PLEASE HELP!!!! How do you think cell phones affect attention in class? Describe an experiment you could perform to test your hypothesis. Include your hypothesis, operational definitions of your independent and dependent variables, who your participants would be, and how you would randomly assign them to experimental or control groups.

Answers

Answer 1
Let a portion of students take a test without studying and a portion just chilling on their phone before the test

Related Questions

Rocky Mountain Bighorn Sheep live in the mountains. Which behavior is a result of living at high elevations?

Answers

Answer:

They have developed thicker skin/fur to shield themselves from the colder tempter in the higher elevation.

Explanation:

two examples of heat energy​

Answers

Answer:

sun and electric heater

Explanation:

sun is the biggest source of heat energy

electric heater is also an example of heat energy as it warms us

1. A cup of fresh coffee is very hot because the water particles are vibrating very rapidly giving the coffee heat energy.

2. A fire is a chemical reaction that is releasing energy as bonds are being broken, this energy is felt as warm or hot and is a release of heat energy.

Why do identical twins have some DIFFERENCES?
A. The same genes are expressed because of their environment.

B. Different genes are expressed due to their environment.

C. Their DNA is different.

Answers

Answer:

B. Different genes are expressed due to their environment.

Explanation:

I think it's this one because it makes the most sense, but I'm still not sure sorry

Answer:

B. Different genes are expressed due to their environment.

Explanation:

Some identical twins can have different heights and weights. This is because height and weight are controlled by what you eat as well your DNA. Differences in diet can start earlier than you might imagine. When the twins are growing inside the uterus, there can be differences in how well they connect to the placenta.

El pelaje negro de los borregos se debe a un alelo recesivo n frente a su alelo N que determina el pelaje blanco. Si cruzamos un individuo homocigótico blanco con un homocigótico negro, ¿de qué color serán los descendientes de la primera generación filial? GENOTIPO-FENOTIPO

Answers

Answer: Los descendientes de la primera generación filial tendrán un genotipo Aa y un fenotipo color blanco.

Explanation:

Un gen es un segmento de ADN que codifica para una proteína. Para cada gen, hay distintas versiones, conocidos como alelos. Por ejemplo, el gen que codifica para el pelaje tiene los alelos para el color blanco y para el color negro. Considerando que los organismos diploides tienen dos copias de cada gen (dos alelos), un alelo dominante solo necesita una copia para expresarse. Mientras que un alelo recesivo, necesita dos copias.

En este ejemplo, el borrego homocigota blanco tiene un genotipo (conjunto de genes) de AA ya que el color blanco es dominante y al ser homocigota indica que ambos alelos son iguales. El borrego homocigota negro tiene un genotipo de aa ya que se necesitan dos alelos recesivos para mostrar ese fenotipo (características visibles).

Los borregos producen gametos, los cuales son células sexuales (espermatozoide u óvulo) haploides, es decir que solo poseen un alelo de cada gen. Entonces el borrego AA solo produce gametos con genotipo A, mientras que el borrego aa solo produce gametos con genotipo a. Estos gametos son los que se cruzan, es decir que la descendencia solo puede tener un genotipo Aa (con un alelo de cada padre)

El genotipo Aa posee un alelo dominante A (que codifica para el color blanco) que enmascara los efectos de el alelo recesivo a (que codificaría para el color negro) Entonces, los descendientes de la primera generación filial tendrán un genotipo Aa y un fenotipo color blanco.

As surface water in a lake cools from 4 °C to 0 °C, the water expands and becomes less dense. Why is this change in the water beneficial to the organisms living in the lake? As the water cools to freezing, spaces form between water molecules, providing microhabitats for small organisms. Frozen surface water insulates the water below it, maintaining a habitat where organisms can overwinter. Cooler water is less viscous than warmer water, making it easier for organisms to move through the water. Less dense water holds more dissolved compounds, keeping water from freezing so organisms survive winter.

Answers

Answer:

As the water cools to freezing, spaces form between water molecules, providing microhabitats for small organisms.

Explanation:

This change in the water is beneficial to the organisms living in the lake because the water which freezes formed spaces between water molecules, that providing microhabitats for small organisms. The cold temperature causes formation of ice crystals on the surface of water which work as an insulator whereas the lower part of the water remain warm and the organisms can survive in that environment.

Which cells are not locked into becoming one particular kind of cell and are capable of developing into specialized tissues (example; nerve cells, muscle cells and skin cells) ?

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Explanation:

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Francis was recording plant heights for an experiment. Each time that she took a measurement, she wrote it down. Then, she measured the plant again and compared the new measurement to the one that she had recorded in her notebook. What was she most likely trying to do
revise her hypothesis
check her memory
make the data more valid
form a conclusion

Answers

revise her hypothesis I guess because

she recorded the experiment again and again and then wrote it so she could get more knowledge about the experiment

Answer:

A

Explanation:

edge 202

Anyone know any good books to study exam style questions for 9th grade biology?

Answers

Answer:

eph and sap and glm assessment and theory books

If a decision was made to increase the production of biofuel, which would be an example of a negative trade-off based on this decision?
a. The decline in the dependency on oil
b. Reduced dependency of foreign energy
c. Rising consumer food prices
d. Increase revenue for farmers

Answers

Answer:

C: Rising cunsumer food prices

Which structure does a virus have in common with a prokaryotic cell?
cell wall
O nucleic acid
ribosome
capsid

Answers

Answer:

Explanation:

cell-wall

the answer is capsid

¿POR QUÉ ES TAN IMPORTANTE PARA LAS ESPECIES EL OLFATO?

Answers

El olfato es vital para la supervivencia de la mayoría de humanos y animales, ya que les permite rastrear alimentos y agua, encontrar pareja e incluso comunicarse.

Explanation:

una pregunta porque puedes hablar español si esto es de ingles este Braylin

Why do you think genetic orders do not completely disappear from the human population, even though there are great researchers and excellent health care? PLS HELP

Answers

Answer:

Because we have not yet figured out to successfully remove/change genes on a large scale. Once we do, genetic disorders will no longer be as prevalent.

Explanation:

Braintliest please.

Two nucleotide sequences found in two different species are almost exactly the same. What does this suggest about these two species?

A.They contain exactly identical DNA
B.They may have common ancestor
C.They are evolving into same species
D.They have the same number of mutations

Answers

Answer:

B.They may have common ancestor

B! Hope this helps you!

PLS ANSWER NOWWWWWWWWWWWWWWWWW

Answers

Sunlight - 9th down > Needed to chemically change water...

Population - 10th down > More than one organism of the same species...

Community - 3rd down > Different populations in a specific area...

Trophic Pyramid - 4th down > Shows the energy transfers of populations...

Food Web - 6th down > Shows the feeding relationships of the food chains...

Decomposer - 8th down > Helps dead things to chemically change...

in which country green rain fell upon?​

Answers

Answer:

In India ,Kolkata green rain fell.

I hope it helps

have a great day

[tex]#Liliflim[/tex]

Answer:

The country in which green rain fell upon is

India.(kolkatta)

Question #2: Hint - may help to use internet searches *
1 point
2. Which of the following is NOT evidence that supports
Earth's spherical shape? (1) photographs taken from
outer space (2) ships appearing to sink as they
sail past the horizon (3) the changing seasons
(4) the similarities in gravity at sea level all over Earth
Option 1
Option 2
Option 3
Option 4

Answers

Answer:

2

Explanation:

Though the effect of ships disappearing over the horizon is due to its spherical shape, it could also be used evidence for objects falling off the "edge" of a flat, planar-shaped earth.

How will hormone travel to its target organs?

A. Carried by neurons

B. Sweat glands

C. Carried by the blood

D. Carried in the digestive tract

Answers

Answer:

the answer is C no

Explanation:

It is the ans

Answer:

c

Explanation:

endocrine glands hormones directly into bliidstream

Jawless fish were Earth's first

Answers

Answer:

jawless fish were earth 's first arthropods

Explain what happens to an animal cell when it removed from an organism and placed into distilled water

Answers

Answer:

I think it has to do with osmosis

Explanation:

Osmosis is the process of having water pass from a low concentration medium to a high concentration one, given that the barrier (membrane) is semi-permeable.

When a cell is placed into distilled water, hypertonic solution takes place.

A cell may contain many solutes so it is considered hypertonic when compared to distilled water which is hypotonic So in this case, when a cell is placed in distilled water, water moves from outside of the cell to the inside leading to swelling of the cell.

The outcome of protein synthesis is ______.
A. A glucose molecule

B. An mRNA molecule

C. A protein

Answers

Answer:

C. A protein

Explanation:

The outcome of protein synthesis is a protein.

The process of protein synthesis is crucial to cellular function. Protein synthesis is the procedure used by cells to generate proteins. Thus, option C is correct.

What is the role of protein synthesis in the cell?

Protein synthesis, sometimes referred to as protein biosynthesis, is an essential biological process that occurs inside of cells to replace lost proteins (due to export or degradation) with new proteins.

Proteins have a wide range of vital biological functions, including those as enzymes, hormones, and structural proteins.

Cells are made of proteins, and the word “synthesis” simply means “to make.” Thus, the process of producing proteins is known as protein synthesis.

Creating a polypeptide, or protein consisting of a chain of amino acids, is the sole goal of protein synthesis. Keratin, a protein, is produced in the cells of the hair follicle.

Therefore, The outcome of protein synthesis is a protein.

Learn more about protein here:

https://brainly.com/question/18800216

#SPJ6

Amoebas make exact copies of themselves. Therefore, they reproduce
A. asexually buy the process of MEIOSIS

B. sexually by the process of MITOSIS

C. sexually by the process of MEIOSIS

D. asexually by the process of MITOSIS

Answers

Answer:

D.

Explanation:

You can rule out B and C because offspring produced sexually are not identical to their parents. The amoebas reproduce by binary fission, which is a form of asexual mitosis.

Answer:

D. asexually by the process of MITOSIS

Explanation:

Mitosis is a form of asexual reproduction in simple living organisms. The outcome of each cell cycle is two identical cells. Mitotic checkpoints happen at certain stages of mitosis to ensure that each cell receives the same amount of DNA.

explain the difference between a prokaryotic cell and a eukaryotic cell.​

Answers

Answer:

Eukaryotic cells have a membrane-bound nucleus.

Prokaryotic cells do not. The nucleus is where Eukaryotic stores their genetic information.

Which of the following is NOT a characteristic of life?
A.Made of one or more cells
B.Movement
C.Requires Energy
D.Adapts over time

Answers

i think it’s A it’s sounds the most accurate but i’m not sure .

Answer:

The answer should be C

Explanation:

Life is made of cells, life moves and also adapt over time...but I don't think it requires energy

Question 12 of 30
Which of the following best describes the difference between an adaptation
and adapting?
A. An adaptation takes place during an individual's lifetime. Adapting
takes place over many generations.
B. An adaptation is a genetic trait that improves an individual's
chances of survival. Adapting is changing behavior or appearance
in response to experience.
C. An adaptation is a learned behavior. Adapting is a genetic
process.
D. Adapting improves an individual's chances of survival. An
adaptation is a change made in response to experience.

Answers

Answer:

bbbbb

Explanation:

is Bobby for sure because b is the only one that make sense

Proteins secreted by Gram-negative cells face multiple obstacles, including _____. Multiple choice question. moving across the periplasmic space underlying the thick peptidoglycan layer of the cell wall moving across the plasma membrane moving across the plasma membrane and the thick peptidoglycan layer of the cell wall moving across both the plasma membrane and the outer membrane

Answers

Answer:

moving across both the plasma membrane and the outer membrane

Explanation:

Gram-negative bacteria are bacteria that have a plasma membrane, a thin peptidoglycan layer, and an outer membrane (the space between the plasma membrane and the outer membrane is known as periplasm). Moreover, Gram-positive bacteria exhibit neither outer membrane nor periplasmic space and are surrounded by thick layers of peptidoglycan. Gram-negative bacteria have developed different protein secretion systems (types I–VI and type VIII) in order to secrete proteins into the extracellular space. For such purpose, the XcpQ protein (which is an outer membrane protein from the secretin family) participates in different transport processes in Gram-negative bacteria.

Can someone help with this?

Answers

Answer:

a primary oocyte contains 46 chromosomes, while a secundary oocyte contains 23 chromosomes

Which of the following does NOT affect the flow of groundwater through an aquifer ? a. porosity C. gradient b . chemical weatheringd. permeability

Answers

Answer:

b . chemical weathering

Explanation:

Chemical weathering is not affected the flow of groundwater through an aquifer but affect by the porosity and permeability. The rate of groundwater flow is controlled by two properties of the rock which are porosity and permeability. Porosity is the percentage of void space in a rock while on the other hand, Permeability is the quality of being permeable means able to be penetrated or passed through by a liquid or gas.

How can a mutation get into a population?

Answers

Answer:

Some mutations do not result in changes in the amino acid sequence of the encoded protein and can be described as silent mutations. Other mutations result in abnormal protein products. Mutations can introduce new alleles into a population of organisms and increase the population's genetic variation.

Explanation:

Answer:

Some mutations do not result in changes in the amino acid sequence of the encoded protein and can be described as silent mutations. Other mutations result in abnormal protein products. Mutations can introduce new alleles into a population of organisms and increase the population's genetic variation.

Explanation:

which part of a nucleotide makes it possible for a nucleic acid to be a unique code

Answers

Answer:

RNA nucleotides may also bear adenine , guanine and cytosine bases, but instead of thymine they have another pyrimidine base called uracil (U) . as shown in the figure above, each base has a unique structures with its own set of functional groups attracted to the ring structure...

hiii! ill give brainliest if u answer this :))

Why are enzymes important?

1. They contain the genetic material.

2. They speed up chemical reactions.

3. They bring water into the cell.

4. They help the cell maintain its shape.

Answers

They speed up chemical reactions
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