Answer:
The function of RBCs is to carry oxygen to the tissues at pressures sufficient to permit its rapid diffusion. Explanation:
Answer:to carry oxygen from lungs to tissues
Explanation:they contain haemoglobin, which has Fe that binds to the oxygen to be carried
13. Think of a concept that might be easier to understand or explain by making a model. Identify the
concept, and explain why a model would be useful.
A concept that is easier to understand using a model is the atomic structure.
The atom is the smallest particle of a substance that can take part in chemical reaction. All substances are made up of atoms but these atoms are not visible to the naked eyes.
The concept of atomic structure lies at the base of understanding science. Hence, a science student must thoroughly comprehend this concept.
Since atoms can not be seen with naked eyes, it is imperative to use a model to aid the learner in conceptualizing the structure of atoms.
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Calculate the percentage change in mass of the onions that were on the most concentrated solution of sodium chloride
Show your working
Answer:
-5.3
Explanation:
................
Describe the roles of the soil organisms in the carbon cycle
Carbon cycle is a biogeochemical cycle by which carbon is exchanged among the different components of the Earth.
Carbon cycle along with the Nitrogen cycle and the Water cycle, comprises a sequence of events that are key to make Earth capable of sustaining life.
It describes the movement of carbon as it is recycled and reused throughout the biosphere, as well as long-term processes of carbon sequestration to and release from carbon sinks.
The terrestrial carbon cycle is dominated by the balance between photosynthesis and respiration.
Carbon is transferred from the atmosphere to soil via ‘carbon-fixing’ autotrophic organisms, mainly photosynthesizing plants and also photo- and chemoautotrophic microbes that synthesize atmospheric carbon dioxide (CO2) into organic material.
Fixed carbon is then returned to the atmosphere by a variety of different pathways that account for the respiration of both autotrophic and heterotrophic organisms.
The reverse route includes decomposition of organic material by ‘organic carbon-consuming’ heterotrophic microorganisms that utilize the carbon of either plant, animal or microbial origin as a substrate for metabolism, retaining some carbon in their biomass and releasing the rest as metabolites or as CO2 back to the atmosphere.
What is the role of soil organisms in the Carbon Cycle?Soil Organisms or Microbes are critical in the process of breaking down and transforming dead organic material into forms that can be reused by other organisms and thus the microbial enzyme systems involved are viewed as key ‘engines’ that drive the Earth's biogeochemical cycles.
Soil microbes essentially transfer carbon between environmental compartments to fulfil their fundamental goal: survival through reproduction.
Thus, microbes utilize different organic and inorganic forms of carbon as carbon and energy sources.
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Tides occur in ocean,why?
Answer:
¿Qué Causa las Mareas? Podemos decir de una manera sencilla que las fuerzas de atracción que tanto el sol como la luna ejercen sobre la tierra, permiten una deformación y consecuente movimiento de las masas de agua de mares y océanos; esto hace que los niveles de agua suban y se formen las mareas.NOTA: Aquí anexo la respuesta en ingles.What Causes the Tides? We can say in a simple way that the attractive forces that both the sun and the moon exert on the earth, allow a deformation and consequent movement of the water masses of the seas and oceans; This causes the water levels to rise and tides to form.
what is element.
help me . i wull follow you
Answer:
elemt is made up of only one kind of particle is called as elements
Compare and contrast a provirus and viral DNA.
A provirus is viral DNA incorporated into the host cell’s DNA.
A provirus is newly replicated viral DNA after injection.
A provirus is the host cell’s DNA that has been destroyed.
A provirus is bacterial DNA incorporated into the viral DNA.
The main difference between 'provirus' and 'viral DNA' is that provirus is viral DNA incorporated into the host cell’s DNA (Option 1)
A provirus can be defined as the genetic material (DNA) of a particular virus which is integrated into the genome of an individual.Since a provirus is already integrated into the host's genome, this sequence can be transmitted from one generation to the next by cell division (either mitosis and meiosis depending on the cell type).For example, the human immunodeficiency virus (HIV) is a retrovirus whose genome is integrated into the host genome (e.g., into host CD4 cells), thereby making it a provirus.Learn more in:
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Answer:
A
Explanation:
why erector muscles contract in regularing body temperature at cold temperature ?
Answer:
Erector muscles contract in regularing body temperature at cold temperature because causing body hairs to stand on end.
Have a nice day!!3. The
is a unit of the Department of Health and Human Services. It is
responsible for monitoring safety and security risks and health hazards in the
United States and abroad.
A. National Institute of Occupational Safety and Health (NIOSH)
B. Centers for Disease Control and Prevention (CDC)
C. Occupational Safety & Health Administration (OSHA)
D. Occupational Safety & Health Act
______ , _______ , _______, and ________ are four macromolecules that are important to life.
Answers=
carbohydrates
nucleic acids
lipids (fats and oils)
hydrogen
proteins
oxygen
What is the named the system of measurement use by most countries around world?
What happens to particles in matter
when energy or heat increases?
A. they disappear
C. their motion decreases
B. they stay the same
D. their motion increases
Answer: it is D : their motion increases
Explanation: because as heat is increased it causes the particles to gain more kinetic energy making them move faster thus increasing their motion and leading to more successful particle collision .
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What do scientists hypothesize about production of free oxygen
What would happen if there are no villi in the walls of the small intestine? (a) Less surface area will be available so it will not absorb required amount of nutrients for the body (b) More surface area will be available so it will not absorb required amount of nutrients for the body (c) Less surface area will be available so it will absorb required amount of nutrients for the body (d) None of these
Answer:
(a) Less surface area will be available so it will not absorb required amount of nutrients for the body
Explanation:
Hope it helps :)
What was the name of the orbiting telescope that helped explore space by taking images like this one? THIS IS SICENCE
Answer:
Hubble Space Telescope
Hubble Space Telescope is the name of the orbiting telescope that helped explore space by taking images like this one. Therefore, option (4) is correct.
The Hubble Space Telescope takes photographs like these. Famous astronomy observatory named for Edwin Hubble, launched in 1990. It provides vivid, detailed photographs of celestial objects by orbiting Earth beyond the atmosphere.
Its powerful equipment have revealed faraway galaxies, nebulae, stars, and planets, revolutionising our view of the cosmos. Cosmology advances have revealed the universe's age and expansion pace. Hubble's magnificent images have increased our understanding and sparked public enthusiasm in space exploration and research. Therefore, option (4) is correct.
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Your question is incomplete but your full question was:
What was the name of the orbiting telescope that helped explore space by taking images like this one?
(1 point)
Galileo Space TelescopeApollo Space TelescopeInternational Space TelescopeHubble Space TelescopeA DNA segment is changed from AATTAG to AAATAG. What type of mutation is this and what is its effect on the genetic variation of a population?
A.
The mutation is a substitution which causes a decrease in the genetic variation of a population.
B.
The mutation is an insertion which causes a decrease in the genetic variation of a population.
C.
The mutation is an insertion which causes an increase in the genetic variation of a population.
D.
The mutation is a substitution which causes an increase in genetic variation of a population.
The mutation from AATTAG to AAATAG is a substitution which causes an increase in genetic variation of a population.
MUTATION:
Mutation refers to any change in the nucleotide sequence of DNA molecule. Mutation can be of different types depending on how it occurs. A substitution mutation is that in which one or more nucleotide base is replaced by another in the sequence. In this question, an original sequence of DNA is given as AATTAG. It was mutated to AAATAG via the replacement of 'T' with 'A'. This means that it is a substitution mutation. However, this mutation will cause an increase in the genetic variation i.e. difference in a population.Learn more at: https://brainly.com/question/21220597?referrer=searchResults
How is reproduction different than the other five characteristics of living cells?
Answer:
because reproduction is nature gifted and it is the way to increase population but living cells are the cells which keeps us alive
Reproduction differs from the other five characteristics of living cells because of the ability to replicate for continued existence.
The characteristics of living things include -MR NIGER D(acronym to remember)
Movement RespirationNutritionIrritabilityGrowthExcretionReproductionDeathNow Reproduction differs from all the others because while others are processes that organisms need for existence or survival,Reproduction on the other hand is the reason for the continuation of existence of species(creation of a copy).
Without reproduction, Living organisms would go extinct and would not be able to replicate themselves .
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Assertion : Parenchyma cells help in storage of food. Reason : Parenchyma cells are the main seats of photosynthesis.
Answer:
Assertion and reason are true and reason is the correct explanation of assertion
Explain mutations and how they can cause genetic disease
Pls help me answer thank you
Answer:
Option BExplanation:
As,
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes.
Answer:
B.allow sexual reproduction
name each of the following
I will give brainliest
Answer:
a. Arota
b. pulmonary trunk
c. left atrium
d. mitral (bicuspid) valve
e. left ventricle
f. interventricular septum
g. right ventricle
h. inferior Vena Cava
j. right atrium
k. aortic valve
Explanation:
hope it may help you
please help me thankyou
The answer is in the picture attached.
Answer:
................................
Hello i need help with this it’s just short (The subject is science and Im sorry if i got the subject wrong from the above) Thank you in advance <3
1. Forest ecosystems provide all of the following functions EXCEPT;
a. producing oxygen
b. controlling soil erosion
c. removing carbon from the atmosphere
d. lowering the biodiversity of the plant
2. Extinction is a natural process that occurs when the last member of a species does. Which of the following correctly arranges the mass extinction events from earliest to latest?
a. Cretaceous-Tertiary, Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic
b. Late Devonian, Cretaceous-Tertiary, Ordovician-Silurian, Permian-Triassic, Triassic-Jurassic
c. Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic, Cretaceous-Tertiary
d. Ordovician-Silurian, Permian-Triassic, Triassic-Jurassic, Late Devonian, Cretaceous-Tertiary
3. Which contributes the most biodiversity loss?
a. habitat destruction b. pollution
c. invasive species d. population growth
4. Extinction can be caused by a Natural Phenomenon such as storm, flash floods, or Anthropogenic (Human made). Which of the following is believed to be the major and most impactful anthropogenic cause of extinction?
a. habitat destruction b. overpopulation
c. overexploitation d. pollution
5. Which of the following is not a benefit that tress can provide?
a. They can trap sediments and runoffs that help improve water quality.
b. They prevent the excessive warming of the planet by sequestering Carbon dioxide.
c. They serve as filters that rid the air of harmful pollutants and toxic gases.
d. None of the above.
Answer:
1. Lowering Biodiversity of the plant
2. I think it is B
3. Habitat Destruction
5. None of the Above
Explanation:
Answer:
1. d
2.c
3.a
4.a
5.d
Explanation:
1. Forests ecosystem have high biodiversity
3.Habitat loss from exploitation of resources, agricultural conversion, and urbanization is the largest factor contributing to the loss of biodiversity. The consequent fragmentation of habitat results in small isolated patches of land that cannot maintain populations of species into the future.
4.It is currently the biggest cause of current extinctions. Deforestation has killed off more species than we can count.
5. Im not sure.
It may be ans c. As Trees absorb toxic chemicals through their stomata, or 'pores', effectively filtering chemicals from the air.
The maintenance of constant internal conditions in an organism is know as
Bonjour!
This is known as homeostasis.
Homeostasis - is when organisms maintain a constant internal environment while their external environment is changing.
Au revoir!
An interaction between two organisms in which
one usually benefits is known as
Answer:
Symbiosis is a relationship between two organisms: it can be mutualistic (both benefit), commensal (one benefits), or parasitic
What do all of the indicators you have used have in common?
Answer:
Weak acids and bases are indicators. All indicators are weak acids. An acid-base conjugate pair has different colors. Any indicator changes color when the pH of its solution is 7.
Explanation:
How is the energy stored in ATP released?
A.) ATP bonds with oxygen atoms
B.) Breaking the chemical bond between the 1st and 2nd phosphate
C.) Breaking the chemical bond between the 2nd and 3rd phosphate
D.) The energy in an ATP molecule doesn’t need to be “released”
Answer:
When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work
20 points for right answer
Answer:
it takes the shape of the jar and no volume i think
Particles that become planets
Explanation:
The planets in our Solar System are believed to have formed from the same spinning disc of dust that formed the Sun. This disc, called the solar nebula, was composed mainly of hydrogen and helium, but also had other elements in smaller proportions.
A stapler is used to staple 100 papers,it jams 5 times during the trial.A different brand of stapler performs the same test,it jams 22 times?
Answer:
Dang that sucks
is a biosphere is smaller than anecosystem.
Answer:
Yes!
Explanation:
From largest to smallest: biosphere, biome, ecosystem, community, population, and organism. Hope I helped :)
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