Which experiment would most likely contain experimental bias? A. A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature. B. A student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each. C. A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions. D. A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.

Answers

Answer 1

Answer:

A lab performs a test by giving bacterial colonies the same amount of different ... A student tests the attraction of bees to flowers by placing four different flowers ... A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature.


Related Questions

What are some DISadvantages of interdependence of animals and plants? (at least 3 examples)

Answers

Answer:

1. Disease

2. If a new animal species were to be introduced

3. If a new plant species were to be introduced

Explanation:

1. Because of the closeness between plants and animals some disease that affect one species can affect the other.

2. If a new species was introduced it would affect the vegetation (by eating it or by ruining it when walking over it), which can create a problem for animals that rely on those plants for food, mainly herbivores.

3. If a new species of plant was introduced it could be poisonous to animals which could kill them or it could grow larger than small ground shrubs and cover them from the sun, therefore depriving them of sunlight for photosynthesis.

Quantity that does not change

Answers

Answer: Constant

Explanation:

When a quantity does not change over time, it is called zero rate of change.

_________ was the first manmade element. It was first created as an
accidental byproduct in the first nuclear reactors. *

A. Gold

B. Silver

C. Technetium

D. Plutonium

E. Americium

F. Californium

Answers

I believe it’s D. Plutonium
The correct answer is plutonium

write Down Different Types Of Respiration ???? In Detail................................

Answers

Answer:

Three types of respiration include internal, external, and cellular respiration. External respiration is the breathing process. It involves inhalation and exhalation of gases. Internal respiration involves gas exchange between the blood and body cells

Explanation:

hey here is your answer

Answer:

external respiration:involves inhalation and exhalation of gases.

internal respiration:involves gas exchange between the blood and body cells

Cellular respiration:involves the conversation of food to energy .

Aerobic respiration :is a cellular respiration that requires oxygen  while anaerobic respiration does not require oxygen.

Select the correct answer.
Jordon needs to know how many grams of magnesium he has for an experiment. Which of the following tools would give
him the most precise data?
pipette
volumetric flask
o electronic balance
O temperature probe

Answers

an electronic balance

The study of environmental issues is underpinned by the understanding of the concept of an environmental value system (EVS). Choose the sentence which best describes an EVS. Your answer: The amount of financial profits created by the exploitation of resources available in an environment. An ideological doctrine imposed on an individual by the government and supported by appropriate regulations to manage environmental issues. The material worth placed on the environment by and individual or a group. A set of paradigms or views shaped by one's background, culture and education which determine the way an individual or a group evaluate and find solutions to the existing environmental problems.

Answers

Answer:

A set of paradigms or views shaped by one's background, culture and education which determine the way an individual or a group evaluate and find solutions to the existing environmental problems.

Explanation:

Environmental value system (EVS) is a view of a subject that transforms the way an individuals or the society thinks, view and evaluate environmental issues.

Their ideas and views is influenced by cultural, economic and socio-political background.

Factors such as education, media and religious doctrines are inputs in ESV that enhance perception.

Information are processed and changes perceptions of the environment by an individual and also changes decisions.

Define lactobacillus​

Answers

Answer: Hi!

An lactobacillus is a rod-shaped bacteria that produces lactic acid from the fermentation (the breaking down) of carbohydrates. Carbohydrates (also known as carbs) can be found in most food made with bread or dough along with some other foods with starches, like breads, pasta, noodles, etc.

Hope this helps!

[tex]\huge{\underline{\tt{\red{lactobacillus-}}}}[/tex]

It is a rod shape bacteria which helps in the formation of curd .

Hope it helps

A box is pushed across 10m by a force of 40 N in 10 seconds.calculate the power.​

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{40 \: watt}}}}}[/tex]

Explanation:

Given,

Distance ( D ) = 10 m

Force ( F ) = 40 N

Time taken ( T ) = 10 seconds

Calculating the power:

[tex] \boxed{ \sf{power = \frac{work}{time} }}[/tex]

⇒[tex] \sf{power = \frac{force \times distance}{time} }[/tex]

⇒[tex] \sf{power = \frac{40 \times 10}{10} }[/tex]

⇒[tex] \sf{power = \frac{400}{10} }[/tex]

⇒[tex] \sf{power = 40 \: watt}[/tex]

Hope I helped!

Best regards!!

If second and third hypotheses were formulated for the relationship
between temperature and the pressure of a gas and are tested
along with the first hypothesis, then these would be referred to as_
working hypotheses.

Answers

Answer:

The answer is Multiple

A segment of DNA has one stand with the sequence base as
TCGCGTATCGTT, what would be the complementary stand
of DNA?​

Answers

AGCGCATAGCAA if im right :)

Answer:

AGCGATAGCAA

Explanation:

Adenine → Thymine (A → T)

Thymine → Adenine (T → A)

Cytosine → Guanine (C → G)

Guanine → Cytosine (G → C)

With that being said, you just switch the letters up to get the correct answer. Does this make sense? You're just switching the letters.

Is 0.3 concentration high or low and why?

Answers

0.3 is low concentration..

"Immediately prior to ventricular systole, pressure in the aorta is about" "The Frank-Starling law of the heart states that"

Answers

Answer:

80 mm Hg

Explanation:

Immediately prior to ventricular systole, pressure in the aorta is about 80 mm Hg. This can be explained by the Frank-Starling Law which states that the stroke volume of the left ventricle will increase as the left ventricular volume increases due to the myocyte stretch which tends to cause a more forceful systolic contraction. This applies in the case that all of the other factors remain the same during that time.

Why do you think people believe some theories even if they´re not supported by scientific evidence?

Answers

Answer:

The correct answer would be

1. to understand and have certainty

2. to have control and sense of security.

3. to maintain positive image of one self

Explanation:

Theories that can not be proved or tested or have no scientific evidence about them should not be consider valid, however, some people believe in these theories.

The reason behind these false believe, according studies could be any of these reasons:

1. to understand and have certainty - to understand and have a explanation to satisfy their curiosity.

2. to have control and sense of security - if there is something bother sense of security of individual or group of people.

3. to maintain positive image of one self - to portray them not responsible for any immoral happening or deeds.

Question 2 of 10
Which describes the number of people who die per one thousand individuals
in a population per year?
A. Birthrate
B. Carrying capacity
C. Space availability
O D. Death rate
SUBMIT
HELP ME

Answers

Answer:

brithrate

Explanation:

The gulf stream current shown here makes the water of the north atlantic

Answers

warmer is the answer

Which type of biological agent needs a host to replicate and spread, is costly and difficult to grow in large quantities for terrorism purposes, and does not respond to antibiotic treatment?

Answers

Answer:

Viruses are organisms which require living cells in which to

replicate. They are therefore intimately dependent upon the cells of the host

which they infect.

Name 6 functions of your skin

Answers

Answer:

The skin performs six primary functions which include, protection, absorption, excretion, secretion, regulation and sensation. The skin functions as our first line of defense against toxins, radiation and harmful pollutants.

Protection, absorption, excretion, secretion, regulation, and sensation

What questions does Hugh have after analyzing his daughter’s DNA?

Answers

Answer:

Explanation:ejtgdrklh jkrdthgnbjmzdkrfmc,v hnnmv , fcvj mkg, v rfdv

An ecologist collected climate data from two locations. The graph shows the monthly average temperatures in the two locations. In Location A, the total yearly precipitation is 273 cm. In Location B, the total yearly precipitation is 11 cm. Whats the answer?

Answers

Answer:

More organisms are present on location A.

Explanation:

Due to more yearly precipitation, there is more vegetation present on location A. Due to the presence of this vegetation, more organisms are present because there is more food available for organisms as compared to location B. Due to less precipitation, there is less or no vegetation is present on location B and organisms are present in less number due to harsh environmental conditions and no food availability for organisms.

List five such bonds or interactions. Select the five correct answers. Select the five correct answers. coordination bond peptide bond metallic bond hydrophobic bond glycosidic bond hydrogen bond disulfide bond ionic bond phosphodiester bond.

Answers

Provided question is incomplete as proper information is not given, however, the complete question is as follows:

Several different kinds of bonds or interactions are involved in generating and maintaining the structure of proteins. List five such bonds or interactions.

Select the five correct answers.

Answer:

The correct answer is:

peptide bond

hydrogen bond

ionic bond

disulfide bond

hydrophobic bond

Explanation:

In protein structure their are different type of bonds present in between different atoms of amino acid to forming or maintaining the protein and its structure. These bonds are as follows:

Peptide bond: These bonds are present in all amino acids,  joins monomers in primary structure

Hydrogen (not between R groups): these are bonds present in all amino acids, these bonds are responsible for the secondary structure .

Hydrophobic:  leucine could be involved, These type of interactions are responsible for tertiary and Quaternary structure

Ionic: glutamate could be involved in such bond, these are also responsible for the tertiary and Quaternary structure

Disulfide: cysteine could be involved in such bonding, tertiary and Quaternary structure

What section of a lab report should be phrased in an "If (cause), then (effect)" statement?
le

Answers

Answer:

The HYPOTHESIS

Explanation:

In an experiment, the formulation of the hypothesis is a critical part of the scientific method. The hypothesis is testable explanation given after making an observation in an experiment. In other words, an hypothesis is a predictive statement given that is subject to testing via experimentation.

The essence of formulating an hypothesis is to relate the effect of a possible solution on an observed problem. The "hypothesis" section of a laboratory report is usually identified by the use of an IF and THEN phrases in the statement. IF represents the cause, while THEN represents the effect. For example, a hypothesis can read; If plants are placed under white light (cause), then they will grow faster in height (effect).

Organic molecules are sometimes found within meteorites that crash into Earth. Which meteorite condition in space is similar to what most likely was present in Earth's early atmosphere?

Answers

Answer:

presence of inorganic molecules

Explanation:

took the test

Fill in the blanks with appropriate words

a. In.............. animals, body temperature changes according to the surrounding temperature.

b. In.............., fore limbs are modified into wings.

Answers

Answer:

a) cold blooded

b) arboreal

a) Cold blodded
b) Birds
Hope it helps :)

why does a person need protein in their diet? ​

Answers

Answer:

The body needs protein to build and repair tissues to make hormones, enzymes, body chemicals e.t.c.

The body also uses protein as a building block of blood , bones, skin , muscles, cartilage e.t.c.

Explanation:

Anthony designed an experiment to answer
the following question: How does the
temperature of water affect the time it
takes for a sugar cube to dissolve?
Multiple answers! Which things should
Anthony keep the same in his experiment?


A. The amount of water

B. The temperature of the water

C. The size of the sugar cubes

Answers

Answer:

I think he should keep the size of the sugar cubes.

Sugar dissolves faster in warm water, Anthony should keep the amount of water and the size of the sugar cubes the same

In many species of Drosophila, flies of any genotype that are reared in a cold environment tend to be larger than flies of the same genotype raised in a warm environment. Is this an adaptation

Answers

Answer:

It is an adaptation.

Explanation:

An adaptation is classified by the mutations seen in a creature in order to survive in a specific climate. If the fly is bigger in the colder climate, it is has adapted to withstand harsher temperatures than that of the warmer climate fly.

how do some producers and consumers rely on the light from the sun

Answers

Answer:

producer rely for photosynthesis and consumers for vision and growth

2. Without any fossil fuel consumption, which parts of the
cycle have improved their carbon levels in comparison to
previous data? Which sections of the cycle have improved
from the previous levels you have recorded but still are
increasing their carbon levels?

Answers

Answer:

Please see below

Explanation:

There is noticeable improvement in the atmosphere part, the surface of the ocean as well as the deep ocean parts with regards to carbon levels. The ocean surface section of the cycle has shown improvement relative to previously recorded levels.

The immediate source of energy that powers a cells activities is ?

Answers

Answer:

Food

Explanation:

The immediate source of energy that powers a cell's activities is adenosine triphosphate. food.

Where does our energy from from?

Answers

Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix. These sources originate mostly in our local star, the Sun. Electricity falls into its own category because it's an energy carrier and not a primary source.
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