Which of the following describes a properly controlled experiment?

Which Of The Following Describes A Properly Controlled Experiment?

Answers

Answer 1

Answer:b

Explanation:


Related Questions

Present five incidences,as examples, where sports personalities'rights were violated.

Answers

Violation of privacy: Instances where sports personalities' personal information, such as private photos or videos, were leaked without their consent, infringing on their right to privacy.

Discrimination and harassment: Cases where sports personalities faced discrimination based on factors like race, gender, or sexual orientation, leading to unequal treatment or exclusion from opportunities.

Contract disputes: Instances where sports personalities' contractual rights were violated, such as unfair termination, breach of contract, or non-payment of agreed-upon fees.

Doping allegations and false accusations: Accusations of doping or performance-enhancing drug use without sufficient evidence, tarnishing the reputation and rights of the athletes.

Media intrusion and sensationalism: Invasion of privacy through aggressive media coverage, paparazzi harassment, or spreading false rumors, affecting the mental well-being and privacy rights of sports personalities.

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Though the brain represents less than 2 percent of your body weight, it uses 25 percent of
the oxygen you breathe and 70 percent of your glucose supply.
The brain has five basic regions:
Cerebellum - Coordinates body movement.
Brain stem - Responsible for basic life functions such as blood pressure and breathing.
Thalamus - A Grand Central relay station for incoming data from all the senses except
smell.
Hypothalamus - A regulator of hunger, thirst, sleep, sexuality, and emotions.
Cerebrum - Our gray matter, home to thought, vision, language memory, emotions. It's
divided into hemispheres. If you're right-handed, odds are the right hemisphere is where
you make sense of music, images, space, emotions. Your left hemisphere is apt to focus
on math, language, speech. In left-handed people, tasks are usually reversed.
The brain works via the communication of nerve cells along complicated circuit patterns
that register on encephalograms as brain waves, including the relaxed "alpha waves" so
beloved by meditators.
What conclusion can you draw from the information provided about the brain?
A. The brain uses a higher percentage of oxygen than any other organ.
B. The cerebrum is the most essential region of the brain.
C. Eating disorders do not involve testing on any regions of the brain.
D. Call regions of the brain are essential for normal human function.
E. Any injury to the brainstem may result in sensory dysfunction.

Answers

Answer:

D. All regions of the brain are essential for normal human function.

Carlton and Vanessa are lab partners in their biology class. One of their labs was to run the smell test experiment on each other.
When performing the smell test, Vanessa was quite good at noticing a difference between the various intensities of vanilla and also
the various intensities of evergreen. Although Carlton could distinguish what the vanilla and evergreen smells were, he couldn't tell
there was a difference in the intensities in the vanilla or the evergreen. Based on the information presented in this scenario, which
of the following is true?
Vanessa has a more sensitive difference threshold than Carlton.

Carlton has an impaired absolute threshold.

Vanessa has a better absolute threshold than Carlton.

Carlton has the superior performance with respect to the difference threshold.

Vanessa has an impaired absolute threshold.

Answers

Vanessa has a better absolute threshold and more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.

Carlton and Vanessa were lab partners for a biology class and were asked to run a smell test experiment on each other.

Vanessa was excellent at noticing the difference between various intensities of vanilla and evergreen.

Carlton, on the other hand, couldn't distinguish the difference in the intensities of both vanilla and evergreen, though he could tell the smells of both.

Hence, based on the information provided in the scenario, it can be inferred that Vanessa has a more sensitive difference threshold than Carlton, and Carlton has an impaired absolute threshold.

The two significant aspects that are involved in the scenario are absolute threshold and difference threshold.

The absolute threshold is the smallest quantity of a stimulus that an individual can detect, whereas the difference threshold is the minimum difference in stimuli that an individual can detect.

Carlton could recognize the stimuli's smell but not the difference in the intensity of vanilla and evergreen.

This shows that Carlton has an impaired absolute threshold.

He could not detect the smallest quantity of a stimulus to differentiate between the smells.

Vanessa was quite good at noticing the difference in the intensities of vanilla and evergreen.

This means that Vanessa has a more sensitive difference threshold than Carlton. She could detect the minimum difference in stimuli required to differentiate between smells.

Vanessa also has a better absolute threshold than Carlton as she could detect the smallest quantity of stimulus required to detect the smells.

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How are primary and secondary succession similar and how are they different?

Answers

Answer:

They are similar in that both involve the growth of new organisms in an environment. However they differ in that primary succession occurs in a place where no life had been before, while secondary succession occurs in place where life had been before, but was destroyed.

Some examples of primary succession include the formation of a new ecosystem after a volcano, glacier outbursts, or a nuclear explosion. Some examples of secondary succession include succession after fire, harvesting, logging, or abandonment of land or the renewal after a disease outbreak.

Answer:

In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.

5. Which of the following is accurate when discussing specific heat?
A. Specific heat values for solids will never vary for different ranges of temperature.
B. The specific heat of a gas can be measured at constant pressure.
C. Specific heat values for liquids will never vary for different ranges of temperature.
D. The specific heat of a gas can be measured at constant volume only.

Answers

When talking about specific heat, it is correct to say that a gas's specific heat may be determined at constant pressure. The correct option is B.

The amount of heat needed to increase a substance's temperature by 1 degree Celsius or Kelvin is known as its specific heat. The specific heat of a gas can be measured at constant pressure.

The specific heat for gases can be calculated at either constant volume or constant pressure. The heat capacity at constant pressure (Cp) and heat capacity at constant volume (Cv) are the terms used to describe the specific heat when measured at constant pressure and constant volume, respectively. For the majority of gases, Cp has a larger value than Cv.

Thus, the ideal selection is option B.

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PLEASE HELP, YOU WILL GET BRAINLIEST! A mutation can only be inherited if it occurs in what type of cell?

Answers

Answer:

Hereditary mutations can only occur in sperm cells or germ cells.

Answer:

Germ cell DNA

Explanation:

it said my answer had to be 2p characters long

The dog are an example of what type of , because the flea irritates the dogs skin and feeds on it blood

Answers

Answer:  parasite

Explanation: I dont know what word was supposed to come after "of", but judging by all the surrounding words, its seems that the answer is parasite. Hope this helps!

look at picture 30 points!!!​

look at picture 30 points!!!

Answers

According to the information, the terms and definitions coincide as follows: Biodiversity (G), Ecosystem Service (F), Ecosystem (D), Invasive Specie (C), Keystone Species (A), Biome (E), Genetic Diversity (B).

How to match the correct definition?

To match the correct definition with the correct concept we have to read the definition and identify what is the main idea. Once we identify all ideas we can match them with the concepts. According to this, the correct match is:

Biodiversity (G)Ecosystem Service (F)Ecosystem (D)Invasive Specie (C)Keystone Species (A)Biome (E)Genetic Diversity (B)

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How is selective pressure related to evolution?
A. Selective pressure can be a driving force of evolution.
B. Selective pressure is the same as evolution.
C. Selective pressure ensures that evolution has an end product.
D. Selective pressure causes evolution to proceed randomly.

Answers

Selective pressure can be a driving force of evolution; option A.

What is selective pressure?

Selective pressure refers to external forces which affect an organism's ability to survive in a given environment.

Selective pressure can either decrease or increase the occurrence of a trait.

Therefore, selective pressure can be a driving force of evolution.

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Which balances the equation Mg + O2 → MgO?

Mg + 2O2 → 4MgO
2Mg + 2O2 → 2MgO
2Mg + O2 → 2MgO
2Mg + 2O2 → 4MgO

Answers

Answer:

C

Explanation:

2Mg + O2 → 2MgO

got it right on edge 2020

Considering the law of conservation of matter, the correct answer is third option: 2 Mg + O₂ → 2 MgO

The law of conservation of matter states that since no atom can be created or destroyed in a chemical reaction, the number of atoms that are present in the reagents has to be equal to the number of atoms present in the products.

Then, you must balance the chemical equation. For that, you must first look at the subscripts next to each atom to find the number of atoms in the equation. If the same atom appears in more than one molecule, you must add its amounts.

So, in the case of Mg + O₂ → MgO, you have:

Left side: 1 Mg and 2 O. Right side: 1 Mg and 1 O.

The coefficients of each molecule below indicate the amount of each molecule for the reaction. This coefficient can be modified to balance the equation, just as you should never alter the subscripts.

By multiplying the coefficient mentioned by the subscript, you get the amount of each element present in the reaction.

So, balancing the O to obtain the same amount in the reactants and products you get:

Mg + O₂ → 2 MgO

So you have:

Left side: 1 Mg and 2 O. Right side: 2 Mg and 2 O.

Since you still don't have the same amount of Mg on both sides, the equation is not balanced. Therefore, balancing the equation again:

2 Mg + O₂ → 2 MgO

So you have:

Left side: 2 Mg and 2 O. Right side: 2 Mg and 2 O.

Now you have the same amount of each element on each side of the reaction, so the reaction is balanced.

Finally, the correct answer is third option: 2 Mg + O₂ → 2 MgO

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Draw and label the structure of a neuron.​

Answers

The nervous system's basic unit is a neuron. The cell body, dendrites, and axon make it up.

Cell Body (Soma): The cell body contains the nucleus and other neuron-essential components. It integrates and sends dendritic signals.

Dendrites: These branches receive input from other neurons or sensory receptors. They receive neuronal impulses as key input locations.

Axon: The long, thin axon conducts electrical signals from the cell body. The fatty myelin coating insulates and transmits signals. Axon terminals or synaptic terminals connect with other neurons or target cells through synapses.

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Draw and label the structure of a neuron.

Most articles pass right through the atom, this means that most of the atom is

Answers

Most articles pass right through the atom, this means that most of the atom is an empty space.

What is an atom?

An atom is described as a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.

Protons and neutrons make up the core nucleus of an atom, which is encircled by an electron cloud. In relation to the size of the atom as a whole, the nucleus is exceedingly small.

As a result, the electrons surrounding the nucleus are the primary target of interactions when particles or even light pass through an atom. The majority of the atom's remaining space, which includes the nucleus, is vacant.

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When jaw become large enough to hold the permanent teeth . The milk teeth fall and permanent teeth appear

Answers

The "exfoliation" or "shedding" of milk teeth is the name of the procedure.

What is the Dentition of Humans?

The primary and permanent tooth sets make up the human dentition. Maxillary (upper) and Mandibular (lower) are the two opposing arches in which teeth are arranged. These can be split into their left and right halves along the midline (mid-sagittal plane).

Four Different Teeth Types and Their Purposes

The majority of individuals have 32 permanent adult teeth, which can be classified into four groups:

Incisors, Canines, Premolars, and Molars.

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What does a gene carry for a trait

Answers

Answer:

Information or characteristics

Explanation:

Genes are things you inherit from your parents at birth. Genes carry the information that was inherited from your parents.

Hope this helps!

how do Euglena reproduce?​

Answers

Euglena reproduce asexually, by longitudinal cell division; they are not know to reproduce sexually. Several species produce resting cysts that can withstand drying. Euglena live in fresh and brackish water habitats rich in organic matter.

how many amino acids can be coded for 288 bases?​

Answers

Answer:

76 amino acids can be coded for 288 bases.

1 point

What is the difference between a solid, a liquid and a gas of the same substance?

O None of the above are true.

Answers

Answer:solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume.

Explanation:

Pandas are very stubborn animals. They only eat bamboo. The only bamboo forest in the world is currently being cut down. What is likely to happen to the panda population over time

Answers

Answer:

Adaptation Or Extinction Is Possible

Explanation:

As due to the fact that pandas only eat bamboo, if bamboo were slowly chopped down, they could either go extinct due to the fact they have nothing to eat, but it possible for them to change their diet to eat other vegetations such as, fruits or other plants similar to bamboo.

Pandas are probably most likely going to eat another diet, unless their population slowly drifts and fade into dust and air. This is my opinion and thinking :D!

<3

Answer:

Adaptation Or Extinction Is Possible

Explanation:

please mark brainlyist

Organic semiconductors are a new technology that scientists are considering for the next generation of solar
panels. Manufacturers want to produce efficient semiconductors at a low cost. Which type of organic
semiconductors would be most desired as a solar panel technology?

Answers

The specific properties of the most desired organic semiconductors for solar panel technology may evolve as advancements are made in the field.

In the context of solar panel technology, the most desired type of organic semiconductors would typically possess the following characteristics:

High Efficiency: The organic semiconductors should have a high power conversion efficiency, meaning they can efficiently convert sunlight into electricity. This is crucial for maximizing the electricity output of solar panels.

Tunable Bandgap: Organic semiconductors with a tunable bandgap would be advantageous. The bandgap determines the range of light wavelengths that can be absorbed by the material. A tunable bandgap allows for optimization to match the solar spectrum, enabling better absorption of sunlight and improved overall efficiency.

Long Operational Lifetime: The organic semiconductors should be stable and exhibit a long operational lifetime. Solar panels are expected to endure outdoor conditions for many years, so the materials used should be resistant to degradation, such as from exposure to UV radiation or moisture.

Scalability and Low Cost: Manufacturers aim to produce organic semiconductors on a large scale at a low cost. Therefore, desirable organic semiconductors should be readily synthesized using cost-effective methods and be compatible with high-volume manufacturing processes.

Environmental Friendliness: Organic semiconductors that are environmentally friendly and have low toxicity are desirable. This is aligned with the goal of sustainable and clean energy technologies.

It is important to note that the field of organic semiconductor research is still evolving, and scientists are continually working to improve the performance and characteristics of these materials.

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Which of the following terms describes the tendency of plant stems and flowers to turn toward sunlight?


geotropism

chemotropism

gravitropism

phototropism

Answers

Answer:

phototropism

Explanation:

The term that describes the tendency of plant stems and flowers to turn toward sunlight is phototropism.

Answer:  The correct answer is phototropism

Explanation:  This answer has been confirmed correct.

Phototropism is the tendency of plants to turn toward sunlight.

Glycogen, amino acids, cholesterol, and fat-soluble vitamins are
stored in the

Answers

Answer: Muscles

Explanation: the body transforms carbohydrates into glycogen that is in tun stored in the muscles for energy

Please Help Fast!!!!!!
1)The properties of water are an essential part of what makes water unique. What effect does the properties of water have on Earth’s surface and its systems?
2)How does water’s molecular structure affect solubility of substances on Earth? Provide a real-world example.?
3)Explain how all the properties of water are related. Provide an example to describe the interconnectivity of each property. Be sure to include hydrogen bonding, polarity, surface tension, capillary action, cohesion, adhesion, high specific heat, and expansion upon freezing.

Answers

Water may form bonds with both positively and negatively charged molecules, which helps with its solubility in many substances.

What characteristics of water are a crucial component of what makes it special?

Due to the polarity of water molecules, hydrogen bonds are formed. As a result, water has special qualities like polarity, solvency, cohesion, adhesion, high specific heat, and the capacity to act as a buffer.

What impact do water's characteristics have on the surface of the Earth and its systems?

Water possesses a remarkable ability to absorb, retain, and release vast amounts of energy. It can also transmit sunlight, expand when frozen, dissolve and transport objects, and have lower viscosities and melting temperatures than rocks.

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the length and breadth of a rectangular Courtyard is 90 m and 42 m find the distance covered by a boy if it takes 5 rounds of courtyard​

Answers

Answer:

Area = L × B

= 90 × 42

= 3780 m

According to the question

He takes 1 round in 3780m

So ,

5 round = 5 × 3780

=18900

Explanation:

What processes can change sedimentary rock into igneous rock?
O A. Lithification and cooling
OC. Heating and cooling
OD. Uplift and erosion
B. High pressure and deposition

Answers

Answer:

heating

Explanation:

when it heat it come down

Answer:
Heating and cooling

Explanation:
When sedimentary rocks are heated with tremendous heat and pressure, it will melt into magma. After some time it will cool and harden to form an igneous rock.

Draw the structure of ATP molecule and explain how it is formed​

Answers

ATP is formed from the breakdown of glucose molecule in mitochondria of the cell.

ATP molecule is formed in the process of respiration i.e. aerobic and anaerobic. During aerobic cellular respiration, glucose reacts with oxygen in the mitochondria of the cell, forming ATP that can be used by the cell in different cellular activities. When glucose reacts with oxygen, three molecules are formed i.e. ATP, Carbon dioxide and water. ATP is used by the cell whereas the Water and carbon dioxide molecules are waste materials which are removed from the cell so we can say ATP is formed from the breakdown of glucose molecule in mitochondria of the cell.

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Draw the structure of ATP molecule and explain how it is formed

What are the 5 main sinks of carbon

Answers

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among five spheres of the Earth, carbon (C) sinks: the biosphere, pedosphere, lithosphere, hydrosphere, and atmosphere (These are not mutually exclusive, see Glossary).

Answer:

bio, pedosphere, litho, hydro, a t m o

Explanation:

sphere

Which choice best explains what symbiosis is?

Answers

Symbiosis is both:

A relationship that helps both species.

&

Close association between two or more species in an ecosystem.

Which organism has an endoskeleton?An arthropod. For example: a crab.A mammal. For example: a humanA Cnidarian: For example: a jellyfish

Answers

The correct answer is A mammal. For example: a human

An endoskeleton is an internal skeleton that consists of hard, mineralized structures located within the soft tissue of organisms.

All arthropods have a hard exoskeleton.

Jellyfish do not have a proper skeleton.

What can the reader conclude about homeostasis?

Answers

Your body would be unable to sustain equilibrium without external and internal stimulation. Homeostasis is a characteristic of systems that manages their internal environment and tends to maintain a stable, continuous state despite changing external variables.

If the frequency of the p allele is 63 in the population then what is the frequency of the q allele?
040
0 55
0 37
O 137

Answers

The answer is 37 I’ll comment why if it lets
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