Living things are made of six primary elements abbreviated chnops. what are these elements?
Some organisms undergo asexual reproduction through mitosis, while others reproduce sexually, and their cells undergo meiosis to produce gametes. If there were drastic changes in temperature in an ecosystem, which process do you predict would be most beneficial to a species?
Answer:
Meiosis
Explanation:
Mitosis results in daughter cells with the same genetic component as the parent. Hence, a drastic change in the environment may wipe out the entire population of organisms that only reproduce by mitosis.
Meiosis results in daughter cells whose genetic components are different from one another and that of their parents. Crossing over and recombination ensures that meiosis increases the genetic variability of a population.
Hence, difference in genetic composition of organisms in a population might help in the survival of some members of the population in case of adverse environmental changes.
All the internal structures are suspended (floating) in what substance
Why is it important for plants and animals to adapt to their environment?
The development period when the brain experiences the most growth and maturity is the:
Jon is campaigning for the introduction of buffer zones around the large commercial farms in his community to manage the effects of chemical fertilizers. What will a buffer zone do?
a) allow the fertilizer to evaporate
b) dilute the fertilizer
c) deactivate the fertilizer
d) protect surface waters from fertilizer runoff
e) destroy the fertilizer
A buffer zone around large commercial farms is intended to protect surface waters from the harmful effects of fertilizer runoff by intercepting pollutants before they reach water bodies and contribute to eutrophication and 'dead zones'.
Explanation:Jon is campaigning for the introduction of buffer zones around the large commercial farms in his community to manage the effects of chemical fertilizers. A buffer zone will most effectively protect surface waters from fertilizer runoff. Buffer zones are areas of land maintained in permanent vegetation located between cultivated fields and water bodies, designed to intercept pollutants, soil, and agricultural runoff, containing nitrogen and phosphorus, before they enter water systems. Without such zones, excessive nutrient loads from fertilizer runoff can lead to the eutrophication of water bodies, resulting in an overgrowth of algae that can create 'dead zones' by depleting dissolved oxygen and harming aquatic life. The correct answer to the question is (d) protect surface waters from fertilizer runoff.
A buffer zone around large commercial farms can help manage the effects of chemical fertilizers by d) protecting surface waters from fertilizer runoff. When fertilizer is applied to farmland, it can be carried away by rainwater or irrigation and enter nearby bodies of water, causing eutrophication and dead zones. A buffer zone acts as a barrier, absorbing and filtering nutrients from the runoff before they reach surface waters.
earth has an _______ of about 30 percent, reflecting much of the suns radiation back into space. apex
The correct answer for fill in the blanks is Albedo
The term albedo defines the proportion of radiation or incident ray that is reflected back by the surface. Earth has an albedo of about 30% reflecting back into the space. The rest 70% is absorbed by the earth. The values for albedo is changing as compared to last ice age. It is due the effect of human activities such as global warming, deforestation, pollution, etc.
In the desert white rabbits are more easily seen by predators than brown rabbits. The difference in color causes white rabbits to be eaten by predators more often than their brown counterparts. This causes white rabbits to have a lower population because they do not survive to reproduce as often as brown rabbits. This scenario is an example of _____________.
a.
variation in traits
c.
genetic drift
b.
heredity
d.
differential reproduction
Final answer:
The correct answer is option d. differential reproduction. The scenario where white rabbits are more visible to predators and thus have a lower survival rate compared to brown rabbits is an example of differential reproduction, a key mechanism of evolution. Genetic drift and diversifying selection are other concepts relevant to changes in population genetics but are distinct from the selective pressure leading to differential reproduction.
Explanation:
The scenario described in the question, where white rabbits are more easily seen by predators than brown rabbits, leading to white rabbits having a lower survival rate and a lower chance to reproduce, is an example of differential reproduction. Differential reproduction is a key mechanism of evolution, where individuals with traits that are better suited to their environment tend to survive and reproduce more than those with less favorable traits. As a result, the traits that enhance survival and reproduction become more common in the population over time.
Genetic drift can also play a role in changing allele frequencies in a population, but it is a random process that is not directly related to a trait's influence on an organism's ability to survive and reproduce. Genetic drift can occur due to random sampling effects, such as when a few individuals colonize a new area (founder effect) or when a population size is drastically reduced (bottleneck effect), leading to a random shift in allele frequencies.
For bacteria to continue growing rapidly when they shift from an aerobic environment to an anaerobic environment, they must
A victim with a foreign-body airway obstruction becomes unresponsive. what is your first course of action
When a victim with a foreign-body airway obstruction becomes unresponsive, begin CPR starting with chest compressions and then call emergency services.
Explanation:In the case where a victim with a foreign-body airway obstruction becomes unresponsive, the first course of action that should be taken is to initiate the Cardiopulmonary Resuscitation (CPR) process, starting with chest compressions. The chest compressions can help to remove the obstruction and also start the circulation of blood that could have been discontinued as a result of the obstruction. Follow the standard process for CPR: Compressions, Airway, Breathing (CAB). This should be followed by calling emergency services immediately.
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Mercury is an element that is toxic to humans in high doses. How can humans reduce their risk of ingesting this element in harmful amounts?
A.) Humans could avoid eating animals at high trophic levels, as their bodies contain more mercury than those at lower trophic levels.
B.) Humans could avoid eating herbivores, such as plant-eating fish, as their bodies contain relatively high amounts of mercury compared with other animals.
C.) Humans could avoid eating animals at all trophic levels, which all have equal risk of containing mercury, while consuming only plants.
D.) Humans could avoid eating plants, as these contain especially high levels of mercury.
Answer: B.) Humans could avoid eating herbivores, such as plant-eating fish, as their bodies contain relatively high amounts of mercury compared with other animals.
Explanation:
The mercury is a metallic poison which is used in chemicals production in the industries. The mercury along with other residues are left in the water bodies where this is consumed by the aquatic animals like herbivorous fishes. These fishes are consumed by human beings they become susceptible to the toxic effects of the mercury. A disease called as minamata is associated with the mercury consumption. It is associated with muscle weakness, numbness, hearing and speech damage.
What organelle is composed of a membrane with pores?
The organelles that are the protein factories for the cell are the:
In a cell, all organelles work together to carry out
Is glacial ice part of the geosphere, or does it belong to the hydrosphere?
Answer:
Hydrosphere
Explanation:
All the glacial ice present on earth belongs to the hydrosphere. Hydrosphere represents all the water bodies (ice, vapor, and liquid) existing on earth.
Glaciers are the region where the temperature is low and continuous accumulation of snow takes place in consecutive years. In due course of time, these accumulated snow undergoes compaction as a result of which it subsequently forms ice.
The factors that are responsible for the formation of snow re s follows-
1) Areas of high latitude
2) Low temperature
3) Presence of abundant snow
4) Snow accumulation must be more.
The part of the neuron that receives messages from other neurons is called the
The dendrites are the structures on a neuron that receive messages from other neurons.
Explanation:The part of the neuron that receives messages from other neurons is called the dendrite. Dendrites are tree-like structures extending away from the neuron's cell body. Their primary function is to receive electrical signals at specialized junctions known as synapses, where contact is made with the axon terminals of other neurons. With their branched form, dendrites increase the surface area for receiving these signals, sometimes connecting a single neuron to thousands of others, facilitating complex neural communication.
how fast does sperm regenerate?
A patient is prescribed an opioid analgesic for chronic pain. which information should the nurse discuss with the patient to minimize the gi adverse effects
Water would be an example of __________, whereas the water cycle would be an example of __________
Water is a flow resource integral to life and a natural resource; the water cycle represents an ecosystem service that cycles water through the environment, supporting various services essential for human well-being and environmental health.
Water is a flow resource that is vital to all forms of life and is categorized as a natural resource. The water cycle, also known as the hydrologic cycle, is a crucial ecosystem service that describes the continuous distribution and movement of water in various forms throughout our planet. This cycle includes the evaporation of water, its transport across the atmosphere, and precipitation back to the earth's surface. The water cycle is driven by solar energy, ensuring the constant movement of water as long as the sun shines.
This natural process not only provides freshwater resources but is integral to other ecosystem services such as climate regulation, nutrient cycling, and flood control. Ecosystem services like the water cycle contribute directly and indirectly to human well-being by providing essential resources like fresh water and by maintaining the health of the ecosystems we rely on for food, fuel, and recreation.
It's essential to understand the interplay between abiotic factors, such as the atmosphere and water bodies, and biotic components, including plants and animals, in maintaining the balance and sustainability of these natural cycles. The soil productivity, which depends on the availability of water among other factors, showcases how these ecosystem services are of immense importance to agricultural production and to the overall health of our natural environment.
Therefore, Water would be an example of a resource, whereas the water cycle would be an example of an ecosystem service.
To help you steady a rifle when you're ready to shoot draw a deep breath and
Name four macromolecules present in all living things and identify what they have in common.
How do you write an expression for "the product of 11 and w."?
Depending on how it is being used, a resource may be described as renewable, nonrenewable, or somewhere in between. How would scientists best describe the Alaskan King crab if a fishery is currently removing crabs from the ocean faster than they can reproduce?
A.) Hypo-renewable
B.) Potentially renewable
C.) Quasi-renewable
D.) Renewable with adjustment
Scientists describe the Alaskan King crab if a fishery is currently removing crabs from the ocean faster than they can reproduce as potentially renewable. Therefore, the correct statement is option B.
What are renewable resources?Renewable resources are resources which can be replenished naturally over time, such as solar or wind energy, while nonrenewable resources are those that cannot be replaced once they are used up, such as oil or coal.
If a fishery is removing Alaskan King crabs from the ocean at a rate faster than they can reproduce, there are high chances that the population can be depleted faster and cannot be naturally replenish itself. The population of Alaskan King crabs will not be able to recover if this situation continues and will be considered nonrenewable after a certain point.
However, certain measures should be taken for regulating the fishing industry. This will be the only way to ensure that the population has time to recover, and the Alaskan King crab population can potentially renewable itself to support sustainable harvesting practices.
Alaskan King crab can be described as potentially renewable, if measures are taken to regulate the fishing industry and management practices are implemented to ensure sustainable harvesting as the crab population has the potential to recover itself.
Therefore, if a fishery is currently removing crabs from the ocean faster than the Alaskan King crab can reproduce, the population will be considered as potentially renewable.
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Which of the following describes how binary fission and mitosis are similar?
A)They are both used for growth or repair.
B)They both break down membrane-bound nuclei.
C) Both involve the replication of a single strand of DNA.
D) Both replicate genetic material.
The correct answer is A.
hope this helps :D
Answer:
The correct answer is D. Both replicate genetic material
Explanation:
Mitosis is the process when an animal cell, plant cell, et cetera divides into two (or replicates itself).
Binary fission is the process when a bacteria splits off into two, which is a simple process since bacteria don't have a nucleus.
They both replicate genetic material when dividing or splitting into two,
so the correct answer is D. Both replicate genetic material.
Hope this helps!
Which respiratory measurement is useful in differentiating between obstructive and restrictive pulmonary dysfunction?
The respiratory measurement that is useful in identifying the difference of obstructive and restrictive pulmonary dysfunction is that a person with restrictive lung disease is indicative of having to have trouble of expanding the lungs while the obstructive lung disease has trouble of having to exhale air from the lungs.
Which of the following changes will result in a decrease in salinity?
increased dissolved gases
ice caps melting
evaporation
what is the difference between conduction and convection?
How does alcohol affect academic performance? select all that apply?
Starch and cellulose _____. are structural components of the plant cell wall are used for energy storage in plants are cis-trans isomers of each other are polymers of glucose
Final answer:
The correct option is: are polymers of glucose. Starch is used for energy storage in plants, while cellulose is a structural component of the plant cell wall, both are polymers of glucose but with distinct structures and functions, and are not cis-trans isomers.
Explanation:
Starch and cellulose are both polymers of glucose. However, their functions and structures are distinct. Starch is primarily used for energy storage in plants and consists of two types of glucose polymers: linear amylose and branched amylopectin. In contrast, cellulose functions as a structural component of the plant cell wall and is a linear polymer with glucose units linked by ß-1,4-glycosidic bonds. They are not cis-trans isomers of each other since starch and cellulose have different glycosidic linkage orientations.
Yellow bananas are called triploid organisms. Why do you think this is?
yea...what the other guy said lol