Answer:
Diffusion and osmosis don't require the cell to expend any of its own energy, as they are passive processes. As we know both are passive processes and yet (in basic, short terms) diffusion is higher to lower and osmosis is lower to higher, so movement to concentration doesn't determine whether it is active or passive.
Explanation: ur welcome
Which is a correct statement about mutations?
A. Mutations are always bad.
B. Mutations ensure alleles never change.
C. Mutations increase variety in a population.
D. Mutations decrease variety in the population,
Patients wear protective gear when being X-rayed. What substance is being protected directly from mutation?
Answer:
Radiation has a potential of causing germ cell mutations that may be passed on to future generations.
Explanation:
i think so, hopefully this helps;(
Ionizing radiation damage cells and cause double-strand breaks that let more DNA in. These additional fragments of DNA find their way to the nucleus and cause cellular mutations. Protective gears are worn to prevent this.
What are X-rays ?X-rays are a form of electromagnetic wave radiation. Using X-ray imaging, your body's interior can be visualized. The photos depict the various bodily parts in various shades of black and white. This is due to the fact that various tissues absorb radiation in different ways.
Ionizing radiation, a type of radiation that x-rays create, has the ability to destroy living tissue. This is a risk that gets worse the more exposures someone has over the course of their lifetime. However, exposure to radiation normally carries a low risk of acquiring cancer.
Therefore, protective gears are worn during x-rays to avoid mutations.
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Plants can provide the materials that animals use in
cellular respiration, and animals can provide some
materials needed by plants for photosynthesis. This
image shows the relationship.
According to the diagram, which of these materials
does cellular respiration provide that plants can use in
photosynthesis?
A.) Chemical energy
B.) carbon dioxide
C.) chloroplasts
D.) mitochondria
Answer:
I think B.) carbon dioxide:)
Which of these can a wave carry from one place to another?
energy
matter
particles
water
Answer:
energy
Explanation:
hope its is correct!!
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Food webs show the feeding relationships among different organisms.
According to the food web shown above, what is the relationship between the wheat, the grasshopper, the frog, and the snake?
A.
The snake directly consumes the frog, the grasshopper, and the wheat.
B.
The grasshopper consumes the wheat, and the snake consumes the frog, but there is no connection between the other organisms.
C.
The wheat is directly consumed by both the grasshopper and the frog, and the frog and the grasshopper are directly consumed by the snake.
D.
The wheat is consumed by the grasshopper, the grasshopper is consumed by the frog, and the frog is consumed by the snake.
Answer:
d
Explanation:
Which of the following is true of enzymes
Answer:
Explanation:
A. Enzymes increase the rate of chemical reaction by lowering activation energy barriers. Enzymes are biological catalysts. Like all catalysts, they function by lowering the activation energy of a chemical reaction, which speeds the rate of the reaction.
Match each term with its description.
Answer: 1:B 2:A 3:C 4:D
Explanation:
What are the basic name of the elements that make-up a Macromolecule?
Answer:
Carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur.
Explanation:
There are around 25 different elements that make up a Macromolecule bit the six most common are carbon, hydrogen, nitrogen, oxygen, and sulfur.
What are the genotypic and phenotypic distributions for the F1 and F2 generations from a cross between a chick with black (BB) feathers and chicken with white (WW) feathers if the color is determined by alleles that show codominance. The heterozygote is an erminette chicken, which is black and white speckled.
Answer:
Please find the punnet square to this question as an attachment
F1 generation:
genotype = BW
Phenotype = Erminette offsprings
F2 generation:
genotype = BB (1): BW(2): WW(1)
Phenotype = 1 Black, 2 Erminette, 1White
Explanation:
This question involves a gene coding for feather color in chickens. The allele for black feathers (B) is codominant with the allele for white feathers (W) to form an erminette chicken (black and white speckles).
According to this question, a cross between a chick with black (BB) feathers and chicken with white (WW) feathers will result in an all erminette chicken (BW) in the F1 generation (see attached image)
Also, in the F2 generation got by self-crossing the Erminette genotype in the F1 generation (BW), the following genotypic and phenotypic ratios are observed:
Genotypic ratio = BB (1): BW(2): WW(1)
Phenotypic ratio = 1 Black, 2 Erminette, 1White
When a person eats, the brain signals the stomach to start breaking down the food. Which two 1 point
systems are involved in this process?*
Circulatory and respiratory
Nervous and digestive
Digestive and excretory
Muscular and digestive
Answer:
Digestive and excretory I think
Explanation:
Chromosome pair 23 are the sex chromosomes and are responsible for determining the gender of a human. The large chromosome is an X chromosome, and the small chromosome is the Y chromosome. If there are two X’s, then the individual is a female. If there is an X and Y, then the individual is a male.
Answer:
This is true.
Explanation:
More commonly, an X chromosome will die and get replaced by a Y chromosome (all humans start off as females). When this occurs, the substitute Y chromosome causes changes in the zygote to occur; they begin developing male genitalia (i.e. penises, testicles, prostates, etc.).
Which biomolecule do mitochondria break down in our body?
Answer:
acetyl CoA
Explanation:
Pyruvate and fatty acids enter the mitochondrion (bottom) and are broken down to acetyl CoA.
Some problems with the digestive system make it very difficult for the body to digest enough food. Why would it be harder to exercise when you have a digestion problem like this?
Your cells would not work as well because they would not have energy to break down oxygen from the air.
Your cells would not work as well because they would not have energy to break down oxygen from the air.
You would not get any of the molecules your cells need to exercise.
You would not get any of the molecules your cells need to exercise.
You would need to breathe in a lot more air because your body would have fewer molecules from food.
You would need to breathe in a lot more air because your body would have fewer molecules from food.
Your cells would not work as well because even though they would have enough oxygen molecules from the air, they would not have enough glucose molecules from food.
Answer:
last one
Explanation:
because you having digestive have nothing to do with your oxygen and breathing
Problems with the digestive system make it very difficult for the body to digest enough food, and it is harder to exercise with digestion problems like this because cells would not work as well because they would not have enough glucose molecules, which is the last option.
What is the function of the digestive system during exercise?
Exercise is important for the body, and the digestive system plays an important role in it because the digestive system breaks down the food, and then the simplified food enters the blood and is then taken up by the cells for the different activities. If there are any issues with the digestive system, the food will not be well absorbed into the cells, and no energy will be produced for the exercise.
Hence, the answer is that cells would not work as well because, even though they would have enough oxygen molecules from the air, they would not have enough glucose molecules from food. The last one is the true fact.
Learn more about the digestive system here.
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What factors can affect how enzymes work?
Explanation:
Enzyme activity can be affected by a variety of factors, such as temperature, pH, and concentration. Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.
Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base in a mRNA strand, but during translation the mRNA strand still creates the same protein. Which type of mutation is responsible for the change in the mRNA base?
Answer:
silent mutation
Explanation:
Answer:
The answer is silent mutation
Explanation:
Good luck!!!
Which details could be included in a biography of Frida Kahlo? Check all that apply.
a description of the first self-portrait Kahlo painted
a story about Kahlo’s childhood pet
an account of the accident in which Kahlo was seriously injured
Kahlo’s impressions of other artists of the time period
a description of a cousin Kahlo never met
an example of how Kahlo influenced artists who came after her
Answer:
The details that could be included in a biography of Frida Kahlo are:
1. a description of the first self-portrait Kahlo painted
3. an account of the accident in which Kahlo was seriously injured
6. an example of how Kahlo influenced artists who came after her
Explanation:
Frida Kahlo was a Mexican painter. She was born in Coyoacan, which at that time was a small bus stop on the outskirts of Mexico City. Her father was a painter and photographer of German-Jewish origin.
Kahlo began painting after a serious traffic accident in 1925. Her lifelong pain after the accident was the subject of many of her images. In addition to personal experiences, she also describes how hard life women lived. She was also influenced by the culture of the Mexican indigenous people, and portrayed them in bright colors, with a mixture of realism and symbolism.
Answer:
1 3 4 6
Explanation:
what is an example of primary ecological succession?
a. plants and animals invading an abandoned crop field
b. lichen growth on rocks
c. minerals spurring rapid plant growth
d. mangroves stabilizing the soils on tropical coasts
Answer:
mangroves stabilizing the soils on tropical coasts.
In what ways are active transport and passive transport similar?
Answer: While active transport requires energy and work, passive transport does not.
Explanation:
The process of photosynthesis converts carbon atoms from carbon dioxide into
What major benefit does this arrangement of the membrane provide to the cell?
Answer:
The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
Explanation:
Answer:
The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.
Explanation:
facts, figures, and other evidence learned through observation are called
Answer:
Data- the facts, figures, and other evidence gathered through observations.
Explanation:
can someone help me with this? ty
Answer:
Explanation:
time management:
pros- gets more things done in a timely manner.
cons- more planning and time consuming.
note taking:
pros- memorization technique, skills, penmanship.
cons- boring, time consuming, effort.
doing advanced readings:
pros- challenges you, gets you better.
cons- can be hard and frustrating.
listening actively:
pros- hear everything the other person is saying.
cons- can get annoying or dont have the time.
managing distractions:
pros- get to focus, set time aside to do something specific.
cons- dont want to do it, takes time away from you doing something else you want to do.
Answer:
its trying to say write down what you think your good at and bad at with for example time management. in time management can you well manage your time? if so is it good like if you get distracted easily or go away for an hour that's not good time management. but if you write yourself a schedule everyday so you know what your gonna do that's good tie management. that'd be a pro and a con. you'd say something around these I am good at making a schedule but for your con you could say I'm just not good at sticking to that schedule. then insight is how much you understand it or if you understand it at all.
Explanation:
hope that helped! sorry for it being so long! :)
What is a likely reason for the change from mitosis to meiosis during reproduction under these conditions?
Mitosis and meiosis are the two types of cell division, which result in the generation of daughter cells. Yeasts are capable of undergoing meiotic and mitotic division under favorable conditions.
The correct answer is:
Option B: Crossing over genes during meiosis increases diversity and the chance of survival of the next generation.
The significance of meiosis can be explained as:
Meiosis is a reduction division, in which the diploid parent cell gives rise to haploid daughter cells.The crossing over of the genetic material of the haploid cells leads to genetic diversity and a higher rate of survival.Meiosis leads to genetic diversity as the data in the parent cells are fused and recombined to give rise to new offspring.Thus, meiosis is an important step in the genetic variation and survival of the organism.
Therefore, option B is correct.
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The movement of energy in an ecosystem can be shown using a:
spider web
web of life
food chain
Answer:
Food Chain
Explanation:
Food chains show where the energy starts and where the energy can end up from all of the consumers´ eating their prey.
Answer:
Food chains and food webs are usually used to display the order of predation and the flow of energy in an environment. The answer is Food Chain
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what is micro organization?
Answer:
micro organisms are small organisms
Explanation:
Micro-Organisms are those organisms which are so Tiny that they can not be seen with the naked eyes but with the aid of an Electron microscope.
hope it helpful
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Weather is an example of
Answer:
heat rain hells kitchen joe klinkler
What caused the chromosomal alteration in the number 21 chromosomes? (LS3.2) A. Part of one chromosome attached to another chromosome B. Some of the genes on a chromosome were reversed C. A duplicated chromosome failed to separate during meiosis D. A part of a chromosome was lost
Answer:
The correct answr is - A. Part of one chromosome attached to another chromosome.
Explanation:
Translocation is one of the chromosome abnormality that cause change in the number of the chromosome. In the translocation a part of the chromosome breaks off and bind or attached to the another chromosome.
The translocation cause various disorderes in individual one of them is Down syndrome which is the result of the alteration of chromosome number 21. In this translocation or specicifically the chromosome portion of chroromosme 14 breaks off and reattaches to the chromosome 21 result in one normal 14 and two normal 21 chromosme so there is trisomy occurs.
Answer:
A duplicated chromosome failed to separate (nondisjunction)
Explanation:
If nondisjunction occurs during meiosis I, homologous chromosomes fail to separate. This produces abnormal gametes that contain two members of the affected chromosome or none. This is why there is an extra chromosome in the 21 chromosomes.
Find the EXACT area of the shaded. The square has a side length of 24 meters.
Answer:
Explanation:
If the entire square is shaded and that 24m being the measurement of just one side just multiply 24 by 24 which is 576[tex]m^{2}[/tex]
If you are saying that 24 is the length of all of the sides combined just divide 24 by 4 to get one side and square it. 6 times 6 and you get 36[tex]m^{2}[/tex]
If a plant cell needs energy for endocytosis, what does it use and where does the energy come from?
Explanation:
Active transport uses energy stored in ATP to fuel the transport. ... Endocytosis methods require the direct use of ATP to fuel the transport of large particles such as macromolecules.
Hope this helps!
If a plant cell needs energy for endocytosis, its use and energy come from- Active transport from ATP.
Endocytosis is an energy-using process by which cells internalize molecules by engulfing them.
Endocytosis needs to use directly ATP to fuel the transport of large particles such as macromolecules, parts of cells that can be engulfed by other cells in a process called phagocytosis.Active transport is the movement of molecules across a cell membrane in the direction against their concentration gradient, i.e., moving from a low concentration to a high concentration and this uses cellular energy.Thus, If a plant cell needs energy for endocytosis, its use and energy come from- Active transport from ATP.
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why is cell division important for one-celled organisms and multi-celled organisms
Answer:
so they can reproduce
Explanation: