Answer:
These cells are stem cells.
Explanation:
Stem cells have not specialized to be in a specific tissue and have a particular function yet. They are the cells that give all the different cell types that our body has. In other words, they can become any cell type that the body needs. We call them pluripotent cells because they have the potential of becoming any specialized cell.
Scientists use stem cells in tissue or organ regeneration due to the pluripotential that they have.
Which of the following is an example of an environmental impact of agriculture?
A major cause of deforestation and other ecological damage that destroys habitats and biodiversity is agricultural growth.
Thus, Lowland forests in Indonesia being replaced by oil palm plantations, and the Cerrado and Atlantic Forests in Brazil and Paraguay are harmed by soy farming.
Extreme erosion is caused by logging and farming methods that are not sustainable. Half of all agricultural topsoil has been lost during the previous 150 years.
In many nations, agriculture is the main cause of pollution. Pesticides, fertilizers, and other harmful agricultural chemicals have the potential to contaminate fresh water, marine habitats, air, and soil. They may also linger in the environment for many years.
Thus, A major cause of deforestation and other ecological damage that destroys habitats and biodiversity is agricultural growth.
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What is the function of the central nervous system?
a) to relay messages
b) to analyze information
c) to process information
d) all of the above
sustainability refers to using resources in such a way that we ensure that they will be clean and healthy for our use
Answer:
The given statement is true.
Explanation:
Sustainability aims to satisfy immediate requirements, without either undermining skilled workers' opportunity to accomplish about there requirements or needs.It allows companies to decide on their lengthy effects throughout regulatory, socioeconomic, as well as evolutionary terms as well as on quick benefits, including such income reports during the next half portion.The disorder known as cystic fibrosis (CF) is inherited in a recessive autosomal manner. In populations of Northern European descent, the frequency of people with CF is about 1 in 2,500. Assuming Hardy-Weinberg equilibrium for this disorder, answer the following: A. Assuming Hardy-Weinberg equilibrium, what percentage of people in the population would be expected to be heterozygous carriers
Answer:
The correct answer is -
A. 3.9% people in the population would be expected to be heterozygous carriers
Explanation:
The genotype frequency for the CF affected is 1/2,500,
= 1/2500
= 0.004. This is equal to q^2
here q = frequency of recessive alleles combination or CF people. (H-W equation => p^2+q^2+2pq=1)
The allele frequency is the square root of q^2 value, which equals 0.02. The frequency of the dominant allele or p would be
1 - 0.02 = 0.98 (p+q = 1)
The frequency for the CF combinantion =0.004
the dominant or unaffected people genotype
= (098)^2
= 0.96;
and for the heterozygote, it is
= 2pq
=2(0.98)(0.02)
= 0.039 or 3.9%
A balloon is filled with air. If the balloon is then left out in the sun and warms up, what do you expect to happen?
A. The balloon expands
B. The balloon contracts
C. The balloon stays the same size
Answer:
A: The balloon expands
Explanation:
Since the heat is absorbed by the balloon, the molecules inside will spread apart. When this happens, the balloon will also expand as the molecules expand which therefore the balloon grows.
1 point
Based on modern evolutionary theory, the development of a new species
would most likely be associated with *
A) a constant environment
B) stable gene pools
C) geographic isolation
D) a lack of mutations
Evolution can occur at different rates; however, for evolution to occur.
What have scientists genetically engineered to decompose toxic waste?
Answer:
Bacteria
Explanation:
Have a beautiful day :)
A Rectal Enema is used to treat
Constipation. This would represent
what type of drug delivery?
Select one:
a. Enteral and systemic
O b. Parenteral and local
O c. Enteral and local
d. Parenteral and systemic
Answer:
b is correct: enteral and local
[tex]\huge{\mathbb{\tt { QUESTION:}}}[/tex]
A Rectal Enema is used to treat
Constipation. This would represent
what type of drug delivery?
Select one:
O a. Enteral and systemic
O b. Parenteral and local
O c. Enteral and local
O d. Parenteral and systemic
[tex]\huge{\mathbb{\tt {ANSWER:}}}[/tex]
B. Parenteral and local
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→X x K i m 0 2 x XSally was exposed to hepatitis. Her doctor gave her an injection containing
antibodies to help her fight off the infection before her immune system had a chance
to kick in.
action
or
MAR is
tion
72411
active immunity - naturally acquired
active immunity - artificially acquired
passive immunity - naturally acquired
passive immunity - artificially acquired
Answer:
The correct answer is - passive immunity - artificially acquired.
Explanation:
Passive immunity is the immunity that involves giving or acquiring antibodies from other sources instead of developing them on one's own. This type of immunity can be natural and artificial. Mother breastfeed the babies, is the natural passive immunity example as milk also contain antibodies required for immunity of babies.
Artificial passive immunity is the immunity that comes from injecting the antibodies created in different animals or persons which called antiserum or vaccines such as snake antivenom.
True or False - Deoxygenated blood is blue
Answer:
True beoxygenated blood is blue
For each of the following
statements, say whether it is true for mitosis only, meiosis only,
both, or neither
(a) The DNA is replicated before cell division starts.
(b) The homologous chromosomes pair up during division.
(c) The cell divides only once during the process.
Answer:
A-Both
B-Unknown but you said it was fine
C- mitosis
Explanation:
Mitosis and meiosis both have interphase, in which dna is replicated (synthesis). B I don’t know, hopefully you can get that one figured out—sorry :(. Meiosis occurs twice, which is why it results in 4 cells (gametes). Hope this helps a little :)
Self-portraits can help you learn about positioning people in a photograph.
True
False
A camera's self-timer takes a picture after a certain amount of time has passed.
True
False
1.) True
The reason this is true is because adjusting the camera allows you to get an understanding of how someone else should look or how they would likely look best when photographed. It also gives an understanding of how a camera should be aimed to get the best result.
2.) True
While many cameras have this feature, most are configured to only use this feature when the photographer selects it. This feature allows the photographer to adjust the camera in case they feel something isn't quite right with it, and it also allows them to get into the picture themselves if they feel they want to.
Hope this helps you, and have fun with whatever it is you are doing with your camera.
-Sayonara
Answer:
it is true for a and true for b. (aka a is question and b is question 2.)
Explanation:
Dinosaurs evolved over millions of years and became well-suited to their
environment. Unfortunately, dinosaurs did not have the ability to adapt to the
climatic change that occurred sixty-five million years ago due to the asteroid
collision. Which statement best describes why the dinosaurs were unable to survive
this event?
Answer:
Dinosaurs did not have the ability to adapt to the climatic change that occurred sixty-five million years ago due to the asteroid collision.
Explanation:
The rapid extinction of dinosaurs is believed by many scientists to have been caused by the very powerful meteorite impact on the northern Yucatan Peninsula about 65.5 million years ago, which created the Chicxulub crater. After that event, no dinosaurs have been found other than early birds, suggesting that all died out during or just after this short period.
The event enabled mammals to evolve and fill many of the ecological niches that were liberated since the disappearance of the dinosaurs. Even about a third of all known mammals disappeared in this mass extinction.
would it be better to mine in a wilderness area than a developed area?
Answer:
Yes.
Explanation:
Mining in a area of wilderness can provide great succes as long as you know the area well and know some things about where to mine and not.
Answer: Yes, it is better to mine in a wilderness area than a developed area.
Explanation: Mining is carried out to gather raw materials that serve as the foundation for any country's or region's growth. It is more likely to occur in a wilderness area than in a developed area because mining usually has a negative impact on the environment.
The ores recovered by mining, such as oil, coal, metals, and others, cannot be obtained from any developed location, and the mining process destroys settlements in developed areas.
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8. What type of rock would you find between and igneous intrusion and sedimentary rock?
Why?
HELP ASAP!! I WILL MARK BRAINIEST I NEED HELP ON ALL!!
1.
Which of these rocks forms when magma cools and hardens?
A. coal
B. shale
C. granite
D. sandstone
2.
Which of these rocks forms from compacted and cemented sediments?
A shale
B. basalt
3.
C. gneiss
D. granite
I
What
type
of rock forms when heat and pressure inside Earth chemically change existing rock?
A. igneous rock
B. sedimentary rock
C. metamorphic rock
4.
How would you identify a glossy, black, microscopically fine-textured rock that has no layering?
A. marble
C. obsidian
B. granite
D. limestone
5. Which of the following is true of a silicate mineral?
A. It contains only carbon
B. It must contain a metal.
C. It contains silicon bonded to oxygen
D. It can only be found in metamorphic rock
1. I think it is C
2. Possibly A, as shale is a sedimentary mineral
3. C possibly
4. C, obsibian, very glossy and fine, i have some at home, so i know the charactisitics
5. C
Is this bird
A. Feeding
B. Photosynthesizing
C. Digesting
D. Respiring
Answer:
c
Explanation:
Severe flooding in an area caused a population of minnows to become split into two separate ponds. Prior to the separation, the male minnows all had a moderate number of spots. Following the separation, the first pond was filled with larger fish that fed on minnows, so male minnows with fewer spots were better able to avoid detection by predators. The minnows in the second pond, however, had very few predators, and female minnows in this pond preferred to mate with males that had the most spots. After many generations, the two minnow populations evolved into different species and could no longer interbreed.
Answer:
Geographic isolation
Explanation:
Geographic isolation occurs when a population is split by geographic factors, such as the flood mentioned. They can become separate species over time and will no longer be able to produce viable offspring. Hope it helps :)
Which component of milk causes caramelization when heated?
Answer:
i think its carbohydrates
Explanation:
As the carbohydrates are heated, the molecules break down and reform into compounds with a characteristic brown colour and flavour.
hope this helps
The component of milk that causes caramelization when heated is lactose, as it is a disaccharide sugar that is present inside milk and consists of monosaccharides such as galactose and lactoses.
During the caramelization process in milk, heat causes the lactose molecules to undergo thermal decomposition due to the heat, resulting in the formation of various compounds, such as caramelan, caramelene, and carameline, etc. These compounds are the major factors for browning and flavor development of milk when it is heated. At a high temperature, the caramelization process is done.
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(((20 POINTS!!!)
The size of a population will increase when the number of births
A.
is the same as the number of deaths.
B.
is greater than the number of deaths.
C.
remains equal to the number of deaths.
D.
fluctuates up and then down.
How can biological weathering result in chemical erosion? A.Roots loosen soil and break rock B.plants transpire water vapor C. Large herds trample rocks and break up soil D.bacteria release acids and other agents that break down rock
Answer:
C
Explanation:
It contributes to the breaking down of rocks and landforms
Do all changes to dna alter the phenotype of an organism? Explain.
Answer:
No change occurs in phenotype.
Explanation:
This can happen in many situations:
perhaps the mutation occurs in a stretch of DNA with no function, or perhaps the mutation occurs in a protein-coding region, but ends up not affecting the amino acid sequence of the protein.
Carbon dioxide is a naturally occurring gas that is vital to plant and animal life, yet carbon dioxide emissions from burning of fossil fuels are expected to result in significant climate change within 100 years. Should carbon dioxide be considered to be a pollutant? Support your position by providing reasons why or why not.
Answer:
Yes, it should be considered a pollutant
Find the reason below
Explanation:
A pollutant is any substance that poses threat or causes harm to the sustainability of the environment. As rightly stated in this question, carbon dioxide (CO2) is a naturally occuring gaseous constituent of our atmosphere. It is vital to both animal and plant life as it is utilized by plants to synthesize their food (glucose), which is the starting point for the flow of energy.
Although CO2 plays a major role in sustaining life, it is also a major cause of GLOBAL WARMING. Carbon dioxide is considered the most important greenhouse gas as it has the ability to trap and emit heat, contributing to the global rise in atmospheric temperature. This causes a lot of harm and environmental disturbance, hence, CO2 despite its beneficial purpose, should be considered a POLLUTANT.
SERIOUSLY I NEED HELP I AM TAKING A BIOLOGY TEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Describe how the ear converts sound into messages that the brain can interpret.
GIVE A DESCRIPTION OF 125 WORDS
Answer:
SOUND WAVES enter the ear canal and cause the eardrum to vibrate. ... Moving fluid bends thousands of delicate hair-like cells which convert the vibrations into NERVE IMPULSES. Nerve impulses are CARRIED to the brain by the auditory nerve. In the brain, these impulses are CONVERTED into what we "hear" as sound.
Explanation:
These large, violent storms are created over water, move counter clock Spring Wise, and form an eye in the center What are these storms called?" O from 2. On the weather map. Asheville has over it What does this represent parts.
Answer:
b
Explanation:
Susan noticed that hummingbirds in her yard visited all the flowers, but especially
the parents were eating nectar, they must feed their babies only nectar as well.
To her surprise, she saw hummingbirds bringing small spiders and insects to feed the young humming
She should stick to her assumption that the babies eat nectar since she thought that first.
She should believe what she read in the book and disregard what she witnessed.
She should change her original assumption that they only feed their babies nectar.
She should ask other people what they think and agree with the majority.
Answer:
to her surprise, she saw hummingbirds bringing small spiders and insects to feed the young
Explanation:
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a closed circulatory system is one in which
Answer:
Blood is stored within blood vessels in a closed circulatory system, which circulates unidirectionally (in one direction) from the heart around the systemic circulatory route until returning to the heart.
Explanation:
The train speeding down the track. The faster the train moves diesel fuel the train uses. That means the faster the train goes, the more what it needs?
Answer:
I really think that this is engineering or maths but this not for biology
FOR SURE
The train speeding down the track. The faster the train moves diesel fuel the train uses. The faster the train goes the more it need energy.
What is energy?Energy is defined as a quantitative quality that is conveyed to a person or a physical system and is discernible in the way work is done as well as in the way heat and light are produced. It is important because it is a fundamental human requirement, energy plays a significant role in our daily lives. The primary energy source is the sun.
Railroads used to run their locomotives on petroleum-based diesel fuel, but they are now powered by renewable diesel and biodiesel blends. Biodiesel and renewable diesel are both produced using renewable energy sources rather than fossil fuels.
Thus, the train speeding down the track. The faster the train moves diesel fuel the train uses. The faster the train goes the more it need energy.
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Describe how climate change will impact the human population.
*5 sentences or more*
Answer:
the answer is in the picture.
Answer: Climate change will likely increase the frequency and strength of extreme events (such as floods, droughts, and storms) that threaten human health and safety. Climate changes may expose more people to diseases. Some groups of people (e.g., the very young and the very old) are especially vulnerable to health impacts. First, older people are physically more vulnerable to extreme heat, so population aging could exacerbate increases in heat-stress mortality brought on by climate change. Higher temperatures also exacerbate outdoor air pollution such as ozone, which also disproportionately affects older people. Human health is vulnerable to climate change. The changing environment is expected to cause more heat stress, an increase in waterborne diseases, poor air quality, and diseases transmitted by insects and rodents. Extreme weather events can compound many of these health threats. Climate affects population distribution both directly as well as indirectly through its effects on soil, vegetation and agriculture that have direct bearings on the pattern of population distribution. ... This explains a high density in the tropics, which are otherwise marked with extremes of climatic conditions.
Explanation:
A cat has 38 chromosomes. How many chromosomes would the cat’s sex cells have?
answers:
14, 19, 16, 0r 12
PLZ ANSWER QUICK AND CORRECTLY
Answer:
19
Explanation:
divide 38 by 2