Which of the following best describes a eukaryotic cell?
O A. A cell that is not surrounded by a cell membrane
OB. A cell that does not contain any membrane-bound organelles
O C. A cell that contains a membrane-bound nucleus
O D. A cell that is surrounded by a rigid cell wall
Answer:
C would be the answer.
Explanation:
Prokaryotic cells have no nuclues while Eukaryotic cells do have a nucleus.
Sorry if my answer isn't detailed, hope it helps!
Answer:
C
Explanation:
A: Not right because all cells must have a membrane.
B: Not right because the eukaryotic cell actually has many organelles in it's membrane and inside its membrane.
C: Correct because it has a nucleus within the barrier of its membrane.
D: Not right because not all eukaryotic cells have a cell wall. Plant cells do, but animal cells do not. Both are eukaryotic.
Edited to fix grammatical and spelling errors
which meal would provide the most energy as well as the material needed to build muscle
A. Salads and oils
B. Bread and butter
C. Candy and rice
D. steak and potatoes
Answer:
D.
Explanation:
Termites are insects that feed on wood, which contains cellulose. Scientists have observed that some termite species prefer wood that has been attacked by fungi. Construct an explanation for this observation.
Answer:
The termites and the fungi possess a symbiotic relationship because they rely on each other for survival. The fungi digest cellulose (that the termites can't digest) from the wood, and in turn, the termites provide the fungi an environment where they can grow and prosper. This explains why termites prefer a wood that was inhabited by fungi. This symbiotic relationship explains why termites prefer the wood that is inhabited by fungi.
Explanation:
(see above)
The best explanation for this observation is that Termites and the fungi engage in symbiotic relationship.
What is symbiotic relationship?Symbiotic relationship is a mutual relationship that occur between two organisms in which one organism benefits and the other organism neither benefit or loss.
Termites benefit by getting the nutrient they desired fro. the wood eaten by fungi.
Therefore, The best explanation for this observation is that Termites and the fungi engage in symbiotic relationship.
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The chart below describes the effect of physical changes on water.
Heating ice Heating water Cooling water Cooling water vapor
molecular motion increases molecular motion decreases molecular motion decreases molecular motion decreases The information in the chart is incorrect under the heading?
Answer:
B. Heating Water
Explanation:
Well I said so and I am never wrong XD JK. Because the molecular motion increases and it doesn't decrease. I would go on a longer explanation but I don' have the time so mark me branliest plz. HAVE A MERRY CHRISTMAS AND A HAPPY NEW YEAR!!
The physical change of heating water increases molecular motion which is incorrectly displayed in the table.
What are physical changes?Physical changes are defined as changes which affect only the form of a substance but not it's chemical composition. They are used to separate mixtures in to chemical components but cannot be used to separate compounds to simpler compounds.
Physical changes are always reversible using physical means and involve a change in the physical properties.Examples of physical changes include melting,boiling , change in texture, size,color,volume and density.Magnetism, crystallization, formation of alloys are all reversible and hence physical changes.
They involve only rearrangement of atoms and are often characterized to be changes which are reversible.
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Nucleotides are to ___
as ____
are to proteins.
O nucleic acids; amino acids
O amino acids; polypeptides
O genes; enzymes
O polymers; polypeptides
Answer:
Your answer is A). Nucleotides make up nucleic acids like DNA and RNA, and a protein is a chain of amino acids.
Nucleotides are to nucleic acids as amino acids are to proteins.
In the given fill-in-the-blanks, we are required to determine and identify which parts correspond with the given words.
Nucleotides are a "nucleoside and a phosphate" combination constituting the monomeric unit of nucleic acids. They have numerous metabolic roles and are also essential for DNA replication and RNA transcription. Amino acids are the building blocks of proteins and are an important component of our bodies. As given above, we can now ascertain that nucleotides and nucleic acids are related while amino acids are to proteins.With the requirement to join the corresponding 'elements' with each other, we can understand and identify the words and the blanks by determining the constituent of each element. And by doing that, we can safely say that nucleotides make up nucleic acids like amino acids are for proteins. Thus, the correct answer is the first option.
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Why are polygenic diseases less suited to gene therapy?
Answer:
Polygenic therapies are more likely to show unintended effects in other regions of the genome likely resulting in harmful diseases.
Explanation:
Gene therapy involves biotechnological techniques that add or remove gene sequences in the genome. These are typically used in eliminating harmful genes that cause genetic diseases or disorders and are generally thought to improve an individual's quality of life.
Polygenic traits are controlled by several genes. Similarly, polygenic diseases may be caused by variations in several gene sequences. These include hypertension, heart disease, and diabetes. Polygenic therapies are more likely to show unintended effects in other regions of the genome, leading to other deleterious disease-causing effects.
Which process wears away tall sandstone rock formations due to wind?
abrasion
deflation
impact
plucking
PLEASE HELP ASAP
Answer:
the answer is a abrasion
Explanation:
Answer: A, abrasion
Explanation: I got it right on Edge (:
Based on the video, do you think corals are a keystone species in the ecosystem? Support your answer with evidence from the video.
Answer:
Yes, i think this because in the video one of the experts explained that coral is required to keep the entire ecosystem in balance and this attaches to the keystone species.
Explanation: I put this in my own words so you may copy and paste .
Yes, they are. Maria, one of the coral experts in the video, stated that coral is required to keep the entire ecosystem in balance, which is definitely true for keystone species.
Answer:
Explanation:
sample
What are the inputs of photosynthesis
Answer:
Carbon dioxide , Sunlight , and water.
Explanation:
A structure has these features:
It is inside a prokaryotic cell.
It's a very small circular DNA fragment.
It is separate from an organism's actual chromosomes.
What structure is this?
a) telomere
b) nucleus
c) chromatid
d) plasmid
Answer: D) plasmid
Explanation:
Which of the following is NOT true of metallic minerals? *
A.)They have shiny surfaces.
B.)They do not conduct heat well.
C.)They do not let light pass through them.
D.)They can be processed into metals that do not rust.
Answer: They do not conduct heat well
Explanation:
Who was the first to think there was something else but the body? what did he call it?
Answer: His name was Rene Descartes i forgot what he called it
Explanation:
Which of the following is true of carbon?
(A) Carbon is present in all organisms and in the atmosphere.
(B)Carbon moves from consumers to producers.
(C)Carbon must be fixed by bacteria before other organisms can use it.
(D)Carbon can only be released from dead organisms by decomposers.
WILL GIVE BRAINLIEST TO FIRST ANSWER :}
Answer: A
Explanation:
Answer:
the answer is A:)))))))))
One of the satellites of Pluto has an orbit like _____.
the satellites of Jupiter
the Earth's moon
the satellites of Uranus
Titan
Answer:
THE SATELLITES OF URANUS!!
Explanation:
The other answer was WRONG! One of the satellites of Pluto has an orbit like the satellites of Uranus.
Here is a quote from my textbook:
Therefore, the moon remains over one side of Pluto all the time and can never be seen from the other side of Pluto. Like the satellites of Uranus, Charon's orbit is perpendicular to Pluto's orbital plane.
Answer:
Satellites of Uranus is the answer!!! So the other person was correct!!!
Explanation:
-leeknowishawt
How does niche affect organisms populations in an ecosystem
Answer:
Without the ecological niches, there would be less biodiversity, and the ecosystem would not be in balance.
Explanation:
A species' ecological niche can be defined as the range of resources and conditions allowing the species to maintain a viable population a more simple definition is if two species have the same niche, one species will exclude the other.
why leaves in sunlight often have thicker cuticles than leaves grown in shade?
Answer:
The large leaves of the shade shoot provide a larger area for trapping light energy for photosynthesis in a place where light levels are low. Plants subjected to low light intensity often grow rapidly producing long internodes (the part of the stem between each leaf).
Explanation:
What is the difference between Eukaryotic and Prokaryotic ?
Answer:
eukaryotic cells have a nucleus and membrane-bound organelles. prokaryotic cells have neither.
Explanation:
The p subshell can hold up to eight electrons in an atom.
O True
O False
Answer:
True
Explanation:
In this circuit, there is a resistance of 100 Ω and a current of 0. 05 A, what is the voltage?
Answer:
5V
Explanation:
Given parameters:
Resistance = 100Ω
Current = 0.05A
Unknown:
Voltage = ?
Solution:
The voltage is the force that drives current through a circuit. According to ohms law, it is related to current and resistance using the expression below;
V = IR
Insert the parameters and solve;
V = 100 x 0.05 = 5V
Yellowstone National Park has 124 wolves living in it.
Answer:
[tex]\huge\boxed{B}[/tex]
Explanation:
You basically have to divide 124 and 3472.
124 ÷ 3472 = 0.0357
0.0357 wolves/mi^2
Therefore your answer would be letter b.
Good luck!~
What is the fastest bird?
The Peregrine Falcon is the fastest bird with top speeds of 186 mph when swooping or diving.
Jenna's age Jessica's age
today x x + 5
in 5 years x+5
5 years ago x + 5 - 5
Equality x + 5 = x + 5 - 5
=> x + 5 = x
The equation is x + 5 = x
That equation has not any solution, because it reduces to 5 = 0, which is an absurd.
So, the conclusion is that information given by Jenna is wrong.
It is logical: if the difference of the ages is 5, in five years Jenna will have 10 years more than what her sister had 5 years ago, no 5 as she told Jessica.
Answer:
Here ya go
Explanation:
the law of conservation of energy only applies to physics True or False
Answer:
true
Explanation:
The law of conservation of energy only applies to physics. The given statement is true.
What is law of conservation of energy?
"The law of conservation of energy states that energy cannot be created or destroyed, but it can be transformed". The law of conservation of energy is one of the fundamental laws of physics, and it states that energy cannot be created or destroyed, however it can be transformed.
We have many examples in daily life that shows the application of this law. An example is when an object falls to the ground: initially, the object has gravitational potential energy, and when it falls down, this potential energy is converted into kinetic energy (because the object gains speed).
There are some situations, however, where energy seems to be created or destroyed for example, during a car accident, it seems that the whole initial kinetic energy of the car has been destroyed when the car stops after the crash. This is not true in fact, the kinetic energy of the car has just transformed into thermal energy and sound energy during the crash.
Therefore, The law of conservation of energy only applies to physics. The given statement is true.
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How do Humans control water content levels?
I need help on this too
A child has been born prematurely and is experiencing severe asthma like symptoms. Exposure to what most likely affected cell differentiation in the growing embryo
Answer: Carbon monoxide
Explanation:
Carbon monoxide is a gas that is tasteless, colorless, and odorless, that is formed when wood, charcoal, gasoline is burnt.
When breathed in, carbon monoxide is harmful as it displaces the oxygen that is in the blood and this leads to the deprivation of the brain and other vital parts of the body of the oxygen that's is required for daily functioning.
Exposure to carbon monoxide is most likely affected cell differentiation in the growing embryo. When the pregnant woman inhales smoke, this affects the oxygen in the baby's bloodstream as it's being replaced by carbon monoxide and there's shortage of oxygen.
This affects the cell differentiation in the growing embryo and can lead to the child been born prematurely and can also lead to severe asthma like symptoms.
Do you think it would be a good idea if all the bumper cars in a ride were to move at the same speed? Use Newton's Law of Motion to support your response.
Answer:
Sorry, I didn´t see this one, maybe you already have the answer, if not: Yes, it is a good idea, because it balances the impact forces of every bumper car.
Explanation:
Yes, it is a good idea, because it balances the impact forces of every bumper car.In this phenomenon Newton's Law of motion has been used to prove this incident.
What is Newton's second law?According to newton second law of motion force is always equal to rate change of momentum. S.I unit of mass is Newton.
So, Force basically depend on two factor i.e mass and velocity
In first case if mass is constant and velocity is variable then
Force = mass × acceleration.
And if mass is variable and velocity is constant then it's called thrust force.
Thrust force = Rate change of mass × velocity.
S.I unit of mass is Newton.
Density has been defined as mass per unit volume it means that mass is present in one meter cube.
S.I unit of density is kg/meter^3.
Mathematically
Density = Mass/Volume.
Momentum has been product of mass and velocity. It is a vector quantity and it's S.I unit kg x meter/sec.
Therefore, Yes, it is a good idea, because it balances the impact forces of every bumper car.In this phenomenon Newton's Law of motion has been used to prove this incident.
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Describe the alternation of generations in plants. (2 points)
Answer:
Alternation of generations (also known as metagenesis) is the type of life cycle that occurs in those plants and algae in the Archaeplastida and the Heterokontophyta that have distinct haploid sexual and diploid asexual stages. ... The haploid spores germinate and grow into a haploid gametophyte.
Explanation:
yw
Answer:
Alternation of generations describes a plant's life cycle as it alternates between a sexual phase, or generation and an asexual phase. The sexual generation in plants produces gametes, or sex cells and is called the gametophyte generation. The asexual phase produces spores and is called the sporophyte generation.
Explanation:
What is it that the molecules are trying to achieve as a result of passive
transport?
Answer:
The molecules are trying to achieve equilibrium.
Explanation
In cells, molecules will migrate through the phospholipid bilayer during passive transport, a form of simple diffusion that does not use the energy currency, ATP.
This layer serves as a selectively-permeable membrane; its hydrophilic heads are drawn to water (seen looking outward), while its hydrophobic water-repellent tails face each other, allowing water molecules to diffuse down the concentration gradient through the membrane.
This typcally continues til the molecules gain equilibrium or balance. At equilibrium, molecules neither enter nor leave the cell through passive transport.
A student measures the mass of an 8 cm 3block of brown sugar to be 12.9 g. What is the density of the brown sugar?
Answer:
I hope this help's
Explanation:
