Answer:
Cells have different shape and size because different cell types have different functions. For example : Red blood cells are shaped like a doughnut to carry more hemoglobin, and to fit through small spaces, and neurons are long and skinny to span wide places to send signals around the body .
Which answer best explains the difference between protists and bacteria?
A. Bacteria are prokaryotes and protists are eukaryotes
B. Bacteria have a cell membrane while protists do not
C. Bacteria have ribosomes while protists do not
D: bacteria have cytoplasm while protists do not
Answer:
The correct option is A. Bacteria are prokaryotes and protists are eukaryotes
Explanation:
The major difference between BACTERIA AND PROTISTS is the Bacteria are PROKARYOTES in nature and they dont have what we called nucleus reason been that their microbes are single celled microbes while protists on the other hand are EUKARYOTIC in nature and they have nucleus and they can either have a single-celled or have more than one celled.
The Second difference is that protists can only be found in the area or surrounding that are mostly moisture while bacterial on the second hand can be found in every area, environment or surrounding.
Therefore the answer that best explains the difference between both protists and bacteria
Is option A which states that Bacteria are PROKARYOTES while protists are EUKARYOTES.
describe the arrangement of water molecules in a solid, liquid and gas form. how does the movement of the molecules differ in each form? Describe the bonds when the molecules are in motion.
Answer:
In a solid, the molecules are tightly packed in neat rows and they vibrate quickly. Solids have a definite shape and volume. In a liquid, the molecules have more energy and they move around more freely. Liquids have a definite volume but they don't have a definite shape. The molecules in gases are spread apart and move very freely with very much energy. Gases do not have a definite shape or volume.
Hope this helps!
:)
The description of the arrangement of water molecules and their motion in a solid, liquid and gas form and how they differ in each form is as follows:
Solid state is characterized because the molecules that compose it are very close together by a network of covalent bonds and in more or less fixed positions; this makes the distance between the particles practically unchanged.
This is due to the fact that the attractive forces are very intense and the particles are only free to carry out small vibrations and that is why solids have constant shape and volume.
In the liquid state, the forces between the particles are weaker than in the solid state, which allows the particles to have some freedom of rotation and translation, due to mobile ions.
Besides the vibration; they can slide over each other and maintain a constant mean distance between them without being fixed.
For this reason, liquids, unlike solids, take variable forms, depending on the container that contains them and they can also flow easily.
Their similarity to solids is based on the fact that, like the solids, they are difficult to compress and have constant volume.
In the gaseous state the attractive forces are practically zero and the particles acquire a total mobility of vibration, rotation and translation,
Being the distance between the molecules much greater than the one that they have in solid or liquid state and, in addition, variable at all times.
Gases, unlike solids and liquids, can be easily compressed or expanded and also take the shape of the container that contains them, occupying the entire available volume.
Therefore, the intensities of the interactions or cohesion forces of water molecules are not the same in solids, liquids and gases, the effects of movement and interaction on the arrangement of the particles are opposed, resulting in different states of aggregation.
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Offspring Alleles
Leg
Eye
Fur
Tail
Fire
20
Answer:
Eye
Explanation:
why are sister chromatids genetically identical
Answer:
They carry the same alleles, also called variants or versions, of genes because they derive from one original chromosome.
Explanation:
One primary function of the cell membrane is
regulating the flow of simple sugars into or out of the cell
synthesizing substances by breaking down cell organelles
storing carbohydrates, water, and starches for future use
digesting carbohydrates, fats, and protein
Answer:
In the 1920s, two conflicting newspaper headlines called attention to a mysterious ... 35 One primary function of the cell membrane is (1) regulating the flow of simple ... substances by breaking down cell organelles (3) storing carbohydrates, water, and starches for future use (4) digesting carbohydrates, fats, and protein
Explanation:
The path of light refraction in the eye
I know light reflects 4 times but I don't know where
Answer:
Light ray coming inside the human eye refracts four times,
the first refraction takes place in cornea, secondly it takes place in aqueous humor, followed by refraction in lens and then in vitreous humor.
What is a mutation? Any change in the sequence of DNA's nucleotide bases O a change in the sequence of DNA'S phosphate groups a change in the sequence of DNA's deoxyribose sugars Oa change in the sequence of DNA's sugar of phosphate backbone
Answer:
A DNA mutation is when the DNA sequence begins to multiple out of control // copying mistakes.
Explanation:
What gas is CREATED during photosynthesis?
Carbon Monoxide
Carbon Dioxide
o
Water
O Oxygen
Quadriceps are found in the _____.
legs
chest
arms
back
Answer:
Legs
Explanation:
1) Explain what a covalent bond is.
Answer:
its a chemical link between two atoms or ions in where the electron pairs are shared between them :)
Explanation:
What stays constant in water (even if you evaporate it or freeze it )?
Carbon is unique due to the carbon atom’s
Answer:
Carbon is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms, and because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules.
Explanation:
Which best explains how green plants absorb energy from the sun?
A) Sunlight heats up the outside of a leaf
B) Chemical Bonds in a glucose are formed
C) A photon strikes electrons in special molecules in a cell
D) Carbon dioxide combines with water to form glucose molecules.
Answer:
the answer is C
Green plants absorb energy from the sun when "A photon strikes electrons in special molecules in a cell"
Green plants are unique organisms being that they possess the ability to capture and utilize energy from the sun. This is possible because they possess special pigments in their CHLOROPLAST called CHLOROPHYLL. The general process whereby green plants capture and utilize sun's energy is called PHOTOSYNTHESIS.
During photosynthesis, a photon of light strikes electrons in the thylakoid lumen of the chloroplast. This facilitates the synthesis of ATP (energy) in further reactions that takes place in the chloroplast.
Therefore, green plants are able to obtain energy from the sun when photons (beam of light) strikes electrons in their CHLOROPLAST.
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food contains several components called as?
Answer:
These components are called nutrients. The major nutrients in our food are named carbohydrates, proteins, fats, vitamins and minerals. In addition, food contains dietary fibers and water which are also needed by our body.
Explanation:
5. What happens to blood flow to the digestive system when you exercise?
Answer:
By exercising, it increases blood flow towards the muscles and digestive tract. This can help move food through the stomach, or digestive tract.
Suppose a massive amount of salt were suddenly dumped into one region of the ocean. The movement of water would be affected by the sudden increase in salt.
Identify the changes in salinity and density.
Describe the type of ocean current that would result
Answer:no
Explanation:because salt has been taken from the ocean only
A wildlife biologist and her team counted 150 lizards in a 25 km area. What is the population density
Given parameters:
Number of lizards = 150 lizards
Area of the study = 25km²
Unknown:
Population density = ?
Solution:
Population density refers to the number of organisms per area in a particular location.
Mathematically;
Population density = [tex]\frac{Total Population}{Area}[/tex]
Population density = [tex]\frac{150}{25}[/tex] = 6lizards/km²
The population density of the study area is 6lizards/km²
Which of the following is an example of a non contact force
Answer:
Gravity, Electrostatic force, Magnetic force
Explanation:
A non-contact force is a force that is applied to an object by another object without contact. Gravity, electrostatic force, and magnetic force all don't need two objects to be touching in order for them to work.
On the other hand, an example of a contact force is friction, because it can only occur if two objects are touching. If you want to tell the difference between a contact and non-contact force, just ask yourself if it can occur if the two objects are not touching. If it can occur while two objects aren't touching, it is non-contact, and if it can't, it is contact.
All the options given describe a force that involves contact except for the force exerted by magnets. Thus, the correct option is C.
Magnetic force is the force exerted by magnets. It can be described as the effect exerted on a charged particle due to the magnetic field of the other particle.
It is a consequence of the electromagnetic force, which is caused due to the movement of electrically charged particles.
Two objects that are oppositely charged will have a magnetic force of attraction, whereas two objects that have the same charge will have a magnetic force of repulsion.
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Your question is incomplete. The full question probably might be:
Which of the following is an example of a non-contact force?
(a) The force exerted by us to lift a bucket
(b) push a stationary car
(c) The force exerted by magnets
(d) Force due to friction
what dose the MA of 4 mean?
Answer: The mechanical advantage of a machine is 4. ... ... So MA = 4 means that for example if you apply 100 N then your machine will multiply that force and generate 400 N.
Explanation:
Help wanted, if you could further explain that would help a lot too.
If the function of an aquaporin is inhibited, how would the transport of water into the cell be affected? (3 points)
A. Water molecules will no longer be able to cross the cell membrane.
B. Water molecules will move across the cell membrane at a much slower rate.
C. Water molecules will only be able to cross the cell membrane by active
transport
D. Water molecules will move across the cell membrane at a faster rate with late regulation from the aquaporin.
Answer:
D. Water molecules will move across the cell membrane at a faster rate with late regulation from the aquaporin.
If the function of an aquaporin is inhibited, water molecules will move across the cell membrane at a much slower rate. Thus, the correct option for this question is B.
What is the function of Aquaporin?The fundamental function of most aquaporins is to conduct the transport of water molecules across the cell membrane with respect to osmotic gradients that are significantly constructed by active solute transport.
Aquaporins are transmembrane proteins that remarkably form the channels and facilitate the rapid transportation of water molecules in both directions of the cell membrane.
If the function of an aquaporin is inhibited, the water movement is facilitated by diffusion also. So, a slow rate of water movement is carried out in the absence of aquaporins.
Therefore, water molecules will move across the cell membrane at a much slower rate, if the function of an aquaporin is inhibited. Thus, the correct option for this question is B.
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DNA Polymerase makes a copying error in a gene and an additional base
gets put into that gene. Which of the following is the most reasonable
result? *
1. The codons on the mRNA transcript contain an extra base which causes the amino
acid chain to not make the desired protein.
2. This causes RNA polymerase to transcribe the gene backwards.
3. The causes RNA polymerase to not recognize the gene and therefore no transcription
takes place.
4. The RNA polymerase recognizes extra bases and won't transcribe them.
Answer:
1. The codons on the mRNA transcript contain an extra base which causes the amino
acid chain to not make the desired protein.
Explanation:
Then error will make it not to produce the required output
pls like
Which of the following changes demonstrates a chemical property? *
O A substance breaks in half
A substance combusts (burns)
O A hammer bounces off a substance
O A substance floats in water

Answer:
The correct answer is B. Combustion is a chemical change. When a substance is burned, it forms new substances. Therefore, combustibility is a chemical property because it can only be observed when a substance undergoes a chemical change.
Explanation:
Hope that helps!
Answer:
The answer would be "A substance combusts (burns)".
Explanation
All of the other options are basic physical changes that don't alter the substance on a molecular level, whereas burning a substance permanently changes the molecular makeup.
How could you test your hypothesis?
Find the total mass of the water and the dry
pasta, then cook the pasta and measure the
mass of the cooked pasta and the water in
which it is being cooked.
Find the mass of the dry pasta, then cook the
pasta, drain it, and find the mass of the
cooked pasta.
Answer:
Explanation:
Find the total mass of the water and the dry pasta, then cook the pasts and measure the mass of the cooked pasta and the water in which it is being cooked.
please help need to be done now will give brainiest and 50 points
Part 1
Draw and label your model of ATP:
Part 2:
Draw and label your model of ADP:
Draw and label your model of AMP:
Answer:
I drew it on a paper which I attached on the bottom
ATP is Adonine Tri-Phospate, meaning 3 phosphates, Di means 2, and AMP means 1
Compounds that contain carbon are called
Answer:
I think organic compounds
Explanation:
To become a virus, you only need 2 parts. One is Genetic Material or Genome (DNA or RNA) to
replicate it and the
or Protein Coat which protects the genome from digestive
enzymes. (Answer in lowercase) *
Answer: true
Explanation:
easy apes question help pls
Answer:community 3
Explanation:
help!
answer the following questions regarding the organism that the product is derived from (reasonable guesses or
speculation is ok):
1. What is the organism?
2. Where does the organism live?
3. Briefly characterize the ecosystem that the organism lives in.
4. Provide one example of how the organism depends on another organism.
5. What are some threats to the organism in the ecosystem?
Speculate on how your life would be affected if the organism became extinct.
Answer:
1. An organism is a individual animal, plant, or single-celled life form.
2. Habitat, place where an organism or a community of organisms lives, including all living and nonliving factors or conditions of the surrounding environment. Like a forest, lake, coral reef, desert, towns or cities.
3. An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors are animals, trees, plants, and abiotic factors are things that have never been alive. So rock rivers, ponds, man made objects.
4. When a organism depends on another is called symbiotic relationships. There are three different types of symbiotic relationships: mutualism, commensalism, and parasitism. Mutualism: both partners benefit. An example of mutualism involves goby fish and shrimp. The shrimp maintains a burrow in the sand in which both the fish and shrimp live. When a predator comes near, the fish touches the shrimp with its tail as a warning. Then, both fish and shrimp retreat to the burrow until the predator is gone.
5. Pollution(water&air), deforestation, UV Radiation, invasive species.
If an organism went extinct the next generation won't ever be able to see those organisms. If an organism we eat went extinct we would have one less food source which is something that really does not need to happen in today world.
Explanation:
Answer: (Answers may vary.)
I chose the product cotton pants. The responses are:
Cotton plant
Southeastern North America
The plant lives in soil in an agricultural field.
The cotton plant requires bees for pollination.
The plant may be threatened by diseases such as cotton leaf curl disease, pests such as aphids, and drought.
If cotton became extinct, my pants would have to be made of some other material, such as linen or wool, which would feel quite different. This would be a big adjustment for me because I am used to wearing cotton pants almost every day.
Explanation: edmentum/plato
What are 2 characteristics of primary succession, secondary succession. What are 2 Characteristics they share in common?
Answer: Two different types of succession, primary and secondary, have been distinguished. Primary succession occurs in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. Secondary succession occurs…
Explanation:
2.20 Unit 2 Test Dynamic Earth Part 2, 100 Points Brainliest somebody please help me I didn't have time to study I don't want to fail this class please
A seismograph station is located several thousand kilometers from an earthquake’s epicenter.
Explain the order that the S and P waves will arrive at the station.
By using the characteristics of the S and P waves explain why they arrive in the order they do.
Answer:
The P waves will arrive at the station first because they travel the fastest at an average of 6.1 km/s. The S waves will arrive second, traveling slower at approximately 4.1 km/s. The two different waves would have arrived 3 minutes apart, based on the S-P Wave Interval Chart.
Explanation:
Answer:
The P waves will arrive at the station first because they travel the fastest at an average of 6.1 km/s. The S waves will arrive second, traveling slower at approximately 4.1 km/s. The two different waves would have arrived 3 minutes apart, based on the S-P Wave Interval Chart.
Explanation: