Answer:
- Limitación física: la relación superficie volumen es baja para un intercambio eficiente de sustancias con el medio
- Limitación metabólica: en principio no existen limitaciones metabólicas
Explanation:
La membrana celular es una estructura fundamental para el funcionamiento celular, ya que de la membrana celular depende el intercambio de nutrientes y desechos por parte de la célula con su entorno (medio extracelular). En células muy grandes la relación entre la superficie cubierta por la membrana y el volumen celular es muy baja, lo cual dificulta el intercambio de compuestos (tanto nutrientes como desechos) con el medio extracelular. Por otro lado, los mecanismos metabólicos en principio no deberían verse afectados por el tamaño celular. Por ejemplo, los perfiles metabólicos de expresión génica son independientes del tamaño celular y están adaptados a diferentes tipos celulares, desde una célula huevo que es proporcionalmente varias veces más grande que un célula diferenciada la cual sin embargo no ha perdido la capacidad de dividirse, un ejemplo de esto son las células cancerosas derivadas de células epidérmicas diferenciadas las cuales poseen la capacidad de dividirse y de proliferar indiscriminadamente.
Which of the following best describes a DNA molecule
Double helix
Made of amino acids
Contains ribose
Constrain uracil
Answer:
Double Helix because thats how DNA looks like
Explanation:
Which three gases are released into the atmosphere when volcanoes erupt?
radon, water vapor, carbon monoxide
radon, helium, nitrogen
nitrogen, water vapor, carbon dioxide
carbon dioxide, carbon monoxide, radon
Answer:
The answer is C.) nitrogen, water vapor, carbon dioxide
Explanation:
i got it right on the unit test
The three gases released into the Atmosphere when volcanoes erupt are nitrogen, water vapor, carbon dioxide.
What is volcanic eruption?Volcanic eruption refer to the process that lead to the released of lava or gases from volcanoes when the Earth crust or planetary bodies or Mass object ruptures which allow the movement of magma out of them.
Therefore, The three gases released into the Atmosphere when volcanoes erupt are nitrogen, water vapor, carbon dioxide.
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Explain why it is important for a scientist to communicate the results and conclusions of a study
Answer:Publishing results of research projects in peer-reviewed journals enables the scientific and medical community to evaluate the findings themselves. It also provides instructions so that other researchers can repeat the experiment or build on it to verify and confirm the results.
Explanation: lol the explanation is above
Types of orchids grow high on the branches of the tall kapok trees of the jungle. This adaptation allows the orchid to receive enough sunlight to perform its photosynthesis but the kapok trees are unaffected.
commensalism
parasitism
mutualism
Answer:
A. commensalism
Explanation:
the tree isnt helped or harmed
URGENT!! According to the RNA hypothesis it is believed that all living things came from a common ancestor what evidence supports this theory?
A. The RNA molecule has the same molecule controlling as replication in all living things
B. The RNA molecule is an inorganic molecule
C. The RNA molecule is considered the master copy of all living things
D. The RNA molecule is able to self replicate
Where does photosynthesis occur?
8. Which of the following organ systems function like a cell membrane in animal cells
a. Immune system
b. Respiratory system
c. Circulatory system
d. Reproductive system
Answer:
The answer is A.
Answer:
THE ANWSER IS A .ARK ME BRANLEST PLZ
What direction will the unseen roots go in each image when the pot is
knocked over and put back up over time.
Answer:
left and right
Explanation:
How are the reactions of photosynthesis and Cellular respiration interconnected?
The reactions of photosynthesis and cellular respiration are interconnected, as the glucose produced by photosynthesis is consumed by animals in cellular respiration.
What is cellular respiration?Cellular respiration is a process of breaking down of food material into simpler forms in releasing energy.
Because oxygen and glucose are produced during photosynthesis from carbon dioxide and water, while water and carbon are produced during cellular respiration, the reactants of photosynthesis and cellular respiration are linked.
The ATP, which is energy transferred as a result of that process, results in the transmission of both water and carbon as byproducts.
Therefore, as the glucose created by sunlight is used by animals during cellular respiration, the reactions of photosynthesis and cellular respiration are interrelated.
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_______ divides a cell into four new
daughter cells, each with half as many
I
chromosomes as the parent cell.
Answer:
Meiosis
Explanation:
Daughter cells are produced after cell division such as mitosis and meiosis.
Two identical diploid daughter cells result from mitosis. Whilst meiosis products are four distinct daughter cells.
Choose the answer that best completes the sentence below
Humans have invented many tools that allow us to access a wider portion of the electromagnetic spectrum .____.Humankind has given itself unique powers for collecting information about the world.
A:However
B:as a result
c:since
d:although
and i’ma be givein 20 points each question i ask
photosynthesis involves the transformation of light energy into
a. kinetic energy
b. chemical energy
c. mechanical energy
d. hydroelectric energy
HELLPPPPPP
Answer:
B. chemical energy
Explanation:
kinetic energy is moving energy, which has nothing to do with plants
mechanical energy has nothing to do with organic life
hydroelectric energy is energy made from presser which is not made from plants
What is the relationship between mutation, natural selection, and adaptation?
Explanation:
well a mutation in my opinion is genetic change that happened in the animal this could be beneficial or may not be. natural selection is a process that ensures only the best of the species survives and more of them will produce because all of the flawed ones will die off. adaptaion is when a plant or animal adapts to its surrounding over time they may develop a charterisric that will help them thrive. all of them tie togethor
What step of cell respiration produces the most ATP?
Answer:
i think the electron transport chain but dont quote me on this.
Explanation:
Please help me its due in 30 min
Answer:
Option B is the correct answer
It's definitely correct answer
Herbivore is the primary consumer that feeds directly on producers (plants). In the given food chain, the mice is feeding on the grass (producer) because it eats grass'.then after it
Hope it's help you.... ^_^What happens to the heart rate of an individual when working out?
Heart rate increases in a linear fashion to increases in the intensity of exercise. This is illustrated in the adjacent graph, showing how the heart rate (in beats per minute – bpm) increases to match the incremental demands of walking, jogging and running.
HELPPPPP PLEASEE LOL
Answer:
I think its France
Explanation:
I"m pretty sure i did this one before. and if its wrong. then I'm sorry
The scientist credited with the theory of Natural Selection was born in England.
Charles Robert Darwin was born in Shrewsbury, Shropshire, England.
After swimming in the pool for 2 hours, your friend starts to complain because his fingers and toes are wrinkled. Use the concept of osmosis to explain why. Be sure to include the following in your explanation: The terms hypotonic, isotonic, and/or hypertonic (as well as what they mean) • The overall direction of water movement and reason why • How the movement of water causes his fingers and toes to change • A picture if necessary
Answer:
Explanation:
Osmosis is the spontaneous movement of molecules from low concentration to high concentration. The finger is hypertonic to the swimming pool, which means that it has a higher osmotic pressure. The pool is hypotonic to the finger, which means it has a lower osmotic pressure. Because osmosis goes from low to high concentration, water will seep into the finger, causing it to swell and become wrinkly. This balances out the concentration on both sides of the semipermeable membrane (skin on the finger) and makes them isotonic, meaning they have the same concentration.
The reason the water turned yellow was because:
Answer:
Yellow colorization in water is mostly caused by small amounts of rust. ... In fact, there's plenty of small amounts of iron and oxygen in our water systems, and when these combine you often are left with a yellow tinge to your water.
can i have branilst? ~+
Osmosis occurs when ____________ goes from _________ to _________. When the onion and elodea cells were put in salt water the _____________ left the cell because their was a ____________amount outside.
Answer: Osmosis occurs when _solvent molecules__ goes from ____lower_____ to ___higher solute concentration______. When the onion and elodea cells were put in salt water the ____water molecules_________ left the cell because their was a ____higher salt concentration________amount outside.
Explanation: Osmosis is simply defined as the net movement of solvent molecules, usually water, from a region of lower solute concentration to a region of higher solute concentration usually through a semi-permeable membrane. Water continues to move out the cell until both solutions in the intra- and extracellular membrane becomes isotonic.
i need help with this can someone help me?
Explanation:
Predation plays an important role in the overall health of an ecosystem since it regulates the population of preys as well as maintain the population of higher-level consumers. If predators were eliminated from an ecosystem, it would cause an increase of the population of preys and potentially decrease the population of other organisms on lower trophic levels. An example of such effect can be seen from the population of rabbits and plants supposing that foxes, eagles and snakes are eliminated from the ecosystem. The rabbit population will multiply, causing a decrease in the population of plants such as grass that rabbits feed on.
Hope this helps :)
Can someone help me please, i cant find the answer to this question anywhere.
Answer:
light dependent reaction
What type of cell is shown the image?
Answer: eukaryotic cells
Explanation:
The image shows a eukaryotic plant cell undergoing DNA replication and mitosis to produce daughter cells.
Eukaryotic cells, including plant cells, have a well-defined nucleus enclosed within a membrane, where the genetic material (DNA) is located.
DNA replication is the process of copying the cell's genetic information to ensure each daughter cell receives a complete set of chromosomes.
Mitosis is a form of cell division where the duplicated chromosomes are segregated into two identical daughter cells. This process is essential for growth, tissue repair, and asexual reproduction in plants and other eukaryotic organisms.
The daughter cells will be genetically identical to the parent cell, allowing for the propagation of the same genetic information and traits.
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What do scientists need to extract the DNA from? How much DNA is there?
Answer:
DNA extraction is a routine procedure used to isolate DNA from the nucleus of cells. When an ice-cold alcohol is added to a solution of DNA, the DNA precipitates out of solution. If there is enough DNA in the solution, you will see a stringy white mass.
Explanation:
How are antiviral drugs used? Pls I need this for my midterm
How does the nervous system help you to survive?
Answer: The nervous system helps all the parts of the body to communicate with each other
Explanation:
Mistletoe is a green plant that can make its own food, but also derives food from the mesquite tree on which it lives. In this way mistletoe is able to steal water and valuable minerals from the tree. 1. What is the advantage and disadvantage of this relationship to each organism? 2. What would happen to the mistletoe population if mesquite trees increase in number? 3. What type of symbiosis is this?
Answer:
1. Mistletoe is parasitic to the mesquite tree, it steals from the tree without giving anything valuable back to it. In this case, only the mistletoe gains an advantage.
2. If the mistletoe population on the tree were to increase, the mistletoe would probably end up slowly killing the tree. I say this because its a parasite to the tree. Its constantly stealing water and valuable minerals that it needs and doesnt give back anything that could help the tree. With all the water and minerals being stolen and an uneven rate with no way for the tree to replenish it all quickly enough it'll die.
3. Its parasitic since the mistletoe just takes and takes harmfully
Mistletoe plant is a parasite on the mesquite tree as it takes all the valuable minerals and water from the plant and does not give anything valuable in return to the mesquite tree.
What is Mistletoe plant?
Mistletoe plant is a parasite on the mesquite tree, it steals water from the tree without giving anything valuable back to it. In this case, only the mistletoe gains an advantage.
If the mistletoe population were to increase on the tree, the mistletoe plant would probably end up killing the mesquite tree. This is because it is a parasite to the tree. It is constantly stealing water and valuable minerals from the tree which it needs and doesn't give back anything valuable that could help the tree.
It is a parasite plant since the mistletoe plant just takes all the valuable minerals and water from the tree and thus is harmful.
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Why are mountain ranges and polar ice caps not easily classified into a major biome?
Answer:
Because they are not easily defined in terms of a typical community of plants and animals, mountain ranges and polar ice caps are not usually classified into biomes.
Explanation:
HELPLP MEEEEE ...
the net gain of atp in aerobic respiration is ___ molecules.
A.34
B.38
C.32
D.36
Answer:
c I am so sorry if it is roung ♤♧
How would someone with diabetes know they need medical help?
You may be diagnosed with diabetes because you go to the doctor for: persistent infections or a slow-healing wound. complications that are associated with prolonged high blood sugar levels, such as numbness or tingling in your feet. heart problems.
