The stage in which an ecosystem rapidly gains biomass through the introduction of plants with woody stems is called?
The answer is Aggregation.
During plant succession new community gets established at an area which had been uninhabited. The community which gets established at the site is called climax community. The aggregation is the stage during which there is increase in population of the species which has become established in the area. The shrubs replace the small herbs. This adds up biomass by introduction of more plants with woody stem. This also proves as a source of food for future inhabitants.
Which of the below organisms does NOT have a cell wall as part of their structure?
A.Oak Tree
B.Salmonella Bacteria
C.Seaweed
D.Turtle
A medical researcher is studying the spread of a virus in a population of 1000 laboratory mice. during any week, there is a 70% probability that an infected mouse will overcome the virus, and during the same week there is a 40% probability that a noninfected mouse will become infected. two hundred mice are currently infected with the virus. how many will be infected next week and in 3 weeks? (round your answers to the nearest whole number.)
Calculate the number of mice infected with the virus next week and in 3 weeks based on given probabilities and the initial infected count.
The number of infected mice next week:
Initially infected mice = 200
Number of mice overcoming the virus = 0.7 * 200 = 140
Number of mice getting infected = 0.4 * (1000 - 200) = 320
Number of infected mice next week = 140 + 320 = 460
The number of infected mice in 3 weeks:
Number of mice next week = 460
Number of mice overcoming the virus = 0.7 * 460 = 322
Number of mice getting infected = 0.4 * (1000 - 460) = 216
Number of infected mice in 3 weeks = 322 + 216 = 538
The third body, the apollo spacecraft, is assumed to have
Meteorologists draw lines called ______ on weather maps to connect locations with the same air pressure.
The correct answer is isobar.
The isobars refer to the lines of constant pressure. It is a line drawn on a map of a weather linking the points of equivalent pressure. The isobars are produced from mean sea level pressure reports and the values of pressure are illustrated in millibars.
The isobars help in demonstrating that how pressure are changing over space and so assist in illustrating the large-scale weather patterns across a region on the map.
Which characteristic sets hominins apart from other primates?
A eukaryotic cell that is involved in synthesizing large amounts of protein might be expected to have
A eukaryotic cell that synthesizes large amounts of protein is expected to have a significant number of ribosomes and a well-developed endoplasmic reticulum and Golgi apparatus, as well as numerous mitochondria for energy.
A eukaryotic cell that is involved in synthesizing large amounts of protein might be expected to have numerous ribosomes, a well-developed endoplasmic reticulum (ER), particularly the rough ER where ribosomes are attached for protein synthesis, and a sizeable Golgi apparatus for modifying, sorting, and packaging the proteins.
Proteins are critical to a cell's functions, and ribosomes are the macromolecular machines that synthesize proteins. The rough ER is involved in the production of proteins destined for insertion into the cell membrane, secretion, or use in lysosomes. The smooth ER is associated with lipid synthesis and detoxification processes. After synthesis, proteins are transferred to the Golgi apparatus, which further modifies them and directs them to their final destinations.
In addition to ER and Golgi, you would expect such a cell to have significant numbers of mitochondria for providing the necessary energy (ATP) required for the protein synthesis process.
Angela works at a nursing home and notices some distinct differences among her patients. which of her patients is least likely to have alzheimer's?
The recent acts of activists intent on destruction of research plots included plants altered by molecular as well as classical genetic techniques. is it possible to distinguish between plants altered by classical genetics and those altered by modern techniques? if it is possible how is it done?
Yes, it is possible to distinguish between plants altered by classical genetics and those altered by modern techniques by analyzing specific markers and using DNA analysis.
Explanation:
Yes, it is possible to distinguish between plants altered by classical genetics and those altered by modern techniques. One way to do this is by analyzing the presence of specific markers that are associated with each method. For example, classical genetic techniques often result in random insertions or deletions in the genome, which can be identified through DNA sequencing. On the other hand, modern techniques such as genetic engineering involve the precise insertion of specific genes into the plant's genome, which can also be detected through DNA analysis. Scientists can use various molecular biology techniques to analyze the DNA of plants and determine whether they have been altered using classical or modern methods.
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Which is not a density-dependent factor limiting population growth?
A) predators
B) drought
C) food availability
D) living space
The correct answer is B. Drought
Explanation:
In biology, density-dependent factors are factors that directly depend on the population of organisms, this includes factors such as predators, diseases, resources availability or space that affect the size of a population by limiting it. For example, more organisms lead to little food availability and this leads to a decline in the number of organisms limiting population growth. On the other hand, factors that are not density-dependent are not related to the size of a population but can affect populations of any size. Considering this, the one that is not a density-dependent factor is drought as this is a natural disaster that can affect any population and is not related to the size of populations.
Ocean currents are caused by all of the following except:
underwater landslides
surface winds
tidal fluctuations
density contrasts in seawater
In mantle convection currents, hotter rock moves _______, while cooler rock moves _______.
Answer:In mantle convection currents, hotter rocks move ___upward___, while cooler rocks move ____downward____
Explanation:
Which component of Earth's atmosphere is responsible for absorbing ultraviolet radiation? A. OZone B. Nitrogen C. Water vapor D. Oxygen
Vertebrates that are warm blooded, give live birth to live young, and nourish their young with milk would be classified as
Your answer is: Mammals
How do the finger-like projections facilitate the absorption?
What is the first step for managing innovation during discontinuous change?
The first step in managing innovation during discontinuous change is to: 1. Recognize the signals of change and emerging trends. 2. Analyze and interpret these signals to understand their implications. 3. Develop strategies to adapt to or leverage the discontinuous change through innovation.
The first step for managing innovation during discontinuous change is to recognize the signals of change and understand the emerging trends.
To effectively manage innovation in the face of discontinuous change, it is crucial to be vigilant and sensitive to early indicators of shifts in the business environment. These signals could come from various sources, such as changes in customer preferences, technological advancements, new regulatory requirements, or emerging competitive threats. By recognizing these signals early on, organizations can begin to assess the potential impact of these changes on their current operations and strategic direction.
Once signals are recognized, the next step is to analyze and interpret these trends to gain a deeper understanding of their implications. This involves gathering data, conducting market research, and engaging in strategic conversations with stakeholders, including customers, suppliers, and industry experts. The goal is to develop a comprehensive view of the changing landscape and to identify both the challenges and opportunities that it presents.
After a thorough analysis, organizations can then start to envision potential future scenarios and develop strategies to adapt to or capitalize on the discontinuous change. This may involve pivoting business models, investing in new technologies, re-skilling workforces, or exploring new markets. Innovation management in this context is not just about reacting to change but proactively shaping the organization's future by leveraging innovation to stay ahead of the curve.
Frogs lay thousands of eggs because many eggs die. This is a behavior is an example of
How many crickets will a lizard need to consume if: There are 150 dietary calories in 100 grams of cricket. Crickets weigh 1.0 grams each. It takes 0.5 dietary calories for the lizard to do one pushup. The lizard spends 60 minutes a day doing pushups The lizard does these pushups every day for 30 days during the breeding season The lizard does push-ups at a rate of 10 push ups/ 30 seconds.
4500
6750
9000
12000
The site where the earliest known monkeylike haplorrhine fossils were found is called the __________ depression.
A liver biopsy of a four-year-old boy indicated that the fructose-1,6-bisphosphatase enzyme activity was 20% of normal. the patient's blood glucose levels were normal at the beginning of a fast but then decreased suddenly. pyruvate and alanine concentrations were also elevated. explain the reason for this symptom.
The low fructose-1,6-bisphosphatase enzyme activity in the liver biopsy of the four-year-old boy leads to a decrease in glucose production during fasting. This deficiency impairs the conversion of fructose-1,6-bisphosphate to fructose-6-phosphate, causing a sudden decrease in blood glucose levels. The elevated pyruvate and alanine concentrations indicate the impairment of glycolysis.
Explanation:The fructose-1,6-bisphosphatase enzyme plays a crucial role in the breakdown of glucose during fasting. It converts fructose-1,6-bisphosphate into fructose-6-phosphate, an important step in glycolysis. In this case, the liver biopsy showed that the enzyme activity was only 20% of normal, leading to a decrease in glucose production.
Normally, during fasting, glucose is released from glycogen stores in the liver to maintain blood glucose levels. However, with reduced fructose-1,6-bisphosphatase activity, the body's ability to produce glucose is impaired, causing a sudden decrease in blood glucose levels.
This deficiency also leads to the accumulation of pyruvate and alanine because the conversion of fructose-1,6-bisphosphate to fructose-6-phosphate is compromised. These elevated concentrations further indicate the impairment of glycolysis.
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Which part of a tree always grows down because of gravity?
When a plant is using transpiration to cool off during the day, its stomates are _______ and its water potential is _______ that of the soil. at night, the plant's water potential will be _______ that of the soil (assuming that the soil is receiving sufficient moisture)?
Which term describes materials that have large and connected pores, such as sand and gravel
A nurse is preparing a 24-hour-old baby boy for circumcision. the hospital policy guidelines for circumcision support pain medication at least 1 hour prior to the start of the procedure. the provider did not order the pain medication. the provider arrives, and the nurse refuses to bring the baby for the circumcision stating that the pain medication was not ordered. which is the rationale for refusing to bring the baby for the procedure?
The nurse refused to bring the baby for the circumcision due to the lack of ordered pain medication, which the hospital policy states should be administered an hour beforehand to manage the newborn's high pain sensitivity.
The nurse's rationale for refusing to bring the baby for the circumcision procedure is based on the hospital's policy guidelines, which support administering pain medication at least 1 hour prior to the procedure to manage the infant's sensitivity to pain.
Immediately after birth, newborns are highly sensitive to touch and temperature, and they react strongly to pain with increased blood pressure, heart rate, and stress hormones. Without proper pain management, such as local anesthetics, the infant could experience significant distress and potential long-term effects.Why does a desert have a dramatic change in temperature during the day and at night? Because
c. significally lower
i had the same question its the RIGHT ONE
Several fish species became extinct millions of years ago. The graphs provided below show the distribution of fossils of these fishes as they occur in several undisturbed layers of sedimentary rock observable in a cliff face. Respond to ALL 4 PARTS below: Explain why the distribution of the fossils in figure 1 support the hypothesis that the extinction of these species was a result of a sudden environmental change. Describe an environmental change that could have produced this kind of fossil distribution. Explain why the distribution of the fossils in figure 2 supports the hypothesis that the extinction of these species was a result of a gradual environmental change. Describe an environmental change that could produce this kind of fossil distribution.
He process of dna replication occurs just before ______________.
a.cytokinesis
b.replication
c.cell division
d.nucleosynthesis reactivate
When energy is used, ATP molecules convert to ADP molecules. This process is called _____. dephosphorylation phosphorylation oxidation diffusion
Answer:
B. Phosphorylation
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Andra is having a hard time remembering all the parts of a microscope. To help her label a microscope diagram on her test, she could use: A. keywording B. repetition C. categorization D. visualization
Answer:
D. visualization
Explanation:
A visualization techniques is used to remember things through image perception. It helps to realize the things on ground and correlate with its guided imagery. Through the minds’s eye an individual focuses on actual images. Here, if instead of teaching microscope through diagrams in book, Andra is shown the real microscope and all its parts better explained, then she would be able to remember the tings for a very long period of time.
A young man presents reporting diarrhea, fecal urgency, and weight loss. his stool is light-coloured and malodorous, and it tends to float and be difficult to flush. he has also noted tender, red bumps on his shins and reports pain and stiffness in his elbows and knees. sigmoidoscopy reveals discontinuous, granulomatous lesions; no blood is detected in his stool. which diagnosis would his care team first suspect?