2.1) What are two differences between plant and animal cells?
Answer:
Major structural differences between a plant and an animal cell include: Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not.
Answer:
plant cells have cell wall
plant cells have a single large vacuole
animal cells don't have cell wall
animal cell have many smaller vacuole
hope it helps
if humans run out of following resources, which resource would be most difficult to replace
Answer:
Petroleum
Explanation:
Like all fossil fuels, petroleum is a nonrenewable energy resource. This means that it is a resource that cannot be replaced as quickly as humans use up existing supplies. Humans face a problem because once petroleum reserves begin to run out, there won't be enough fuel to power all the automobiles in the world.
How do stars generate light? Select the BEST answer.
A. Hydrogen fuses into helium generating a great deal of energy
B. The chemicals in the star glow giving off light
C. Chemicals burn to cause the light
Answer:
A. Hydrogen fuses into helium generating a great deal of energy
reactions of photosynthesis
Which two body systems are interacting in the diagram?
Answer:
Where is the diagram pls?
The ____________________ is the reproductive structure of gymnosperms.
Answer:
seed cones and pollen cones
Explanation:
In gymnosperms, their reproductive structures include the pollen cones, which produce pollen grains or the male gametophyte; and the seed cones, which produce female gametophyte.
Answer:
The Answer Is "Cones"
Explanation:
Why? Well, the cones spread from the male cones to the female cones... Then, the female cones put this sticky stuff on the cone called, " Ovule" Finally, it creates the cycle once again.
Also, have a mythical day!!!
Use these when yall break up.
“the facts i convinced my friends you were attractive-“
“i lowered my standards for you and this is how you treat me?”
“yk im startin to understand why my friends laughed when i showed them you”
girllllll your gonna leave that man im tears !!!!!
I will remember these when I will not be single (Single life sucks)
Brown eyes are dominant over blue eyes. Show the possible outcomes of offspring between a heterozygous brown-eyed male and a blue eyed female. Use the letter B
Can someone help me with question 1 pls:)
answer:
c d e
good luck :)
hopefully, this helps
have a great day !!
a particle of oxygen has 8 protons and 8 electrons. is this an atom or an ion? what's the charge?
Answer: It is Atom and the charge would be postive.
Explanation: If the atom had 8 protons and 8 electrons (oxygen for example), knocking one of the electrons out, makes 8 protons and 7 electrons. The atom now has a net charge of +1 because the 7 electrons cancil the positive charges of 7 of the protons in the nucleus, but there is one remaining proton with a positive charge.Oxygen's 8 electrons are negatively charged, and they orbit the atomic nucleus and balance the positive charge of the 8 protons. The positive charge of 1 proton exactly cancels the negative charge of 1 electron. Answer 9: Oxygen is atomic number 8 on the periodic table, which means it has 8 protons!
Hope this helps :) Can u plz mark me branliest :)
A particle of oxygen has 8 protons and 8 electrons in an atom and the charge on it is zero.
What is an atom?It is the smallest particle of matter composed of electrons and a nucleus of protons and neutrons.
What is an ion?It is an atom with a positive or negative charge due to either loss or gain of electrons.
Every atom tends to have a noble gas configuration for stability and they either tend to lose, gain, or share electrons to achieve it.
The oxygen atom generally gains 2 electrons to complete its octet and has a net -2 charge.
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Check all of the BIOTIC factors in an ecosystem.
THE SUN
TREES
ANIMALS
PLANTS
Answer:
B.Trees C.Animals & D.Plants are all biotic factors
Explanation:
A biotic factor is a living factor on an ecosystem, the sun is an abiotic factor because it is nonliving.
The mass and______of an object affects the momentum of its motion.
a. destiny
b. shape
c. velocity
d. volume
Use the data table to complete the question
Visible light occurs along a continuum of different wavelengths. The datatable shows the wavelength in nanometers of four colors of visible light
Which color has the HIGHEST FREQUENCY?
Wavelength of Colors of Visible
Light In a Vacuum
Color Wavelength
(nanometers)
Red
700
Orange-Yellow
600
Green-Blue
500
Violet
400
A.Blue-Green
B.Red
C.Orange-Yellow
D.Violet
Answer:
A.Blue-Green
may be right answer
-_-
HOW AND WHY HAS THE SEA-TURTLE CHANGE?
Help me please!!!!!!!
4,3 of two the between difference the to sent PaulRegards1,2,4Ode3,
In guinea pigs, the allele for short hair (S) is dominant over long hair (s). If two heterozygous short-haired guinea pigs mate, what percentage of their offspring will have long hair?
Answer:
75% long hair
Explanation:
If you use a table and put Ss for one parent on top and Ss one the side for the other parent you get the result of SS Ss Ss ss which means 75% long hair.
Change to hypothesis
What effect does the water temperature have on solution rate?
As the temperature of the water increases so does the solution rate as the atoms gain more energy therefore there will be more frequent collisions.
Pls help! Explain why blood pressure must decrease in the arterioles before entering the capillaries ahhhhh
this is because the blood flow slow through the capillaries to allow gaseous exchange. Plus the pressure is higher in capillaries because the diameter of the capillaries is smaller than arterioles
Where are chromosomes found in a cell?
Answer:
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).
Explanation:
the diagram shown above illustrates the---- cycle.
What effect does burning fossil fuels during manufacturing and energy production have on outdoor air pollution?
Answer:
It causes global warming as well as air pollution.
Explanation:
Burning of fossil fuels has adverse effect on outdoor air pollution because when the fossil fuels burns carbondioxide gas is released in the atmosphere. Carbondioxide gas is a greenhouse gas which is released in the atmosphere through burning of fossil fuels and is responsible for increasing air pollution. This increase in carbondioxide gas leads to global warming due to blockage of solar radiation that is reflected from the earth surface.
What is the molar mass of the following compound: Ca5(PO3)3
Answer:
454.3132 g/mol
Explanation:
..
Your friend claims that all mutations are harmful to living things. Do you agree or disagree with this claim? Support your position with:
a description of a genetic mutation and
a scientific explanation of how a mutation may affect an organism such as a tomato, spinach, or strawberry plant.
Answer:
Explanation:
yes
Answer:
Answer:
Increased Bone Density found in humans which makes the human body stronger, as well as strenthening defense.
Mutations may affect tomatoes my increasing water retention
Explanation:
Explanation:
9. Which food would you expect to have the lowest lipid levels?
a. Olives
b. Pistachios
c. Wheat crackers
d. Sesame seeds
The food expect to have the lowest lipid levels is sesame seeds. The correct option is d.
What is lipid?Lipids are hydrocarbon-containing molecules that serve as the foundation for the structure and function of living cells.
Lipids include fats, oils, waxes, vitamins (such as A, D, E, and K), hormones, and the majority of the cell membrane that is not made of protein.
Carbon, hydrogen, and oxygen are the same elements found in lipids as they are in carbohydrates.
Lipids, on the other hand, are primarily composed of hydrocarbon chains and contain fewer polar hydroxyl groups. As a result, most lipids are nonpolar hydrophobic molecules.
Sesame seeds are high in saturated fat (15%), polyunsaturated fat (41%), and monounsaturated fat (39%).
According to research, eating more polyunsaturated and monounsaturated fat than saturated fat may help lower your cholesterol and reduce your risk of heart disease.
Thus, the correct option is d.
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What will happen to the red blood cell in this environment?
Group of answer choices
The red blood cell will swell from absorbing salt molecules.
The size of the red blood cell will remain constant.
The red blood cell will swell at first and then shrink.
The red blood cell will shrink from losing water molecules.
Answer:
Explanation:
A The size of the red blood cell will remain constant. B The red blood cell will swell at first and then shrink.
The red blood cell in this environment is the red blood cell will swell from absorbing salt molecules. Thus, option A is correct.
What is the salt concentration of red blood cell?The red blood cell has a lower salt concentration than the liquid which means that it has a higher water concentration than the liquid. By the process of osmosis, water will flow from the red blood cell to the liquid which would lead to the red blood cell shrinking in size.
Cellular respiration has used to create energy for cells. It works by burning glucose in the presence of oxygen. The result is an outburst of energy and [tex]CO2[/tex] as well as water. Red blood cells that are bathed in blood neither shrink nor swell and burst because the concentration of the surrounding blood is equal to the concentration inside the cytoplasm of the red blood cells. This means that the two solutions are isotonic.
Therefore, The red blood cell in this environment is the red blood cell will swell from absorbing salt molecules. Thus, option A is correct.
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Can a species become extinct independent of a mass extinction event? How many species have to go
extinct for it to qualify as a mass extinction?
Answer: I cant say for sure how many species have to be extinct. But yes a species can become extinct.
Explanation:
#5 Which statement is true in regards to DNA mutations? *
Mutations can lead to positive adaptations in an organism
all mutations result in a change in protein formed
mutations are not present in unicellular organisms
all mutations are negative and lead to diseases
Answer:
Mutations can lead to positive adaptations in an organism
Give an example of a genetic factor determining the growth of an organism. Give an example of an environmental factor determining growth of an organism.
Explanation:
Examples of genetic factors could include large breed cattle and species of grass affecting growth of organisms.
Similarly, drugs, chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off, thereby influencing the way an organism develops and functions.
What do organisms get when Glucose is broken down?
Answer:
They get energy
If an organism does not have a nucleus, has only one cell, and can survive in extreme conditions, into which domain would it be classified?
Question 8 options:
Domain Eukarya
Domain Archaea
Domain Bacteria