Answer:
They are composed of microtubules
Explanation:
The mitotic spindle is a structure composed of microtubules which segregates chromosomes into the daughter cells during mitosis. A microtubule is a rope-like component of the cytoskeleton. The centrosome is an organelle that serves as a microtubule organizing center during cell division.
PLEASE HELP! ILL MARK YOU AS BRAINLIEST‼️❤️what are the molecules that
result from the breakdown of glucose sugar
and six oxygen molecules?
Answer: ATP (adensoine triphosphate)
which is a flap of tissue that folds down to close off the entrance to the larynx and trachea when you swallow?
can someone summarize this for me
“summarize the information to demonstrate that you understand the concept of negative feedback “
Answer:
Short paragraph:
Homeostatis is the process by which the body maintains a stable internal environment. The hypothalamus is a part of the brain that regulates many key body processes. It works to restore the system to its normal state when an internal change in one of these systems occurs.
Long paragraph:
The hypothalamus is a part of the brain that regulates many key body processes including internal body temperature, hunger, thirst, blood pressure, and daily (circadian) rhythms. When the brain receives signals from the body about an internal change in one of its systems, it works to restore the system to its normal state. For example, the normal internal temperature for the human body is approximately 98.6 degrees Fahrenheit. If the body temperature rises because of exercise, the body will try and cool itself off. This happens through coordination between the hypothalamus and the various body systems that are affected.
A woman standing and watching the stars on a cool, calm night will lose most of her body heat by _____.
Answer: Not moving in the cool weather
what happens to the i band when the sarcomere contracts
Answer:
The A band stays the same width and, at full contraction, the thin filaments overlap. ... The I band contains only thin filaments and also shortens. The A band does not shorten—it remains the same length—but A bands of different sarcomeres move closer together during contraction, eventually disappearing.
When two substances create a solution, what happens to its mass?
A.The mass is increased.
B.The mass is decreased.
C.The mass stays the same.
D.The mass disappears.
what products from the ""light"" reactions are used in the ""dark"" reactions?
Answer: Photosynthesis: The process of synthesis of food form inorganic raw materials in chlorophyll
The reactants are water and carbon dioxide while glucose, water, and oxygen are products
Dark reactions occur in the grana of chlorophyll, and get energy from ATP and NADPH.
The reactants are water and carbon dioxide.
The products are organic sugar molecules
Explanation:
PLZ HELP ASAP(giving 80 points):
2. Write a micro-theme(short paragraph 100-300 words) using and explaining the following terms.
a. "Survival of the fittest"
b. Adaptation
c. Evolution
Answer:
The process through which creatures evolve is known as evolution. Mutations cause genetic variety throughout populations, and the ecosystem works with this diversity to select people who are most suited to their surroundings. Eventually, a species can develop into a plethora of others; as a theory suggests that sapiens started as monkeys but evolved into the humanoid beings that we are today. In biology, adaptation is the procedure where a species fits to its habitat; it is the outcome of natural selection acting on hereditary diversity over numerous generations. Survival the fittest is a saying that suggests the fittest survive, not the weak. This is commonly seen in everyday life, whether with humans, animals, plants, it holds the same meaning. An example would be that a person in better physical and mental health would go farther and live longer than one with weak physical and mental health.
The concept of "survival of the fittest" is a key tenet of evolution, which refers to the idea that individuals with traits that provide them with a competitive advantage in their environment are more likely to survive and reproduce than those without these traits. This process of natural selection leads to the gradual accumulation of beneficial traits in a population, resulting in adaptation and evolution over time.
What is adaptation?Adaptation refers to the process by which organisms develop characteristics that allow them to better survive and reproduce in their environment, such as camouflage or the ability to digest new types of food.
Evolution refers to the broader process of change over time in a population's genetic makeup and physical characteristics, resulting from the interaction between genetic variation, natural selection, and other factors. Together, these concepts help explain how organisms are able to adapt and change over time, resulting in the diversity of life that we see today.
The study of evolution has important implications for understanding the history and development of life on Earth, as well as for addressing modern challenges such as biodiversity loss and climate change.
To know more about Evolution:
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What are the functions of the plant cell's parts. l will mark you the brainest.
Answer:
There are xylem vessels and pholem cell it is the major building block for the respiration and growth of plants
Which of the following is a disadvantage of genetic engineering?
May cause negative side effects
Cannot create new organisms
Reduces the nutrition value of food
Increases the scarcity of food in the world
Answer:
may cause negative side effects
Explanation:
Answer:
May cause negative side effects.
Explanation:
I took the test
Genetic Engineering is used to put genes from one organisms into another. The new organism can reproduce. And while it may seem like it's the answer the nutrition value and scarcity of food is in no way impacted. It's not like cloning. Where more are being created in large amounts with similar diets. They can be cross-pollinated with organisms with different diets. So the only obvious answer would be the negative side effects.
PLEASE NAME ME BRAINLIEST! IT WOULD MEAN A LOT!!!!
34 Nutrients are made up of smaller basic units. Nutrients can be identified by food tests.
Which nutrient is a protein?
nutrient
smaller basic units
food test
A
amino acids
Benedict's test
B
amino acids
biuret test
C
sugars
Benedict's test
D
sugars
biuret test
Answer:
What is B amino acids
By biuret test
Explanation:
A Biuret is a compound formed by heating urea to 180° C. When biuret is treated with dilute copper sulfate in alkaline condition, a purple colored compound is formed. This is the basis of biuret test widely used for identification of proteins and amino acids.
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Which question is a nonscientific question?
Why are roses the best flowers.
Does the color of a rose affect how long it blooms.
Will a rose plant bloom faster if it is fertilized.
Do rose plants grow faster in higher temperatures.
Answer: What roses are the best flowers is a non-scientific question.
Explanation: What flower is better is determined by personal opinion. I might think the red roses are prettier and you might think the white ones are. Where all the other questions can be tested all equally and it is not an opinion.
Answer:
why are roses the best flowers
differentiate bw jellyfish and hydra
Explanation:
The polyp form is found in the genus hydra, whereas the most typical form of Medusa is found in the group called sea jellies"(jellyfish).
which of the following is a true statement about glycolysis?
A. electrons and hydrogens get transferred to NAD+, making NADH
B. Electrons and hydrogens get removed from glucose when it gets oxidized
C. ATP gets made when a phosphate is transferred to ADP
D. ALL OF THE ABOVE
All the options are true statements regarding the glycolysis and its mode of
operation.
Glycolysis involves the breakdown of glucose in order to release energy.
This produces pyruvate, two hydrogen ions , two molecules of water and
the free energy is used to produce ATP
In glycolysis, electrons and hydrogens get removed from glucose when it
gets oxidized and then they get transferred to NAD+, making NADH.
The ATP is generated by the transfer of a phosphate to the ADP to form ATP
which is a source of energy.
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Guys please help me this is my second time asking the same thinggg pls
How are coastal ecosystems a major source of oxygen for the rest of Earths waters?
Answer:
The ocean produces oxygen through the plants (phytoplankton, kelp, and algal plankton) that live in it.
Explanation:
These plants produce oxygen as a byproduct of photosynthesis, a process which converts carbon dioxide and sunlight into sugars the organism can use for energy. (hope this helps <3)
Help this is due in an hour….
Answer:
I'm sure it's A
Explanation:
the thin strand of pia mater that helps to anchor the spinal cord to the coccyx is the
Answer:
filum terminale
The filum terminale is a thin strand of pia mater that helps anchor the conus medullaris to the coccyx
what is the major energy carrier molecule in most cells
Answer:
mitochondria
Explanation:
what is the transfer of energy in the form of electromagnetice waves
Answer: Electromagnetic radiation.
Explanation: The transfer of energy by electromagnetic waves is called electromagnetic radiation. Electromagnetic waves can transfer energy through matter or across empty space.
In bakery when _______ is added to the dough for preparing bread, the dough rises
Answer:
Yeast
Explanation:
yeast causes dough to rise when combined.
please mark me as brainliest
when reading a book, the ciliary muscle will __________, the suspensory ligament will __________, and the lens will become more __________.
Please answer !! 16 points
what are the two characteristics of the maturity principle?
Answer:
The Maturity Principles: People tend to become more agreeable, emotionally stable, and socially dominant as they grow older. The Plasticity principle: While personality traits tend to be stable, they are not set in stone.
Explanation:
the hershey and chase blender experiment was designed to
Answer:
Hershey and chase sought to determine if the replicating piece of phages that entered bacteria during infection, the genetic parts, were solely DNA.
Explanation:
Help, needed. Its for a grade and im confused.
Answer:
Point Y
Explanation:
When the ball has the greatest potential energy, it has the most movement/it's at it's fastest. You can easily figure out these questions usually by picking the point that is lowest on these ramps. If two points are at the same level, pick the point that leads from the ball going down the steepest ramp.
Answer:
Point Y
Explanation:
which statement best explains the orientation of the phospholipid molecules in this model?
Answer:
B.) The hydrophilic phosphate groups of the phospholipid molecules are attracted to the aqueous internal and external environments.
Explanation:
Hope This Helps! :)
what characteristics do all prokaryotes have in common
Answer:
All prokaryotes have plasma membranes, cytoplasm, ribosomes, a cell wall, DNA, and lack membrane-bound organelles.
How might photosynthesis account for seasonal changes in carbon dioxide in the atmosphere? ( for example, why might carbon dioxide levels be highest in May but lowest in October? )
Answer:
When plants are growing, photosynthesis outweighs respiration. As a result, plants take more CO2 out of the atmosphere during the warm months when they are growing the most. Levels of carbon dioxide in the atmosphere rise and fall each year as plants, through photosynthesis and respiration, take up the gas in spring and summer, and release it in fall and winter. Now the range of that cycle is expanding as more carbon dioxide is emitted from burning fossil fuels and other human activities.
Explanation:
gogle
In living organisms the cell
cycle is closely regulated.
What do you think will
happen if cell division is not
controlled?
Answer:
Explanation:
Disruption of normal regulation of the cell cycle can lead to diseases such as cancer. When the cell cycle proceeds without control, cells can divide without order and accumulate genetic errors that can lead to a cancerous tumor
The cell life cycle is controlled meaning that:
The reproduction of the cell is controlled.
The cell has a "programated death" meaning that at some point, all normal cells die.
If there is a problem with these (uncontrolled reproduction or cells that just not die) a tumor will appear.
Where the tumor is just a mass of these cells that reproduce uncontrolled and that don't die naturally.
So the thing that happens if cell division is not controlled, is that a tumor will appear.
I do not understand this. It is about "Membrane Transport".
