B
H
C
G
D
E
F
Which organelle is labeled H?
Answer:
H
Explanation:
Giving 50 points HURRY!!!
Environmental Science, Lab: Natural Selection
Instructions
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Answer:
okay paste the link we are waiting
In the simulation, when protein molecules were evenly distributed on both sides of the membrane, was the solution isotonic, hypertonic, or hypotonic? Which direction was water flowing?
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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4. The human population has experienced unchecked growth for the past 200 years. What does "unchecked" mean? A. Slow b. At a steady rate c. Unrestrained d. Dangerous
Answer:
B
Explanation:
The correct option would be B
The human population experiencing unchecked growth for the past 200 years does not mean that there were no restraining factors that limit the population. Factors such as death, competition for resources, diseases, etc., were still present.
Despite the limiting factors, the population has been growing. Hence, the correct word to replace 'unchecked growth' would be 'at a steady rate'.
Slow and dangerous really have nothing synonymous with unchecked growth.
The correct option is, therefore, B.
HELPPPP, ASAPPP THEY ONLY GAVE ME A FEW MINUTES TO COMPLETE!!
Discuss the benefits and drawbacks of
using solar energy and wind energy.
Answer:
hmm I'd say something like "Solar and Wind energy systems are renewable sources and ultimately are healthier for the planet, the drawback is that other resources (i.e oil and coal) tend to be cheaper"
Answer:
Solar Energy:-Benefits-
Solar power is completely cleanIt produces no air pollution, no water pollution, no greenhouse gas effects and carbon - free alsoNo harmful emissions are released when electricity is being produced by solar panels.It also reduces the need for finite resources.Drawbacks-
Solar Energy Storage Is ExpensiveUses a Lot of SpaceIts Weather-Dependent, slthough solar energy can still be collected during cloudy and rainy days, the efficiency of the solar system drops.Initial cost of purchasing a solar system is fairly high.Wind Energy:-Benefits-
Wind is a domestic source of energyIt's a clean fuel sourceIt's sustainable and causes no harmful emissions. Wind energy is a green energy source and does not cause pollution.Drawbacks-
Wind turbines are prone to noise disturbances.The wind is inconsistentWind turbines involve high upfront capital investment.Installation can take up a significant portion of land.5. Which statement is true of an organ system?
An organ system supports all parts of the
organism.
An organ system is not necessary for the survival
of the organism.
One organ system can take over for another organ
system
One organ system has no connection with other
organ systems.
organ system support all part of body
9(5x + 1) ÷ 3y
From the expression above, provide an example of each of the following: sum, term, product, factor, quotient, and coefficient. If any are not present, write "not present."
Answer:
[tex] \frac{9(5x + 1)}{3y} \\ = \frac{3(5x + 1)}{y} \\ = \frac{15x + 3}{y} [/tex]
Answer:
Explanation:
Help Pls, realllly important! Absurd answers will be reported •_•
I’ll put picture below ;D
Which of the following best explains the speed at which these planets orbit the Sun?
Thanks! <3
Answer: Imma be honest I think it's the 2nd one
Explanation:
Answer:
option b
Explanation:
have a great dayyyyy
In a predator prey graph, the peak for the predator population always comes after the peak for the prey
population. Why do you think this happens?
60 predator prey grap populationin the peak.
When someone says the word "desert," what plant do you picture? You're probably
picturing the saguaro cactus. Saguaros are known for their long, tall branches that look like
arms. These branches don't start to grow until the cactus is 50 to 70 years old. The folds
along the saguaro's stem and branches are called pleats. What are they for? These pleats
store water for the cactus, which is important in the hot, dry desert. A desert plant's spikes
aren't just to keep animals away. They also help provide shade during the long hours they
spend in the sun.
A saguaro cactus will
A
store water in its pleats.
B
shoot spikes at animals.
С
only live up to 70 years.
D
grow branches immediately
Answer:
It's A
Explanation:
HELP PLS
Probability in Genetics (Drag each key word to its definition.)
Answer:
could u plz explane it berifly????
Explanation:
The variable h represents the number of hours spent doing yard work and the variable d represents the amount of money earned how many hours spent doing yard work and the variable d represents the amount of money earned how many hours in all will it take Whitney to earn 15$
Answer:
[tex]4\frac{1}{11}[/tex] hours
Explanation:
Given
See attachment for graph
First, we determine the equation of the graph.
Pick any two points from the graph
[tex](h_1,d_1) =(18,168)[/tex]
[tex](h_2,d_2) =(36,366)[/tex]
Calculate the slope (m)
[tex]m = \frac{d_2 - d_1}{h_2 -h_1}[/tex]
This gives:
[tex]m = \frac{366 - 168}{36 -18}[/tex]
[tex]m = \frac{198}{18}[/tex]
[tex]m = 11[/tex]
The equation is then calculated as:
[tex]d = m(h - h_1) + d_1[/tex]
This gives:
[tex]d = 11(h - 18) + 168[/tex]
Open bracket
[tex]d = 11h - 198 + 168[/tex]
[tex]d = 11h-30[/tex]
So, the number of hours to earn $15 is:
[tex]d = 11h-30[/tex]
[tex]15 = 11h -30[/tex]
Collect like terms
[tex]11h = 15 + 30[/tex]
[tex]11h = 45[/tex]
Solve for h
[tex]h = \frac{45}{11}[/tex]
[tex]h = 4\frac{1}{11}[/tex]
When an acid and a base react together, what are the products?
A) Acid and Salt
B) Salt and Base
C) Base and Water
D) Salt and Water
Answer:
D.Salt and water
Explanation:
:) hope this helped
An animal cell is dividing. Which of the following would not be seen during this process?
cleavage furrow
cytokinesis
cell plate
centrioles
Answer:
cell plate
Explanation:
When cells join together, what is formed?
A. Tissue
B. Organs
Answer:
A. Tissue
Explanation:
The cells join together to form tissues. So, option (A) is the correct answer.
Answer:
A. Tissue
Explanation:
Just as cells join together to form tissues
Los nombres de esos esos éteres y aldehidos
Explanation:
la respuesta está en la imagen de arriba
What would happen if glycolysis could not happen in a cell?
O A. The cell would use anaerobic respiration.
O B. The cell would not produce ATP molecules.
O C. The cell would produce more energy.
D. The cell would begin fermentation.
Answer:
B. The cell would not produce ATP molecules.
From what you can see about the shape of HIV, explain what the problem would be with a vaccine to HIV?
Answer:
Diversity and strategies.
Explanation:
The problem would be with a vaccine to HIV is that HIV virus has diversity as well as strategies of HIV virus adopted to avoid the effect of vaccine so it can't kill the HIV virus from the body so the virus cause infection to the cells of the body again and again. The diversification of HIV strain reduce the impact of vaccine on HIV virus whereas using different strategies by the HIV virus to avoid effects of vaccine.
Energy
as it transfers from one consumer to the next.
increases
decreases
stays the same
Explanation:
increases
I hope I helped u >~<
What subatomic particles make up the nucleus of an atom? Check all that apply.
neutrons
electrons
protons
subatomic particles are not found in the nucleus
Answer:
• neutrons
• protons
Explanation:
The nucleus is made up of two types of subatomic particles, that is the protons and neutrons.
Answer:
neutrons and protons
Explanation:
please answer this for me
Answer:
The answer is a tape worm they are long and flat and can have more than one inside a animal, fish, human, and more
How many amino acids must be obtained in the diet because they cannot be made by the body? A. 2 B.5 C.10 D.20
Answer: C
Explanation: Just is.
Which animal adaptation happened before the others?
A. Reproduction on land
B. Lungs
C. Backbone and skull
D. Development of a coelom
Answer: D. development of a coelom
Answer:
D?
Explanation:
Plz help me I need help
water molecules are polar.
mark me brainliesttt :))
The intense heat from Earth's interior is called _____________________ energy.
Answer:
it's called geothermal energy
Charlotte and her husband Frederick have genetic testing done. They both have a normal karyotype. The biggest difference between their karyotypes is _____.
In this food web, what would happen if the zebra population declined due
to a disease?
1 point
O
A. There would be more competition among the lions, hyenas, and cheetahs.
B. The giraffe population would decrease
C. Baboons would have a food shortage.
ОО
D. The grass population would decrease
PLEASE I NEED HELP Question 8 of 10
Membrane proteins called pumps use energy to move hydrogen ions to one
side of the membrane. Which term describes the difference between the
numbers of hydrogen ions on opposite sides of the membrane?
A. lon concentration
B. Concentration gradient
C. Homeostasis
D. Equilibrium
Answer:
Explanation:
Pumps, also called transporters, are transmembrane proteins that actively move ions and/or solutes against a concentration or electrochemical gradient across biological membranes. Pumps generate a membrane potential by creating an electrochemical gradient across the membrane.
How are many unicelled organisms. In addition , anything less than a cell is not alive. What do these statements imply about cells?
Answer:
The correct answer is - cells are the basic unit of life.
Explanation:
As it is given and also known that there are many unicellular organisms exists and they do not require the multicellular body to live their life or survival. Multicellular organisms are made up of various cells joined together to form a complex organization.
Anything less than a cell can not live or survive and also do not called a living entity. So, from above we can say the basic unit of the life is cell.
do you think there is an aesthetic value that could be attached to the hides of the nguni cattle after slaughtering ?
Answer:
The correct answer is - yes, these hides are used as aesthetic value.
Explanation:
Nguni hides are the secondary products after slaughtering the Nguni cattle farmed in South Africa. These skins or hides are used to make many aesthetic values and beauty items such as floor rugs. These hides are not only famous for their natural beauty but also due to their incredibly hard-wearing and very easy to clean.
Other than Floor rugs these are also used as furniture in rich houses and lodges. These hides are used to make shoes, leather jackets, car leather, and many more.
