In a microbiology laboratory, what does culturing mean?.
Answer: fungi parasites and viruses can be grown in a lab when appropriate conditions are met
Explanation: The precise characteristics of the growing culture can be used to identify the specific microbe
The ability of muscle to shorten forcibly when adequately stimulated is known as ________, and sets muscle apart from other tissue types.
Answer: Contractility
Explanation:
The ability of muscle to shorten forcibly when adequately stimulated is known as contractility, and sets muscle apart from other tissue types.
Acid precipitation can dissolve aluminum from soil. As aluminum is dissolved, it can flow into lakes and contaminate the water. High concentrations of aluminum in
lakes is fatal to many forms of aquatic life. This scenario provides evidence for which of theseconcepts?
A. Environmental change always has a negative impact on organisms.
B. Acid rain is the most important environmental problem to address.
C. Acid rain is the leading cause of death to fish in lakes.
D. Environmental change can impact the quality of life for living organisms.
The scenario described provides evidence for option D: Environmental change can impact the quality of life for living organisms.
The passage explains how acid precipitation, commonly known as acid rain, can dissolve aluminum from soil. This dissolved aluminum can then flow into lakes, resulting in contamination of the water.
High concentrations of aluminum in lakes can be fatal to many forms of aquatic life. This evidence supports the concept that environmental change can have a detrimental impact on living organisms.
Option A is incorrect because the passage does not suggest that environmental change always has a negative impact on organisms. While the scenario highlights a negative consequence of acid rain on aquatic life, it does not generalize this impact to all environmental changes.
Option B is also incorrect because the passage does not claim that acid rain is the most important environmental problem to address. It solely focuses on the specific issue of aluminum contamination in lakes due to acid rain.
Option C is incorrect because the passage does not state that acid rain is the leading cause of death to fish in lakes. It highlights the detrimental effect of high aluminum concentrations, but it does not compare it to other potential causes of fish death in lakes.
Therefore, the most appropriate concept supported by the scenario is option D, which acknowledges that environmental change can impact the quality of life for living organisms based on the example of aluminum contamination in lakes due to acid precipitation.
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Discuss the importance of legislation to protect marshes.
The role of the legislation is to make and pass laws that will be followed by the citizens of the nation.
In this capacity, the legislation may declare endangered marshes under the protection of the government and impose penalties to those who trespass on government lands.
How marshes area help in eliminating pollution?1. Wetlands help in eliminating pollutants and thus helps in bioremediation.
2. The wetlands assist in reducing the frequencies of erosion and floods. The wetlands function as a sponge and captivate the majority of the water at the time of heavy rainfall, which gets released gradually. This, in turn, helps in replenishing the groundwater level.
3. Different kinds of species like insects, plants, reptiles, microbes, and reptiles thrive in wetlands, thus, forming a food web.
4. Wetlands also donate to the economy of the country by providing timber, fish, rice, berries, and other things of medicinal values.
Thus, this could be the answer.
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Describe the processes that occur after pollination, including fertilisation and seed formation.
Answer:
Step one: After pollen has landed on the stigma, it grows a pollen tube down through the style to the ovary. Step two: The nucleus of the pollen grain travels down the pollen tube and fertilises the nucleus in the ovule. Step three: The fertilised ovule develops into a seed.
hope it helps.
EVIDENCE FOR EVOLUTION 3 OF 3 Biogeography Evidence Oceanic islands can be home to species found nowhere else on Earth. Why? Island habitats are more diverse than non- island habitats. Islands are free of disease and carnivores. Islands are often isolated, minimizing gene flow and maximizing diversification. Island habitats are stable, minimizing adaptation and maximizing reproduction.
The statement 'Islands are often isolated, minimizing gene flow and maximizing diversification' explains why islands may have unique species on Earth.
What is isolation?Isolation refers to the absence of gene flow between individuals of the same species for extended periods of time.
Isolation due to geographic barriers (e.g., a island) may led to reproductive differentiation and even to speciation.
In conclusion, the statement 'Islands are often isolated, minimizing gene flow and maximizing diversification' explains why islands may have unique species on Earth.
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Cod fry often settle under the bell of some jellyfish species, whose tentacles are poisonous. Name the form of relationship illustrated by this example. Assume the mechanism of formation of this device
Answer:
Explanation:
해파리 (cnidarians) have a worldwide distribution. Despite most being harmless, some species may cause local and also systemic reactions. 처치 of 해파리 envenomation is directed at: alleviating the local effects of venom, preventing further nematocyst discharges and controlling systemic reactions, including shock. In severe cases, the most important step is stabilizing and maintaining vital functions. With some 차이점 between species, there seems to be evidence and consensus on oral/topical analgesics, hot water and ice packs as effective painkillers and on 30 s application of domestic vinegar (4%–6% acetic acid) to prevent further discharge of unfired nematocysts remaining on the skin. Conversely, alcohol, methylated spirits and fresh water should be 조심스럽게 avoided, since they could massively discharge nematocysts; pressure immobilization bandaging should also be avoided, as laboratory studies show that it stimulates additional venom discharge from nematocysts. Most 처치 approaches are presently founded on 상대적으로 weak evidence; therefore, further research (especially randomized clinical trials) is strongly recommended. Dissemination of appropriate 처치 modalities should be deployed to better inform and educate those at risk. Adequate signage should be placed at 바닷가 to notify tourists of the jellyfish risk. Swimmers in risky areas should wear 보호 장비.What are two sides of the Golgi body
the left brain hemisphere receives sensory input from the _________ and sends motor commands to the _________.
The left brain hemisphere receives sensory input from the right side of the body and sends motor commands to the right side of the body.
What are brain hemispheres?The brain hemispheres are two main parts in which the brain or cerebrum can be divided.
It is well known that the brain hemisphere functions are opposite in direction of functions, i.e. the right hemisphere controls the left and vice versa.
In conclusion, the left brain hemisphere receives sensory input from the right side of the body and sends motor commands to the right side of the body.
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What is the structure and function of microtubules?
Structurally microtubules are composed of alpha and beta-tubulin, whereas their functions include cell division, structural support, etc.
What are microtubules?The microtubules are key proteins present in eukaryotic cells that form part of the cytoskeleton.
Microtubules are composed of subunits of alpha and beta-tubulin that link together to form structures 24 nm thick.
In conclusion, structurally microtubules are composed of alpha and beta-tubulin, whereas their functions include cell division, structural support, etc.
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the diaphragm is innervated by the __________ nerve, which allows it to contract.
The diaphragm is innervated by the phrenic nerve, which allows it to contract.
What is phrenic nerve?The C3-C5 spinal nerves, which are parts of the cervical plexus, give rise to the phrenic nerve, a mixed nerve. It begins in the neck and travels through the thorax vertically before terminating on the diaphragm.
The phrenic nerve is bilateral, there are some significant distinctions between the left and right counterparts in terms of its courses and interactions with surrounding structures.
The primary purpose of the phrenic nerve, which makes it an essential part of the physiology of breathing, is to deliver the full motor innervation to the diaphragm.
Diaphragm is controlled by the phrenic nerve (the large dome-shaped muscle between abdominal and chest cavities). It is necessary for breathing. Diaphragm contracts as a result of signals sent by nerve (become thicker and flatter). This motion makes room for lungs to expand and take in air (inhalation).
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If a human has an X and a Y chromosome pair, they are Otrue-breeding O female Ohybrid O male
Answer:
They are a male.
Explanation:
Two chromosomes that look alike and have the same sequence of genes in the same positions are a(n) ______ pair.
Answer:Gene
Explanation:
What are the adheres junctions?
Adherens junctions (AJs) are defined as cell-cell adhesion complexes that are progressively assembled and disassembled.
What are Adherens junctions?Adherens junctions (AJs) are defined as cell-cell adhesion complexes that are progressively assembled and disassembled. This assembling operation allows cells within a tissue to respond to forces, biochemical signals as well as other structural changes in their microenvironment.
The functions of Adherens junctions are;
Initiate cell-cell contacts.Mediate the maturation.Maintenance of the contact.Read more about Adherens junctions at; https://brainly.com/question/24881456
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The following models show one large cell (A) and four small cells (B). 0 C A B Which of the following states why one of the models is better for moving more nutrients in and out of the cell? © A. B is better because it has more surface area. © B. A is better because it has more surface area. O C. A is better because it has less volume O D. B is better because it has less volume
B is one of the models that are better for moving more nutrients in and out of the cell because B has smaller cells but more surface area than A. Thus, the correct option is A.
How do nutrients move in and out of the cell?Nutrients are entranced throughout cells, tissues, and even your whole body through the blood via capillaries. Tiny blood vessels that unite arteries to the veins also facilitate the transportation of nutrients in and out of the cell.
The surface area of the cell plays an essential function in demarcating its effectiveness in fascinating the nutrients through indirect approaches like diffusion as it assists in transporting the nutrients without utilizing energy.
Therefore, B is one of the models that are better for moving more nutrients in and out of the cell because B has smaller cells but more surface area than A.
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Sharks, whales, and dolphins share similar features such as body shape and the position of fins. However, sharks have gills for breathing,
while whales and dolphins have lungs. These differences indicate that the organisms share common ancestor for
v
Whales also possess a vestigial pelvic bone. The presence of the pelvis bone may indicate that whales?
Ans These differences show that they belong to a same kind of species. But in science whales are categorized as mammal
Explanation:
In part of the model, materials move out of the bag and into the water. which
of the following cell processes does this best model?
a. substances move from an area of low concentration to an area of
high concentration.
b. small molecules easily pass between the phospholipids in the cell
membrane.
c. transport proteins use energy to push large molecules across the
cell membrane.
o d. a vacuole opens to release substances into the area outside the
cell.
previous
Answer:
small molecules easily pass through the phospholipids in the cell membrane
What does an Epidemiologist study?
A. Diseases
B. Plants
C. The Epidermis
D. Insects
Answer:
Epidemiologists study outbreaks of diseases, the causes, locations, and how various communities are affected
More information -
TYPES OF EPIDEMIOLOGOST
1) infection control
2) Pharmaceutical
3) Medical
4).Infectious Disease
5). field
6) Molecular
7).Veterinary
Which of the following describes the characteristics of the offspring of a
cross between pure-breeding tall plants?
A. There is not enough information to answer the question.
B. They will all be short.
C. Some will be tall, and some will be short.
D. They will all be tall.
Accumulation of blood in the abdominal cavity will most likely cause:
According to the research, accumulation of blood in the abdominal cavity will most likely cause distention.
What is distention?It is the dilated state of organic cavities (abdomen), hollow organs (intestine, stomach, pericardium, abdomen, bladder, gallbladder, vena cava) and solid organs (hepatic capsule, etc.).
In this state the abdominal cavity can experience a certain degree of enlargement of its contents without rupturing.
Therefore, we can conclude that according to the research, accumulation of blood in the abdominal cavity will most likely cause distention.
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During an action potential, the rapid decrease in sodium permeability and simultaneous increase in potassium permeability is responsible for __________.
During an action potential, the rapid decrease in sodium permeability and simultaneous increase in potassium permeability is responsible for Repolarization.
K+ departs the cell after Na+, which enters the cell first. Ions can move freely across the axon membrane because of the difference during the action potential.Because sodium contains a positive charge, the neuron becomes more positive and depolarized. Potassium channels take longer to open. As soon as the cell does open, K+ rushes out, reversing the depolarization known as repolarization.Sodium channels close during the peak of the action potential when potassium leaves the cell. When potassium ions are effluxed, the membrane potential is lowered or the cell becomes hyperpolarized.Outside of the cell, the concentration of Na+ is greater than inside the cell. while the concentration of K+ is is greater inside the cell than outside.
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generally speaking, fossils can form when organisms choose one: a. travel over gravels and leave imprints. b. are preserved in recrystallized limestone called marble.
Fossils can form when organisms travel over gravels and leave imprints.
How fossil can formed?Fossils are formed when a living organism i.e. plant or animal dies and quickly buried by sediment. When burred into the soil they leave their imprint on the surrounding environment.
So we can conclude that fossils can form when organisms travel over gravels and leave imprints.
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Organisms with the most beneficial traits will survive. This is commonly known as.
Answer:
O Ecosystem which is survival of the fittest.
Explanation:
Answer:
Natural selection
Explanation:
Which of the following energy is converted into chemical energy by the chlorophylls?
Thermal energy
Light energy
Heat energy
Nuclear energy
Answer:
light energy
Explanation:
Plants take in sunlight given off by the sun to make food during photosynthesis
Answer: Light Energy
Explanation: Chlorophyll absorbs light energy for photosynthesis
(02.07 MC)
The table below shows population data for a particular country in 2010:
Population (millions) 40.5
Births (per 1,000)
30
Deaths (per 1,000) 3
Total Fertility Rate 3.3
Infant Mortality Rate
(per 1,000 births)
Which of the following would explain why the total fertility rate is 3.8 five years later?
2
O A governmental policy to ensure replacement-level fertility remains constant even though there is no change in death rate.
Females are being given fewer educational opportunities so there is a reluctance to have children.
Couples are able to settle down at younger ages and quality of life has improved in the nation.
O The birth rate is determined to be 28 births for every 1,000 individuals five years later.
Option D seems to provide the most information about the total fertility rate, which is 3.8 five years later.
Why does fertility decline over time?A variety of factors contribute to the decline in fertility rates. One of the factors is primarily due to job changes, reproductive health issues, and other factors.
Thus, the answer is option D is the mathematical option that best explains the total fertility rate of 3.8 five years later.
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Which membranous structures conduct impulses through the sarcoplasm to stimulate the release of calcium?.
Which cellular process do scorpions most likely go through to
produce ATP?
A) anaerobic respiration
B) alcohol fermentation
C) lactic acid fermentation
D) aerobic respiration
Answer:
D) aerobic respiration
Explanation:
Write about the importance of exothermic reactions in daily life and illustrate the destruction caused by their absence
Everyday uses of exothermic reactions include self-heating cans and hand warmers. When energy is taken in from the surroundings, this is called an endothermic reaction and the temperature of the surroundings decreases.
Without enzymes, many chemical
reactions would be....
A. slower
B. faster
C. non-spontaneous
D. easier
What is the triad of anaesthetics?
The Triad of anaesthetics as required in the task content are; Narcosis, Analgesia and Muscle relaxation.
What is the Triad of anaesthetics?The triad of anaesthetics as the name implies contains the stage of narcosis, analgesia and finally muscle relaxation and hence, acting on each one of the triad with selective drugs helps to avoid deep levels of central brain depression.
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