BIOLOGY HIGH SCHOOL

Hydrogen peroxide is a harmful by-product of normal metabolic activity. In order to prevent damage, hydrogen peroxide must be broken down into water and oxygen quickly. What would speed up the decomposition of hydrogen peroxide? A) a catalyst
B) bubbling in oxygen
C) decreasing the temperature
D) adding more hydrogen peroxide

Answers

Answer 1
Answer: A. A Catalyst is defined as speeding up a chemical reaction, and breaking Hydrogen Peroxide apart chemically is a chemical reaction which abides by allowing a catalyst being present to speed up the reaction. Reactions occur faster with a catalyst because they require less activation energy
Answer 2
Answer:

Answer: A

Explanation: USATestPrep

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Where in an embryo are the instructions located for how to build organs

Answers

All the instructions are encoded in the DNA within the nucleus. We don't fully understand how the zygote, with the same genetic material as our adult cells, instructs the newly developing embryo to form tissues and organs, but it is all in the DNA.
It's cell differentiation signals produced by nucleus of cells. In an embryo, there are unspecialized pluripotent embryonic stem cells that rely on cell signals to differentiate into organs, even before the embryo is formed, in the blastocyst stage, there are 2 layers of cells, the inner cell mass is destined to form internal organs, and the outer ball of cells forms skin cells, intestines etc

when a toxic waste site is listed by the U.S government who is initially responsible for cleaning up site

Answers

 Environmental Protection Agency (EPA) uses clean up authorities independently to address clean up situation: 
-Under Superfund, or CERCLA, they find companies or the people responsible for contamination and negotiates with them to clean up the site.
-Resource Conservation and Recovery Act (RCRA) provides EPA with enforcements authorities to ensure the sites are clean up.

What is another word for cytosol

Answers

Another word for cytosol  is cytoplasm.

Which area of the central nervous system contains cerebrospinal fluid?a)Efferent tissue
b)Subarachnoid space
c)Dura mater
d)Grey matter

Answers

the CN system contains cerebrospinal fluid is the Efferent tissue

What is the process of identifying the events (stimuli) that precede pain behaviors (responses) as well as the consequences that follow (reinforcers) in pain management called?

Answers

Answer:. Biotic limiting factors:

- Alligator: The presence of alligators in the simulation acts as a biotic limiting factor. Alligators are known predators of cricket frogs and can feed on them, thus reducing the cricket frog population.

- Mosquito: Mosquitoes are also considered a biotic limiting factor. They can potentially transmit diseases to cricket frogs or compete with them for resources, affecting their population.

2. Abiotic limiting factors:

- Food: In the lab simulation, food availability serves as an abiotic limiting factor. If cricket frogs do not have access to an adequate food supply, their survival and population growth can be negatively impacted.

- Pollution: Pollution, another abiotic limiting factor, can have detrimental effects on the cricket frog population. Pollution in the air or water can lead to habitat degradation, decreased water quality, and ultimately affect the survival and reproductive capabilities of the frogs.

3. Limiting factor impacting the cricket frog population the most:

- The predator population (alligator): Based on the evidence provided, the alligator population had the greatest impact on the cricket frog population. Alligators are known to be predators of cricket frogs, and their presence in the simulation likely resulted in significant predation and reduction of the cricket frog population.

4. Limiting factor impacting the cricket frog population the least:

- Pollution: From the information given, pollution is identified as an abiotic limiting factor. While pollution can negatively affect the cricket frog population, the evidence provided suggests that the predator population (alligators) had a more significant impact. Therefore, pollution is considered to have impacted the cricket frog population the least.

Explanation:

Final answer:

Operant Conditioning is the process by which clinicians identify the stimuli that lead to pain behaviors and the reinforcers that follow, thereby enabling the development of relevant strategies for pain management.

Explanation:

The process of identifying the events (stimuli) that precede pain behaviors (responses) as well as the consequences that follow (reinforcers) in pain management is called Operant Conditioning. This principle of behavioral psychology, which holds that our behaviors are motivated by the consequences they produce, is often used in behavioral therapy for chronic pain management. By understanding the stimuli that lead to pain behaviors and the consequences that reinforce them, clinicians can help patients develop strategies to mitigate their pain.

Learn more about Operant Conditioning here:

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Why do you think species remain in a stage of stasis?a. A stable ecological niche leads to absence of selection pressure, which in turn causes species to remain unmodified or in stasis.
b. An unstable ecological niche leads to various selection pressures, which in turn causes the species to remain in a stage of stasis.
c. A stable ecological niche leads to various selection pressures, which in turn causes species to remain unmodified or in stasis.

Answers

The answer is A. A stable ecological niche leads to the absence of selection pressures, which in turn causes species to remain unmodified or in stasis. This can be simplified with an example: If there are just enough lions on an island and just enough buck for both species to survive without the lions starving or the buck being killed off, neither of the species would have to adapt to survive because their predator-prey relationship is stable. This means that they can continue to live in this state of stasis or equilibrium.

Answer:

A.  

A stable ecological niche leads to absence of selection pressure, which in turn causes species to remain unmodified or in stasis.

Explanation:
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