I want to design an experiment to see if drinking coffee makes students
score higher on tests. What would be the control group in this
experiment? *

Answers

Answer 1
Control group would be students that didn’t drink any coffee

Related Questions

outline the steps of scientific investigation.

Answers

Make observations Ask a questionForm a hypothesis Test the hypothesis Draw a conclusion Communicate results

Answer: Make Observations, Ask a Question, Form a Hypothesis, Test Hypothesis, Draw Conclusion, Communicate Results

Explanation: Hope this helps :)



name process by which products of digestion, present in high concentrations in the ileum,would pass into the capillaries​

Answers

Transportation is the process by which product of digestion present in high concentration iin the ileum

Do ionic bonds give electrons?

Answers

Answer:

In ionic bonds, there is a transfer of electrons from one atom to another. Because of the transfer of electrons, the atoms that gain electrons become negatively charged, while the atoms that lose electrons will be positively charged. [1] If the atom has an additional electron, then the atom becomes a negative ion, known as anion. Meanwhile, if the atom loses electrons, then the atom becomes a positive ion or cation. [2] Because of the difference in charge between ions (positive ions and negative ions), the positive and negative ions will attract each other by electrostatic forces. This event is the basis of ionic bonding.

#sorry if wrong

No single characteristic alone can describe a living thing, but all living
things share certain characteristics. Which is NOT one of these
characteristics? *
*
A. Reproduction

B. Made of a cell/Made of cells

C. Ability to walk from place to place

D. Ability to respond to the stimuli

Answers

No single characteristic alone can describe a living thing, but all living

things share certain characteristics. Which is NOT one of these

characteristics?

A. Reproduction

B. Made of a cell/Made of cells

C. Ability to walk from place to place

D. Ability to respond to the stimuli

Ability to walk from place to place is not a single characteristic that can describe a living thing.

What are the living thing?

Living things are made up of a cell or cells. They obtain and use energy to survive.

What are the Characteristics of Living Things?

The characteristics of living things are:

Living things are made of cells. Living things have movement. All living things have a metabolism. Living things grow.

Therefore, ability to walk from place to place is not a single characteristic that can describe a living thing.

Hence , correct option is C

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A student is studying the movement of an object undergoing uniform motion.
What is the velocity of the object?

А Its velocity is zero.

B Its velocity is increasing.

с. Its velocity is decreasing,

D . Its velocity is constant.

Answers

Answer:

Explanation:

its velocity is constant

The nucleus of an atom contains

Answers

Answer:

The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

Explanation:

The nucleus contains electrons

Which are the functions of proteins?
A) Genetic information and regulation
B) Enzymes and antibodies
C) Hormones and steroids
D) Insulation and storage

Answers

Answer:

B)

Explanation:

because Enzymes & antibodies are the only one with proteins ')

Enzymes and antibodies are the functions of proteins. So the correct option is B.

What are protein structures?

The end products of the decoding process that begins with the Replication of cellular DNA are the proteins. Proteins are called the workhorses of the cell. They form all the motor and structural elements in the cell.

They also help in the catalysis of almost all biochemical reactions that take place in a living organism. These extreme ranges of functions are derived from a simple code structure that defines these diverse sets of structures.

In the cellular DNA, each of the genes codes for a unique structure of the protein. These proteins are assembled with unique sequences of amino acids.

These structures are held with each other by bonds and are folded in different varieties of three-dimensional structures.  The linear amino acid sequence of the protein determines the folded shape or conformation.

Therefore the correct option is B.

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what is biology? what is the scientific method?

Answers

Answer:

Biology is the study of living things.

The scientific method is a method of procedure that has characterized natural science.

Explanation:

Analise as alternativas a seguir e marque aquela que NÃO descreve uma função do sistema nervoso. 1 ponto a) captar e interpretar estímulos do ambiente. b) transportar informações. c) criar respostas por meio de movimentos, sensações ou constatações. d) transportar de nutrientes e oxigênio para o corpo. e) controlar a atividade dos músculos.

Answers

English translation of the question is as follows:

Analyze the alternatives below and check the one that does NOT describe a nervous system function. 1 point

a) capture and interpret stimuli from the environment.

b) carry information.

c) creating responses through movements, sensations or findings.

d) transport nutrients and oxygen to the body.

e) control the activity of the muscles.

Answer:

d) transport nutrients and oxygen to the body.

Explanation:

Nervous system functions to communicate with other cells through synapses and through membrane-to-membrane transfer that allows rapid transmission of signals that controls muscle activity and create responses through movements, sensations or findings.

Nervous system do not function to transport nutrients and oxygen to the body.

Hence, the correct option is "d)".

Asexual reproduction occurs during _____. chromosome exchange between organisms of different species meiosis mitosis. fertilization

Answers

Answer:

Asexual reproduction occurs during mitosis.

Asexual reproduction is the duplication of the genetic material from a parent organism to create a new organism. In mitosis also the cell first makes the division of DNA or nucleus after that the division of cytoplasm takes place and thus the parent cell divides itself into 2 daughter cells which are like each other.

. During development, some cells become liver cells, somet
ells and some become muscle cells. This process is called

Answers

Answer:

Cellular differentiation.

Explanation:

Cellular differentiation is the process in which a cell changes from one call type to another. Usually, the cell changes to a more specialized type. Differentiation of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.

What name is given to a large network of neurons within the brainstem that is essential for maintaining wakefulness

Answers

Answer:

These are the Reticular Activating system

Explanation:

These are network of neurons that occupy lager areas of the  brainstem. They are located between the brain stem and the cortex.These neurons projected anteriorly into the hypothalamus, posteriorly into the thalamus to form the ascending RAS and emerged directly into the cortex.

Generally,the RAS is made up of 4 components.These are each made up of group of nuclei .The latter are   simultaneously activated by the lateral  hypothalamus,which cause the release of  neurotransmitters that  cause the modulatory effects produced by the  entire RAS

Their major function is the control of sleepiness and wakefulness in individuals.It does this with the interactions with a lot of neurotransmitters present in the brain.

Besides the above functions the RAS is also responsible for the control of focus, stability of muscles tone.

Oxygen diffuses from the alveoli into surrounding capillaries.Oxygen diffuses from the alveoli into surrounding capillaries. Oxygen is carried through blood vessels to a capillary.Oxygen is carried through blood vessels to a capillary. Oxygen diffuses from the blood to the body's tissues.Oxygen diffuses from the blood to the body's tissues. Oxygen binds to a molecule of hemoglobin.Oxygen binds to a molecule of hemoglobin. Oxygen enters a red blood cell.Oxygen enters a red blood cell.

Answers

Answer:

The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place (Figure below). The transfer of oxygen into the blood is through simple diffusion. ... While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries.

Explanation:

what is a scientific hypothesis? what characteristics must a hypothesis have to be useful in science?

Answers

Answer:

A scientific hypothesis must meet two criteria:

Explanation:

A scientific hypothesis must be testable. A scientific hypothesis must be falsifiable. hope this helps you :) god loves you :)

A scientific hypothesis proposes an explanation for an event that happens. We can observe it but not explain it, so we suggest a possible explanation. The characteristics that a hypothesis has to have are:

TestabilityFalsability

A scientific hypothesis suggests an explanation for something that we observe in nature but can not explain. We formulate them using the format if/then. In the first part, we propose the possibility with if. In the second part, we propose the outcome with then. For example, If humans don't eat meat, then they lack Ferrum.

The two characteristics that a scientific hypothesis must have are:

Testability:

Scientists have to be able to do experiments to get information and prove the hypothesis to be correct or not.

Falsability:

It means that the hypothesis, after experiments and observations, can be refuted.

In conclusion, a scientific hypothesis suggests a solution or explanation. It must have the characteristics of testability and falsifiability to be useful in science.

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Organisms can be classified as living as long as they have most of the characteristics of life, true or false?

Answers

Answer:

true

Explanation:

eight characteristics

Fortunately, biologists have developed a list of eight characteristics shared by all living things. Characteristics are traits or qualities. Those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution

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What causes cystic fibrosis?

Answers

Answer:

Cystic fibrosis is caused by a change, or mutation, in a gene called CFTR (cystic fibrosis transmembrane conductance regulator). This gene controls the flow of salt and fluids in and out of your cells. If the CFTR gene doesn't work the way it should, a sticky mucus builds up in your body.

Answer:

Hi the picture will help you better understand that explanation. :)

Explanation:

( [tex]CF[/tex] [tex]is[/tex] [tex]a[/tex] [tex]disease[/tex] ....

***‘CF stands for Cystic fibrosis‘***

It mostly happens when your parents have them. (It passes on... so you get it from your parents.)

(Answer to your question) => People who have that, it’s hard for them to breathe. Cystic fibrosis happens from changes from CFTR. Just in case if you think you have them, but you want to make sure... than you should do a Blood test, DNA test, and Sweat test. If they find out they have that, than they should try to take care of them self. But the only thing is... there is no cure for this disease. :( below is a picture...

By:✨RobloxYt✨

Explain how this experiment disproves the theory of spontaneous generation.

Answers

Answer:

The theory of spontaneous generation was suggests that the living organisms can come from inanimate objects, however it is an obsolete theory that is disproved by many experiments. The very first experiment that disapproved it was the experiment by Francesco Redi in 1668.

He demonstrated that maggots come from the eggs of flies instead of rotting meat. He placed raw meat inside of every jar. Half the jars he left open and the other half, he covered with mesh. In open jars he found maggots after some time but covered jars have no maggots. That proved that the maggots come from eggs of flies rather than rotten meat.

Organelles called plastids are found in

Answers

Answer:

fHay dos tipos de plastos claramented diferenciados, según la estructura de sus membranas: los plastos primarios, que se encuentran en la mayoría de las plantas y algas; y plastos secundarios, más complejos, que se encuentran en el plancton

Explanation:

A microbiologist is attempting to determine the size of a microbial population and has employed several methods. She noticed that the direct count she obtained using a counting chamber and microscope was much higher than her estimate from doing a viable plate count. This discrepancy was encountered during multiple trials. What is the most likely reason for the discrepancy

Answers

Answer:

The options are

A. She did not correctly do the serial dilutions to the viable plate count

B. Many organisms viewed during the direct count may be dead

C. The organisms were not readily cultured on the viable count, either because many were dead or because the medium and growth conditions used for the viable count will not support the growth of the microorganism

D. The medium and growth conditions used for the viable count will not support the growth of the organisms

The answer is C. The organisms were not readily cultured on the viable count, either because many were dead or because the medium and growth conditions used for the viable count will not support the growth of the microorganism

Explanation:

The discrepancy encountered during multiple trials which involved noticing that the direct count she obtained using a counting chamber and microscope was much higher than her estimate from doing a viable plate count was most likely as a result of the organisms were not readily cultured on the viable count, either because many were dead or because the medium and growth conditions used for the viable count will not support the growth of the microorganism.

How many traits does a dihybrid cross examine?

Answers

Answer:

Explanation:

Hello friend

The answer is two

Hope this helps

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i think it’s 2
hope its helpful

Which of the following is an example of a limiting factor?
A. A prolonged drought
B. Heavy rainfall
C. A small pond

Answers

A prolonged drought.

I think it is A, a prolonged drought because you have limit to water, so that is the limited factor. Hope this helps!

Answer:

A: A prolonged drought

A population of bacteria sees an increase in the number of bacteria resistant to a certain antibiotic over a number of generations. This is known as ______________.

Answers

Answer: MICROEVOLUTION

Explanation: Microevolution simply means those changes in the alleles frequencies of an organism over time.

In other words,we will say that microevolution is the generation to generation change in a population's frequencies of alleles.

These changes can occur due to natural or artificial selection,

Gene flow, mutation and genetic drift.

From the question asked,when a population of bacteria sees an increase in the number of bacteria resistant to a certain antibiotic over a number of generations,it is simply known as microevolution.

Abe drank 5712 mL (milliliters) of diet coke. His wife Martha drank 7.04L of diet coke. How much more diet coke did Martha drink
IN LITERS? SHOW YOUR WORK

Answers

Answer:

Martha drank 1328mL or 1.328 Litres more of diet coke

Explanation:

The first step in solving this problem is to convert the two quantities to the same units.

For this problem, we can choose to work in milliliters.

Converting 7.04L to milliliters

To do this we simply multiply by 1000 because 1000mL makes one Litre.

7.04 X 1000 = 7040 mL

Once the two quantities are in the same units, the next step is to subtract them.

7040 mL - 5712 mL = 1328mL

Therefore Martha drank 1328mL or 1.328 Litres more of diet coke

If a scientist is studying the evolutionary relationship between two species of birds, what tool could she use to help her chart their relationship

Answers

Scientists collect information that allows them to make evolutionary connections between organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.

How an exoskeleton enables invertebrates to live in a variety of habitat

Answers

Exoskeletons protect soft body tissues, prevent water loss and provide protection from predators.

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One factor that could account for a drop in the water table is:

A. more clouds.

B. more wind.

C. less porous soil.

D. less rain and snow.

Answers

Answer:

D: less rain and snow.

Explanation:

D. Less rain and snow

A non living thing such as a bicycle does not grow.
However, a crystal immersed in a saturated solution
may increase in size. How is this change different
from that of a living organism?

Answers

Answer:

In living organisms, the growth is permanent, and is usually due to an increase in cells. The crystal does not contain cells, and the change in size is due to a chemical process which can also be reversed using other chemical processes.

hope it helps you !

In what stage do stars spend the large majority of their life cycles? Why

Answers

A star will enjoy most of its life in the main sequence phase. At this point nuclear fusion is turning hydrogen into helium. The star is only stable because the light pressure of this energy balances out the star's gravitational collapse.

Acellus
Plants use photosynthesis
to remove carbon from
the atmosphere. How
does carbon get back into
the atmosphere?

Answers

Answer: By us people breathing in oxygen and breathing out carbon dioxide.

does sound travel at the same speed through all materials

Answers

Answer:

no

Explanation:

Sound travels fastest in liquid than in air and than in solid

Water> Air> Solid

Hope it helps :)

Answer:yes

Explanation:

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