Answer:
False
Explanation:
Mendel realized that the F2 had a phenotypic ratio 3:1, meaning 3/4 = 75% were yellow and 1/4 = 25% green.
Mendel observed that the F1 expressed only one of the alternative variants (in this case, only yellow seeds appeared), while the other variant (green) disappeared. Mendel named dominant the expressed variant. Mendel allowed auto pollination and observed that in the second generation, F2, the other disappeared variant reappeared. Both alternative variants were present in the F2. Mendel named recessive the second alternative variant.
Mendel thought that hereditary traits determined by discrete factors were the possible explication for these phenotypes. These factors should have been present in the F1 in pairs. One of them came from one parental plant, and the other factor came from the other plant. These factors then separated again when sex cells were produced, giving two types of gametes, each with only one factor.
Mendel concluded that each individual (plant) has a pair of factors (alleles), one for each trait (yellow and green) and that the pair separates (segregates) during the formation of the gametes. This conclusion is known as the segregation principle (First Mendels´ Low).
2 Pretest: Unit 3
Question 1 of 32
The cell membrane controls what enters and leaves the cell. Which of the
structures in the diagram below is the cell membrane?
The cell membrane controls what enters and leaves the cell the structures below in the diagram depicetd as C below is the cell membrane and the function is to protect the cell from the outer harmful substances.
The cell membrane, also known as the plasma membrane, is a thin, semi-permeable layer that surrounds and encloses the contents of a cell. It separates the cell's internal environment from its external environment, and controls the movement of substances in and out of the cell. The cell membrane is composed of a double layer of phospholipid molecules, which have a hydrophilic (water-loving) head and a hydrophobic (water-fearing) tail.
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Which statements best explain how students would know if a chemical reaction occurred during the steel wool demonstration? Select TWO correct answers from the choices below.
Answer:
When the heat energy releases and formation of iron oxide.
Explanation:
When the heat energy releases and formation of iron oxide are the indications that chemical reaction takes place. during the steel wool demonstration. During the steel wool demonstration, heat energy released when the iron combine with oxygen forming solid iron oxide. So we can conclude that release of heat energy and formation of iron oxide tells us that the chemical reaction takes place.
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How do electronegativity, polarity, and ph all relate and effect each other? I know moderators, you will be reported if you give a link or wasteful answer.
Answer:Electrons in a polar covalent bond are shifted toward the more electronegative atom; thus, the more electronegative atom is the one with the partial negative charge. The greater the difference in electronegativity, the more polarized the electron distribution and the larger the partial charges of the atoms.
Explanation:
Which scientist showed that organisms do not grow spontaneously in beef broth?
Answer:
Louis pasteur
Explanation:
hope it helps
Answer:
Your answer would be D. Louis Pasteur
Explanation:
A benefit of a diet high in carbohydrates is Group of answer choices increasing muscle glycogen storage to prevent muscle fatigue. changing carbohydrates into fat in the muscle to prevent muscle fatigue. decreasing lactic acid build-up to prevent muscle fatigue. changing carbohydrates into protein in the muscle to spare muscle protein. changing carbohydrates into fat in the muscle to spare muscle glycogen.
Answer:
what is the question
A benefit of a diet high in carbohydrates is increasing muscle glycogen storage to prevent muscle fatigue.
What are carbohydrates?Carbohydrates are a type of macronutrient composed of one or more subunits called monosaccharides (eg. glucose).
Glycogen is a polysaccharide composed of many subunits of glucose monosaccharides.This polysaccharide (glycogen) serves as a storage of energy in different species of animals.In conclusion, a benefit of a diet high in carbohydrates is increasing muscle glycogen storage to prevent muscle fatigue.
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Help, please!
Can frogs live in salt water?
Answer:
no they can not live in salt water
A population of beach mice have been
introduced to a new disease. This
disease has killed off most of the
population. Some mice in the
population were better suited and
survived the disease, living to
reproduce. The population over time
has grown resistant to the disease.
This is an example of?
(1 Point)
*
Artificial Selection
Natural Selection
Selective Breeding
Why is capillary action useful in nature?
it allows water to climb the vessels in plants
it allows water to cool down or heat up slowly
it helps water dissolve substances
it assists in forming surface tension on bodies of water
Answer:
D
Explanation:
Answer:
D
Explanation:
The light reactions can only occur in the absence of light.
A. True
B. False
Answer:
false
Explanation:
the light reactant needs light
PLS HURRY AND NO LINKS PLEASE
If a long tail is a dominant characteristic, in which case is the characteristic of a long tail definitely expressed?
A when both parents have a long tail
B when neither allele contains instructions for a long tail
C when at least one parent has a long tail
D when at least one allele contains instructions for a long tail
Answer:
b
Explanation:
Answer:
the correct answer is d i took the test.
Explanation:
Item 5 What is the role of a generator in producing electricity? The generator stores electrical energy for later use in homes and businesses. The generator spins the turbine to create mechanical energy. The generator transforms the mechanical energy of the turbine into electrical energy. The generator reverses the turbine to create electrical energy.
Answer:
The generator transforms the mechanical energy of the turbine into electrical energy
Explanation:
Electricity generator is a device that is used in generating power supply which can be used in industries, homes and for commercial and private purposes.
It operates by converting mechanical energy into electrical energy for the use in an external circuit. mechanical energy can be obtained from steam turbines, internal combusting energy, gas and water turbines and it can be obtained through the rotating shaft.
The capacity of each generator determines the amount of energy it can supply to a given place.
If producers were removed from the environment would this cycle be able to continue?
A. Yes
B. No
Which number is labeling the part of the digestive system that releases acid and mixes the food to break it down?
Answer:
D
Explanation:
the stomach releases strong acid to digest and break down the food
The body obtains sugar from food. Which system most directly affects blood sugar levels?
ton
Digestive system
Explanation:
The sugar goes straight from the digestive system into the bloodstream after an individual consumes and digests food.
However, glucose can only enter cells if enough insulin is also circulating in the bloodstream. Insulin is a protein that makes cells ready to receive glucose
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Answer:
C would be the answer to your answer
Hope this helps :)
Explanation:
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Heh- no worries i gotchu XDHomologous: Similar in position, structure, and evolutionary origin but not necessarily in function.
With this being said the answer is: "B" A bird's wing bone!, it's similar to a human's arm bone but it doesn't do the same thing as a human's arm bone! I apologize if i'm wrong//You're welcome if i'm correct((-Side Note-)): If you don't mind if my answer is correct can you pls mark my answer brainliest? Thank you ^v^
I hope you have a great day ^v^"Any reaction that is not intended is called
What does bone marrow produce?
A. neurons
B. food
C. blood cells
D. more bone
Answer:
Blood cells
Explanation:
Si mate
All of living and noliving things in a particular area
Which of the following best describes the relationship between the nucleus and the cytosol?
A. The cytosol is a fluid that fills the inside of the nucleus.
B. The nucleus is an organelle that synthesized the cytosol.
C. The nucleus is an organelle surrounded by the cytosol.
D. The cytosol is an organelle that is attached to the nucleus.
Answer:
i would put c
Explanation:
The nucleus is an organelle surrounded by the cytosol best describes the relationship between the nucleus and the cytosol.
What is the function nucleus in cell ?The major function of the nucleus is to store a cell’s genetic contents, or DNA and it helps in cell growth, their function, and reproduction, nucleus organelle present in eukaryotic cells, prokaryotic cell does not contain nucleus.
It is called as the “brain” of the cell as it controls the growth and reproduction of the cell, it is the largest and prominent organelle in the cell, it possesses smaller organelles in it, which help in the regulation and manipulation of the hereditary information.
Every eukaryotic cell have a single nucleus but certain cells have more than one nucleus or no nuclei at all like red blood cells don’t have a nucleus while muscle cells have multiple nuclei.
Nucleus of eukaryotic cell have following components such as Nuclear Envelope, Nuclear Pores, Nucleoplasm, Chromatin, Nucleolus.
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how can you separate iron filings from sand through which process
Answer:
Process called magnetic separation
Explanation:
The magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using magnetic force.
This method is also used to separate the mixture of sand and iron fillings as iron is attracted by magnet.
Answer:
Use a magnet to separate the iron filings from sand since iron is magnetic
What is the main function of the endocrine system?
A. secrete hormones
B. send nerve impulses
C. produce blood cells
D. produce DNA
Answer:
A. secrete hormones
Explanation:
Endocrine glands release hormones into the flowing bloodstream, which lets them travel to cells in other body parts. These endocrine hormones help control mood, growth & development, the way our organs work, metabolism, and reproduction.
Answer:
A secrete hormones
Explanation:
Endocrine glands release hormones into the bloodstream. This lets the hormones travel to cells in other parts of the body. The endocrine hormones help control mood, growth and development, the way our organs work, metabolism , and reproduction.
hope it helps
please answer this for me
Answer:
I think the answer would Be B
answer as fast as posible
What are the three things the plant needs in order to do photosynthesis?
A. sunlight, oxygen, and carbon dioxide
B. sunlight, carbon dioxide, and water
C. sunlight, oxygen, and water
Answer:
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight
so, B
it's sunlight carbon dioxide and water
Pls help me will give points
Answer:
D
Explanation:
D is my best bet because most have cilia and flagella to help move them around their environment.
A is for multicellular organisms, B occurs only in some unicellular but not all, C is for multicellular mostly (some unicellular can have it), but D applies to majority of unicellular (almost all have some sort of mechanism for movement)
Which is an example of an ecosystem change that resulted from human activity?
Answer:
Your welcome! :)
Explanation:
An example is:
Deforestation occurs when a forest or stand of trees is removed, converting the land to a nonforest use. This changes the ecosystem drastically and results in a dramatic loss of biodiversity.
♡♡♡
Answer:
chaparral shrublands turning to grass due to frequent fires
Explanation:
I just took the quiz and it's right
What was the second design of cellphone
Answer:
MOTOROLA MICROMAX 9800X was the second design of cellphone.
Explanation:
mark me as brainliest if it helped you
Assertion: The body of paramoecium is flexible.
Reason: They have specialized cells called heterocysts. 1
a. Both assertion and reason are true, and the reason is the correct explanation
of the assertion.
b. Both assertion and reason are true, but the reason is not the correct explanation
of the assertion .
c. Assertion is true but reason is false.
d. Both assertion and reason are false
what is the process of transformation?
infecting bacteria with bacteriophages
adding foreign DNA to a bacterial cell
copying foreign DNA into RNA
causing mutations in viral genetic material
