what are the two main categories of an ecosystem 5th grade
A group of students studied four different cell specimens under a microscope and recorded information about each cell
in this table.
Characteristics of Four Cell Specimens
Cell Membrane
Chloroplasts
Yes
Yes
Cell Specimen Cell Wall
Cell 1
Yes
Cell 2
No
Cell 3
Yes
Cell 4
No
DNA in Nucleus
Yes
Yes
Yes
No
Yes
No
No
Yes
-
Yes
Which cell specimen is a prokaryote?
A Cell 1
B Cell 2
C Cell 3
Answer:
Cell 3
Explanation:
One of the unique main characteristics that differentiates a prokaryote from a eukaryote is the absence of presence of nucleus in their cell, and where their DNA is found.
In prokaryotic cells, nucleus is absence. The DNA of prokaryote is not found in a nucleus, rather, it is contained in a region referred to as nucleoid.
Therefore, the specimen that does not have DNA in nucleus is definitely a prokaryote.
Cell 3 is a prokaryote.
What are the causes of inherited genetic variation
Answer:
Genetic variation can be caused by mutation which can create entirely new alleles in a population, random mating, random fertilization, and recombination between homologous chromosomes during meiosis which reshuffles alleles within an organism's offspring.
Explanation:
hope this helps!!
Answer:
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Which of the following elements are commonly found as part of biological macromolecules?
Answer:
Biological macromolecules are organic, meaning they contain carbon. In addition, they may contain hydrogen, oxygen, nitrogen, and additional minor elements.
Explanation:
A in Bio last year.
Question 28
A person who has PKU, a recessive genetic disorder,
А
inherited the allele for the trait from one parent.
B
inherited the allele for the trait from both parents.
С
is heterozygous for the trait.
ОО
D
will not pass the allele for the trait to his or her offspring.
Answer:
B
Explanation:
In order for one to have a recessive trait, both parents must carry the trait.
XX Xy= XX XX Xy Xy
Xy Xy= XX Xy Xy YY
XX XX= XX XX XX XX
yy yy= yy yy yy yy
Only the options in which both parents have the allele can pass it on. Only if there is no dominant allele will the trait be expressed, which can only be a yy recessive (since heterozygous would be dominant). Therefore, he will pass the allele on to his/her offspring.
Which is NOT part of hemostasis?
Question 1 options:
Coagulation (blood clotting)
Vascular spasms
Platelet plug formation
Conversion of fibrin to fibrinogen
Question 2 (0.5 points)
A patient with type A blood is accidentally given a transfusion with type B blood. Answer the following questions. How will this affect the patient?
Question 2 options:
It will strengthen the patients immune system.
It will cause severe illness or death.
The patient will now have type AB blood.
The patient will now have type B blood instead of type A blood.
Question 3 (0.5 points)
A hematocrit of 45% would indicate
Question 3 options:
anemia.
45% red blood cells.
45% plasma.
polycythemia.
Question 4 (0.5 points)
Which white blood cell functions to kill parasitic worms and play a role in allergy attacks
Question 4 options:
monocytes
eosinophils
basophils
lymphocytes
Question 5 (0.5 points)
A patient with type A blood is accidentally given a transfusion with type B blood. Answer the following questions. What antibodies does the patient with type A blood produce?
Question 5 options:
anti-A
The patient with type A blood would not produce antibodies.
anti-O
anti-B
Answer:
Explanation:
1. Conversion of fibrin to fibrinogin
2. It will cause severe illness or death
3. Polycythemia
4. Eosonophils
5.anti b
What is the primary purpose of the mitochondria in a cell?
A. They store genetic information
B. They convert glucose into ATP energy the cell can use
C. They trap sunlight and use the energy to make food
D. They ship proteins across the cell membrane
Answer:
convert glucose into ATP energy the cell can use.
Explanation:
you may have heard the phrase “mitochondria are the powerhouse of the cell” before, and it’s because they create energy for the cell
Which of the following parts of a plant is (are) not digestible by humans?
Explanation:
Your body is unable to digest cellulose and, as a result, it passes through your digestive tract unchanged and is eliminated in bowel movements. Bran, legumes, nuts, root vegetables and apples are particularly high in cellulose and hemi-cellulose
If you needed to sterilize a mattress, which of the following would be most useful?
Question options:
membrane filtration
phenolics
incineration
UV radiation
carbon dioxide (scCO2)
Answer:
d
Explanation:
you are testing a new blood glucose monitor. every sample that you take gets a reading of 80. which of the following terms best describes the monitors readings?
Answer:
the monitor is reliable but there is not enough info. to comment on validity
Explanation:
The monitor is consistent - which is reliability, but you can't be sure the results it is returning are correct based on the question, so validity can't be determined.
Compare and Contrast the simple electric motor and the generator using a vent diagram below
Answer:
compare
Explanation:
homie we can’t see the vent diagram because there is no pic
When a doctor needs to give someone a medication intravenously (through a vein), they dilute that medicine in a saline solution (salty water). Why would it be a bad idea for a doctor to mix the medicine with plain water? (Hint: Osmosis is the answer, but you’ll need to explain why.)
Answer:
it is because the blood cells will have too much water in them and they will burst.
Explanation:
there will be less salt inside the cells so all the water will enter the cells. if there is also salt present outside of the cell then the water and the electrolites(salt) will equalize between the inside and the outside of the cell.
Which refers to the ends of a magnet where the forces are stongest?
a. attracting Forces
b. opposing forces
c. magnetic fields
d. magnetic poles
Answer:
d. magnetic poles
Explanation:
The correct answer is option (d) magnetic poles.
What are magnetic poles?
A magnetic pole is a point at end of a magnetic field where the magnetic force is concentrated and strongest.
Why other options are incorrect?
a. Attracting Forces : The force by which one object attracts another are attractive forces
Hence a. is incorrect.
b. Opposing forces : There is nothing termed as opposing forces in the types of forces so this option is incorrect.
c. Magnetic fields : The area around a magnet, magnetic object, or an electric charge in which magnetic force is exerted.
So , this option is also incorrect
Hence Option D is correct
Learn more About magnets below
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What are the products and reactants of cellular respiration?
What happens during the prophase
the answer is chromosomes become visible the nucleus disappears, the mitotic spindle forms. and the nuclear envelope disappears
Explanation:
I just answered this question for another girl
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What is the main component of red blood cells that carries oxygen?
a. carbon dioxide
b. hemoglobin
c. water
d. salt
Answer: Your answer is B. Hemoglobin
Explanation: Red blood cells are capable of creating a rather unique protein called hemoglobin that carries oxygen to the lungs, and carbon dioxide out of the lungs!
Hope this helps, if not, comment down below!!!
A nickle would have a mass closest to?
Answer:
A nickel would have a mass closest to an atom
Explanation:
A nickels mass is 58.6934 which is the same atomic mass as atom
Enzymes speed up and direct chemical reactions.
True
False
Enzymes speed up and direct chemical reactions. TRUE
Enzymes are proteins that act as biological catalysts by way of accelerating chemical reactions. The molecules upon which enzymes may also act are called substrates, and the enzyme converts the substrates into specific molecules called merchandise.
Enzymes carry out the essential venture of lowering a reaction's activation electricity—this is, the amount of energy that has to be installed for the response to begin. Enzymes paintings by using binding to reactant molecules and maintaining them in such a manner that the chemical bond-breaking and bond-forming approaches take place more effortlessly.
An enzyme is a biological catalyst and is almost usually a protein. It hastens the fee of a specific chemical response inside the cell. The enzyme is not destroyed at some point in the reaction and is used time and again.
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What cell makes up loose connective tissue?
Answer:
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Answer:
collagen and elastic fibres.
Explanation:
fibers and other components of the connective tissue matrix are secreted by fibroblasts
what is it called when Energy is required to move materials across the cell membrane because they are moving from an area of low concentration to an area of high concentration?
Which body system has a function most similar to the role lysosome plays for a cell
Answer:
the excretory system
What are characteristics used to describe matter
Answer:
Physical properties are characteristics that describe matter as it exists. Some of many physical characteristics of matter are shape, color, size, and temperature. An important physical property is the phase (or state) of matter. The three fundamental phases of matter are solid, liquid, and gas
Explanation:
America in the 1920s
If the Eighteenth Amendment made the sale, manufacture, and transportation of alcohol illegal, what was the
Volstead Act for?
Choose 1 answer:
The Eighteenth Amendment empowered Congress to enforce the Amendment through legislation;
the Volstead Act enumerated the ways in which Prohibition would actually be carried out.
The Volstead Act protected select businesses who bought a liquor license before 1919. to
manufacture, sell and transport liquor.
The Volstead Act was the law that repealed the Eighteenth Amendment, making alcohol legal to
produce, sell, and transport once again.
Answer:
The Eighteenth Amendment empowered Congress to enforce the Amendment through legislation;
Explanation:
The Eighteenth Amendment empowered Congress to enforce the Amendment through legislation;
Answer:
The Eighteenth Amendment empowered Congress to enforce the Amendment through legislation; the Volstead Act enumerated the ways in which Prohibition would actually be carried out.
Explanation:
The Volstead Act banned the manufacture and sale of alcoholic beverages.
How is mutation different from adaptation?
Answer:
It can be a genetic mutation or it can be a change in a strategy. ... In this definition a mutation is any evident change (regardless of its effect on success), and adaptation is a change that made the group thrive in a given circumstance or environment.
Explanation:
Answer:
mutation can be a change in strategy and adaption is a change that made the group thrive in a given circumstance or environment.
Choose the letter that indicates the organelle that contains most of a cell's DNA. An animal cell with definite structures labeled from A to E. The vesicles with solid particles inside are labeled A.
The vesicles with no solid matter inside are labeled B.
The large membrane-bound organelle is labeled C. It is located in the center of the cell and contains a mass of densely stained granules and fibers.
The structure labeled D consists of flattened membranous-like stacks.
The tiny dots labeled E are located everywhere in the cell and do not have any membrane.
Answer:
C.
Explanation:
A cell is composed of specific structures that perform specialized functions called ORGANELLES. Among these organelles, an important one exists called NUCLEUS, which is responsible for all other cellular functions as it directs them.
The NUCLEUS is located centrally in the cell and is found as a membrane-bounded organelle in cells that possess it (eukaryotes). The NUCLEUS, which is described in this question with the letter "C" contains most of a cell's genetic material called DNA.
If blood flow through the afferent arterioles increases:
a. the smooth muscle in the vessel walls stretches to accommodate.
b. the increased flow and the stretch stimulates further relaxation of the arteriolar wall, lessening blood pressure.
c. the stretch stimulates further relaxation of the arteriolar wall, lessening blood pressure.
d. stretch stimulates vasoconstriction to reduce the flow.
e. the smooth muscle in the vessel walls stretches to accommodate the increased flow.
Answer:
d. stretch stimulates vasoconstriction to reduce the flow.
Explanation:
Afferent arterioles are a network of blood vessels that supplies the kidneys with blood. They branch from the renal artery and are important in blood regulation.
Myogenic mechanism is used to regulate blood flow to the kidney.
When blood flow increases to the afferent aterioles the smooth muscles its wall stretches and contracts to resist the pressure. This reduces blood pressure.
When the pressure reduces the smooth muscles relax to allow more flow of blood.
Fill in the blanks to complete the passage.
Geologists can use
waves to learn about Earth’s interior. P waves travel faster than S waves. S waves travel through solids only, which tells geologists that the
core is liquid.
Geologists call the outer, solid area of Earth the crust; the next layer is the
. Finally, at the very center, is the core.
Answer:
the correct answers are
Geologists can use
seismic
waves to learn about Earth’s interior. P waves travel faster than S waves. S waves travel through solids only, which tells geologists that the
outer
core is liquid.
Geologists call the outer, solid area of Earth the crust; the next layer is the
mantle
. Finally, at the very center, is the core.
Explanation:
answers are underlined
mark me brainliest pls
Answer:
seismic
outer
mantle
In that order.
Explanation:
A forest was completely destroyed by a volcanic eruption. All living organisms were killed. Then, due to the arrival of propagules carried by birds from nearby areas, certain plant species started growing in the forest. These species have started colonizing the forest because they could survive the harsh conditions of the forest. They also facilitated the growth of other species. What stage of succession is taking place in the forest?
Answer:
a
Explanation:
competition
Answer:
Ecesis
Explanation:
I got 5/5 and answered that on plato
Was Minato's last name Senju? It was never revealed in the show. Maybe it was in the comics?
Answer:
it was minato namikaze fatther of naruto and husband of the red hared woman and yes it was revealed in the show
Explanation:
BUKU DL
The illustration below shows translation in progress. The orange structure represents a ribosome and the dark grey ones labelled A and
B represent 2 tRNA. Fill in the blanks in the next sentence and answer the short essay question that follows.
A
5'-AGGGACUAUGAACAUUUACCAACUACGGUGGCGUUAGAC-3'
The final protein will contain
and carries the amino acid
d
tRNA B has the anticodon
amino acids.
Second Letter
PUCU
UAU
UUN
UUUC
UUA
UU
US
UCA
UGG
Shop
Low
CUC
La Coc
ACU
ACC
ACA
ACC
AUC
AUA
AUG
Ly
Explanation:
The illustration below shows translation in progress. The orange structure represents a ribosome and the dark grey ones labelled A and
B represent 2 tRNA. Fill in the blanks in the next sentence and answer the short essay question that follows.
A
5'-AGGGACUAUGAACAUUUACCAACUACGGUGGCGUUAGAC