Answer:
species, genus, family, order, class, phylum, kingdom, domain
Explanation:
The Treg cell destroys the Tc or Th cell rather than the Cell presenting self antigen because the Treg cell needs to: destroy T cells with receptors that respond to self-antigen. avoid reacting itself to self-antigen passed along by the Cell presenting self-antigen. destroy the self antigen, and it must destroy the cell in order to do this. preserve the cell in the middle that is presenting self-antigen.
The three main subtypes of T- cells are helper T-cells, [tex]T_h[/tex] and the cytotoxic T cells, [tex]T_c[/tex], and regulatory T-cells, Treg
The correct option is; the Treg cell destroys the [tex]\mathbf{T_c}[/tex] or [tex]\mathbf{T_h}[/tex] cell rather than the cell presenting self antigen because the Treg cell needs to:
Destroy the T cells with receptors that respond to self antigen
The function of the regulatory T cells, Tregs cells is to regulate the other
immune system cells, thereby providing control of the immune system to
foreign particles and self antigens, and also block autoimmune disease
To prevent the mounting number of host organism attacks, the immune
cells that give self-antigen response are destroyed, therefore, the Treg cell
needs to destroy the T cells with receptors that respond to self-antigen,
thereby preventing autoimmune disease
Learn more about the suppression of immune response to self antigen here:
https://brainly.com/question/13051582
why are there many ways to follow the steps of a scientific method
Answer:
I'd say it's because there's many ways to use the scientific method. Some steps in the scientific method may be unfitting for certain types of scientific experiments while it works perfectly fine for others.
Explanation:
What are the main differences between the two ecosystems in terms of organism population?
Explain what is meant by the terms habitat,community,environment and population
Answer:
environment -
all the conditions that surround a living organism. habitat - the place where an organism lives.
population -
all the members of a single species that live in a habitat.
community -
all the populations of different organisms that live together in a habitat.
Explanation:
A person eats a large meal, which makes him feel sleepy. Later, he gets indigestion and throws up. The first event involves the action of the
parasympathetic nervous system
sympathetic first and then parasympathetic nervous system
parasympathetic first and then sympathetic nervous system
sympathetic nervous system
Answer:
When the parasympathetic nervous system (PSNS) is activated, it slows our heart and breathing rates, lowers blood pressure and promotes digestion. Our body enters a state of relaxation, and this relaxation breeds recovery
Stimulating the vagus nerve stimulates the parasympathetic nervous system, which in turns reduces our neurophysiological experience of stress. It reduces our heart rate and blood pressure. It influences the limbic system in our brain, where emotions are processed.
Explanation:
https://www.eastsussex-osteopaths.co.uk/2021/01/19/activate-your-parasympathetic-nervous-system-with-these-simple-techniques/
https://www.innisintegrativetherapy.com/blog/2017/11/21/calming-a-wigged-out-autonomic-nervous-system-using-the-vagus-nerve
Have a bless day :D <3Why do we only show a few light rays when we draw a ray diagram?
We only show a few light rays when we draw a ray diagram to; represent the incident ray and reflected rays
When a Light passed through a medium ( mirror ), there is an infinite amount of rays that accompanies the light which can not be explicitly represented in a ray diagram, therefore to represent the light rays a few number of light rays are drawn in order to properly represent the incident and reflected rays on the the ray diagram.
Hence we can conclude that only a few light rays are drawn to represent the incident and reflected rays
Learn more : https://brainly.com/question/20805328
HELP 100 POINTS What is the percent similarity in the rRNA gene between salamanders and lizards?
Answer: there is no percent similarity
What do we call structures that
have different mature forms, but
develop from the same embryonic
tissue?
A. vestigial structures
B. homologous structures
C. mutation
D. DNA
Answer:
B. homologous structures
Which statement correctly describes the relationship between thermal energy and particle movement?
Answer:
The more heat energy an object has, the more particle movement that occurs.
Explanation:
The hotter an object is, the faster the particles move, the colder a object is, the slower.
Betty notices an acorn on the ground.She thinks it's a seed so she put it into a pot with soil and water.Eventually,she sees the plant growing upwards.she knows plants have cells and can do photosynthesis.Eventually, the tree grows and produces more acorns.
What characteristics of life did Betty not directly observe over time?
A.The tree has leaves that eventually produce the acorns.
B.The trees use carbon dioxide during the photosynthesis to produce food
C.the tree maintains homeostasis inside its cells.
D.The tree produces more offsprings over time
Answer:
A.the tree has leaves that eventually produce the acorns
All of the following are true regarding DNA except
A.
DNA is a double helix.
B.
DNA contains a strong backbone made up of alternating phosphate groups and sugars.
C.
The base pairs that make up the "steps" of the ladder are joined by weak hydrogen bonds.
D.
It contains the sugar ribose.
Answer:
D
Explanation:
RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom)
What do you think would happen to an
*organism if something went "wrong" in
tissue development? What would be the
chain of events that would occur?
Answer:
A genetic mutation
Explanation:
What is the rate of change for the function on the table?
I need help and fast it was due on Wednesday and if I don't turn it in 30 minutes he will deduct 12 points :,(
Answer:
4.) because you can only change one factor in an experiment so if you notice something, you'll know what caused it.
5.) an assumption made before any research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data
6.) science- the intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment.
Explanation: You can paraphrase on number 6 if you would like to
Explain how scientists can have multiple theories about the effects of global warming.
Explanation:
global warming?
Since the Industrial Revolution, the global annual temperature has increased in total by a little more than 1 degree Celsius, or about 2 degrees Fahrenheit. Between 1880—the year that accurate recordkeeping began—and 1980, it rose on average by 0.07 degrees Celsius (0.13 degrees Fahrenheit) every 10 years. Since 1981, however, the rate of increase has more than doubled: For the last 40 years, we’ve seen the global annual temperature rise by 0.18 degrees Celsius, or 0.32 degrees Fahrenheit, per decade.
The result? A planet that has never been hotter. Nine of the 10 warmest years since 1880 have occurred since 2005—and the 5 warmest years on record have all occurred since 2015. Climate change deniers have argued that there has been a “pause” or a “slowdown” in rising global temperatures, but numerous studies, including a 2018 paper published in the journal Environmental Research Letters, have disproved this claim. The impacts of global warming are already harming people around the world.
Now climate scientists have concluded that we must limit global warming to 1.5 degrees Celsius by 2040 if we are to avoid a future in which everyday life around the world is marked by its worst, most devastating effects: the extreme droughts, wildfires, floods, tropical storms, and other disasters that we refer to collectively as climate change. These effects are felt by all people in one way or another but are experienced most acutely by the underprivileged, the economically marginalized, and people of color, for whom climate change is often a key driver of poverty, displacement, hunger, and social unrest
Answer:
Since the Industrial Revolution, the global annual temperature has increased in total by a little more than 1 degree Celsius, or about 2 degrees Fahrenheit. Between 1880—the year that accurate recordkeeping began—and 1980, it rose on average by 0.07 degrees Celsius (0.13 degrees Fahrenheit) every 10 years. Since 1981, however, the rate of increase has more than doubled: For the last 40 years, we’ve seen the global annual temperature rise by 0.18 degrees Celsius, or 0.32 degrees Fahrenheit, per decade.
The result? A planet that has never been hotter. Nine of the 10 warmest years since 1880 have occurred since 2005—and the 5 warmest years on record have all occurred since 2015. Climate change deniers have argued that there has been a “pause” or a “slowdown” in rising global temperatures, but numerous studies, including a 2018 paper published in the journal Environmental Research Letters, have disproved this claim. The impacts of global warming are already harming people around the world.
Now climate scientists have concluded that we must limit global warming to 1.5 degrees Celsius by 2040 if we are to avoid a future in which everyday life around the world is marked by its worst, most devastating effects: the extreme droughts, wildfires, floods, tropical storms, and other disasters that we refer to collectively as climate change. These effects are felt by all people in one way or another but are experienced most acutely by the underprivileged, the economically marginalized, and people of color, for whom climate change is often a key driver of poverty, displacement, hunger, and social unrest
Explanation:
What is an ecosystem engineer?
Answer:
Ecosystem engineers are species that modify their environment in a significant manner, creating new habitats or modifying existing ones to suit their needs.
Why is the process of protein synthesis critical to life?
Answer:
Protein synthesis is the process all cells use to make proteins, which are responsible for all cell structure and function.
Explanation:
Proteins are important in all cells and do different jobs, such as incorporating carbon dioxide into sugar in plants and protecting bacteria from harmful chemicals.
please give brainlest
Can you always see the whole illuminated half of the Moon from Earth? Why or why not?
define the purpose for the field of biology
biology is a branch of science that deals with living organisms and their vital processes.
Answer:
As a field of science , biology helps us understand the living world and the ways its many species (including humans ) function, evolve, and interact. advances in medicine , agriculture , biotechnology, and many other areas of biology have brought improvements in the quality of life
Which of the following is NOT a
statistical test?
A. t-test
B. ANOVA
C. chi-square
D. area
I’m having a hard time in biology:/
Area is not a statistical test. The correct option is D.
What are statistical tests?Statistical tests are mathematical tests performed on data collected from research to make the interpretation of the research easily discernable.
There are two types of statistical tests:
Descriptive statistical testsInferential statistical testsDescriptive statistical tests only arrange data in tables, lines, graphs, etc. It does so that trends can be seen just at a glance.
Inferential statistical tests are performed in order to arrive at logical conclusions based on the data obtained during research. They include t-tests, analysis of variance tests, tests for significant differences, and so on.
In other words, area is not part of any statistical test.
More on statistical tests can be found here: https://brainly.com/question/14128303
#SPJ1
Relate the functions and characteristics that all cells have
Explanation:
They provide structure and support, facilitate growth through mitosis, allow passive
why are lysosomes important to the health of cells?
Answer:
Lysosomes are important to the health of cells they break down excess or worn-out cell parts.
(SCIENCE WILL MARK BRAINLIST I NEED A CORRECT ANSWER WITH EXPLANATION)
° True or false? Q: The speed of photosynthesis depends on the temperature true or false
Answer:
it's true
hope that it will help you
Which is NOT true about cells?
A. Cells are in all living things
B. Every type of cell performs the same function
C. Cells can reproduce
D. Cells take in food and use energy
Answer:
B is the answer of this question
Answer:
B
Explanation:
each type of cell have their own task so they can't perform the same function
mention the effect of mosquito and write down what can be done to control it.
Answer:
effect are malaria yellow fever or elephantlasisPLEEEEASE HELP
PLEASE HELP OMGGGG I NEED HELP
How does topography affect watersheds?
A. It affects how the water flows across the surface and where it goes.
B. It affects how much funding will go to protecting it.
C. It determines whether it will be an Epipelagic or Mesopelagic zone.
D. It determines whether it will be an estuary or a wetlands.
Answer:
A
Explanation:
Topography of a watershed also determines the steepness of the land surface and stream channels. We also know this steepness as slope, grade or gradient. The height and steepness of the hills, floodplains and channels contribute to the erosive power of the water in a watershed and its stream channels.
can someone answer this for me please
Answer: A
Explanation: The populations of secondary consumers would decrease as they wouldnt have the primary consumers to... well.. consume.
Although we think of land when we hear the word biome, there are also aquatic biomes. The abiotic factors that
influence life forms vary with location within ocean systems. Oceanographers divide the ocean into five broad
vertical zones as seen in the chart above. Compare the abiotic characteristics of the five zones.
Although we think of land when we hear the word biome, there are also aquatic biomes. The abiotic factors that
influence life forms vary with location in the ocean. Oceanographers divide the ocean into five broad vertical zones as
seen in the chart. Compare the abiotic characteristics of the five ocean zones. Which of these conclusions about life
forms found in the zones is supported by the information in the chart?
)
A)
Because of the severe abiotic conditions, there are no life forms found in
the hadalpelagic zone.
B)
The epipelagic zone is the only zone of the five zones where visible light
and algae can be found.
The mesopelagic zone hosts a diverse zooplankton community instead of a
phytoplankton or algae community and virtually no fish species.
Because there is no light in the abyssal zone, organisms feed on each other
or the dead organic material, detritus, that falls into the abyssal zone from
above.
D)
Answer:
B) The epipelagic zone is the only zone of the five zones where visible light and algae can be found.
Explanation:
A mesopelagic region has many different types of fish inhabit this twilight zone.
There are several organisms in the hadalpelagic zone.
The "abyssal zone" issue is meaningless because fish feed in all zones.
Why does H2O and H2O2 have different chemical properties
hydrogen peroxide (H2O2) has 1 more oxygen than water (H2O)
Answer:because they have different molecular structures
Explanation:
an association between roots of higher plants and fungi is called?
Answer:
mycorrhiza
Explanation:
Symbiotic association between roots of higher plants and fungi is termed as mycorrhiza.
Answer:
The associations between roots and fungi are called mycorrhizae.
