Microfilaments
Microfilaments are fine, thread-like protein fibers, 3-6 nm in diameter. They are composed predominantly of a contractile protein called actin, which is the most abundant cellular protein. Microfilaments' association with the protein myosin is responsible for muscle contraction. Microfilaments can also carry out cellular movements including gliding, contraction, and cytokinesis.
Microtubules
Microtubules are cylindrical tubes, 20-25 nm in diameter. They are composed of subunits of the protein tubulin--these subunits are termed alpha and beta. Microtubules act as a scaffold to determine cell shape, and provide a set of "tracks" for cell organelles and vesicles to move on. Microtubules also form the spindle fibers for separating chromosomes during mitosis. When arranged in geometric patterns inside flagella and cilia, they are used for locomotion.
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Describe Range: (idk)
Answer:
Well if you mean species, it means the range or distribution of a species is the geographical area or habitat where the species live.
Explanation:
It would help if you could be more specific, But i hope it helps!!
What are the reasons for unequal distribution of natural resources?
geological processes
geological structure
geographic location
geographic features
Answer:
The answer for your question is : geographic location
Answer:
Geological Processes and Geographic Location
Which series of processes CANNOT
happen in the water cycle?
Answer:
d...
Explanation:
Alpha helix and pleated sheets are example of _________ Protein Folding.
Answer:
Secondary structure proteins folding
Explanation:
Alpha helix and pleated sheets are basically two types if secondary structure of Proteins.
Match each scientist to the observation she is most likely to make
Need help with this emt class it hard pls smart people only
Answer:
Coast Guard
Explanation:
Describe how technology causes change
Answer:
technology causes change because it will lead to new conclusions in science which will lead to changes in the environment
Explanation:
why you add water to Sulphur dioxide and put a blue Litmus Paper in it why does it turns red
Answer:
Because it produce weak acid and acid turns blue lithmus paper to red.
Explanation:
Sulphur dioxide SO2 react to added water to produce acidic product.
When sulphur dioxide react with water, it produce sulphurous acid H2SO3 which is a weak acid.
One of the properties of acid is that they turn blue lithmus papper to red, because the product is an acid, blue lithmus papper turns to red.
A proton the nucleus. A neutron the nucleus. An electron the nucleus.
Answer:
atom iscomposed of three sub-atomic particles
proton
neutron
electron
Protons and neutrons make up the nucleus of the atom, a dense and positively charged core, whereas the negatively charged electrons can be found around the nucleus.
Explanation:
Answer:
proton
neutron
electron
Explanation:
Pick up line for chlorplast?
Are you a chloroplast? Because you chlorophyll my heart. <33
There's this one:
"are you a chloroplast? Because you chlorophyll my heart <3"
Embryonic similarities persist for longer between organisms
that have a closer common ancestor.
Answer:
True
Explanation:
Species which are more closely related have fetuses that look similar.
Homologous pairs separate in meiosis _________, and sister chromatids separate in meiosis _________.
Answer:
Meiosis I
Meiosis II
Explanation:
Homologous pairs of cells are present in meiosis I and separate into chromosomes before meiosis II.
In meiosis II, these chromosomes are further separated into sister chromatids.
Meiosis I includes crossing over or recombination of genetic material between chromosome pairs, while meiosis II does not.
An atomic bomb goes off when you ___ atom
What are the functions of sugars
Answer:
the provide the energy u need
Explanation:
7The [BLANK] cell's function is to send electrical impulses around the body.
Answer:
nerve
Explanation:
Your neurons carry messages in the form of electrical signals called nerve impulses. ... Over half of all the nerve cells in your nervous system do not transmit any impulses. These supporting nerve cells are located between and around your neurons to insulate, protect and nourish them.
What do you think some density-dependent limiting factors might be?
Answer:
Density-dependent limiting factors include competition, predation, herbivory, parasitism and disease, and stress from overcrowding.
Explanation:
Hope it helps!
Answer:
africa
Explanation:
mvpinovnob
Most carbohydrates in the human body are-
A. used as building blocks for proteins
B. used as catalysts for reactions in cells
C. consumed as a source of energy
D. not easily absorbed into the bloodstream
Answer:
C/D
Explanation:
Most of the carbohydrates in the foods you eat are digested and broken down into glucose before entering the bloodstream. Glucose in the blood is taken up into your body's cells and used to produce a fuel molecule called adenosine triphosphate (ATP) through a series of complex processes known as cellular respiration.
(SUMMARIZED ANSWER: One of the primary functions of carbohydrates is to provide your body with energy. Most of the carbohydrates in the foods you eat are digested and broken down into glucose before entering the bloodstream)
Which type of molecule that can be found in living things lacks carbon atoms? Protein Carbohydrates Fat Water
Answer:
d
Explanation:
Which of the following might have influence whether or not a comet will collide with a nearby planet
-The ice and dust the comet is composed of
-The composition of the planets atmosphere
-gravitational attraction between two celestial objects
-none of the above
1,765 round to nearest hundred
Answer:1,700
Explanation:
Answer:1770
Explanation:
i used siri :)
Which one of the following is true of the structures labeled D in the cell membrane?A.They are membrane proteins.B.They are hydrophilic.CThey are carbohydrates.D.They are hydrophobic?
The structure labelled D in the cell membrane is hydrophilic in nature. That is option D.
What is phospholipid bilayer?Phospholipid bilayer is defined as the part of the cell membrane that is made up of two phospholipid layers which include:
Hydrophobic layer: The interior which is water hatingHydrophilic layer: The exterior that is water loving.Therefore, from the diagram, the structure labelled D is the interior part of the phospholipid bilayer which is hydrophilic in nature.
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In science class, Maria observes a white-colored cut flower. She sees that the petals turn red when the flower is sitting in a vase that has
red-colored water.
She forms a hypothesis that the color reaches the flower through the stem. What should Maria do to confirm the hypothesis?
A. She should repeat the experiment with the same type of flower and photograph the changes over time.
B. She should ask her science teacher about the flower to confirm whether her hypothesis is correct.
C
She should try the experiment with a potted plant with roots and observe any color changes.
D
She should repeat the experiment with a different species of plant and photograph the changes.
Answer:
D
Explanation:
Its d I think tell me if it's wrong If it is I'm sorry
Answer:
A.
She should repeat the experiment with the same type of flower and photograph the changes over
Explanation:
4) Why are these chromosomes in pairs? From where do they come?
Answer:
Chromosomes are long strands of DNA mixed with proteins. They come in pairs, one male (from the father) and one female (from the mother).
help please
answer these 3 questions
Answer:
1)D.Sucrose
2)B. Dna and Rna
3) A. Enzymes shape will be different
Explanation:
I really hope this helps
Which of the following is a necessary reactant for cellular respiration to occur? (2 points) a Carbon dioxide b Nitrogen c Oxygen d Water
Answer:
C.
Explanation:
"Cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water."
Answer:
its oxygen!
Explanation:
I just took this test on FLVS and this was a question, I answered with Oxygen and ended up with a 100% test score. Hope I could help!
What term best describes region “B” of the phospholipid model above?
Answer:
Hydrophobic
Explanation: The phospholipid has a chagred head (Phosphate region) and hydrophobic tails. Lipids are usually nonpolar and hydrophobic. That is why the tails are oriented towards the interior of the membrane.
The two parts 3 and 4 in the region B of the phospholipid model are 3- saturated fatty acids and 4- unsaturated fatty acids.
What is phospholipid model ?
Phospholipids are a class of lipids having significant role in the construction of cell membranes. It is composed of a hydrophilic head with a phosphate group and a hydrophobic tail with fatty acids end.
The fatty acids present in the phospholipid bilayer , are of two types, Saturated and unsaturated. Fatty acids chains without any double bonds or triple bonds are called saturated fatty acid.
Whereas, fatty acid chain with double bonds or triple bond are called unsaturated fatty acids. These two fatty acids chain creates the hydrophobic tail of the phospholipid bilayer.
Hence the region marked as B is saturated and unsaturated fatty acids.
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all the living and nonliving things in a selected area form a (an)?
Answer:
All the living things together in an ecosystem form a community.
Explanation:
Evidence 2 - Unknown Substance Investigation A group of scientists is given a sample of an unknown substance. They are asked to gather evidence to determine whether the substance is living or nonliving. The students take a small sample of the substance and observe it using a microscope. Part A: State and define two properties of life present in the substance that could be observed to indicate whether it is living or nonliving.
Answer:
Water , Oxygen
Explanation:
Explain why
What makes life on the Earth possible?
Answer:
The balance between the biosphere, geosphere, hydrosphere, and atmosphere make life on Earth possible. Each component of the Earth system interacts with the others to exchange matter and make life possible.
Thats the answer
Explanation:
The factors which makes life on Earth possible are: energy, carbon, water in liquid form, and various other elements such as nitrogen, phosphorus, hydrogen, and most important oxygen.
What are the conditions on Earth?
Earth has a gaseous atmosphere which is responsible for making life possible on the planet. It is the third planet from the Sun. The atmosphere on Earth contains water vapor which helps to moderate our daily temperatures on the planet. The atmosphere contains 21% oxygen, which is necessary for breathing of organisms, and 78% nitrogen.
Earth is present at the right distance from the Sun, which keeps it protected from the harmful solar radiations coming from the sun by the magnetic field, keeps it warm by an insulating the atmosphere, and also has the right chemical ingredients for life, including water and carbon.
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A population is growing at a rate of 2, 4, 8, 16, 32. Which type of growth does this describe? linear logistic exponential negative
A population that is growing at a rate of 2, 4, 8, 16, 32 shows a type of growth known as exponential growth.
What is exponential growth?Exponential growth is a type of growth where quantity is increased in an order of magnitude for a given period of time.
In biology, exponential growth is seen in populations having sudden expansions.In conclusion, a population that is growing at a rate of 2, 4, 8, 16, 32 shows a type of growth known as exponential growth.
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