Answer:Sclerenchyma
Explanation:Sclerenchyma is thick walled dead lignified cells, they are hard and elastic. The sclerenchyma cells are divided into two groups namely fibers and sclereids. Sclerenchymatous fibers are branched/unbranched, long, hard, pointed cells with tapering ends, thick walls, and narrow lumen.
Answer:
Sclerenchyma is Greek word where "Sclero-" means hard and "enchyma" means infusion. This tissue consists of thick-walled, dead cells and protoplasm is negligible. These cells have hard and extremely thick secondary walls due to uniform distribution and high secretion of lignin and have a function of providing mechanical support
I hope that answers your question
Which level of organization is characterized by a group of cells that work together to perform a common function?
organ
O tissue
O organ system
O organism
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lark this and return
Answer:
Tissue
Explanation:
Tissue is a group of cells that work together for a specific function such as making your muscles move.
Tissue level of organization is characterized by a group of cells that work together to perform a common function
A group of cells that work together to perform a common function is known as a tissue. Tissues can be classified into four main types: epithelial, connective, muscular, and nervous tissue.
Epithelial tissues are responsible for covering and lining surfaces, while connective tissues provide support and protection to the body. Muscular tissues enable movement, while nervous tissues control and coordinate body functions.
Therefore, Tissues are the building blocks of organs that are made up from cells , which in turn make up organ systems, and ultimately form an organism.
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5. network of complex interactions formed by the feeding relationships among the
various organisms in an ecosystem
A network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem is known as Food web.
What is a food web?A food web is the natural interconnection of the different food chains and a graphical representation of what-eats-what in an ecological community in the nature. Another name used for the food web is the consumer-resource system.
Organisms which are present in the food webs are grouped into different categories are called as trophic levels. These levels are divided into producers, consumers, and decomposers.
Food web are the interactions which integrates the transfer of matter and energy between the living organisms which eat, and are being eaten by other organisms, capturing thus essential information about the species interactions, materials flow, community structure, and the ecosystem functioning.
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Which study would have produced the least trustworthy results?
Answer:
A
Explanation:
PLEASE HELPPPPPPPPPP!!!!!!! Explain how ATP and ADP act as allosteric regulators of enzymes that are responsible for ATP production, and how that is an example of feedback inhibition.
Answer:
The molecules that bind cellular respiration enzymes act as signals, giving the enzyme information about the cell's energy state. ATP and ADP are examples of molecules that regulate cellular respiration enzymes. ATP, for instance, is a "stop" signal: high levels mean that the cell has enough ATP and does not need to make more through cellular respiration.
This is a case of feedback inhibition in which a product feeds back to shut down its pathways.
Answer:
Specific enzymes of the electron transport chain are unaffected by feedback inhibition, but the rate of electron transport through the pathway is affected by the levels of ADP and ATP. Greater ATP consumption by a cell is indicated by a buildup of ADP. As ATP usage decreases, the concentration of ADP decreases: ATP begins to build up in the cell.
Explanation:
why do scientist use the term subunits and macromolecules when referring to lipids
Answer:
yes!!!
Explanation:
An apple, potato, and onion all taste the same if you eat them with your nose plugged
Help ASAP!!! You’ll get brainiest if you do it right!
What is the complementary DNA strand TAC GGC CGT TAT
Answer:
1a. The template DNA strand, from which the mRNA is synthesized, is 5’ CAAACTACCCTGGGTTGCCAT 3’
(RNA synthesis proceeds in a 5’ à 3’ direction, so the template strand and the mRNA will be complementary to each other)
b. The coding DNA strand, which is complementary to the template strand, is 5’ ATGGCAACCCAGGGTAGTTTG 3’
c. The sequence of the mRNA is 5’ AUGGCAACCCAGGGUAGUUUG 3’
(the sequence of the mRNA is complementary to the template strand and identical to the coding strand with U substituted for T)
d. The third codon is 5’ ACC 3’. Therefore, the corresponding anti-codon is 5’ GGU 3’
what venn diagram in math
What best describes the relationship between the two sets of reactions of photosynthesis, which are the light-dependent reactions and the light-independent reactions?
Answer:
The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions.
Light-dependent reactions and light-independent reactions both produce each set of sugars, and working together they produce more sugars than they can produce separately.
What are Light-dependent and independent reactions?Light-dependent reactions which convert light energy into chemical energy, so the goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to form ATP and NADPH, while these two energy storage molecules occur which is used in light-independent reactions.
Light-dependent reactions occur in the thylakoid membrane that use light energy to make ATP and NADPH while in light-independent reactions or the Calvin cycle where electrons activated from light-dependent reactions provide energy to make carbohydrates from carbon dioxide molecules.
Thus, Light-dependent reactions and light-independent reactions both produce each set of sugars, and working together they produce more sugars than they can produce separately.
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Which statement best describes why the body tries to maintain homeostasis?
O The body must maintain homeostasis so that the internal environment matches the
outside environment
The body must maintain homeostasis so that the internal environment stays the same if the outside
environment changes.
The body must maintain homeostasis to make sure that a person's heart and respiration rates are
the same.
Answer:
I would go with B:
The body must maintain homeostasis so that the internal environment stays the same if the outside
Homeostasis is the process of a state of steady internal, mental, chemical, and physical conditions of the body.
The correct answer is:
Option B. The body must maintain homeostasis so that the internal environment stays the same if the outside environment changes.
Homeostasis can be explained as:
It is the self-regulating process in which the body tends to keep the internal, physical, and chemical conditions of the body in a steady and equilibrium state. It generally refers to the stable internal conditions or maintaining the steady phase of the body with respect to changes in the environment. Sweating is one of the processes in which the body tends to maintain homeostasis by releasing excess heat in the hot climate.
Thus, the correct answer is Option B.
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Which of the following is the primary function of the nucleus?
Answer:
The nucleus has very important roles to play. As it contains genetic material, it coordinates cell activities like protein synthesis and cell division. Anatomically the nucleus is made up of several components: nuclear envelope, nuclear lamina, nucleolus, chromosomes, nucleoplasm are some of these components.
Explanation:
The nucleus controls and regulates the activities of the cellular (e.g., growth and metabolism) and carries the genes and systems that include the hereditary statistics.
What are the two number one capabilities of the nucleus?The nucleus has 2 primary features: it's miles responsible for storing the cell's hereditary cloth or the DNA. it is liable for coordinating the various essential cell activities along with protein synthesis, cellular division, growth, and a bunch of other critical features.
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How does the process of osmosis ensure that our cells maintain homeostasis?
Answer:
Osmotic homeostasis is maintained despite the influence of external factors such as temperature, diet, and weather conditions. Osmosis is the diffusion of water across a membrane in response to osmotic pressure caused by an imbalance of molecules on either side of the membrane.
How can DNA be useful in phylogeny? Question 14 options: A) DNA from every organism in a clade is sequenced to identify genetic mutations that have occurred. B) DNA sequences from different species can be compared, giving us more information about their evolutionary relationships. C) DNA sequences are rearranged to predict how species could evolve in the future. D) DNA isn't useful in phylogeny, as morphological characteristics are used exclusively in phylogeny.
Answer:
The correct answer is - option B. DNA sequences from different species can be compared, giving us more information about their evolutionary relationships.
Explanation:
The study of the evolution of a species in a longer period of time and its evolutionary relation with other species is phylogeny. DNA is the basis of the molecular phylogeny of a species to find out the evolution of species.
Genetic mutations, a sequence of nucleotides, and other information of DNA helps in the establishment of divergence from common ancestry. By comparing the information it gives an idea about the evolutionary ancestry of two or more species.
How do the isotopes of hydrogen differ? *
Answer:
D. in the number of neutrons :)
Explanation:
An isotope is one of two or more forms of the same chemical element. Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.
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Two objects, a box weighing 103 kg and a football weighing 0.41 kg, are dropped at the same time from the top of a 98 m tall building. If air resistance is negligible, which of the two will touch the ground first?
Answer:
The box would it weighs more. I hope this helps. so sorry if this is wrong.
Explanation:
A teacher boils 200 g of juice in a sealed pot. The
vaporized juice condenses on the pot's lid and then drips
down the inside of the pot. Finally, the teacher measures
the mass of the contents of the sealed pot again.
What is the total mass of juice in the closed system?
A. 200 g
B. 100 g
C. 400 g
D. 300 g
Answer:
A
Explanation:
No matter was lost in the boiling and since it is a closed system the mass will stay the same unless released otherwise
Answer:A
Explanation:
Just took the quiz
All living cells have the same organelles.
true or false
Plant cell walls are primarily made of sugar.
true or false
The environment can cause the shape of a protein to change.
true or false
Turgor pressure is a result of a central vacuole being low or nearly empty of water.
true or false
Mitochondria make sugar for animal cells.
true or false
The space between organelles in a cell is just water
true or false
Proteins are what allow cells to move
true or false
Catalysts are polysaccharide enymes.
true or false
Of the 5 nucleotides used in RNA and DNA, only one (A) is used for energy transport in the cell.
true or false
Changing the shape of the active site of an enzyme will probably allow it to catalyze more reactions.
true or false
Denaturing a protein makes it permanently unusable by breaking peptide bonds.
true or false
Hydrogen bonds are responsible for the common secondary structures in protein folding.
true or false
Water is an organic molecule.
true or false
Sugars are organic molecules
true or false
Answer:
Question 1 - false
Question 2 - true
Question 3 - true
Question 4 - false
Question 5 - false
Question 6 - false
Question 7 - false
Question 8 - true
Question 9 - true
Question 10 - false
Question 11 - false
Question - false
Question 12 - true
Question 13 - false
Question 14 - true
Answer:
1) All living cells have the same organelles.
false
2) Plant cell walls are primarily made of sugar.
true
3) The environment can cause the shape of a protein to change.
true
4) Turgor pressure is a result of a central vacuole being low or nearly empty of water.
false
5) Mitochondria make sugar for animal cells.
false
6) The space between organelles in a cell is just water
false
7) Proteins are what allow cells to move
true
8) Catalysts are polysaccharide enzymes.
false
9) Of the 5 nucleotides used in RNA and DNA, only one (A) is used for energy transport in the cell.
false
10) Changing the shape of the active site of an enzyme will probably allow it to catalyze more reactions.
false
11) Denaturing a protein makes it permanently unusable by breaking peptide bonds.
false
12) Hydrogen bonds are responsible for the common secondary structures in protein folding.
true
13) Water is an organic molecule.
false
14) Sugars are organic molecules
true
Explanation:
Just took the test!
factors that affects potential and kinetic energy
Answer:
See Below.
Explanation:
Kinetic energy depends on the potential energy of an object but they both have similar factors as they are inter-related. Kinetic energy is the motion of the object depending on its potential.
Potential energy is a positional based value, it literally means what it says, the potential or possibility for the creation of energy.
To demonstrate this think of dropping a ball off of a building:
The potential energy of that ball will be greater if the ball is dropped from a higher floor than a lower one. It will also be greater or lower depending on the mass of the object (from the formula in physics F=ma or Force = mass x acceleration). Gravity is another factor. If we drop a ball on Earth and then on the Moon, where the gravitational pull is 1/6th that of the Earth's, of course it will not be the same.ATP and photovoltaic cells are similar because
A. they are both key components of plant cells.
B. they both produce chemical and electrical energy.
C. they are both key components of solar panels.
D. they both use energy from the sun to separate electrons from atoms.
2021 answers
1. they both use energy transport chains
2. ATP
3. stored as chemical energy
4. carbon dioxide + water + light --> sugar + oxygen
5. photosynthesis
100% :) please like if I am correct
Answer:
100% 2022
Explanation:
1. they both use energy transport chains
2. ATP
3. stored as chemical energy
4. carbon dioxide + water + light --> sugar + oxygen
5. photosynthesis
How does the structure of DNA determine how genetic information is inherited?
what would most likely occur during the formation of rocks.
Answer:
Solidifications of molten materials.
In your own words explain how "Carrying Capacity" plays a vital role in today's world and our future as well.
Answer:
Carrying Capacity is very important for today as well as for the future.
Explanation:
Carrying Capacity refers to the maximum population of a particular organism that a specific environment can hold. In each and every environment, there are different population of organisms present due to the availability of resources such as food, water and space for living. If these resources are present in large amount then the population of organism will be higher but if these resources are limited, then the population will be lower. Carrying Capacity is also important for the future because with the passage of time, population of human increases which destroy the forests because human requires area for living. So for cutting of forests, the animals migrated to other areas and sometimes die due to no space available for them.
In the rock cycle, what happens to the magma and lava once they cool and harden?
Answer:
For magma to become sediment, it would first cool and harden and become igneous rock. Weathering and erosion would expose the igneous rock and break it into sediments.
Answer:It moldens into a ingenious rock or obsidian
Explanation:After magma is cooled a cool air current flows throw the magma and it slowly start to harden into a obsidian like shape and makes a ingenious rock and basically cools it from the inside out turn it into a charcoaly obsidian
A classmate argues that Schwann and Schleiden are responsible for the cell theory. How do you respond? Cite facts and use logical reasoning to support your argument.
Answer:
Yes.
Explanation:
Yes, Schwann and Schleiden are responsible for the cell theory, both the scientists presented the cell theory in 1839. I agree with the argument of my classmate because the person who first presented cell theory was both Schwann and Schleiden. Schwann works on plant cell whereas Schleiden works on animal cell and formulate cell theory. So my classmate's argument is right about cell theory.
Schwan and Schleiden proposed the first cell theory, suggesting spontaneous generation. Virchow changed it proposing cell division. After many years and the contribution of many researchers, the modern cell theory emerged.
---------------------------------------------------
Schwann studied animal tissues. Through careful observation, he concluded that all animal tissues were made of cells.
Simultaneously, Schleiden arrives at the same conclusion when studying vegetable tissues.
Around 1830, they met and together proposed the first cell theory. The theory stated that:
1. Every living being is made of cells.
2. Cell is the basic unit of life.
3. Cells are originated from spontaneous generation.
Virchow, who studied human tissues, sow the cell in its dividing process.
He proposed that cells were not originated from spontaneous generation, as Schwann and Schleiden had stated.
Instead, he said that cells were the product of other pre-existing cells and were originated by cellular division.
Virchow rejected the third state of Schwann and Schleiden’s ideas.
According to these sequence of events, the original cell theory changed to
1. Every living being is made of cells.
2. Cell is the basic unit of life.
3. Cells are originated by cellular division.
After many years of continuous studies about cells and their functions, the modern cell theory emerged.
In general terms, the modern theory can be resumed as,
1. Every living being -unicellular or multicellular- is made of cells, which are the most basic units of life.
2. Cell control the vital functions of organisms.
3. Cells proceed from preexistant prokaryotic cells, and are originated by cellular division.
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Why does a Chlamydomonas organism need to locate light
Answer:
the ability to detect the direction of light, to make the right turn and to stay oriented, is a direct consequence of the helical path of the organism, the orientation of its eyespot relative to the helix-axis, and the special shielding properties of eyespot and cell body.
Explanation:
hope this helps :)
Chlamydomonas is an algae. It is a biflagellate organism. It can swim and therefore, exhibit phototaxis. Chlamydomonas needs to locate light in order to move and grow.
What is Chlamydomonas?Chlamydomonas is a biflagellated algae which exhibits both positive and negative phototaxis. Phototaxis is the directional movement of an organism in response to light (stimulus).
The green alga, Chlamydomonas reinhardtii, can swim toward light (positive phototaxis) to increase photosynthesis, but it can also swim away from bright light (negative phototaxis) to avoid damage to molecular complexes required for photosynthesis.
Chlamydomonas grows at a faster rate with higher light intensity due to its photosynthetic nature, provided all other required nutrients for its growth are constant in all treatments. Light acts as an important factor for growth in these organisms.
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Describe one similarity and one difference
between the structure of a euglena and
an amoeba.
Answer:
can you give me a pic????
The sun's energy is released when ____ this converted into energy
mass
liquid
light
chlorophyll
.
How many protons, neutrons, and electrons are present in an atom of hafnium, Hf, with a mass number of 178?
Answer:
Name Hafnium
Atomic Mass 178.49 atomic mass units
Number of Protons 72
Number of Neutrons 106
Number of Electrons 72
Answer: 72 protons, 178 neutrons, 106 electrons
Explanation:
I need to know what the Ghrelin is for school
Answer:
It is a hormone that increases appetite
Which homeostatic process is characterized by the diffusion of only water molecules?
active transport
osmosis
passive transport
dynamic equilibrium
Answer:
It is osmosis
Explanation:
Escribe lo que piensa de la siguiente suposición si es cierta o no: " Todas las semillas de una fruta sobrevivirán, se convertirán en adultas y tendrán sus propias frutas. " Describa de si esta suposición es verdadera para otros organismos como las bacterias y animales además de las plantas)
Answer:
Esta suposición no es realista, muchas de las semillas no llegarán a la etapa adulta y por lo tanto no podrán generar nueva progenie
Explanation:
Acorde a la teoría de la evolución por selección natural planteada por Darwin, solamente aquellos organismos que se encuentren mejor adaptados al ambiente en el que viven podrán sobrevivir y de este modo perpetuar sus genes en la progenie. Este es un principio que aplica a todos los tipos de organismos vivientes (es decir, plantas, animales, bacterias, etc). Darwin definió a este proceso evolutivo como 'descendencia con modificación', donde aquellos organismos que se encuentren mejor adaptados a su ambiente transmitirán sus rasgos a la descendencia, mientras que aquellos que no se encuentren suficientemente adaptados no podrán sobrevivir.
