Answer:c salt ions move out of the cell
Explanation:
Salt is less than 1
Red blood cells have a salt content of 0.9%. When a microbiologist places red blood cells in pure water, osmosis occurs. This results into water molecules . Thus, the correct option is C.
What is Osmosis?Osmosis is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential or lower solute concentration to a region of low water potential or higher solute concentration, in the direction which tends to equalize the solute concentrations on the two sides of the membrane.
It is of two types, on the basis of movement of solvent particles, when the solvent moves inside the cell it is called endosmosis which results into turgid cells and the movement of solvent molecules outside the cell which is called exosmosis that results into flaccid cells.
Therefore, the correct option is C.
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Alfred Wegener's theory about Earth's past included a supercontinent made up of all the continents put together.
What was the name of the supercontinent?
Pangaea
Americas
Gondwanaland
Laurasia
Answer:
I do K12 and got it right its A. Pangaea.
Hope it helped, 0Drink0Milk0
Answer: d. Pangaea
Explanation:
what is the diagram of 2NH3
6. In a population which is in Hardy-Weinberg equilibrium, what would be the frequency of heterozygotes for
alleles A and a (i.e. genotype Aa), when the frequency of the allele a is 0.6?
a. 1.2
b. 0.16
c. 0.48
d. 0.45
Please show formula. I am lost
1.2 is correct aanser
yes it is correctly
I need help on this
Answer:
1. energy
2. potential energy
3.kinetic energy
4. mechanical energy
5. b
Explanation:
Help me with this question?
Answer:
Hey you called me dumb, but i will answer
meiosis
Explanation:
What could explain the curve in this population growth graph? A graph has time on the horizontal axis and population size on the vertical axis. The population size was constant for a period of time, increased rapidly, and then became constant again. an unlimited food supply a natural disaster a population crash a reduction in predators
Answer:
A reduction in predators
Explanation:
I just took the test
A reduction in predators could explain the curve in this population growth graph.
How does reduction in number of predators lead to curve?The prey species soon degrades and overruns its area since there are no predators to regulate the population and modify feeding behavior.When food becomes scarce, people grow unwell and famished, and they either flee or crash.When predator populations grow, putting more pressure on prey populations and acting as a top-down control, pushing them toward extinction. As a result, the size of prey populations is influenced by both resource availability and predation.
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4) How does climate affect ecosystems and the life within them?
Answer:
Explanation:Climate is an important environmental influence on ecosystems. Changing climate affects ecosystems in a variety of ways. For instance, warming may force species to migrate to higher latitudes or higher elevations where temperatures are more conducive to their survival.
Ruby has observed that plants in her garden vary in height. She wants to investigate whether a plant species (species A) grows faster than the other garden species (species B, C, and D). Select the statement that describes Ruby gathering enough evidence to support a scientific explanation concerning plant growth rates
Answer:
This question lacks options, the options are:
A) Ruby measures the heights of several species A, B, C, and D plants for a week under different conditions and finds a journal article that describes the growth rate of species A.
B) Ruby measures the height of a species A plant for a week and finds an anonymous gardening blog that describes the growth rate of species A.
C) Ruby measures the heights of several species A, B, C, and D plants for a week under the same conditions.
D) Ruby measures the heights of several species A, B, C, and D plants for a week under the same conditions and finds journal articles that describe the growth rates of each species.
The answer is D
Explanation:
According to this question, Ruby wants to investigate whether a plant species A in her garden grows faster than other plant species (B, C and D) due to the varying height she observed in them. To do this, Ruby will need to conduct a scientific investigation by measuring the height of all the plant species she is trying to compare (A, B, C, D).
However, she must do the measurements under the same conditions i.e. controlled in order not to influence the result. In order to make a scientific explanation concerning the plant growth rates, Ruby should find journal articles that describe the growth rates of each species and make comparison with her experimental/measured height values.
what is the function of RBC
Answer:
When a red blood cell is placed in a hypertonic solution, it contracts as water is drawn out of the cell and into the surrounding solution. If the same blood cell is placed in a hypotonic solution, the blood cell grows in size. Blood cells in isotonic solutions do not shrink or swell.
The reason that blood cells change in size when placed in a solution with different salt concentration is due to the osmosis process. Osmosis causes solutions with high concentrations of salt to draw water from areas with low concentrations of salt.
There are some exceptions to this phenomenon. Blood cells can draw water and explode when placed in hypertonic solution on some special occasions. Some diseases affect the structural integrity of blood cells. Also, when human blood cells are exposed to temperatures close to freezing, they can draw water and explode.
Osmosis is an important phenomenon for living systems. The amount of salt in a given solution exhibits a tendency to diffuse through the environment, eventually resulting in equilibrium. In addition to blood cells, the kidneys function through the use of osmotic principles. The kidneys filter an animal's blood to remove excess salt and balance the amount of water
Answer:
It carry oxygen from our lungs to the rest of our bodies. they make the return trip, taking carbondioxide back to our lungs to be exhaled
What provides the energy that is stored in ATP molecules?
A. Phospholipid
B. Food
C. Blood
D. Oxygen
Answer:
The correst answer is A.
16. Which is an abiotic factor that would affect the growth of a population within an ecosystem?
a. the availability of water
c. the type of herbivores present
b. the availability of producers
d. the number of carnivores present
Answer:
A, the availability of water
Explanation:
what is that scp that mimcs other human voices? it is like a red crocodile
Answer:
when you are able to mimic other humans voices you must be very very talented and have practice a lot because your vocal cords have adapted 2 copying other people's voices
Answer:
SCP-939
Explanation:
What is the area of the triangle?
16
10
8
Answer:
10
Explanation:
Are Bacteria (essential/non-essential) to sustaining the EcoSphere?
If a cell completes the cell cycle, then the resulting cells also complete the cell cycle, how many total cells have been formed?
1. 2
2. 4
3. 6
4. 8
Please hurry i got 10 min left in class and dont know answer );
Write a statement about the role gravity plays in the motion of the planets.
Answer:
Gravity is what holds the planets in orbit around the sun and what keeps the moon in orbit around Earth. ... Gravity creates stars and planets by pulling together the material from which they are made. Gravity not only pulls on mass but also on light.
is black coffee a strong or weak acid ?
Answer:
Coffee often gets branded as an acidic drink, but in fact, coffee comes in at around a five on the pH scale, which is actually less acidic than drinks like beer, orange juice, and even soda.
The cells of a plant help the plant maintain its life functions. What part of a plant cell has the function of producing sugar in the presence of sunlight?
Answer:
CHLOROPLAST
Explanation:
As stated in this question, plant cells are capable of producing their own food in form of sugar (glucose) using energy from sunlight in a process called PHOTOSYNTHESIS. Photosynthesis is the process by which green plants and other certain organisms synthesize their own food using light energy.
The ability to carry out this photosynthetic function is embedded in a structure found in plant cells called CHLOROPLAST. Chloroplast contains a pigment called CHLOROPHYLL, which captures light energy from the sun. Generally, the the function of producing sugar in the presence of sunlight (photosynthesis) occurs in the CHLOROPLAST.
which of the following can lower the carrying capacity of a particular area?
Answer:
honestly I think its C smaller organisms .I could be completely wrong so keep that in mind
Identify 3 uses of ATP in a cell
Answer:
ATP is consumed for energy in processes including ion transport, muscle contraction, nerve impulse propagation, substrate phosphorylation, and chemical synthesis
Explanation:
A h e t e r o z y g o u s parent is crossed with a h o m o z y g o u s recessive parent. Complete a Punnett Square and answer the questions below.
I Am Not Sure What Your Asking?
Answer:
Black Fur & Black Eyes: 4/16
Black Fur & Red Eyes: 4/16
White Fur & Black Eyes: 4/16
White Fur & Red Eyes: 4/16
4 is 1/4 of 16
Explanation:
I hope this helps
Which of the following best describes how sedimentary rock forms?
A Molten rock beneath the surface of Earth cools and becomes solid.
B Layers of sediment
become compressed over time to form rock.
C Chemical processes or changes in pressure or temperature change a rock.
D Molten rock reaches the surface and cools to become solid rock.
Answer:
I think its B
Explanation:
Which molecule separates the conteins inside of the cell from the contents outside of the cell
Answer:
Thanks
Explanation:
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How does the number of valence electrons in sodium (Na) compare to the number of valence electrons in calcium (Ca)? A. Na has two fewer valence electrons than Ca. B. Na and Ca have an equal number of valence electrons. C. Na has one more valence electron than Ca. D. Na has one fewer valence electron than Ca.
Answer:
D. Na has one fewer valence electron than Ca.
Explanation:
Elements in different groups has been grouper based on the number of valence electrons they possess. Valence electrons refers to the electrons at the outermost part of the shell of an atomic element.
Sodium (Na) belongs to group 1 on the periodic table meaning that it has one number of valence electrons while Calcium (Ca) belongs to group 2 meaning that it has two number of valence electrons. Hence, Na has one fewer valence electron than Ca.
Which of the following is the source of the carbon in sugar produced during photosynthesis?
A) carbon dioxide
B) water
C) rubisco
D) ATP
What's the connection between epigenome and nature vs nurture?
Answer:
The survival and proper functioning of an organism depends on a finely tuned interface between genome and environment, nature and nurture. The interface that regulates gene expression through environmental feedback is called the epigenome.
Explanation:
6. A cell recognizes that it has a damaged
mitochondria. Where would this damaged
organelle go to be broken down?
A. Lysosome
B. B. Vacuole
C. C. Chloroplast
D. D. Cell Membrane
Explanation:
Cell death, also called apoptosis, is an essential part of life. As cells become old or broken, they are cleared away and destroyed. Mitochondria help decide which cells are destroyed.
A substance only composed of one kind of atom is a(n) *
I WILL GIVE BRAINLY PLEASE HURRY!!
Some towns have decided to bury their garbage to get rid of it. What is one harmful effect of this practice?
Answer:
It can put harmful substances into the atmosphere and boost climate change.
Explanation:
brainliest pls
Answer:
plants and animals habitats will be ruined and or killed off by this harmful practice
Trilobites are used as index fossils because
Answer:
d
Explanation: