6O2 + C6H12O6 + Energy
Which color of the visible spectrum is not absorbed by chlorophylls a and b?
red
green
blue
You are growing a plant in space and remove carbon dioxide from it's growth chamber. What do you expect to happen to the plant?
the plant will not be able to make sugar
the same amount of sugar will be produced
a different type of sugar will be produced
more sugar will be produced
Cell respiration begins with one molecule of glucose and produces
2 pyruvate
2 ATP
36 ATP
2 ATP and Lactic Acid
What is a possible effect of leakage of inner ear fluid?
Answer:
Sensitive hearing, Dizziness, Intolerance to motion. Rarely, patients who have perilymph fistula can develop sudden hearing loss or vertigo.
Explanation:
Which statement does not accurately describe what occurs during the process of meiosis?
A) Meiosis produces four identical gametes, either egg or sperm.
B) Genetic variation among sexually reproducing organisms is enhanced by meiosis.
C) Meiosis produces gametes with the haploid chromosome number.
D) All stages of meiosis follow DNA replication
Answer:
D cause not all stages of meiosis follow DNA replication.
4. The carbon-containing molecule found in the atmosphere that is often released by
tion is
Answer:
Oxygen is needed during the respiration process, which is how organisms turn food into chemical energy.
Carbon dioxide is a carbon-containing chemical that is present in the atmosphere and is frequently emitted during respiration. Blood oxygen is exchanged for carbon dioxide from bodily cells.
Explanation:
Answer:
burning of substance like fuel, wooden material etc
What are the 3 types of point mutations and their effects?
The three types of point mutations are: addition, deletion and substitution. The effect of these mutations is that the gene sequence is altered that results in variation in gene expression.
Point mutations are the type of mutations where the change in the genetic sequence is due to alteration of a single nucleotide. This change can be the addition, deletion or substitution of the nucleotide. This can however change the entire sequence for the gene expression.
Gene expression is defined as the process by which the genetic information is converted into a functional form that can produce the results inside the body. These processes are transcription and translation.
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