Answer:
It helps to growth population and maintains in continuity of life. And another advantage is that it helps in production of new type of organisms. It means offsprings are genetically difference than parents etc.
los temas.
1. ¿La Meiosis es la división propia de células?
Answer:
Explanation:
Al igual que la mitosis, la meiosis es una forma de división celular eucariota. Sin embargo, estos dos procesos distribuyen el material genético entre las células hijas resultantes de formas muy diferentes. La mitosis crea dos células hijas idénticas, cada una de las cuales contiene el mismo número de cromosomas que su célula madre.
Help for brainliest:)
Variation in offspring is important in maintaining genetic diversity within a population . Which of the answer choices indicates a mechanism of introducing genetic variation in a population? Select all that apply.
A crossing over during meiosis B ) fertilization of an egg by a sperm
C) independent assortment during meiosis
D) mitosis producing two new daughter cells
E) binary fission resulting in two bacterial daughter cells
Answer:
A B and C
Explanation:
Crossing over breaks, exchanges and rejoins chromosomes at corresponding points so introduces genetic variation. Because of crossing over offspring has characters of both parents.
Also independent assortment means that during separation of the chromosomes in anaphase, any chromosome can pair up with another. So for example if we have one parent plant with yellow and wrinkled seeds and other one with green and round seeds, then the gene responsible for round seed can pair up with either of the genes responsible for yellow seeds or green seeds. Hence the characters of offspring differ from the parents, it can have yellow round seeds or yellow wrinkled seeds and so on.
Mitosis will only produce 2 daughter cells which are exactly like their parent cells and are also identical to each other. Binary fission is a form of Asexual reproduction so it does not involve shuffling of genes from 2 parents.
Because of fertilization of egg with a sperm the maternal genes and paternal genes mix together. So it also produces genetic variations.
explain whether or not you the chaparral biome to be sensitive to loss of of a single species
Answer:
The chaparral biome has a high level of biodiversity, which serves to protect an ecosystem against the extinction of a single species. As a result, the chaparral biome should not be overly vulnerable to the extinction of a particular species.Sources:
The Chaparral practice - QuizletWhich of the vitamins would be potentially the most dangerous to
consume in high does (greater than 10 X RDA) as single micronutrient?
O vitamin A
O vitamin B-12
O vitamin
O riboflavin
????
Answer:
Vitamin A
Explanation:
Most people with vitamin A toxicity have a headache and rash. Consuming too much vitamin A over a long period of time can cause coarse hair, partial loss of hair (including the eyebrows), cracked lips, and dry, rough skin. Chronic consumption of large doses of vitamin A can cause liver damage.
Consuming too much vitamin A over a long period of time can cause coarse hair, partial loss of hair (including the eyebrows), cracked lips, and dry, rough skin. Chronic consumption of large doses of vitamin A can cause liver damage. It can also cause birth defects in a fetus. Later symptoms include severe headaches and general weakness. Bone and joint pain are common, especially among children. Fractures may occur easily, especially in older people. Children may lose their appetite and not grow and develop normally. Their skin may itch. The liver and spleen may enlarge.
Have an awesome day friend! :D
Compare and contrast an active solar heating system with a radiator system.
Answer:
A system that uses the sun's energy without requiring mechanical devices (pumps or fans) to distribute the collected heat are called solar system while radiator system uses fuel to heat the water. in active solar heating system, the SUN's energy used to heat water.
The comparison of an active solar heating system with a radiator system gives; Solar systems use the sun's energy to heat water without the need for mechanical equipment to disperse the heat, where radiator systems require fuel to heat the water.
What is an active solar heating system?Active solar heating systems employ solar energy to heat a fluid (liquid or air), which is then transferred to the interior area or stored for later use.
In conclusion, an active solar heating system and a radiator system are all subs of heat energy
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Which statement contains inaccurate information about stem cells?
Stem cells are undifferentiated.
Stem cells are specialized.
Stem cells can make more cells of the same type through cell division (potentially indefinitely).
Answer:
The incorrect statement is stem cells are specialized.
Explanation:
By their nature stems cells are unspecialized because they are undifferentiated. This means that they have not yet been assigned a specific role in the body.
Question 1
Which is a correct definition of carrying capacity?
A
the largest number of different species that a particular habitat can support indefinitely with the resources available
B
the smallest number of different species that a particular habitat can support indefinitely with the resources available
С
the largest number of individuals of a certain species that a particular habitat can support indefinitely with the resources available
D
the smallest number of individuals of a certain species that a particular habitat can support indefinitely with the resources available
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o
Answer:
the answer is A
Explanation:
WILL MARK BRAINLYIST!! (if mostly/ all correct)
1. According to the article "Drilling down into petroleum's impact on life on Earth", Peak oil is measured in RPRs (reserve-to-production ratios), which is recorded in years.
Question: Why does Iran have a higher RPR (80 years) than the United States (9 years)?
A. The United States consumes more oil than Iran.
B. Iran consumes more oil than the United States.
C. Iran produces more oil than the United States.
D. The United States produces more oil than Iran.
2. According to the article "Drilling down into petroleum's impact on life on Earth", carbon is a natural element that regulates Earth's temperature and makes the planet livable.
Question: Which event has led to major shifts in the carbon cycle becoming?
A. Peak oil has been reached this past decade.
B. Humans learned how to extract and burn fuel.
C. The API established units of measurement for oil.
D. Ancient algae and plankton were buried and crushed.
"(if you came for question 3 the answer is 1,2 and 3)"
-
4. According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how is the Amazon rain forest connected to climate change?
A. Trees of the Amazon remove carbon dioxide from the air.
B. People of the Amazon produce most of the carbon dioxide that causes climate change.
C.Soil in the Amazon absorbs carbon dioxide.
D. Water in the Amazon River produces carbon dioxide, adding to climate change.
5. Which selection from the article "Scientists study Persian Gulf reefs for coral survival clues" identifies the biggest threat to coral reefs?
A. Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.
B. The researchers demonstrated that this new organism was the most commonly found algae throughout the gulf's coral reefs. They say it probably adapted as a result of the gulf's harsh conditions.
There are five questions which are related to the Drilling down into petroleum's impact on life on Earth.
1. C. Iran produces more oil than the United States.
RPR is referred to as the Reserve to Production Ratio which is measured in years. Higher RPR of Iran demonstrates that it has more extraction rate than United States.
2. B. Human learned how to extract and burn fuel.
The major shift in Carbon cycle is because fossils and fuels have been excessively used extracted and burned for fuel and energy.
4. A. Trees of the Amazon remove Carbon dioxide from the air.
Forests are essential because they help remove carbon dioxide from air. The existing forests of Amazon are absorbing carbon dioxide which results in moderate climate and reduced climate change.
5. A. Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.
The biggest threat to coral reefs is bleaching event. Warming the waters spark to bleaching events.
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Fill in the following blank answers :
What is the name for the structure that allows one way movement of blood from the atria to the ventricle on the oxygenated side of the heart?
The heart is a muscular organ of the body that pumps blood to the organs of the body. The name for the structure that allows one-way movement of blood from the atria to the ventricle on the oxygenated side of the heart is;
The Mitral ValveThe valves of the heart prevent the backward flow of blood from the heart. There are four types of valves, namely, the tricuspid valve, the mitral valve, the aortic valve, and the pulmonary valve.
The oxygenated part of the heart is the left side. The mitral valve regulates the flow of blood from the left atrium to the left ventricle.
Therefore, the mitral valve allows one-way movement of blood from the atria to the ventricle on the oxygenated side of the heart.
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Tornado Effects on the Land
Answer:
They have a small effect
Explanation:
Because when you consider the size of the earth, tornadoes have a small effect on earth, that's your answer?
Answer:
Tornado Effects on the Land-well tornadoes strike are greatly impacted. Trees and plants can be uprooted, and diseases in the soil are spread.
Explanation:
DEADLY!!
Peter is 20 months old, weighs 28 lb, and he wants to eat the same food his older brothers do. No baby food for him; he is a big boy now! His mother is worried that this might not be an appropriate diet for a toddler and asked you, the nutrition student, to check it out. Be prepared for a challenge! It’s not easy to think about all the elements that make a healthful diet at the same time. You have to think about kilocalories, Acceptable Macronutrient Distribution Ranges (AMDR, which by the way are different for toddlers than for adults and adolescents), and watch iron (the most common dietary deficit in toddlers) and fiber intake. And that’s just the beginning. Adequate intake of fluids and electrolytes is also critical for a toddler’s health. Is your head spinning already? Let’s simplify the job by approaching each of the recommended Daily Values separately.
A balanced diet helps to prevent malnutrition in all of its manifestations as well as a number of noncommunicable diseases (NCDs) and illnesses throughout the life course.
What is Diet?However, there has been a change in dietary patterns as a result of increased production of processed foods, growing urbanization, and changing lifestyles.
Nowadays, individuals eat more meals that are heavy in calories, fats, free sugars, and sodium/sodium, and many people eat insufficient amounts of fruit, vegetables, and other dietary fiber-rich foods like whole grains.
Depending on individual characteristics (such as age, gender, lifestyle, and level of physical activity), cultural context, regionally accessible foods, and dietary habits, a diversified, balanced, and healthy diet will take on different compositions.
Therefore, A balanced diet helps to prevent malnutrition in all of its manifestations as well as a number of noncommunicable diseases (NCDs) and illnesses throughout the life course.
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Associate specific relationships between science and/or technology and human population growth.
The relationship between population growth and technological change has been debated since the end of the eighteenth century a debate whose main configuration has proved remarkably persistent. During the ensuing 200 years, historically unprecedented rates of change have been observed in both variables: in industrial, commercial, and communications revolutions spreading out from Europe, North America, and Japan; in parallel (though spatially and temporally uneven) revolutions in the technological base of agricultural production; and in a demographic transition–in which mortality decreased and fertility first increased, then decreased that is still underway in many developing countries. Interconnections there must be, yet the attribution of primacy and direction of causation among these variables, not to mention the nature of the mechanisms involved and means of influencing outcomes in the interest of meeting social goals, remain controversial. Meanwhile, a new awareness of the emergence of complex social-environmental systems, whether at local or global levels, has extended the debate beyond the discipline of economics, and broadened its emphasis from the welfare of the human race to that of the planet.
Which elements would HAVE a dipole interaction when bonding* in
Oco
Na-CI
H-H
K-Ca
Answer:
NaCl
sodium chloride have dipole interaction when bonded
how do the ranges for the marine bird and sea turtle species species compared
Answer: Varies
Explanation:
It's based on there being many different types.
what are some drawbacks to using mice in genetic studies?
Answer:
One drawback to using transgenic, knock-in, and knock-out mice to study human diseases is that many disorders occur late in life, and when genes are altered to model such diseases, the mutations can profoundly affect development and cause early death.
hope this helps
Explanation:
Genetically altered mice have served to recapitulate human diseases, including cancer, glaucoma, heart disease, and diabetes. However, despite their genetic similarity to humans, mouse models are criticized for their failure to accurately mimic human disease phenotypes.
Why it's bad to use mice as an experiment:
The use of mice as model organisms to study human biology is predicated on the genetic and physiological similarities between the species. Mice are less reliable as models of human disease, however, because the networks linking genes to disease are likely to differ between the two species.
Have a great day! :D
Which statements describe the Sun? Check all that apply.
It is the center of the solar system.
It is made up mostly of gases, not solids.
It is ancient, at over 10 billion years old.
It is the most massive object in the solar system.
It is composed mostly of oxygen and nitrogen.
Please no links. Doing it on edge 2021
Answer:
It is the center of the solar system.
It is made up mostly of gases, not solids.
It is the most massive object in the solar system.
Explanation: The sun is only about 4 billion years old so the 3rd one is incorrect, and the last one is incorrect because the Sun is made up of mostly hydrogen
Help?
Write the names of the reactants of photosynthesis below
______,_______and_____
Are plants a source or sink of photosynthesis?
Answer:
source
Explanation:
Where has the population reached the carrying capacity in the graph shown
above?
A. Point A
B. Point D
C. Point B
D. Point C
Answer: the correct answer is D
Explanation:Carrying capacity is characterized as the maximum populace size that a domain can continue inconclusively. For most species, there are four factors that factor into figuring the carrying capacity of an individual population: food accessibility, water resources, habitat, and ecological conditions.
In a graph representation of population size in a time period increases until it reaches carrying capacity, carrying capacity is representing in the graph where the increase in curve becomes stable and makes a plateau.
la respiration cellulaire aérobie, l'oxygène gazeux est combiné avec
des molécules alimentaires où
Answer:
La respiration cellulaire est l'ensemble des processus du métabolisme cellulaire convertissant l'énergie chimique contenue dans le glucose en adénosine triphosphate (ATP). Ces processus impliquent une succession de réactions chimiques formant des voies métaboliques qui appartiennent au catabolisme, c'est-à-dire qu'elles consistent à cliver les grosses molécules biologiques en molécules plus petites, ce qui libère de l'énergie ainsi qu'un certain nombre de déchets. Ces réactions sont globalement exothermiques, c'est-à-dire qu'elles produisent de la chaleur, la plupart étant des réactions d'oxydoréduction. De ce point de vue, la respiration s'apparente chimiquement à une combustion des nutriments, jouant le rôle de donneurs d'électrons (réducteur), en présence d'un accepteur d'électrons (oxydant).
La respiration est l'une des voies essentielles permettant aux cellules de produire de l'énergie métabolique pour leur développement et leur activité. Parmi les nutriments utilisés par les cellules des animaux et des plantes, on compte les glucides (ose), les peptides (acides aminés) et les lipides (acides gras), tandis que l'oxydant le plus fréquent dans les systèmes biologiques est l'oxygène moléculaire O2. L'énergie biochimique récupérée sous forme d'ATP peut ensuite être utilisée par des processus qui consomment de l'énergie tels que les biosynthèses, la locomotion ou encore le transport actif de substances chimiques à travers les membranes biologiques. La respiration aérobie requiert du dioxygène O2 pour produire de l'ATP. C'est la voie prépondérante de dégradation du pyruvate, issu de la glycolyse. Celle-ci se déroule dans le cytosol, mais le pyruvate doit pénétrer dans les mitochondries pour y être entièrement oxydé par le cycle de Krebs, lequel se déroule dans la matrice mitochondriale. Le cycle de Krebs convertit le pyruvate en dioxyde de carbone CO2 et en coenzymes réduites (NADH et FADH2), coenzymes dont les électrons à haut potentiel de transfert contiennent l'essentiel de l'énergie chimique des molécules dégradées. Ces coenzymes réduites sont alors oxydées par la chaîne respiratoire dans la membrane mitochondriale interne. L'énergie des électrons à haut potentiel de transfert permet de pomper des protons hors de la matrice mitochondriale vers l'espace intermembranaire. Il s'établit un gradient de concentration de protons à travers la membrane interne, lequel génère un gradient électrochimique suffisant pour actionner l'ATP synthase, une enzyme capable de phosphoryler l'ADP en ATP grâce à l'énergie emmagasinée dans ce gradient électrochimique. On appelle phosphorylation oxydative l'ensemble formé par la chaîne respiratoire et l'ATP synthase couplés par gradient électrochimique.
Les manuels de biologie indiquent généralement que chaque molécule de glucose entièrement oxydée par la respiration cellulaire est susceptible de produire 38 molécules d'ATP : 2 ATP issus de la glycolyse, 2 ATP issus du cycle de Krebs, et 34 ATP issus de la chaîne respiratoire. Ce rendement nominal n'est cependant jamais atteint en raison des pertes par dissipation du gradient électrochimique à travers la membrane interne des mitochondries ainsi qu'en raison du coût énergétique du transport actif du pyruvate depuis le cytosol jusqu'à la matrice mitochondriale, de sorte que les estimations actuelles s'établissent autour de 30 à 32 molécules d'ATP formées par molécules de glucose oxydée1.
La respiration aérobie est jusqu'à 15 fois plus efficace que la respiration anaérobie, qui produit seulement 2 ATP par molécule de glucose oxydée. Cependant, certains organismes anaérobie, comme les archées méthanogène, sont capables d'accroître ce rendement en utilisant d'autres accepteurs d'électrons finaux que l'oxygène.
Glycolyse
La glycolyse est une voie métabolique qui se déroule dans le cytosol des cellules de pratiquement tous les êtres vivants. Elle peut fonctionner de manière aérobie ou anaérobie, c'est-à-dire respectivement en présence ou en l'absence d'oxygène. Chez l'homme, elle conduit au pyruvate en conditions aérobies et au lactate en conditions anaérobies.
En conditions aérobies, ce processus convertit une molécule de glucose en deux molécules de pyruvate, avec production concomitante de deux molécules d'ATP. Plus précisément, il commence par consommer deux molécules d'ATP pour accroître la réactivité du glucose en vue de son clivage par l'aldolase puis en produit quatre par phosphorylation au niveau du substrat, avec production de deux molécules de NADH. La réaction globale de la glycolyse peut s'écrire :
glucose + 2 NAD+ + 2 Pi + 2 ADP → 2 pyruvate + 2 NADH + 2 ATP + 2 H+ + 2 H2O + chaleur.
Explanation:más inteligente por favor
You close your eyes, with your hand in front of your face for one minute. You quickly blink your eyes and find that even with your eyes closed, you can "see" your hand briefly. Why does this occur?
1) because elaborative rehearsal has transferred this image to your Long-Term Store/Memory, where it is stored indefinitely
2) because auditory images are held in Sensory Store/Memory for up to several seconds
3) because visual images are held in Sensory Store/Memory for up to about 1/4 second
4) because maintenance rehearsal keeps this image in your Short-Term Store/Memory indefinitely
Answer:
because visual images are held in sensory store/memory for up to 1/4 second
You can "see" your hand briefly because visual images are held in Sensory
Store/Memory for up to about 1/4 second.
When the sensory organ involving the eyes views an object briefly, the
information is usually passed to the brain which tells the type of object and
the action to take in response to the stimuli.
In this case, the visual image are usually held in the sensory
store/memory(brain) for few seconds which is why it is seen briefly even
after closing the eyes.
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Would you expect the cells from the root of a plant to be the same is structure and function as cells from a leaf
please help don't guess.. I have a d in biology and I'm trying to get a better grade. my parents keep hassling me about it please help
Which of the following is true about respiration in plants? Question 3 options:
A. Plants do not respire.
B. Plants respire at night.
C. Plants respire all the time.
D. Whereas animals produce carbon dioxide, plants produce oxygen at the end of respiration.
Answer:
plants respire at night
The author presents his opinion about what students should get from college. What do you
think is the purpose of college? If you decide to go to college, what do you want to get out
of it?
Answer:
the purpose of college is to find what job you wanna do when your older
Explanation:
even tho it may he expensive if you really wanna do it go for it
where did you get this information?
Answer:
a friend who helped me.sometimes I try answering the questions my self.also I get some answers from this place.
NEED HELP NOW PLEASE
5. Arrange the following levels of organization: Write numbers 1-8 only.
Compound of molecule
Atom
Organelle
Cell
Organism
Organ
Tissues
Organ system
is broccoli a dicot or monocot?
Answer:
Broccoli is a dicot
Explanation:
I looked it up on the internet :)
Describe what an ecosystem is.
Answer:
An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms.
Explanation:
WILL MARK BRAINLYIST!! (if mostly/ all correct)
1. According to the article "Drilling down into petroleum's impact on life on Earth", Peak oil is measured in RPRs (reserve-to-production ratios), which is recorded in years.
Question: Why does Iran have a higher RPR (80 years) than the United States (9 years)?
A. The United States consumes more oil than Iran.
B. Iran consumes more oil than the United States.
C. Iran produces more oil than the United States.
D. The United States produces more oil than Iran.
2. According to the article "Drilling down into petroleum's impact on life on Earth", carbon is a natural element that regulates Earth's temperature and makes the planet livable.
Question: Which event has led to major shifts in the carbon cycle becoming?
A. Peak oil has been reached this past decade.
B. Humans learned how to extract and burn fuel.
C. The API established units of measurement for oil.
D. Ancient algae and plankton were buried and crushed.
3.According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how have humans impacted the Amazon rain forest in the last 50 years?
1. 20% of the rain forest is gone (Correct)
2. There are more roads and people there (correct)
3. Over half of the rain forest is protected (correct)
4. Extinct species have been reintroduced (NOT correct)
A. 1, 3 and 4
B. 1, 2 and 3 "correct answer" (ITS THIS ONE. B OR 1,2 and 3!!!)
C. 2, 3 and 4
D. 1. 2 and 4
4. According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how is the Amazon rain forest connected to climate change?
A. Trees of the Amazon remove carbon dioxide from the air.
B. People of the Amazon produce most of the carbon dioxide that causes climate change.
C.Soil in the Amazon absorbs carbon dioxide.
D. Water in the Amazon River produces carbon dioxide, adding to climate change.
5. Which selection from the article "Scientists study Persian Gulf reefs for coral survival clues" identifies the biggest threat to coral reefs?
A. Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.
B. The researchers demonstrated that this new organism was the most commonly found algae throughout the gulf's coral reefs. They say it probably adapted as a result of the gulf's harsh conditions.
Answer:a d. c on second?
Explanation: United States produces more oil than most country's the states use more oil than iran
