Answer:
Mitosis plays an important part in the life cycle of most living things, though to varying extents. In unicellular organisms such as bacteria, mitosis is a type of asexual reproduction, making identical copies of a single cell. In multicellular organisms, mitosis produces more cells for growth and repair.
Explanation:
May it helps
IN AN ARCTIC ENVIRONMENT, A POLAR BEAR POPULATION WILL INCREASE AS A BLACK
BEAR POPULATION
Answer:
NO
Explanation:
Answer:
Decrease
Explanation:
Black bears are not well evolved to survive in arctic temperatures like polar bear are so the population of black bears in that area would probably decrease until it is wiped out because they can't survive there.
Which type of specialized cell is responsible for sending signals throughout the body?
Nerve cells
Epithelial Cells
Muscle Cells
Blood Cells
its multi choice
Answer:
NERVE CELL
THANKS FOR POINTS
Cytoplasm is liquid that keeps the cell _________.
A: moving
B: airy
C: solid
Answer:
I think the cytoplasm keeps the cell solid.
Explanation:
Cytoplasm keeps all the cellular organelles suspended. The cytoplasm helps to keep them in place. It is also the site of most metabolic activities in the cell, and it allows materials to pass easily throughout the cell.
The cytoplasm is the liquid that keeps the cell solid. The correct option is C.
What is cytoplasm?
The cytoplasm is a liquid that is filled inside the cell. Between the cell membrane and the nucleus, there is a jelly-like fluid called cytoplasm. It facilitates material exchange and storage among cell organelles.
Cytoplasm helps the cell to stay still and rigid. It places all the cell organelle into a fixed place and the transfer of ions and molecules is also done by the cytoplasm. It is made up of water, salts, and other various material.
They help in the coming in of the materials and going out of the materials. They also protect the cell from shock and other invasive, they make the cell rigid and flexible and also protect recall from each other.
Thus, the correct option is C. solid.
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At room temperature, more than half of the nonmetal elements are _____.
A.alloys
B.solids
C.gases
Answer:
C
Explanation:
how does each of your mutations affect the amino acid sequences? Are the mutations missense mutations, silent mutations or nonsense mutations?
a. Point mutation?
b. Frameshift-insertion?
c. Frameshift-deletion?
Answer:
the correct answer is B Frame shift insertion
Explanation:
plz give me brainiest
Frameshift-insertion mutations affect the amino acid sequences.
Thus, The insertion or deletion of nucleotide bases in amounts that are not multiples of three is referred to as a frameshift mutation in a gene.
This is significant because a cell reads the genetic code for proteins in groups of three nucleotides.
These so-called "triplet codons" each stand for one of the 20 different amino acids that go into making a protein. This normal reading frame will be disrupted by a mutation, which will result in an inaccurate reading of the entire gene sequence after the mutation.
Thus, Frameshift-insertion mutations affect the amino acid sequences.
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Viruses are one of the leading causes of illness in the world
True
False
Answer:
True
Explanation:
Answer:
False, but be sure you read what follows.
Explanation:
False: Heart disease and Most Cancers are not viruses. Or at least as far as I know. However complicating the issue is the fact that after a viral infection, heart disease can develop.
Cancer is another example, and the answer again is not black and white. 16% of all cancers can trace their beginnings to a bacteria or virus. That leaves 84% whose beginnings are not that clear.
The question is not black and white. I'd be careful how you think of it. If something is a complication, is that a direct cause? I still think the answer is false, but don't be surprised if your instructor disagrees. Move on to something a little less black and white.
1. Describe cell differentiation and include any environmental factors that play a role in gene regulation. 2. Explain the types of cells produced by meiosis. Include in your explanation the number of daughter cells produced, the number of chromosomes in each and whether they are diploid or haploid.
Answer:
1. Cell differentiation is the process whereby simple generalized cell develop into cell with specialization in function and structures. Some environmental factors that affect gene regulation include diet and nutrition, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens.
2. Gametes or sex cells are produced in meiosis and they have haploid number of chromosomes. In humans, the haploid number of chromosomes is 23 chromosomes.
Explanation:
Cell differentiation is the process whereby simple generalized cell develop into cell with specialization in function and structures. During the initiation of cell differentiation, transcription factors activate only the genes to be expressed. Some environmental factors that affect gene regulation include diet and nutrition, temperature, oxygen levels, humidity, and the presence of mutagens(factors that cause mutation).
Differentiation occurs in zygotes numerous times resulting in the formation of a fully developed organism. Also in unspecialized cells known as stem cells, differentiation occurs leading to the formation of various cells of the organs and tissues of the body.
2. Meiosis is a type of cell division in which gametes or sex cells are produced. A single cell divides twice producing daughter cells with half the number of chromosomes present in the parent cell. In humans, the chromosome number is 46. After, meiosis, the haploid number of chromosomes produced is 23.
Human blood's pH is 7.4. What kind of drinks are safe for us.
*
Highly Acidic
Neutral or close to neutral
O Highly Basic
pH O, PH1, PH13, and pH14
please help.
what happens to a monomer once it is used to create a polymer?
A. the monomer can be reused once the polymer is deconstructed
B. the monomer is destroyed
C. The monomer is permanently part of the polymer
The monomer can be reused once the polymer is deconstructed. So, the correct option is (A).
What is Monomer?A monomer is defined as a molecule which can react with other monomer molecules to form a larger polymer chain or three-dimensional network in a process called polymerization.
These are described as atoms or small molecules which bond together to form more complex structures known as polymers. There are four main types of monomer which include sugars, amino acids, fatty acids, and nucleotides.
Monomers can also be reused again when the polymer is deconstructed.
Thus, the monomer can be reused once the polymer is deconstructed. So, the correct option is (A).
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how do the respiratory and circulatory systems work together to maintain homeostasis
What is the name of the structure labeled A in the diagram below?
A
F
B
D
O A. Cytoplasm
OB. Nucleus
ООО
C. Mitochondrion
O D. Ribosome
Answer:
I believe its C
Explanation:
The structure labeled A in the diagram is of mitochondria.
What is mitochondria?It is a double membranous organelle.The space between its two membranes is called intermembrane space.It is also known as powerhouse of cell as it generates ATP.Cristae is present in it.
Hence, option C. mitochondria is correct.
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Larger lions have 15,000 kcal on average to expend per day and need to gain more than that to survive. If lions can only hunt less than 3 times per day, explain how lions obtain food with the lowest cost and greatest energy benefit.
Answer:
Wildebeest and Zebra.
Explanation:
Wildebeest and Zebra are the hunts which gives huge amount of energy and lowest cost of energy because Wildebeest gives 25000 available energy and 10000 energy cost to hunt and 15000 amount of energy remain while Zebra gives 170,000 while 55000 energy spend on the cost to hunt and 115000 is available energy to the lion that is enough for the lion per day energy requirements.
What might happen to a cell if its cell membrane fails to function properly?
Answer:
If cell membrane fails to function then the cell will not be able to perform its task properly. The organelles will stop working which means no more protein created, no more energy production in the mitochondria and no material comes in and out of the cell. Eventually the cell will die.
Your welcome
Answer:
If the cell membrane is unable to do its job properly, this can cause the cell to stop working properly. If many cells have bad cell membranes, the disease can affect an entire organ or even the whole body. In many of these cell membrane diseases, proteins within the cell membrane don't transport materials properly.
Explanation:
Choose the answer that best describes the order of the life cycle of a large star.
•gas clouds, star ignites, hydrogen depleted, red supergiant, super nova, neutron star
•gas clouds, star ignites, neutron star, hydrogen depleted, red giant supernova
•gas clouds, nuclear reaction, hydrogen depleted, red giant white dwarf
Answer:
I think its A gas clouds, star ignites, hydrogen depleted, red super giant, super nova, neutron star
Explanation:
Its Not gas clouds, nuclear reaction, hydrogen depleted, red giant white dwarf that is the wrong answer
A species is a group of organisms so similar to one another that they can breed and produce fertile offspring. True or False.
Answer:
True
Explanation:
That is the exact definition that I learned.
Earthquakes that occur far from plate boundaries are called
Answer:
intraplate' earthquakes
Explanation:
Which of these are MOST involved in exchanging gases?
1 point
heart
bladder
lungs
pituitary gland
lymph nodes
If you are reading this then congratulations I’m wasting your time and you could be doing school. But it’s weird since I’m constructing this sentence other then doing school your thinking that I’m a hypocrite. I am. And I wasted even more of your time is your reading the last word of this sentence.
tooru oikawa's favorite food is milk bread, and his personal motto is "if you're gonna hit it, then hit it 'till it breaks?!"
Viruses exist on a microscopic scale
True
False
Answer:
True
Taking a look at viruses under the microscope. Unlike other unicellular organisms like bacteria, viruses are commonly referred to as particles rather than cells.
ok this is the last one
Answer:
Compound sentence
Explanation:
it uses a conjunction to add the to sentences together.
In order to fit all of our DNA into our cells, it is wrapped around histone proteins and then...
A. reduction-bonded
B. bound to the wall of the Nucleus
C. compressed with a reducing sugar
D. supercoiled
Answer:
d
Explanation:
What type of substance do humans make?
Answer:
Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium. All 11 are necessary for life.
Explanation:
Brainliest; please?
What is the function of the macromolecule nucleotide?
A.SHRED STC
B.Immediate energy
C.Stored enery
D.Body instructions
Answer:
I believe that the answer is D.
Explanation:
A) is wrong
B) is carbohydrates
C) is lipids
D) is nucleic acids and the monomer of nucleic acids are nucleotides.
Explain at least three ways in which a mutation in an individual's DNA could occur, and describe at least 2 effects a mutation could have on an individual's traits.
Answer:
Explanation:
Three ways in which mutation could occur are
1) If an error occurs during DNA replication and it's not corrected in time by DNA polymerase.
2) If there is a deletion of a base(s) in the sequence of the DNA. The deletion of a DNA nucleotide/base could also cause a mutation as that could affect the formation of an enzyme or protein useful in building and/processing certain body parts/processes.
3) Thymine dimerization: Thymine dimers are mutations that prevent DNA from replication or even transcription hence preventing a cell from undergoing division (hence causes cancer). They are formed when covalent bonds are formed between the bases of a DNA sequence (somewhere around the carbon-carbon double bond).
The two effects are
1) It could cause cancer as described in (3) above (in the case of thymine dimer)
2) It could lead to deformity in an individual because of the gene that is supposed to code for the last finger has a base deletion, that could eventually lead to the absence of that finger or a shorter or "strange" finger.
What molecule contains the most energy ?
Answer:ATP
Adenosine 5'-triphosphate, or ATP, is the most abundant energy carrier molecule in cells. This molecule is made of a nitrogen base (adenine), a ribose sugar, and three phosphate groups. The word adenosine refers to the adenine plus the ribose sugar.
Explanation:
What holds amino acid chains within a protein in shape?
Answer:
Proteins are the end products of the decoding process that starts with the information in cellular DNA. As workhorses of the cell, proteins compose structural and motor elements in the cell, and they serve as the catalysts for virtually every biochemical reaction that occurs in living things. This incredible array of functions derives from a startlingly simple code that specifies a hugely diverse set of structures.
In fact, each gene in cellular DNA contains the code for a unique protein structure. Not only are these proteins assembled with different amino acid sequences, but they also are held together by different bonds and folded into a variety of three-dimensional structures. The folded shape, or conformation, depends directly on the linear amino acid sequence of the protein.
Explanation:
What happens to a substance when it is heated?
a
Thermal energy is decreased
b
Potential energy is increased
c
Kinetic energy is increased
d
It does not change its physical shape
Answer: C
Explanation:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster: the space between atoms increases: The motion and spacing of the particles determines the state of matter of the substance: The end result of increased molecular motion is that the object expands and takes up more space.
Need help with this
Answer:
Respiratory Sir
Explanation:
The mother has long fur:
(FF)
F= long fur
The father does not have long fur:
(ff)
f=short fur
Answer:
are you looking for a pedigree, or a square pedigree?
Explanation:
Light energy for the plant to use in making its food is trapped during ____ reactions.
a.
light-independent
c.
light-dependent
b.
glucose-dependent
d.
oxygen-dependent
Answer: c. light-dependent
Hope this helps!!! :)
Answer:
The answer is C. light-dependent
Explanation:
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