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Answer:
Email your teacher they will give you the answers try it yourself
Explanation:
Related Questions
Cells of the amine system are able to respond to the presence of invading organisms because they recognize the
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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.
1. Write the complementary code for the following DNA transcription.
A T G C A T T G
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Answer:
T A C G T A A C
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?
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It basically all boils down to Vitamin D! We need this essential vitamin to help our body build hormones and regulate calcium. Our bodies make Vitamin D when we are exposed to the UV rays found in sunlight. But as we all know, too much sunlight isn’t good because these UV rays can harm us. Melanin (the chemical that our bodies produce to darken skin tone and hair color) provides protection from UV rays by absorbing them. However, this means that the more melanin that is produced by someone’s body results in less absorption of UV rays and a decrease in Vitamin D production. But for someone living around the equator or in the tropics that doesn’t matter because there’s lots of sun all the time. So for humans living in these areas where there’s lots of sunlight year round, it’s beneficial to have darker skin to protect from the harm of UV rays. People living in these areas still get plenty of Vitamin D though because of that year round sunshine.
Now what about those who’s skin has less melanin, such as those found in the higher latitudes? Well with less sunlight year round, their bodies had to adapt to be able to get enough Vitamin D. So less melanin is produced by the body in order to absorb the lesser amounts of UV rays to make Vitamin D. Lighter skin is, therefore, more beneficial the farther away you go from the tropics.
So essentially:
Pro of Darker Skin tones
-Protection from harmful UV rays
Con of Darker Skin tones
-Less absorption of UV rays and less production of Vitamin D
Pro of Lighter Skin tones
-Greater absorption of UV rays and more Vitamin D production
Con of Lighter Skin tones
-Less protection from harmful UV rays (resulting in sunburns and, in extreme cases, skin cancer)
This is of course the biology answer. The social impacts of different skin tones is a whole different story that you can ask in the history section.
Pls, help me I have a test today :(
Answers
Answer:
Frameshift mutation
Explanation:
i think that is the answer
Conduction is the transfer of heat between substances with different temperatures. Heat moves from the warmer to the cooler substance through direct contact.
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Answer:
True.
Explanation:
Conduction is a heat transfer method. The heat passes by direct contact between two objects. The heat will go from the object with the higher temperature to the one with the lowest one. We call this temperature gradient. If we analyze the molecular aspect of conduction, we can see that the molecules with higher temperatures have more energy so, they move more. These molecules will collide with the molecules of the other object transferring their energy. As a result, heat passes from the hottest object to the cooler one till the two substances are at the same temperature, there is thermal equilibrium.
Answer: b. Hot spring
Explanation:
Humans start off as a single fertilized cell. How does that one cell create multiple organs and organ systems to form a single human?
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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.
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
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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.
To understand more about Carbon Cycle, refer to the link:
https://brainly.com/question/2272536
The
of the cell direcs cell activity and ads like the control center.
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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
Answers
Answer: A
Explanation:1 this is 4th grade work
Genes contain specific instructions for how to make(1 point)
carbon.
nucleotides.
gametes.
proteins.
Epigenetic changes are generally(1 point)
not heritable changes in gene structure of a population.
not heritable genetic changes that are specific to an individual.
heritable genetic changes that are due to environmental factors.
heritable changes in gene frequency of a population.
Meiosis produces(1 point)
hydrogen molecules.
skin cells.
DNA molecules.
gamete cells.
Which environmental factor will most likely increase the possibility of mutations in the Escherichia coli in the human body?(1 point)
eating dessert daily
a very stressful experience
drinking bottled water regularly
exposure to extreme heat
Changes to body cells affect(1 point)
gene activity.
cell division.
individuals.
offspring.
Answers
Answer:
Explanation:
Genes contain specific instructions for how to make proteins within the body.
Epigenetic changes are generally heritable genetic changes that are due to environmental factors, which work by turning genes that already exist in the body 'on' or 'off' depending on these factors.
Meiosis produces gamete cells. This is usually a total of 4 gamete cells which are all part of producing everything required in the reproductive process.
exposure to extreme heat is probably the most likely cause of mutation for E. Coli as it needs a steady 36–40°C for survival.
Changes to body cells affect cell division. This is because genetic mutations cause cells that are designed for normal cell growth to greatly increase which can throw the system off and cause many problems.
1. Proteins
2. Heritable genetic changes that are due to environmental factors
3. Gamete cells
4. Exposure to extreme heat
5. Individuals
You will get 100% using these:)
Bile juice is released by the-
(A)Salivary glands
(B)Pancreas
(C)Liver
(D)Large intestine
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Answer:
ayyyyyyyyyyyyyyyyyyyyyyyyyy sike its d no sike its a no sike its c no sick get a dDDDD
Explanation:
The bile juice is secreted in the Liver
if the checkpoint finds an error, what are some actions the cell can take to ensure the error does not get replicated?
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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:
https://brainly.com/question/2720245
Please help! I'm struggling! Will give out BRAINILIEST if CORRECT!
What is the difference between natural selection and artificial selection? Explain why?
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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.
In need of help please
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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 do greenhouse effect allow for there to be life on earth? Explain
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Answer:
A greenhouse effect is when a planets atmosphere gets thicker and warms
Explanation:
As a planet with water's parent star gets brighter every million years, The amount of evaporation increases. these are called greenhouse gasses. greenhouse gasses include water vapor and Carbon. This is why Venus is a burning hell. it was once like earth, but the sun kept getting brighter and brighter, causing clouds to form all over the rock, trapping in more heat, and making it far to hot for even metal. One day this will happen to earth, as well. this is why we have global warming. It can be caused by Co2 from earth's inhabitants and water vapor from it's vast oceans.
Can I have brainliest please thanks have a nice day!
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
O
Sharks ability to sense eletrical currents
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epigenetics are caused by things that aren’t regulated by DNA or genetics.
loosing feathers, and growing back new ones isn’t a genetic thing.
7. What is meant by the saying everything that is psychological is also biological
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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.
example of aquatic plants
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Answer:
lotus
is an example of a aquatic plant
Which evidence of evolution allows scientists to know what the physical features of an organism were ?
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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.
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Answer:I think the answer is c
Explanation:
Why do very few plants live in streams?
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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:
what are the main jobs of 1. sweat glands 2. epidermis 3. iris 4. sensory neuron 5. optic nerve 6. lens
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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
Is the relationship between Riftia pachyptila and the chemosynthetic bacteria an example of symbiosis?
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Answer: YES. The relationship between Riftia pachyptila and the chemosynthetic bacteria is an example of SYMBIOSIS.
Explanation:
Nutrition is the series of process by which living organisms obtain food substances and use them to provide energy and materials for their growth and maintenance. There are 2 major modes of nutrition which includes:
--> Heterotrophic nutrition: this is the type of nutrition in which the organism depends on manufactured food for survival. Heterotrophic organisms may be SYMBIOTIC which means that it can live together with another organism as they both benefit from each other.
--> Autotrophic nutrition is the type of nutrition in which an organism has the ability to manufacture its own food. This can be achieved through the process of CHEMOSYNTHESIS. In this process, they synthesis organic compounds with the use of energy from inorganic compounds such as carbondioxide. An example is the chemosynthetic bacteria found in the gut of Riftia pachyptila.
Riftia pachyptila is an aquatic invertebrate that is seen at the seafloor near hydrothermal vents ( high temperature area). They do not have digestive system that will enable them make use of the inorganic materials (carbondioxide, sulphide) found in their environment. But within their paired coelomic cavities are chemosynthetic bacteria.
The relationship between Riftia pachyptila and the chemosynthetic bacteria is an example of SYMBIOSIS because the chemosynthetic bacteria depends of the Riftia pachyptila for the necessary inorganic compounds for its own metabolic reactions and excretion of by products while Riftia pachyptila depend on the bacteria for byproducts from its metabolic reaction which is needed for its growth.
YES, the connection between Riftia pachyptila and therefore the chemosynthetic bacteria is an example of SYMBIOSIS.
Nutrition-Nutrition is the series of processes by which living organisms obtain food substances and use them to supply energy and materials for growth and maintenance.
There are 2 major modes of nutrition which includes:Heterotrophic nutrition is the sort of nutrition during which the organism depends on manufactured food for survival.Autotrophic nutrition is the sort of nutrition during which an organism has the power to manufacture its own food. this will be achieved through the method of CHEMOSYNTHESIS.Riftia pachyptila is an aquatic invertebrate that's seen at the seafloor near hydrothermal vents ( heat area).
They do not have gastrointestinal system which will enable them make use of the inorganic materials (carbondioxide, sulphide) found in their environment. But within their paired coelomic cavities are chemosynthetic bacteria.
The relationship between Riftia pachyptila and therefore the chemosynthetic bacteria, chemosynthetic bacteria depends on the Riftia pachyptila for the required inorganic compounds.
For its own metabolic reactions and excretion of by-products Riftia pachyptila depends upon the bacteria for byproducts from its metabolic reaction which is required for its growth.
Therefore, Yes, the relationship between Riftia pachyptila and the chemosynthetic bacteria are an example of symbiosis.
Learn more about Riftia pachyptila and chemosynthetic bacteria here:
https://brainly.com/question/10527581
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
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Determine whether each of the following is a characteristic of DNA, RNA or BOTH
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Answer:
Explanation:
1. RNA
2. Both
3. RNA
4. Both
5. DNA
6. Both
7. DNA
If the sperm cell of a fruit fly has 4 chromosomes, then the number of chromosomes in each body cell is:
Answers
Answer:8
Explanation:
Number of chromosomes in each body cell is 8.
What do you mean by chromosomes?A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins are the histones.
Moreover, chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA).
Therefore, passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
Learn more about chromosomes:
https://brainly.com/question/1596925
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what do density-independent and density-dependent mean? (please answer a bit simply lol)
Answers
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.
minerals can be sorted into metals and___?
Plants
Powder
Gems
Rocks
Answers
Is 3600 calories too much for a 73 pound 4 foot 5 13 year old to gain muscle
Answers
Answer:
im guessing yea
Explanation:
rvkfinpej vnowefijpdcivnfvrd
What conditions are necessary for rocks to melt? ( I’ll give a Brainliast) please answer
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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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╠╬╬╬╣ Chocolate
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