Answer:
If the checkpoint mechanisms detect problems with the DNA, the cell cycle is halted, and the cell attempts to either complete DNA replication or repair the damaged DNA. If the damage is irreparable, the cell may undergo apoptosis, or programmed cell death 2.
Explanation:
um i think this is correct. hope this helps and have a nice day
-KindnessMatters-
The cell cycle is the intricate process of replication of genetic material and producing the daughter cells. The cell cycle is regulated by several mechanisms, one of which is checkpoints.
Checkpoints are the sites where the cells are checked for errors and inaccuracy in the cell.
The cell takes action to ensure errors are not replicated as:
The G1 checkpoint in the cell cycle is the primary checkpoint, which decided whether the cell should divide or not divide. It checks for size, DNA damage, and nutrients. The cell cycle will halt if there will be any errors. The G2 checkpoint is involved in the overall smoothening of the cell cycle. If any damage is observed after the other checkpoints, the cell cycle will pause in the G2 phase, halting the replication of errored genetic material.The M checkpoint corresponds to accurate attachment of the sister chromatids and the cycle will be in pause if the proper attachment is not done.
Thus, there are several checkpoints to check the errors in the DNA, and if any error persists, the cell cycle will be halted.
To know more about cell checkpoints, refer to the following link:
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The
of the cell direcs cell activity and ads like the control center.
Answer:
unable to understand ur question,,,
Explanation:
sry dear!
Answer:
The nucleolus✔ of the cell directs cell activity and acts like the control center.
Explanation:
Hope this helps you :D
guys plsssss help me
Answer: A
Explanation:1 this is 4th grade work
The Earth ________ is a group of parts that include air, water, land, and life
Answer:
The Earth Cycle
Answer:
biosphere
Explanation:
The biosphere conists of all living things and it includes air , water , land and life.
Efforts to reduce pollution began occurring later in the century. If pollution near factories was reduced, what would happen to the color of the moths? Explain your answer.This would happen because
Answer:
moths would begin becoming lighter as the pollution is reduced
Explanation:
The color of the moths would begin becoming lighter as the pollution is reduced. This is because during the time of high amounts of pollution industrial melanism takes place and the moth's pigmentation becomes a darker tone. This is so that the moths are able to blend in better with its surroundings and survive. Pollution causes sulphur dioxide gas and dark soot deposits which have a greyish dark tone, thats why moths pigmentation turns darker. With pollution reduced moths need a lighter colored pigment to blend into lighter colored objects such as trees and leaves.
The color of the Moths will become lighter as a result of this due to the effect
pollution has on its color.
Industries and factories make use of fuel and when it is burned in generating
sets and other equipment it produces the compound known as Nitrogen
oxide.
The Nitrogen oxide has a brownish color which goes into the atmosphere
where the moths fly in thereby contact with the gas darkens the color to
shades of brown. A reduction in the discharge of the gas will lead to it
becoming lighter.
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ILL GIVE BRAINLEIST IF CORRECT!! PLSSS RLY NEED HELP!
Which of the following is an example of Epigenetics?
Turtles getting bigger as they age
chickens feathers growing back after losing a few
A caterpillar becoming a butterfly
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Sharks ability to sense eletrical currents
1. Write the complementary code for the following DNA transcription.
A T G C A T T G
Answer:
T A C G T A A C
Why do very few plants live in streams?
Answer: Very few plants Survive in deep water because concentration of oxygen is less therefore very few plants develop the ability to catch oxygen from water
Explanation:
Bile juice is released by the-
(A)Salivary glands
(B)Pancreas
(C)Liver
(D)Large intestine
Answer:
ayyyyyyyyyyyyyyyyyyyyyyyyyy sike its d no sike its a no sike its c no sick get a dDDDD
Explanation:
minerals can be sorted into metals and___?
Plants
Powder
Gems
Rocks
does variation allow for natural selection to take place?
Answer: HOPE THIS HELPS!
Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
Saturn's rings:
1.) are smaller than Jupiter's
2.) are made of ice and dust
3.) do not have any space between them
4.) can only be seen when the sun is behind the planet
what do density-independent and density-dependent mean? (please answer a bit simply lol)
Density-dependent regulation can be affected by factors that affect birth and death rates such as competition and predation.
Answer:
Density independent factors refer to any influences on a population's birth or death rates, regardless of the population density. Whereas, Density dependent factors affect a population through increasing or decreasing birth and death rates.
What happens at the edge of plates?
Answer:
Most earthquakes occur along the edge of the oceanic and continental plates.
Explanation:
pls mark brainliest
Most of the border of the state of Florida is where the land meets the ocean. What term is used for this?
Answer: Coast? Or peninsula
Explanation:
How do humans cycle carbon from the biosphere to the atmosphere? (1 point)
by respiration
by driving cars that use gasoline for fuel
by eating plants
by planting vegetable crops
Answer:
Carbon is the chemical backbone of life on Earth. Carbon compounds regulate the Earth’s temperature, make up the food that sustains us, and provide energy that fuels our global economy.
Explanation:
Humans cycle carbon from the biosphere to the atmosphere by respiration, driving cars that use gasoline for fuel, eating plant parts, planting vegetable crops. So, all these processes are playing a major role in the carbon cycling by Humans.
What is Carbon Cycle?
The movement of carbon from the reservoir to reservoir is known as the carbon cycle. The carbon Cycle occurs through the atmosphere, oceans, and through living and dead organisms.
Humans during respiration inhale Oxygen and exhale Carbon-dioxide, vehicles also emit smoke consisting mainly of carbon, plants' bodies also contain a proportion of carbon.
Therefore, Humans cycle carbon from the biosphere to the atmosphere by respiration, driving cars that use gasoline for fuel, eating plant parts, planting vegetable crops. So, all these processes are playing a major role in the carbon cycling by Humans.
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Answer the prelab questions below with reference to the attached class slides.
1. What is a mutation? (A. change of DNA / B. copy of DNA / C. passing of DNA / D. all listed)
2. Describe the info flow of transcription. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D.
DNA --> protein)
3. Describe the info flow of translation. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
4. Describe the info flow of expression. (A. DNA --> DNA/B. DNA --> RNA / C. RNA --> protein / D. DNA
--> protein)
5. Describe the info flow of replication. (A. DNA --> DNA/B. DNA -> RNA / C. RNA --> protein / D. DNA-
-> protein)
Answer:
1 . mutation is in a change in a DNA sequence nutrition can visit of DNA copying mistake made during cell division exposure to radiation exposure to Chemicals called motor Jeans Aur infection by viruses
Humans start off as a single fertilized cell. How does that one cell create multiple organs and organ systems to form a single human?
Answer:
It's called the multiplication process
Explanation:
Answer:
During the development of an organism, cells differentiate into many distinct cell types. How does a single fertilized egg cell develop into so many different types of specialized cells? They both cannot produce all cells. Multipotent- limited to replacing cells in the tissue where they are found.
Use a sequence of at least four events to describe some of the ways
that water moves into, through, and then out of the atmosphere.
Please help
Explanation:
together evaporation transpiration sublimation plus volcanally emissions for almost all the water evaporate in the atmosphere that isn't inserted in human activities
Cells of the amine system are able to respond to the presence of invading organisms because they recognize the
Answer:
Cells of the immune system are able to respond to the presence of invading organisms because they recognize the antibodies present in the invading pathogen
Explanation:
The mechanisms of human immunity can be grouped into two broad categories: the innate or nonspecific immune system, which provides a first and general defense against any element recognized as foreign, and the acquired or specific immune system that recognizes specific threatening agents and generates a response directed against those elements. When foreign substances enter our body (bacteria, viruses, parasites, proteins from other animal or plant species, cells from other organisms - including those of human origin - and a long etcetera, all of which are given the common name of antigens) and are brought into contact with cells that are members of the immune system, the foreign element or antigen is first captured by certain types of cells that are collectively known as antigen-presenting cells. These cells would correspond to the intelligence service and their mission is to take the antigens, introduce them inside, process them and present the antigens on their surface in a fragmentary way to other cells of the immune system. This results in the activation of lymphocytes that specifically recognize the antigen and ends in the development of mechanisms that mediate the physiological function of the response, that is, the elimination of the antigen. Thus, the immune response can be functionally divided into three phases: the antigen recognition phase, the activation phase of the response, and the effector phase.
Please help! I'm struggling! Will give out BRAINILIEST if CORRECT!
What is the difference between natural selection and artificial selection? Explain why?
Answer:
Natural selection is not decided by humans, but aritifical is. In natural selection, the organism that naturally survives will have their selection of characteristics carried onto the offspring. But in artifical, humans decide which characteristics they want from an offsrping for their sepcific need, e.g largest or colour and breed organisms for that characteristic- not to make them survive better.
what are the main jobs of 1. sweat glands 2. epidermis 3. iris 4. sensory neuron 5. optic nerve 6. lens
Answer:
Explanation:
1.regulates body temperature.
2.regulate fluid and protect the body from mechanical injury.
barrier that protects the body from ultraviolet (UV) radiation, harmful chemicals, and pathogens such as bacteria, viruses, and fungi.
3.responsible for regulating the amount of light that gets into the eye.
4.responsible for converting external stimuli from the environment into corresponding internal stimuli;send projections to other elements of the nervous system, ultimately conveying sensory information to the brain or spinal cord.
5.job of the optic nerve is to transfer visual information from the retina to the vision centers of the brain via electrical impulses.
6. lens focuses the light rays that pass through it in order to create clear images of objects that are positioned at various distances
In 2006, an Ethiopian researcher announced the discovery of well-preserved 3.3 million-year-old fossil of a young female hominid. Refer to Figure (F) below. Considering the Hominid trend of evolution, choose which skull would most likely be that most primitive of the three.
Answer:
Skull three
Explanation:
the backlining is in more, and the jaw moves out more, resembeling that of a more gorilla like creature
It sounds like the description is referring to a hominid with a more pronounced facial structure, similar to that of a gorilla. This may indicate a more primitive stage of hominid evolution, as earlier hominids had more pronounced facial features and a more protruding jaw than later, more advanced hominids.
What is the basic evolutionary changes in the group mentioned ?As hominids evolved over time, their facial features became more refined, and their jaw became less protruding as they adapted to a diet that relied less on tough, fibrous vegetation and more on softer, cooked foods. This adaptation allowed for the development of a larger braincase and a more upright posture, both of which are hallmarks of later hominids such as Homo erectus and Homo sapiens.
It's worth noting that the evolution of hominids is a complex and ongoing area of research, and new discoveries and interpretations of existing evidence may change our understanding of the evolutionary timeline and the characteristics of different hominid species.
Over the course of hominid evolution, several important changes occurred that distinguish hominids from other primates. One of the earliest changes was the development of bipedalism, or the ability to walk on two legs. Bipedalism allowed hominids to free their hands for tool use and other tasks, and also facilitated the long-distance travel needed to explore new environments.
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In need of help please
Answer:
thick and low in nutrients
Explanation:
because it is so cold and has barely any room for life in the first place, the soil is extremely low in nutrients. it is very thick. i know this because worms cannot move or live in that area because it is too cold and the soil is too thick. if you see what i mean since the worms cant get into the soild since its so thick and cold the soil has no nutrients so sorry it was very hard to explain
How efficient are the normal commercial solar cells?
During Earth's early history, microbial life on land contributed to the formation of soil. Soil formation, in turn, led to the evolution of land plants. Which term describes this chain of events?
Answer:
The correct answer is - nitrogen fixation.
Explanation:
In soil formation microbes play an important role as they help in providing important compounds such as nitrogen by the process of nitrogen fixation that is used by the plants.
Nitrogen-fixing organisms mostly bacteria are free-living but some live in a symbiotic relationship with plants such as Azobacter or with other organisms such as Rhizobium.
Hey y'all I need help with this bio question: what are the pros and cons of different skin tones in different parts of the world?
Question 7 (2 points)
Which statement best completes the sentence below:
Skin, part of the integumentary system, is your body's -
A. organ that increases metabolism.
B. location for white blood cell production.
C. first line of defense against infection.
D.only way to protect from viruses.
Answer:I think the answer is c
Explanation:
What conditions are necessary for rocks to melt? ( I’ll give a Brainliast) please answer
Answer:
The rock is pulled down by movements in the earth's crust and gets hotter and hotter as it goes deeper. It takes temperatures between 600 and 1,300 degrees Celsius (1,100 and 2,400 degrees Fahrenheit) to melt a rock, turning it into a substance called magma (molten rock).
Answer:
Flux melting occurs when water or carbon dioxide is added to rock. These compounds cause the rock to melt at lower temperatures. This creates magma in places where it originally maintained a solid structure. Much like heat transfer, flux melting also occurs around subduction zones.
Explanation:
hope this helps...
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7. What is meant by the saying everything that is psychological is also biological
Answer:
People who work in psychology want to understand human behavior and where it comes from. The mind-body dualism debate is an ongoing discussion on whether or not the psychological activity of an individual is based entirely in their body, or if there is a higher consciousness separate from the body. The debate stretches back hundreds of years in the field of philosophy, where philosophers have argued whether everything is material, or if there is a separate, immaterial part to being human.
Answer and Explanation:
Explanation:
People who work in psychology want to understand human behavior and where it comes from. The mind-body dualism debate is an ongoing discussion on whether or not the psychological activity of an individual is based entirely in their body, or if there is a higher consciousness separate from the body. The debate stretches back hundreds of years in the field of philosophy, where philosophers have argued whether everything is material, or if there is a separate, immaterial part to being human.