Angela set out to determine how many genes
control the length of people's eyelashes. She
compared the length of eyelashes from 12 different
people. She measured each person's eyelash by
placing the eyelash on a metric ruler and measuring
the length directly.
What is a possible source of error in her
experiment?
A. She did not collect data from enough
people.
O B. She should have considered the number of
eyelashes on each eyelid in her data
collection.
O C. She may have had a difficult time making
accurate measurements directly.
O D. She did not include a control group.

Answers

Answer 1

The statement 'she did not collect data from enough people' is a source of error in an experiment (Option A).

What is the N sample?

The N sample refers to the number of objects and/or persons tested during an experimental procedure.

The N sample is fundamental for eliminating the source of variation that may lead to errors.

These errors are a consequence of faulty testing of a suitable number (N) sample.

In conclusion, the statement 'she did not collect data from enough people' is a source of error in an experiment (Option A).

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Related Questions

Which of the following best describes natural selection?

A. organisms vary in their physical traits, and some are inherited

B. Organisms compete for food and shelter

C. organisms best suited to their environments are most likely to survive and reproduce

D. Organisms produce more offspring than can survive

Answers

Answer: C

Explanation: according to Darwin, out of the vast no of individuals which compete for a place in the world, only those having advantageous variations survive and reproduce
C remember the key word is natural

which type of specialized cells would be found in an animal’s neuvous system?

Answers

Animal nerve cells are specialized cells called neurons. Depending upon function, these cells can be divided into sensory neurons, interneurons, and motor neurons.

The type of specialized cells would be found in an animal’s nervous system are the cells that transmit signals around the body. The correct option is D.

What is the nervous system?

The nervous system is the part of an animal's body that controls behavior and sends messages to other parts of the body. It is divided into two components in vertebrates: the central nervous system (CNS) and the peripheral nervous system. The CNS houses the brain and the spinal cord.

Neurons are specialized cells found in animals. These cells are classified as sensory neurons, interneurons, or motor neurons based on their function. They transmit signals from the body to the brain and from the brain to the body parts.

Therefore, the correct option is D. Cells that can transmit signals around the body.

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The question is incomplete. Your most probably complete question is given below:

Cells that transport oxygen are found in the blood.

Cells that secrete hormones to trigger cellular responses.

Cells secrete enzymes to break down food.

Cells that can transmit signals around the body.

The probability that an “X” bearing egg will be fertilized by a “Y” bearing sperm is?

Answers

Answer:

100%

Explanation:

true or false
Only animals have a niche.

Answers

Answer:

False

Explanation:

Answer:

True

Explanation:

Write your explanation of the role of genetics in Natural and Artificial Selection. Write on how environmental factors affect the survival based on Natural and Artificial Selection.

Answers

Natural selection is the survival of the fittest. Basically the organisms that best suit the environment they’re in will survive, and the less suited will pass. Artificial selection is when humans intervene and breed plants and animals to have desired traits. Like if one turtle has a longer neck than the other, and the plants are really tall in an area, people might selectively breed them so less turtles are dying of hunger.

The pancreas secretes enzymes and bicarbonate into the a. esophagus c. duodenum e. ileum b. stomach d. jejunum

Answers

Answer:

C. Duodenum

Explanation:

hope this helps!

the answer should be the duodenum

Somebody please help? Thanks​

Answers

Answer:

None

Explanation:

because y is recessive and it needs to be yy to be green so Yy wouldn't wrok

The answer is none


...

describe a chemical reaction

Answers

Answer:

The chemical reactions is a process in which one or more substances, the reactants, are converted to one or more different substances, the products.

Explanation:

.

Answer:

A chemical reaction is a process in which the reactants are converted into one or more different substances. A chemical reaction occurs when certain bonds between the atoms are formed or broken. The substances that are formed at the end of the reaction are called products.

Hope this helps! :)

What hormone carries out hydrolysis? Explain.

Answers

Answer:

the HGH hormone

Explanation:

What is the Florida state lizard (don’t search) just guess

Answers

Its uhm the iguana right?

A student has a test tube that contains 50 mL of water. She wants to add a substance to the water that will cause the test tube to become hot to the touch. Which of the following would be best for her to add to the water?
A.
a substance that produces a gas when it reacts with water
B.
a substance that does not react with water
C.
a substance that releases heat when it reacts with water
D.
a substance that absorbs heat when it reacts with water

Answers

Answer:

the guy above is wrong the actual answer is C

Explanation:

The best for a student to add to the water is a substance that releases heat when it reacts with water. Thus, the correct option is C.

What is an exothermic reaction?

When a chemical reaction takes place, energy is transferred to or from the surrounding in the universe. When the energy is transferred to the surrounding, there is a loss of energy, this reaction is called an exothermic reaction, and the temperature of the surrounding increases during this reaction.

The process of dissolving a substance is exothermic when more energy is released when water molecules bond to the solute particles in the solution than is used to break the solute particles apart. Because, more energy is released than is used in this process, the molecules which are present in the solution move faster, and thus results in an overall increase in temperature.

Therefore, the correct option is C.

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what is the term for the process of cell division that results in the formation of gametes ?​

Answers

Answer:

meiosis

Explanation:

Question C. please... :) And NO FILES I WILL REPORT YOU!

Answers

The best way to describe it would be “the pattern of the graph is constantly changing as it goes thru series of increased and decrease through out the years”

What are the characteristics of vitamins and minerals? (Select 3)
A.They are gained by the body by eating.
B.They are produced inside the body.
C.They help the body get energy.
D.They help your immune system fight disease.

Answers

Answer:

.

Explanation:

Answer: A, C, D. Hope this helps:

Explanation: Open Photo ;)

6. Why does the study of cell membranes lead to a better understanding of cell function?
a. All cell functions occur in the cell membrane.
b. All energy transfers occur at the cell membrane.
C. All cell membranes contain the information for making proteins.
d. All materials needed for cell functions must pass through the cell membrane.

Answers

Answer: d. All materials needed for cell functions must pass through the cell membrane. brainliest?

Explanation:

In fruit flies, the allele for normal-sized wings (W) is dominant to the allele for small wings (w). A fly that has normal wings breeds with a fly that has small wings. Several offspring have small wings, and others have normal wings.

A. What are the genotypes of the 2 parental flies?
Normal wings __________
small wings __________

B. Two flies with small wings produce offspring. What type of wings will the offspring
have? Draw a punnett square to support your answer.

C. A short winged fly can be described -using words as what?

D. What type of inheritance is this called?

Answers

Answer:

A. Normal Wings= Ww, Small Wings=ww

B. All offspring will have short wings because short wings trait is recessive.

w. w

______

w| ww |ww|

————-

w|ww |ww |

______

Explanation:

Trees in a temperate deciduous forest compete for all of the following EXCEPT -
A sunlight.
B shelter.
C soil.
D water.

Answers

Answer:

B

Explanation:

Trees needs sun, soil (nutrients), and water to grow and become strong.

I hope this helps ^-^

The answer is b hope this helps trees need soil water and sunlight to grow

What valuable information was gained from Mendel's dihybrid crosses?

Select all that apply.

1. Not all traits are controlled by genes. In most plants, genes only determine traits that affect
flower color.

2. Statistical and probability methods can be used to determine how likely an offspring is to inherit
certain traits.

3. Genes are inherited differently in plants than they are in animals.

4. Inheritance of one trait does not affect inheritance of another.

Answers

2 and 3 i’m pretty sure according to my calculations it’s 6c6

Mendel's dihybrid cross proves that the inheritance of one trait does not affect the inheritance of another trait. Hence, option 4 is correct.

What is a dihybrid cross?

When two different traits are crossed together then it is called a dihybrid cross. These two different traits are regulated by two different genes.

In Mendel's dihybrid cross, he did cross between round yellow and wrinkled grees. There are two traits, color, and shape. In the F1 generation, all seeds were round yellow but they were heterozygous. Round shape and yellow color are dominant traits.

Then he self-pollinated F2 generation and found four types of seeds that were round yellow, round green, wrinkled yellow, and wrinkled green in the 9:3:3:1 ratio. The cross is attached in the image below.

Inheritance of one trait does not affect the inheritance of another trait. Hence, option 4 is correct.

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correct answer gets brainiest. and i’m telling u. if u guess or leave a link, ur getting reported and that’s not a threat

Answers

The correct answer is D

Help please :) thank u

Answers

Answer:

!! neither mechanical nor chemical digestion

Why is the success of a mutation dependent on environmental conditions?


PLEASE HELP QUICK!!!

Answers

the mutation can only be passed down in the environment is in the favor of the gene (natural selection)

ex. dark haired mice only surviving on dark lava rock while the white mice on the dark lava rock are getting killed.

What was the result of the Reconstruction Amendments (the Thirteenth, fourteenth, and fifthteenth Amendments)?

Answers

Slavery was abolished and voting rights were extended to all male citizens. The Thirteenth Amendment (ratified in 1865) abolished slavery. The Fifteenth Amendment (ratified in 1870) extended the voting right to all male citizens without discrimination in terms of race, color, or previous servitude.

The weight of astronaut on the moon will be
A) Less because the moon has less mass
B) Less because the moon has more mass
C) More because the moon has less mass
D) More because the moon has more mass

Answers

Answer:

A

Explanation:

The gravity of a body increases with its size. The moon is smaller than the Earth, so an astronaut will weigh less on the moon than they will on Earth. Good luck ^^

Explanation:

A because im big brain

what is a similarity of an ecosystem and a habitat

Answers

Answer:

Habitat and ecosystem are two ecological terms.Both include living organisms. Organisms live in both systems.

Hope this helps!

Answer:

Both include living organisms. Organisms live in both systems

Explanation:

Answered by NONE other than the #QUEEN herself aka #DRIPPQUEENMO

HOPED THIS HELPED!!

Plz HELP!! where does respiration, the process of releasing energy from combination of oxygen and glucose, occur? A. Cells B. Bronchi. C. Pharynx. D. Nose

Answers

Answer:

 A

Explanation:

     

The different forms of the beef cattle color gene are called_

Answers

The answer is right there click on it 271 the beef is colored red

The different forms of the beef cattle color gene are called "alleles"

What are alleles?

Alleles are alternative versions of a gene that arise from mutations and are located at the same position on a chromosome.

In the case of beef cattle, the color of the animal is determined by the interaction of multiple genes, including the color gene. The color gene can have different alleles that influence the color of the animal's coat. For example, one allele may result in a black coat color, while another allele may result in a red coat color.

The combination of alleles that an animal inherits from its parents determines its genotype, which in turn determines its phenotype or observed traits. Therefore, the different alleles of the beef cattle color gene can result in different coat colors, patterns, and markings in the cattle population.

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please help asap

Summarize how atmospheric pollution affects living organisms and the environment by completing the chart below:

Answers

Answer:

humans- exposes them to the ultra-violet rays of the sun causing cancer

animals- causes the pollution of gases found within the atmosphere

plants- polluted atmosphere contains poisonous gases that pour down as acid rains causing soil pollution and depletion on nutrients for plants

Environment- causes global warming

What does the phrase of sunshine and of song mean in the poem?
A.
memories
B.
weather
C.
happiness
D.
singing

Answers

Answer:

a

Explanation:

Tropical rainforests have the greatest biodiversity of any type of land ecosystem how does biodiversity contribute to the sustainability of an ecosystem

Answers

Biodiversity contributes to the sustainability of an ecosystem in ways such as biodiversity, ecosystem stability, ecosystem resilience, nutrient cycling, pollination, and medicinal properties.

Biodiversity is crucial for the sustainability of an ecosystem as it plays a significant role in maintaining the functioning of ecosystems and providing a range of ecological services. In tropical rainforests, which have the highest biodiversity, the presence of numerous species of plants, animals, fungi, and microorganisms contributes to the sustainability of the ecosystem in the following ways:

Ecosystem Stability: Biodiversity helps to maintain the stability of an ecosystem by providing a balance between predator and prey populations, nutrient cycling, and decomposition.

Ecosystem Resilience: The greater the biodiversity of an ecosystem, the more resilient it is to disturbances such as climate change, natural disasters, and human activities.

Nutrient Cycling: Biodiversity helps in the efficient cycling of nutrients in the ecosystem. Different species of plants and microorganisms play a role in decomposing organic matter, recycling nutrients, and maintaining soil fertility.

In summary, biodiversity is essential for the sustainability of ecosystems. It provides ecological services that are critical for maintaining the functioning of the ecosystem and contributing to human well-being.

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refers to the attitudes, behavior, and activities that are socially defined as appropriate for each sex and are learned through the socialization process. OA) Sexual role B) Gender identity OC) Gender role D) Sexual identity​

Answers

Answer:

Gender Role

Explanation:

How people already see how people should act. Example- Be a man.

Answer:

b. sex

Explanation:

edge 2021

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