DNA Synthesis
In preparation for cell division, the cell makes a replica of its entire DNA. This happens during the S, or synthesis, phase of the cell cycle. Mitosis is the division of one cell into two cells that each has a nucleus and the same amount of DNA as the original cell.
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Evolution represents biological change that accumulates over time. However, this change is not always apparent at every level in the biological hierarchy. Scientists most commonly observe the effects of evolution at the ________ level.
Answer:
population level
Explanation:
it ocurrs at the population level as scientists requires genetic variation between individuals of a population for natural selection
what is the name of the process in bacteria that involves dna transfer through a cytoplasmic connection known as a pilus?
Why is an atom said to be electrically neutral? Please i need further explanation
if the woman and a man with normal clotting function have one biological daughter and one biological son, which children are predicted to have hemphilia A
earthquakes occur at weak palces in the crust knows as
Answer:
Divergent plate Boundaries
why do heart cells have a higher percentage of mitochondria than liver and pituitary gland cells?
Answer:
This is because the heart requires large amounts of energy in order to pump blood to the rest of the body. The mitochondria produces ATP for energy, thus heart cells contain a higher percentage of mitochondria for energy to pump blood.
The heart cells have a higher percentage of mitochondria than liver and pituitary gland cells because the heart requires large amounts of energy in order to pump blood to the rest of the body. The mitochondria produces ATP for energy, thus heart cells contain a higher percentage of mitochondria for energy to pump blood.
What is the role of mitochondria in producing energy?The role of Mitochondria in producing energy are in charge of producing energy as ATP. The heart muscle has the highest energetical requirements. Several mitochondria compose these muscle cells because too much energy is needed to pump blood constantly.
Mitochondria are known as the one of the biggest organelles in the cell. They are semi-autonomous organelles surrounded by a double membrane that reproduce by binary fission and contain their own DNA, RNA, and ribosomes. Mitochondria are in charge of aerobic cell respiration, the process by which cells use organic compounds and turn them into energy.
Therefore, The mitochondria produces ATP for energy, thus heart cells contain a higher percentage of mitochondria for energy to pump blood.
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Construct a table to give ONE source, the functions and the effects of the deficiency of the following micronutrients, Vitamin C, Vitamin D, Iron and iodine.
Answer:
I say Vitamin D.
Explanation:Confirmed with the test results.
please help, thank you!
Answer:
regulates which materials enter and leave the cell
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Which two activities are practical applications of magnetism?
A. Separating steel nails from aluminum nails
B. Using the North Star to find which way is south
C. Hammering steel nails into wooden boards
D. Finding which way is north with a compass
Answer:
It is d and a
Explanation:
Headlands are formed through wave deposition
True or False
Answer: True
Explanation: The movement of water and sediment down a beach caused by waves coming in to shore at an angle. A beach formed by longshore drift that projects like a finger out into the water. A sea arch is formed through wave erosion. Headlands are formed by through wave deposition.
An ocean pH change from 8.2 to 8.0 is NOT significant as the .2 change is very small.
So far, the ocean's pH has dropped from about 8.2 in preindustrial times to around 8.05. This seemingly small change may already be affecting ocean organisms and future CO2 emissions could lower ocean pH even further
Which RNA is directly responsible for catalyzing the peptide bond between amino acids during translation
Ribosomal RNA (rRNA) is directly responsible for catalyzing the peptide bond between amino acids during translation.
how long does it take new species to form on earth?
Research found that a major change to persist and for changes to accumulate took about one million years
Million of years...
tehy where evolving for a couple million years until we have the animals we have now
freshwater fish excrete nitrogenous wastes as _____.
Students observed the shape of the Moon with the same amount of time between each observation. They drew this sequence.
Complete each of the 2 activities for this Task.
Activity 1 of 2
How long did it take them to record this sequence?
(Mark the one best answer.)
A.
About 2 days
B.
About 2 weeks
C.
About 2 months
D.
About 2 years
Answer:
B about 2 weeks
Explanation:
Two weeks is how long it would take to observe five moon phases. Rather that 2 months which would show two full moon cycles.
in which phase of the cell cycle do cells check to determine whether the dna is fully and correctly replicated?
Answer:
at the end of G2
Explanation:
What is is called when a doctor removes both an ovarian cyst and the affected ovary?
Answer:
b. Oophorectomy
Explanation:is correct. post protected
In osmosis, water moves from an area of high solute concentration to an area with lower solute concentration. True False
Answer:
FALSEExplanation:
Osmosis is the process by which molecules of a solvent pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.
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how would you differentiate between pollen cells and algae cells
persistent depressive disorder, or dysthymia, is characterized by
Given what we know, we can confirm that persistent depressive disorder, or dysthymia, is characterized by the presence of prolonged depressive symptoms.
What is a depressive disorder?A depressive disorder is a condition that causes a lack of motivation, happiness, and other positive feelings.Depression is experienced by millions of people from around the world. It can be induced by events in one's life, or be caused by a chemical imbalance in the brain. What separates it from depression?What separates a depressive disorder from a more common case of depression is the frequency by which the symptoms manifest. They are known as depressive disorders when the symptoms are chronic in nature, meaning they manifest repeatedly and for prolonged durations.Therefore, we can confirm that persistent depressive disorder, or dysthymia, is characterized by persistent symptoms relating to depressive episodes, that are chronic in nature and often caused by chemical imbalances in the brain.
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Where on the planet would you receive more direct sunlight?
A) locations in the mid-latitudes
B) at the North Pole
C) at the South Pole
D) places near the Equator
Answer:
D. places near the equator
Underground stem of which of the following does not store food? a)Zaminkand
b)Colocasia
c)Turmeric
d)Asparagus
Answer:
asparagus doesn't store food.
According to the chemiosmotic hypothesis, mitochondrial ETCs are organized so that _________ move across the inner membrane from the mitochondrial matrix to the intermembrane space as _________ are transported down the chain.
Answer:
Explanation:
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the small bones in the middle ear that transmit vibrations to the inner ear
Answer:
, yes..............
Explanation:
because the vibrations are transmitted to the inner ear after the bones amplify it
Ossicles are the body's tiniest bones. the malleus (hammer), incus (anvil), and stapes (stirrup). Ossicles amplify sound.
What are ossicles?Ossicles are very little bones; in fact, they are the tiniest bones in the entire human body. The malleus (hammer), the incus (anvil), and the stapes are the names of the three bones because of the forms they make (stirrup). The sound is amplified even further by the ossicles.
In order to reach the eardrum, sound waves must first enter the outer ear and then proceed via the ear canal, which is a very short conduit. The incoming sound waves cause the eardrum to vibrate, and the eardrum in turn transmits these vibrations to three very small bones located in the middle ear. The malleus, incus, and stapes are the names given to these three bones.
Hearing is dependent on a series of intricate steps that convert sound waves in the air into electrical impulses. These steps are necessary for hearing.
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The products of photosynthesis are the
Answer:
Oxygen (byproduct) and Glucose (sugar for cell use)
Explanation:
A cycle between cellular respiration and photosynthesis exists in plants.
Photosynthesis -> Oxygen and Glucose - > Cellular respiration - > Carbon Dioxide and ATP (energy for cellular use)
Then, the cycle continues.
which region of the brain contains gyri and sulci?
Answer:
The cerebral cortex, or the outer layer of the cerebrum
Explanation:
Adolescent may conform with peers out of fear of
A. Becoming depressed.
B. being arrested.
C. establishing a new identity.
D. being disliked
E. Other
in gel electrophoresis, a loading dye is usually added to the sample of dna to be loaded in the wells of the gel. why would this be important?
Answer:
Gel loading dye is typically made at 6X concentration (0.25% bromphenol blue, 0.25% xylene cyanol, 30% glycerol). Loading dye helps to track how far your DNA sample has traveled, and also allows the sample to sink into the gel. ... It is important to use the same running buffer as the one used to prepare the gel.