According to the data in the table, what percent of the elodea cells is water? Explain how you arrived at this conclusion.
Answers
Answer:
99%
Explanation:
at a salt solution concentration of 2%, plasmolysis first started to occur. So the other 98% in the "solution" would have just been water. Since water inside cells needs to be greater than the amount of water outside the cells, we can say that the amount of water inside the elodea cells was 99% so that it can allow hypertonic plasmolysis to occur.
good luck in honors bio>.<
Related Questions
Explain the production of urine, include the processes of Ultra filtration and selective reabsorption.
Answers
Answer:
Urine Is 95% Water
Explanation:
The Glomerulus Filters Water and Other Substances from the Bloodstream
The Filtration Membrane Keeps Blood Cells and Large Proteins in the Bloodstream
Reabsorption Moves Nutrients and Water Back into the Bloodstream
. Waste Ions and Hydrogen Ions Secreted from the Blood Complete the Formation of Urine
Mass measures the amount of ______ in a substance
or an object.
a matter
b space
c gravity
d vapour
Answers
Answer:
theianswer to this is A. Matter
How does the structure of DNA explain chargaff's rule?
Answers
Answer:
Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio (base pair rule) of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine
Chargaff's Rule explains that in the natural DNA, the total number of guanine equals to the number of cytosine and the total number of adenine equals to the number of thymine. This tells about the base pair composition of DNA molecule.
What is Chargaff's rule?Chargaff's rule states that in the DNA molecule of any species or organism, the total amount of guanine residues should be equal to the amount of cytosine residues and the amount of adenine residues should be equal to the amount of thymine residues. A stoichiometric ratio of 1:1 of purine and pyrimidine bases i.e., A + G = T + C should be fulfilled.
Chargaff's rule describes the ratio of the various nitrogenous bases present in the DNA molecule. It aids in the determination of the structure and composition of DNA in living organisms. It is constant for a species.
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1) As altitude increases, what happens to the atmospheric temperature in the following layers:
Troposphere:
Stratosphere:
Mesosphere:
Thermosphere:
Answers
Answer:
troposphere like and comment
Each trait of a plant is determined by
one gene
one dominant gene
a pair of genes
an allele
Answers
Answer: an allele .
Explanation:
Crossing-over occurs
a. during prophase 2.
c. during prophase I.
b. during fertilization.
d. at the centromere
Answers
Internets prove: Crossing over occurs only during prophase I.
The complex that temporarily forms between homologous chromosomes is only present in prophase I, making this the only opportunity the cell has to move DNA segments between the homologous pair.
how can pioneer species benefit the whole biological community?
Answers
Explanation:
"Over hundreds of years these “pioneer species” convert the rock into soil that can support simple plants such as grasses. These grasses further modify the soil, which is then colonized by other types of plants. Each successive stage modifies the habitat by altering the amount of shade and the composition of the soil."
How do fungi and plants differ?
Answers
Answer:
Option 2, i hope that helps instead of my last answer, lol
Answer:
Explanation:
One of the main differences between plants and fungi is that fungi have chitin as a component of their cell walls instead of cellulose. ... Fungi absorb all the nutrients they need from the soil unlike plants which require chlorophyll to conduct photosynthesis.
Hopes this helps tbh-
How did the invention of the microscope contribute to knowledge about 1p living things?
Answers
Answer:
It made it possible for people to discover and learn about cells.
Explanation:
The cell is the basic unit of structure and function of all living beings. A cell can also be defined as a morphological, functional, and reproductive unit of all living beings.
Every living organism is made up of one or more cells. All cells are created from an existing cell. A cell is the smallest unit that has all the characteristics of life. A set of cells of similar or the same appearance, embryonic origin, and function is called tissue.
The science that studies the cell is called cytology. There are organic and inorganic compounds in the cell. Of the inorganic compounds, water and salts are the most common. Organic compounds in the cell contain carbohydrates, fats, and proteins.
Write any three differences between infectious and non- infectious disease
please its aurgent
Answers
Answer:
Infectious diseases are transmitted from person-to-person through the transfer of a pathogen such as bacteria, viruses, fungi or parasites. A non-infectious disease cannot be transmitted through a pathogen and is caused by a variety of other circumstantial factors.
Explanation:
Describe the effects of estrogen on
the developing female reproductive
system.
Answers
Answer:
In females, estrogens affect the ovaries, vagina, fallopian tubes, uterus, and mammary glands. In the ovaries, estrogens help to stimulate the growth of the egg follicle; they also stimulate the pituitary gland in the brain to release hormones that assist in follicular development.
2x+3y=12
x-5y=-7
solve simultaneously
Answers
I couldn’t fit the whole question in so the last two options are
-Natural disasters are so rare that they have not affected human population very much
-Natural disasters are a concern for human, life and property, but there is nothing we can do to predict them or prepare for them
Im honestly going between the first one and the last
Answers
A scientist is treating rice plants with a chemical that causes mutations. What is the possible benefit of this treatment? A. clones B. transgenic plants C. increased genetic variation D. increased hybridization
Answers
Answer:
Explanation:
Its either B or C, look closely at the question and at the answers, you can narrow it down from then.
A scientist is treating rice plants with a chemical that causes mutations. The possible benefit of this treatment is transgenic plants. Hence, the correct option is B.
What is mutation?A mutation is a change in the DNA sequence that makes up a gene. It can result from errors in DNA replication or exposure to mutagenic agents such as chemicals or radiation, or from spontaneous changes.
Transgenic plants are the plants that have been genetically modified to express specific traits or traits that are not found in the original species. This is done by introducing foreign DNA or chemicals that change the plant's genome. This process is called genetic engineering.
Transgenic plants have become an important tool in agriculture and biotechnology, providing new opportunities for food production, environmental protection and economic growth. Hence, the correct option is B.
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Help me ASAP! CORRECT ME IF AM WRONG TY BOYS AND GIRLS
Answers
Answer:
CORRECT
Explanation:
Explain why many plant parts appear green in color?
Answers
Answer:
The chlorophyll inside the plants cells give the plants its pretty, green colour.
Type the correct answer in the box. Spell all words correctly. Which microscope allows two samples to be viewed simultaneously? Forensic scientists use the microscope to view two samples simultaneously at extreme magnification.
Answers
Answer:
Comparison microscope
Explanation:
The correct answer would be the comparison microscope.
The comparison microscope consists of two compound microscopes with a center eyepiece. The eyepiece captures and displays the images from the two microscopes and the observer can compare and contrast for investigative purposes.
The capacity to produce two images for comparison purposes makes the microscope useful in forensic investigations.
What is the role of protein channels in the cell membrane?
Answers
Answer:
protein channels to cell membranes
The_______
is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah
Jesus directed them not to tell anyone else.
Answers
Answer:
Messianic secret
Explanation:
The Messianic secret is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah. Jesus directed them not to tell anyone else.
Hope this helps!
pls mark brainliest :)
(Many points) PLS HELP QUICK dont guess answer pls ad dont say random answers for points pls
Cheng made a chart to list the functions of certain fish structures.
(The image below)
Which headings correctly complete the chart?
X: Fin
Y: Swim bladder
Z: Lateral line
X: Fin
Y: Lateral line
Z: Swim bladder
X: Lateral line
Y: Swim bladder
Z: Fin
X: Lateral Line
Y: Fin
Z: Swim bladder
Answers
Answer:
x:fin
y:lateral line
z:swim bladder
Answer: The answer for this question is Fin for x Lateral line for y and
swim bladder for z
Explanation:
I took the test
What type of mutation is shown in the example below?
Original DNA: ATCGTCGTCGT
Mutated DNA: ATCGTCGTGT
Answers
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1. Which criteria are used to classify amphibians into orders?
Answers
Answer:
They are classified into three orders: frogs and toads, salamanders and newts, and caecilians.
Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?
Answers
Clouds are categorized by their shape and their elevation. Which list shows cloud type in order from lowest to highest in the sky?
The answer is C ( stratus, altocumulus, cirrus )
Answer: it’s C
Explanation:
how do photosynthesis and cellular respiration affect the CO2 and O2 in our atmosphere?
Answers
Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.
When a human cell divides in mitosis, the two daughter cells will each have: _____
Answers
Answer: In mitosis a cell divides to form two identical daughter cells. It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set. Before mitosis, the chromosomes are copied.
Compare the planets Mars and Saturn. Describe how their common characteristics are similar.
Answers
Answer:
Both Mars and Saturn have rings.
Inherited used in a sentence
Answers
There is a belief that there are as many neurons in the human body as there are stars in the Milky Way Galaxy. Do you believe this? How would you react on this?
Answers
Answer:
I do believe this. If you take the amount of neurons in the average adult body and expand them to the size of a say a blueberry It would expand to be the approximately the size of the sun
Explanation:
The given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.
What are Neurons?These are the nerve cell that is found in the brain and nerve tissue in the body.It has been estimated that there are 100 billion neurons in the human brain which is about the number of stars in our Galaxy.The human brain is very complex and this complexity comes from such a huge number of neurons.
Therefore, the given statement is true. It is a surprising fact that helps a person to believe that his brain has the power to take him beyond expectations.
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Why are the rocks on the bottom folded but the top ones are not? What could’ve caused this?
Answers
Answer: The basic answer could be because of the tectonics plates.
Explanation: Because when two forces act towards each other from opposite sides, rock layers are bent into folds.
Typically, sedimentary rocks are arranged in layers, one on top of the other, the oldest items are listed last, followed by the youngest, this is the concept of "superposition.
Why are rocks folded?Erosion has removed the top layers of the rocks, resulting in the formation of valleys and hills, the top layer might be penetrated with sufficient power. The plates might shift due to erosion, and plate movement.
Many of the stratified rocks, however, are no longer horizontal, we know that sedimentary rocks that are not horizontal either were created in unique ways.
Therefore, more frequently, were shifted from their horizontal position by subsequent processes, such as tilting during episodes of mountain construction, thanks to the Law of Original Horizontality.
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what is unequal sharing of electrons
Answers
Answer:
Covalent bond between two atoms with unequal electronegativities results in unequal sharing of electrons. These types of covalent bonds are called polar bonds because the electron distribution or charge is unevenly distributed or polarized. .
Explanation: