Answer:
1. Diffusion is the process of a substance moving from an area of high concentration to an area of lower concentration. Osmosis is a type of diffusion where water moves across a semipermeable membrane still from an area of high concentration of water to an area of lower concentration of water. This corresponds to water moving from an area with a low concentration of solute to an area with a higher concentration of solute.
2.
a. A semipermeable membrane allows some substances to pass through it.
b. The plasma membrane of a cell allows small uncharged molecules to pass through it, but not large molecules and not charged ions.
3.
a. The protein molecules were evenly distributed on both sides of the membrane, so this solution was isotonic.
b. In an isotonic solution, water moves both in and out of the cell, which was observed in the simulation.
4.
a. The protein molecules were more highly concentrated on the inside of the cell, so this solution was hypotonic.
b. In hypotonic solutions, water moves into the cell to help dissolve the higher amount of solute inside the cell, which was observed in the simulation.
5.
a. A semipermeable cell membrane is important to allow some molecules, like proteins, to be more highly concentrated inside the cell than outside the cell. If the cell membrane were permeable, the molecules on the inside of the cell would exit the cell and be evenly distributed in the cell and in its environment.
b. If the cell membrane were not permeable at all, the cell would not be able to receive nutrients from its environment.
Explanation:
When protein molecules were evenly distributed on both sides of the membrane, the solution is isotonic.
In isotonic solution the concentration of solutes on side remain same .There is no net gain or less of water in isotonic solution.What will be the direction of water flow in isotonic solution?The water will flow freely across the cell membrane without any change in the concentration of solutes.In isotonic solution the cell neither shrink nor swell because the water concentration will remain same.To know more about isotonic solution here
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Which of the following terms describe the Fungi?
-symbionts
-parasites
-predators
-saprobes
Answer:
saprophytesExplanation:
saprophtes not saprobes describe the fungi because they feed on dead organisms.
I hope this helps you
:-)
What is the smallest LIVING part of an organism?
A. Molecules
B. Cells
Answer:
Hi, there the answer is a cell
Explanation:
The smallest living part of an organism is a cell. The cell is the smallest structural and functional unit of living organisms, which can exist on its own.
Answer:
B. Cells
Explanation:
The cells are the smallest living part of an organism.
what is a good definition of photosynthesis?
A. using glucose to create light
B. putting together lights so we can see
C. using light to put together food (glucose)
Answer:
The best answer is C
Explanation:
Plants use light to create their own food. this is called photosynthesis
Answer:
C
Explanation:
The process of photosynthesis uses light to create food and uses other gas like carbon dioxide.
what do you mean by faunal Diversity
Answer:
animal life especially
Explanation:
i hope it helps
this is my answer
correct me if im wrong
#carryonlearning
What nervous system is controlled by the hypothalamus?
Answer:
The hypothalamus is the key brain site for central control of the autonomic nervous system, and the paraventricular nucleus is the key hypothalamic site for this control.
Explanation:
Which best describes a gene?
the short arm of a chromosome
tightly coiled strands of DNA
the center of a chromosome
a segment of chromosomal DNA
Answer:
A gene is a segment of a DNA strand.
Answer: a segment of chromosomal dna
Explanation:
Which of the following facts is the best evidence that humans and salamanders had a common ancestor?
A) Both species eat meat
B) Both species have pharyngeal arches and slits when they are embryos
C) Both species can swim
D) Both species have skin
Answer:
B
Explanation:
Look up an image of a human embryo v. a salamander embryo if you look carefully you'll see the arches and slits.
Four friends were talking about the food they ate. Here is what they were discussing. • Kaustubh: ' It gives us energy to walk, run and lift things." • Shailaja: "It becomes a part of our body." • Jayasree: "It helps to fight diseases." • Aarti: "It is needed for the functioning of organs like the heart, brain and lungs." Who is correct?
Complete the T-chart by categorizing each environmental factor as something that would most likely increase or decrease genetic variation. Some answers will fit in both columns depending on the situation.
Predator-prey relationships
Competition
Toxins
New habitat
Disasters
Increased food source
A 2-column table has columns with labels Increase variation and decrease variation.
Answer: 1. Decrease 2. Decrease 3. Both 4. Both 5. Decrease 6. Increase
Explanation: I got it right hopefully it helps
Answer:just did it
Explanation:
Where are producers located on the energy pyramid?
Answer:
At the beginning of the pyramid
Answer:
At the ground state.
explanation:
As you increase the temperature, the rate of photosynthesis increases and then decreases.
True
False
Answer:
true
Explanation:
Because plants need sunlight to do photosynthesis.
What are the two sensory functions of ears?
Answer:
obviously listening and hearing
Gizmos ( Building DNA )
Activity A :
Question : What is the structure of DNA
Build : follow the steps given in the gizmo to construct a molecule of dna
Answer:
Double Helical Spiral structure
Explanation:
DNA is a helical spiral structure in which two long strands of nucleotide form a double helix structure.
It looks like a structure of ladder in which the phosphate and sugar molecules from the side of the ladder and the base pairs form the rungs.
I got 12.25/16.00 (76.56%)
my mom got angry TvT
Answer:
Well, Im proud of you. :)
Answer:
look at the bright side you passed mate
What is the function of the stigma?
A. To catch pollen grains
B. To produce eggs
C. To attract insects
Explanation:
A. to catch pollen grains
is yr correct ans.
hope it helps
stay safe healthy and happy..Answer:
A. To catch pollen grains
Explanation:
The function of the stigma is to catch the pollen grains.
2. Ang
ay isang genre na gumagamit ng mahika at
iba pang supernatural na penomena bilang punong elemento
ng plota, tema, at/o ganapan.
A. Pabula B. Drama
C. Pantasya D. Mga Tula
Answer:
C. Pantasya
Explanation:
Ang anumang genre ng pantasya ay magkakaroon ng isang uri ng supernatural o magic na tema na isinama dito
Sana nakatulong ito :)
Which of the images below depicts a healthy reef ecosystem?
Image A, B, C, or D?
Answer:
A is the answer i think because it has more reef
Which of the statements regarding the nitrogen cycle is true? a. Denitrification occurs when a nitrogen containing compound is produced from nitrogen in the soil. b. Atmospheric nitrogen is absorbed through the leaves of plants. c. Nitrogen fixation is the process atmospheric nitrogen is converted into biologically usable forms. d. Animals obtain nitrogen through the process of cellular respiration
Answer: Option C
Explanation:
The nitrogen cycle can be defined as the process by which the nitrogen is being recycled. The nitrogen is transferred from the atmosphere to the plants and then from plants to animals, human beings.
Then from animals and human beings it is again transferred into the soil and then atmosphere.
The nitrogen that is found in the sol is not in the usable form by the plants, nitrogen fixing bacteria converts it into usable form.
What is the purpose of the heart in the circulatory system?
Select one:
It provides oxygen during the release of hormones.
It is the muscle the pumps blood around the body.
It prevents pathogens from invading the organism.
It controls all of the body's functions.
Answer:
It is the muscle that pumps blood around the body
Explanation:
Someone please help me
Answer:
Because the reaction creates glucose and oxygen, the products will be C6H12O6 + O2
Explanation:
IS THIS CORRECT?? IF NOT WHATS THE ANSWER PLEASE
16. Which genotype represents a recessive trait? *
1 point
ee
Ee
EA
EE
Answer:
ee
Explanation:
in order for the genotype to represent a recessive trait both alleles ( letters ) have to be lowercase hence the answer is ee
1. What is facial reconstruction? Why is it used?
Answer:
Facial reconstruction is when you examine the bones of your face to figure out changes to make.
Cellular respiration is how living things obtain energy for life. The organelle where cellular respiration takes place is the
A. chloroplast
B. Golgi body
C. mitochondria
Answer:
C. Mitochondria
Explanation:
In a population:
A. Are organisms that live all over the world
B. Are autotrophs
C. All organisms are of different species
D. All organisms are the same species
Answer:
D. All organisms are the same species
Explanation:
The organisms of the same species in a particular area is called population.
Which of the following describes hemophilia?
O multiple-allele trait
O dominant trait
O sex-linked trait
O codominant trait
How to overcome Confusion?????
Answer:
use a full heal
Explanation:
Photosynthesis in plants is an example of
Answer: If you are asking if your answer is correct, it is. Photosynthesis is the process of converting sunlight into food and energy, therefore it is an example of nutrition.
Photosynthesis in plants is an example of nutrition
What is photosynthesis?
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
It is carried out by algae, plants and even some microorganisms.
The sugar produced form photosynthesis is a great source of nutrients for photosynthetic organisms and plants.
Therefore, photosynthesis in plants is an example of nutrition
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There are approximately 480 million alveoli present in human lungs. About 70% of the area of each alveolus is wrapped in
capillaries.
These factors make the alveoli a perfect location for
Answer:
oxygen diffusion occurs in the lung
Help me guys in science