A student is studying the ecology of a playa lake, which forms after a rainfall in a dry lake bed. the table lists the organisms that the student observed. which level of biological organization has the student described in the table?
The number of individuals of a species in a given area is known as
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Farmer Scott is one of the best farmers in town. During the middle of the corn growing season, Farmer Scott had to travel out of town for two weeks, and he left his acres of corn plants alone with no chemicals or other protection.
In terms of succession, which of these best describes what Framer Scott returned to after the two weeks?
A)
Small weeds began to grow and develop.
B)
There was no distinct change in the corn fields.
C)
All of the corn died due to a rampant corn disease.
D)
The corn mutated to form a new species of vegetable.,
Why is the largest dna fragment band found closest to the well in which it was placed?
In agarose gel electrophoresis, larger DNA fragments migrate less due to the molecular sieve effect of the gel matrix which impedes their movement. Thus, they are found closer to the well they were loaded into, while smaller fragments move farther away.
Explanation:The largest DNA fragment band is found closest to the well in because it travels slower through the gel during agarose gel electrophoresis. During this process, DNA fragments are loaded into a gel and an electric field is applied. Due to its negative charge, DNA moves towards the positive electrode. However, the gel matrix forms a molecular sieve, impeding the movement of larger molecules, allowing smaller fragments to pass through more readily. Hence, larger DNA fragments migrate less, staying closer to the well from which they were loaded, while smaller fragments travel farther.
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An enzyme that can facilitate the breakdown of amylose into smaller units is ________.
The oceans absorb carbon through three processes that draw atmospheric carbon dioxide into the oceans: the physical carbon pump, the biological carbon pump and the carbonate pump. Molecules of CO2 enter the ocean by diffusing into the sea surface waters and dissolving as part of the physical carbon pump. All BUT ONE variable influences how much CO2 will diffuse in any given location. That is A) wind. B) salinity. C) water temperature. D) geographic location.
Answer:B
Explanation:
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The variable that does NOT influence how much CO2 will diffuse in any given location is D) geographic location. The other three variables - wind, salinity, and water temperature - can all impact the amount of CO2 that diffuses into the sea surface waters.
For example, higher wind speeds can increase the rate of gas exchange between the atmosphere and ocean, leading to more CO2 entering the ocean. Salinity can affect the solubility of CO2 in water, and water temperature can impact the rate of biological activity that consumes or releases CO2.
The correct answer is geographic location, as this factor does not directly influence how much CO2 diffuses into the ocean. Wind, salinity, and water temperature can affect the solubility of CO2 in water and therefore impact the amount of CO2 that diffuses into the ocean in any given location.
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A skeletal muscle deprived of adequate atp supplies will _____. a skeletal muscle deprived of adequate atp supplies will _____. sequester all free calcium ions into the sarcoplasmic reticulum immediately relax enter a state where actin and myosin are unable to separate fire many more action potentials than usual and enter a state of "rigor"
A skeletal muscle deprived of adequate ATP supplies will enter a state of rigor mortis.
When a skeletal muscle is deprived of adequate ATP supplies, it enters a state known as "rigor mortis." Rigor mortis is a natural post-mortem phenomenon that occurs in the muscles of a deceased organism, typically a human body.
Here's how it happens: ATP is essential for muscle contraction and relaxation. During life, ATP is constantly produced and used to power the cross-bridge cycling between the protein filaments actin and myosin in muscle cells. This cycling allows muscles to contract and relax as needed for various movements.
However, when an organism dies, ATP production ceases, and the available ATP is depleted. Without ATP, the myosin heads that are firmly attached to actin cannot detach from it. As a result, the muscle becomes rigid and locked in a contracted state. This rigidity is what we observe as rigor mortis.
The onset of rigor mortis typically occurs a few hours after death, peaks around 12-24 hours after death, and then gradually dissipates as the muscle proteins break down due to enzymatic processes and decomposition. It's important to note that rigor mortis is a temporary condition and does not last indefinitely. The exact timing and duration of rigor mortis can vary depending on factors like temperature, pH levels, and the individual's overall health at the time of death.
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If a skeletal muscle lacks adequate ATP, it enters a state of rigor where the muscle remains contracted because the actin and myosin proteins cannot separate. The muscle does not immediately relax, sequester all free calcium ions, or fire many more action potentials.
Explanation:A skeletal muscle deprived of adequate ATP (adenosine triphosphate) supplies will enter a state known as rigor. This is because ATP is essential for muscle contraction and relaxation. Without enough ATP, the actin and myosin proteins within the skeletal muscle fibers cannot detach from each other, causing the muscle to remain in a contracted state, or rigor. Therefore, the muscle does not relax immediately or sequester all free calcium ions into the sarcoplasmic reticulum, and it does not fire many more action potentials than usual. Skeletal muscles need ATP to function correctly and carry out processes like muscle contraction and relaxation.
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The nurse is admitting a client who states, "i was bit by a brown recluse spider." which observations made by the nurse would indicate the client's report is accurate?
the weather map shows some conditions in the atmosphere at noon on a particular day. Where would you predict rainy weather
a. Around the great lakes
B. Throughout Caalifornia
C. In the northwest
D. all across texas
The rainy weather would be predicted around the great lakes. Thus, the correct option is A.
What is Rainy weather?Rainy weather may be defined as the weather of a particular location that is characterized by moderate to heavy rainfall.
The location or regions present around the water bodies such as lakes, seas, rivers, etc. undergoes the rainy weather forecastly suddenly by just alterations in the wind flow.
Therefore, the correct option is A.
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Answer:
somewhere around greatlakes
Explanation:
the fronts show that
A medical term that means puncture pleura to withdraw fluid is ____________.________________ ____________________
Final answer:
The medical term for puncturing the pleura to withdraw fluid is thoracentesis, a procedure performed to alleviate symptoms and analyze the cause of a pleural effusion.
Explanation:
The medical term that means puncture of the pleura to withdraw fluid is thoracentesis. This procedure is used when there is an accumulation of excess fluid in the pleural space, a condition known as a pleural effusion, which can interfere with normal breathing. Conducting a thoracentesis involves inserting a needle into the pleural space, often using ultrasound guidance, to remove fluid for both therapeutic relief and diagnostic analysis.
The pleural space normally contains a small amount of fluid which serves as lubrication, allowing the lungs to move smoothly against the thoracic wall during breathing. However, when this balance is disrupted by inflammation, infection, trauma, or other medical conditions, it can lead to pleurisy or other complications such as spontaneous pneumothorax (collapsed lung), which requires prompt medical attention.
Some things are difficult for science to observe so ______ are built in order to study these phenomena.
Answer:
They use models
Explanation:
Some things are to big for the nake eye can see such as a human so make a smaler MODEL of it
How might mendel's conclusions have differed if he had studied two traits determined by alleles carried on the same chromosome?
If Mendel had studied two traits determined by alleles carried on the same chromosome, then he would not have observed independent assortment.
What is Mendel's law of independent assortment?According to Mendel's law of independent assortment, The zygote inherits distinct features from several alleles independently of one another.
Mendelian dihybrid crosses are an excellent illustration of autonomous assortment. Round green and wrinkled yellow are two novel pairings that indicate the genes responsible for seed color and shape are independently sorted. He observed nine plants with round yellow, round green, wrinkled yellow, and wrinkled green seeds in the 9:3:3:1 ratio in the F2 generation.
Therefore, Mendel would not have observed independent assortment, if he had studied two traits determined by alleles present on the same chromosome.
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The client has difficulty swallowing and requests the nurse to crush all the medications. the nurse notes a client prescribed an extended-release opioid requests that all medications be crushed to facilitate the administration. what information about this form of opioid presents a problem respecting the client's request?
187 to achieve the maximum benefit for the heart when exercising, the heart rate (in beats per minute) should be in the target heart rate zone. the lower limit of this zone is found by taking 70% of the difference between 220 and the age of the person. the upper limit is found by using 85% of the difference. complete parts a through
Answer:g
Explanation:
For gorilla my guy
Which cranial nerve is responsible for transmitting visual information?
The optic nerve is the cranial nerve responsible for transmitting visual information from the eye to the brain. It is one of the 12 cranial nerves in the human body which each have unique functions. Some cranial nerves transmit sensory information, others transmit motor information, and some a combination of both.
Explanation:The cranial nerve responsible for transmitting visual information is the optic nerve. This nerve function includes transmitting visual signals from the eye over the axons of retinal ganglion cells, which form the optic nerve, to the brain. Specialized cells within this nerve carry various types of information such as form, movement, depth, brightness, color, and fine detail.
Humans have a total of 12 cranial nerves, each providing unique functions. For example, the olfactory nerve is responsible for transmitting information about smells from the nose to the brainstem, and the oculomotor nerve controls the opening and closing of the eyelid and some eye movements. However, when it comes to the transmission of visual information, the optic nerve is the primary player.
Generally, some cranial nerves transmit only sensory information, others mainly motor information, and some contain a mix of sensory and motor fibers, catering to the complex needs of our biological system.
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n the 1960s, new evidence helped support the theory of continental drift and change it into the theory of plate tectonics. What was this new evidence?
Which group of humans is likely to experience the most devastating symptoms of toxoplasmosis?
the elderly
pregnant women
infants
unborn babies
The answer is unborn babies.
Toxoplasmosis can have serious consequences for unborn babies during pregnancy.
Toxoplasmosis is caused by the parasite Toxoplasma gondii and can lead to severe complications, especially in certain groups. Among the options provided, unborn babies are likely to experience the most devastating symptoms of toxoplasmosis if the infection occurs during pregnancy.
3. How would you date a sample of rock that you suspect as being one of the earliest on Earth? (1 point)
Increased activity of phosphodiesterase in a target cell would decrease its level of
Which of the following most closely models the behavior of a sunspot?
A.
a freckle
B.
an eyelash
C.
a birthmark
D.
a lip
Answer: A. a freckle
Explanation: hope this helps
Coconut milk used in tissues culture enhances cell division and plant growth. What is the active ingredient in coconut milk that causes this effect? 1. The plant hormone cytokinin 2. The plant hormone abscisic acid 3. The plant hormone ethane
Stem cells that will form b cells or nk cells are found only in the
Nuclei of atoms that make up a newborn baby were made in the
Inputs, processes, outputs, feedback, and a goal are all involved in
a.
brainstorming.
b.
technological systems.
c.
troubleshooting.
d.
trade-offs
The correct answer would be option B, Technological Systems.
Input, processes, outputs, feedback and goal are all involved in Technological System.
Explanation:
Technological System is a system which involves things like Input, processes, Output, feedback and goals.
Every fragment of the system has its part in running that system.
Inputs are the things that are being put in the system to achieve or get the desired output.
Processes are the procedures that take the input, govern the system according to it and run it as desired.
Output is the desired outcome from the system or machines after inputting data and having processing over it.
Feedback is to see that the system generated the desired results or not.
Goals are those desired results that need to be achieved by the Technological System.
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Antimicrobial agents that damage the viral envelope __________.
Antimicrobial agents that damage the viral envelope effectively inhibit viral growth without harming the host by disrupting the virus's ability to attach to and enter host cells.
Explanation:Antimicrobial agents that damage the viral envelope are effective in inhibiting viral growth without damaging the host. These agents interfere with the integrity of the viral envelope, which is composed of lipids and proteins. By disrupting the envelope, the agents prevent the virus from attaching to and entering host cells, thereby inhibiting viral replication. One example of an antimicrobial agent that damages the viral envelope is Tamiflu, which inhibits the viral enzyme neuraminidase found in the influenza viral envelope.
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Which of the following is a member of the class Polychaeta?
Clam Worms
Earthworms
Leeches
All of the above
Answer:
Clam worms
Explanation:
The polychaeta is the most primitive and largest class of the phylum Annelida. Polychaetes are marine worms. Polychaetes have a distinct head with specialized sense organs such as eyes. These features differentiate from other annelids. This class includes the clam worm or Nereis
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Sound travels faster in a
solid
liquid
gas
vacuum
How does studying science help you be a better member of society? (1 point)
A. Learning the biases of science will help you know what is right or wrong.
B. Understanding how science works will help you make better decisions
C. Memorizing science facts will help you become more intelligent.
D. Knowing science will help you live without the aid of technology.
PLEASE HELP !!!
The answer to this would be B) Understanding how science works will help you make better decisions!
While assessing an older adult during a regular health checkup, a nurse finds signs of elder abuse. which physical findings would further confirm the nurse's suspicion? select all that apply?
After mars the next most likely candidates for life in the solar system are