Answer:
What must happen before a cell can begin mitosis? The chromosomes must be duplicated, which occurs during interphase.
Explanation:
What is the difference between chromosomes, chromatin, and DNA?
I
Answer:
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. and I can't think of the other one sorry.
Explanation:
Which structure aids in balancing the amount of water inside and outside of both plant and animal cells?
Answer:
vacuole
Explanation:
whats the difference between saturated and unsaturated fat
Answer:
The number of double bonds in the fatty acid chain
My thoughts about genetically modified crops
The type of fossil fuel made from the remains of ancient plants that lived millions of years ago is A. peat B. coal C. oil D. natural gas E. synfuel
Answer is B coal
Explanation:
thank you
Why is it necessary to prepare karyotypes by viewing somatic.
Answer:
Cells can be made to divide and mitosis can be halted at metaphase; both sets of chromosomes need to be examined.
I hope this helps.
Which of the following characteristics least relates to eukaryotic cells?
cells that do not have a nucleus or membrane bound organelles.
cells that have a nucleus and membrane bound organelles.
Fungi
Protists
Which model correctly explains the meaning of 3’ and 5’ in nucleic acids?.
Answer:
5' carbon is bonded to the phosphate group and the 3' carbon is bonded to an OH group.
The 5' carbon is bonded to the phosphate group and the 3' carbon is bonded to an OH group.
Which component of DNA determines the 3 and 5 ends of the strands?As new nucleotides are added to a strand of DNA or RNA, the strand grows at its 3' end, with the 5′ phosphate of an incoming nucleotide attaching to the hydroxyl group at the 3' end of the chain.
How are nucleotides linked together 5 to 3?DNA and RNA are composed of nucleotides that are linked to one another in a chain by chemical bonds, called ester bonds.
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One place in the us where tidal wouldn’t work
Answer:
Tidal wouldn’t work anywhere in the US
Explanation:
To use tidal you would have to be close to a great body of water the only US state that is even close is Georgia
Although the human colon may be one of the most diverse microbial communities on Earth, the majority of the bacteria are classified as __________.
Answer:
prokaryotic bacteria/cells are found to be the most common type of single organisms.
Although the human colon may be one of the most diverse microbial communities on Earth, the majority of the bacteria are classified as anaerobes.
What are anaerobic organisms?Anaerobic organisms are life forms that generate ATP in hypoxia conditions (absence of oxygen).
ATP is the energy con of the cell to carry out different cellular metabolic functions.Anaerobic bacteria form part of the intestinal microflora in humans.In conclusion, although the human colon may be one of the most diverse microbial communities on Earth, the majority of the bacteria are classified as anaerobes.
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which statement correctly distinguishes DNA and RNA?
Which of the following are elements? (Select all that apply.)
Na
H2O
C
KCl
Grade -5-
Answer:
Na & C
Explanation:
What does a plant need to create a glucose molecule in photosynthesis?
Choose all correct answers.
carbon dioxide
sunlight
water
oxygen
multiple choice
Carbon dioxide and oxygen.
Answer:
sunlight
water
oxygen
Explanation:
Two investors are each issued one bond with the same face value, maturity date, and yield. After both bonds have reached
maturity, it is discovered that one of the bondholders received a greater total return on her investment. If all expected payments
were received, which of the following could explain the difference in return? (1 point)
Answer: One of the bonds was sold at face value while another was sold below face value.
Explanation: I took the quick check
A bond was sold at its face value, while another was sold for less.
What is the investment?An investment is a purchase undertaken with the hope of earning money or increasing capital. Appreciation is the term for an asset's value rising over time. When someone invests in a product, they do not aim to use it for immediate consumption but rather as a means of generating money in the future.
An investment always entails the use of some resource today, such as time, money, effort, or an item, with the hope of receiving a return that is higher than the initial investment. An investor might, for instance, purchase a financial asset right away in anticipation that it would generate income over the road or be able to be sold for a profit at a higher price.
Therefore, A bond was sold at its face value, while another was sold for less.
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Characteristics of deciduous forests include which of the following? O Mild temperatures, regular precipitation O High temperatures and precipitation Freeze temperatures, dry seasons O Cold winters, minimal rainfall
Answer:
Mild temperatures
Explanation: The temperatures are usually around 86(degrees Fahrenheit) in the summer and 50(degrees Fahrenheit) in the winter
how can you relate the heat and phase changes into a real-life situation?
Putting a liquid in a freezer will turn it into a solid/ice. Boiling water will turn the water into gas. Melting an ice cube will turn into liquid because of the heat.
cual es el sentido de la vida xd
Answer:
Explanation:
what
Which of the following is an advantage of sexual reproduction?
A. Produce identical copies of an organism.
B. Produce natural variation to adapt to environmental change.
C. Quickly populate a new habitat.
D. Reproduce very quickly.
Answer:
B
Explanation:
Produce natural variation to adapt to environmental change is an advantage of sexual reproduction. Correct Option is 2.
The advantage of sexual reproduction is that it produces genetic variation within a population. During sexual reproduction, offspring inherit a combination of genes from both parents, leading to unique genetic combinations. This genetic diversity results in natural variation among individuals within a population.
This variation is advantageous because it allows a population to better adapt to changing environmental conditions. In a changing environment, some individuals may possess traits that are better suited to the new conditions, making them more likely to survive and reproduce. Through natural selection, these advantageous traits can become more prevalent in the population over time, enhancing the population's overall ability to adapt and thrive.
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how does deforestation affect the rainfall pattern of an area?
Answer:
deforestation can significantly reduce tropical rainfall far from the area where trees have been cut down.
Explanation:
That's the conclusion of new research that shows deforestation can significantly reduce tropical rainfall far from the area where trees have been cut down.That's because air passing over forests picks up moisture given off by trees and plants, fueling rains. When those trees disappear, so does some of that rain.
state the functions of vitamin d
Answer:
For maintaining healthy bones
It also helps the intestines to stimulate and absorb calcium
Answer:
Explanation:
Vitamin D is both a nutrient we eat and a hormone our bodies make. It is a fat-soluble vitamin that has long been known to help the body absorb and retain calcium and phosphorus; both are critical for building bone.
Which of the following molecules do NOT break down Proteins?
A. Pepsin
B. Protease
C. Protein kinase
D. Trypsin
Answer:A pepsin
Explanation:
Answer: Protein kinase is your anwser please mark brainliest thank yoou
Explanation:
what is gene expression
Answer:
Gene expression is the process the cell uses to produce the molecule it needs by reading the genetic code written in the DNA.
Explanation:
To do this, the cell interprets the genetic code, and for each group of three letters it adds one of the 20 different amino acids that are the basic units needed to build proteins.
If a person exerts 150 N of force to move 10 meters, then how much
work did they do?
Mr. Carter draws a box with a particle diagram of a liquid on the whiteboard. Next, he draws another box with a particle diagram of a solid, but he leaves this box blank for one of his students to fill in.
What should Mr. Carter's student draw in the blank box?
Mr. Carter's student must draw particles very close together.
We can arrive at this answer as follows:
Mr. Carter is showing how the particles fit into a solid substance and a liquid substance.In a liquid substance, the particles are separated from each other, which allows the characteristic fluidity of liquids.In a solid substance, the particles are very close to each other, not allowing space between them.In this case, we can say that Mr. Carter's student, when drawing the particles of solid substance, must draw them very close to each other, not allowing any space between them, preventing them from moving.
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A network of interwoven anterior rami of spinal nerves is a:
what's makes up the brain and a brief explanations
Answer: I'm not quite sure what you're asking but...
Explanation: The largest part of the brain, the cerebrum initiates and coordinates movement and regulates temperature. Other areas of the cerebrum enable speech, judgment, thinking and reasoning, problem-solving, emotions and learning. Other functions relate to vision, hearing, touch and other senses.
7)When a body cell divides through the process of mitosis, the chromosomes in the daughter cells *
are formed when chromosomes from the parent cell cross over.
are identical to the chromosomes of the parent cell.
represent only the healthiest chromosomes from the parent cell.
represent only half of the chromosomes in the parent cell.
8)Before a cell enters mitosis, what happens to the genetic information in that cell? *
The information is duplicated.
The information is selectively mutated.
The information is halved.
The information is completely changed.
9)Which of the following best describes how mitosis is related to cellular reproduction? *
Mitosis is a phase in asexual reproduction that results in the formation of similar, but not identical, nuclei in the daughter cells.
Mitosis is a phase in asexual reproduction that results in the formation of identical nuclei in the daughter cells.
Mitosis is a phase in sexual reproduction that results in the formation of similar, but not identical, nuclei in the daughter cells.
Mitosis is a phase in sexual reproduction that results in the formation of identical nuclei in the daughter cells.
10)Which of the following occurs during the interphase stage of the cell cycle? I. DNA is replicated. II. The cell divides. III. The cell grows in size. *
II only
I and III only
I, II, and III
I and II only
11)A diagram of the cell cycle is shown below. Which of the following statements best describes what happens during the S phase of the cell cycle? *
The cell's chromosomes separate.
The contents of the cell divide.
The cell's DNA is replicated.
The cell prepares for mitosis.
12)At a point during a cell's development, it begins to differentiate. How does differentiation occur? *
Certain genes are turned on and others are turned off; this action produces adult cells that are specialized
As a cell matures, genes that are not necessary to its function are ejected out of the cell through active transport.
The number of chromosomes in the cell is reduced by half; this action triggers the specialization of the cell.
A developing cell's function is determined by the number of organelles that are contained in the cell.
Answer:
are identical to the chromosomes of the parent cell
Explanation:
4. Two objects were lifted by a machine. One object had a mass of 2 kilograms, and was lifted a t a speed of 2 m/sec. The other had a mass of 4 kilograms and was lifted at a rate of 3 m/sec.
Question a. Which object had more kinetic energy while it was being lifted?
Question b. Which object had more potential energy when it was lifted to a distance of 10 meters? Show your calculation.
Explanation:
a) Case1, by the formula, ke=½mv².
m=2kg, v=2m/s
ke = ½×2×2² = 4J
Case2, by the formula, ke=½mv².
m=4kg, v=3m/s
ke = ½×4×3² = 18J
therefore, the second object has more kinetic energy.
b) Case1, by the formula, pe = mgh
m=2kg, g=9.8m/s²(not given)(can consider 10m/s² when given), h= 10m
Pe1(write 1 in subscript) = 2×9.8×10= 196J.
Case2, by the formula, pe = mgh
m=4kg, g=9.8m/s²(not given)(can consider 10m/s² when given), h= 10m
Pe2(write 2 in subscript) = 4×9.8×10= 392J.
so, the object 2 has more potential energy.
hope this helps you.
____________ diffuses out of the alveoli and into the pulmonary capillaries, while _______ diffuses out of the pulmonary capillaries and into the alveolar sacs.
Answer: Oxygen; Carbon Dioxide
Explanation:
Oxygen diffuses out of the alveoli and into the pulmonary capillaries, while carbon-dioxide diffuses out of the pulmonary capillaries and into the alveolar sacs.
What are pulmonary capillaries?PULMONARY CAPILLARIES: Deoxygenated blood enters into the pulmonary arteries from the right side of the heart and is delivered to the pulmonary capillaries, the smallest blood vessels inside of the lungs, attached to the walls of the alveoli.
Moreover, oxygenated blood then passes from the capillary beds through venules into the pulmonary veins. The pulmonary veins transport it to the left atrium of the heart.
Therefore, the pulmonary arteries are the only arteries that carry deoxygenated blood, and the pulmonary veins are the only veins that carry oxygenated blood.
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3. Compared to the wavelength of ultraviolet radiation,
the wavelength of infrared radiation is
A) shorter
B) longer
C) the same
Answer:
the correct answer is Longer
Explanation:
hope this helps
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The Correct choice is ~
LongerCompared to the wavelength of ultraviolet radiation,
the wavelength of infrared radiation is longer