Answer:
D
Explanation:
Bone marrow contains stems cells which then turn into immature blood cells and they mature there. kinda like a school for young blood cells. they also make white blood cells and platelets.
Answer:
D ( the bone marrow)
Explanation:
Bone marrow is soft, gelatinous tissue that fills the medullary cavities, the centers of bones.
which human organ system has ovary
Answer:
The ovary is an organ found in the female reproductive system
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Hope this helps :)
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.
if the checkpoint finds an error, what are some actions the cell can take to ensure the error does not get replicated?
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
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.
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?
which of these organisms are the most closely related? remember, the name of an organism is in the form genus species
Answer:
Aythya affinis and Aythya marila
Explanation:
Well, I know you didn't give us the questions to pick from, But I think this is what you're looking for.
Prophase - Metaphase – Anaphase → Telophase
The shown figure describes —
O mitosis
O meiosis
O cytokinesis
Answer:
Mitosis
Explanation:
It takes place in two stages, e. g. Karyokinesis and Cytokinesis.
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
which inheritance produces blue and yellow striped fish from a blue parent and yellow parent
when is it possible to break even in an energy transformation?
a. always
b. late phase
c. early phase
d. never
please help!!
Answer:
I beleive always.
Explanation:
sorry if wrong
It cannot be possible to break even in an energy transformation. Thus, option D is correct.
what is energy transformation?
The primary forms of energy are light, mechanical, chemical, nuclear, electrical, heat, and sound.
Energy only convert from one form to another is known as energy transformation or conversion.
The Sun is the primary source of energy that is nuclear energy changed into electromagnetic energy like light energy.
This light energy travels in the form of waves reach the earth surface taken up by plants for doing photosynthesis.
Now light energy is converted into chemical energy which can be used up by animal and human in their food.
The chemical energy of the food converted into heat and mechanical energy which maintain the body’s temperature and involve in various physiological process like motion, breathing, standing, or running.
Learn more about energy transformation, here:
https://brainly.com/question/8210521
#SPJ2
Phenylthiourea,PTC, can be Taste it by some individuals but not by others. Students tested everyone in third grade to see who could taste PTC 100 students total. The ability to taste PTC is a dominant trait. 10 people in the great were unable to taste PTC
Answer:
Value of p: 0.68
Value of q: 0.32
Explain how features of the soil affect how quickly organisms can return as well as the types of organisms that return.
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
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
Which are characteristics of arthropods? Check all that apply.
radial symmetry
nervous system
asexual reproduction
segmented body
open circulatory system
Answer:4 5
Explanation:
Answer:
3 & 5
Explanation:
just did the test
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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minerals can be sorted into metals and___?
Plants
Powder
Gems
Rocks
Is the relationship between Riftia pachyptila and the chemosynthetic bacteria an example of symbiosis?
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
Why would pollution contamination of an aquifer be potentially more serious (put more
people at risk) than contamination of a small surface pond? You can annotate the
diagram below to support your explanation
WHAT IS PHOTOSYTHESIS?
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities
Explanation:
Answer:
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
Explanation:
:)
Describe 3 differences between a plant cell and an animal cell.
1.
2.
3.
Answer:
Plant cells have a cell wall, but animals cells do not.
Plant cells have chloroplasts, but animal cells do not.
Plant cells usually have one or more large vacuole(s), while animal cells have smaller vacuoles, if any are present.
Explanation:
Why OR Why shouldnt we build power plants in france? PLEASE anwser question thoroughly!!!
Answer:
We should not build more power plants in France because of a few reasons. reason 1 carbon emissions are terrible for our planet and we already have enough pollution. reason 2 we have a very low fuel supply as it is and using it up for things we don't need is not sufficient. Reason 3 is money. France is in a debt of 3,403.24 euros. we should not be spending what we don't have. These are the reasons why we should not build power plants in France.
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.
To understand more about Carbon Cycle, refer to the link:
https://brainly.com/question/2272536
When the bond between a phosphate group is broken, what is released?
Answer:
ATP is the “stored” energy form, which can release energy by breaking a chemical bond between the last two (2) phosphate groups, thus becoming ADP.
please help me as fast as possible. What should be added to this model to make it complete?
Answer:
Top consumer
Explanation:
where is the capsid found in a virus?
Determine whether each of the following is a characteristic of DNA, RNA or BOTH
Answer:
Explanation:
1. RNA
2. Both
3. RNA
4. Both
5. DNA
6. Both
7. DNA
15 facts about cells
Answer:
1. cells are very tiny
2. cells contain genetic material
3. prokaryotic cell are the earliest form of life
4. there are two types of cells
5. cells contain organelles
6.cells reproduce through different methods
7.cells can kill their self
8. similar cells form tissue
9.cells have varying life spands
10. there are more bacteria cells than human cells in the body.
11. cells provide structure to the body
12. cells convert nutrients to energy
13. cells carry out specialized functions
14.they were discovered by Robert Hooke
15 the largest cell in a human is the ovum
Define water purification?
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: