Answer:
Here is the link to answer
Explanation:
bit. ly/3a8Nt8n
HELP STAT!!!!!!!!!!!!
Answer:
B
Explanation:
QUESTION 17
20. Which of the following is not a protein involved in muscle function?
Catt
troponin
myosin
tropomyosin
actin
QUESTION 18
The 4 proteins that are involved in muscle contraction are:
Thick filaments contain myosin, thin filaments contain actin , troponin and tropomyosin.
Hence, the answer is "Catt."
Which of the following is necessary for a geothermal plant to function?
Your answer:
biomass
fossil fuels
heated rock
hydrogen
sunlight
Answer:
Geothermal power plants use hot water to generate steam to turn a turbine for electricity generation. Since the heat of the water is the essential component of a geothermal power plant, these active systems are typically located where hydrothermal reservoirs exist.
Complete the following sentence.
The animal (_____) industry provides nearly 2 million American jobs.
Answer:
livestock
Explanation:
Answer:
agriculture
Explanation:
Edge Animal systems
A hypotonic solution has a lower concentration of solutes than a blood cell. Explain what
happens when a blood cell is placed in a hypotonic solution.
The blood cell swells with water there by bursting.
Which of the following is an advantage of sexual reproduction over asexual reproduction?
Answer:
1. Leads to mixing of genetic materials hence variation within species
2. Leads to offspring with hybrid viguor that tend to show high and adaptability to environmental conditions.
3. Variations due to sexual reproduction leads to improvement of species hence evolutionary changes that may bring about specialisation
#deadlywanderi
.
.
Describe mass of an object
Answer:
MARK AS THE PLSSS AND YOUR WELCOME
Earthworms help farmers. Many farmers add them to their farmland because they help form rich soil to grow crops in.
Earthworms mix different layers of soil together by carrying humus from the surface down into the subsoil. Humus is a dark-colored substance made up of a variety of materials. Which two of the following are found in humus? NO LINKS OR WILL BE REPORTED ⚠
Answer:
I think it's A and D
Explanation:
I hope this is right ;)
What is a molecular clock?
Select one:
ill give 30 points!
The idea that some sections of DNA can accumulate mutations fast while other parts accumulate mutations more slowly.
The idea that some sections of DNA are resistant to mutations and do not have them.
The idea that DNA evidence can be used to support evolution.
The idea that a section of DNA accumulates mutations at a constant rate over time.
Answer:
pretty sure its c (the thrid one)
Explanation:
Question 11 (1 point) What prevents backflow of urine into the kidneys? O
the internal urethral sphincter
the angle of the ureter
the external urethral sphincter
the mitral valve
Answer:
There is an internal urethral sphincter at the meeting point between each ureter and the bladder to prevent the backflow of urine into the kidneys.
Explanation:
Answer: the angle of the ureter
Explanation: I took the test
HELP ASAP HELP.......
Answer:
energy must equal out
Explanation:
obvious
Ty
N
Тір
- According to Figure 13-3, which code specifies the same amino acid as UAU?
Codons Found in Messenger RNA
Second Base
U с A
Phe Sor Тут Cysu
Phe Ser
Cyc
U
Lou Ser Stop
Stop A
Lou Sor Stop
G
Lou Pro His Arg U
Lou Pro His Arg
С
Lou Pro Gin
Arg
Lou
Pro Gin Ang
Thi Asn so U
А
The
Asn Bor
Bo Thr Lyo Arg A
Met Thr
Lyo
Arg
Val Ala Asp GyU
Ve Ala Aap GM С
G
Vol Als Glu ау A
Als
G
First Base
Third Base
le
Val
GY
Figure 13-3
OUAC
UAA
OUGC
UGU
Answer:
what do you need help on what you need help
Pine
Trees
Shrubs
Mass of Plants
The graph to the left
illustrates the mass of
different types of plants
during succession. Which of
the following best describes
what occurs to the amount
of
grasses in the graph?
Oak
Trees
Grasses
Mosses
Time
It decreases continuously.
It increases continuously.
It increases for a while and then decreases.
It does not change.
Answer:
it increases for a while and then decreases
name the group of algae most closely related to plants
Answer:
because it is a living thing.
and plants are living organisms?
I NEED HELP! PLEASE ASAP
Answer:glucose
Explanation:
Explain why all types of evidence can be useful in court.
Answer:
Well
Explanation:
Because, it'll bring them closer into solving the case.
Some students looked at pond water with a microscope. They saw prokaryotic and eukaryotic
organisms. The diagram shows one of the many organisms they saw.
Which best explains what type of organism this is? LT
(2 Points)
Answer:
C. Eukaryotic because it has a nucleus
Explanation:
All living organism have been classified into a wide category called DOMAIN, which consists of Eukarya, Prokarya, and Archaea. Living organisms are classified into each of these domains mostly based on whether or not they possess NUCLEUS in their cells.
Domain Eukarya known as Eukaryotes are made up of organisms that possess a membrane-bound NUCLEUS in their cell. According to this question, some students looked at pond water with a microscope and saw both prokaryotic and eukaryotic organisms. The organism displayed in the attached image is EUKARYOTIC simply because it has a NUCLEUS.
Stephanie is listening to the news and hears that Earth has recently experienced an increase in
radiation from the Sun. She might reasonably conclude that what occurred recently on the Sun to
result in this increase in radiation?
1. A slowing of the Sun's rotation
2. An increase in the Sun's mass
3. An increase is solar flares
4. A reduction in convection on the Sun
I’ll mark brainlist
Answer:
Opinions
Explanation:
Hope this helps
4. How should the fossils in the sediment layers of Earth appear if species have evolved over time?
A. All of the layers should contain fossils of simple organisms.
B. All of the layers should contain fossils of complex organisms.
C. The lower layers should contain fossils of more complex organisms.
D. The upper layers should contain fossils of more complex organisms.
Answer:
D the upper layers
Explanation:
at first, lifeforms were simple. they got more complex for a variety of reasons, including to adapt to the changing earth. simple organisms will be lower down for that reason.
The lower layers should contain fossils of more complex organisms. So, the correct option is (C).
What are Fossils?A fossil is defined as the preserved remains, imprint or trace of something that once lived from a previous geological era. Examples of fossils are bones, shells, exoskeletons, fossilized traces of animals or microbes, objects preserved in amber, hair, petrified wood, and DNA residues. The totality of fossils is known as the fossil record.
There are four main types of fossils which are formed in different way are conducive to preserving different types of organisms. Fossils are mold fossils, cast fossils, trace fossils and true form fossils.
Fossil layers are fossils that formed in sedimentary rock that formed in layers by depositing and pressing sediments on top of each other.
Thus, the lower layers should contain fossils of more complex organisms. So, the correct option is (C).
Learn more about Fossils, here:
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What is this insect? 20 points to anyone who can answer! (Will give brainliest to the person who ends up answering correctly)
Found it on mattress of carpeted bedroom
Answer:
It must be a beetle.
Be careful, because Bed bugs are considered to be dangerous; however, an allergic reaction to several bites may need medical attention.
You are trying to purify a protein that is soluble in a solution of 2 M ammonium sulfate. After centrifugation to remove other proteins that have precipitated at this high salt concentration, you recover the supernatant to assay the target protein's activity in a cell culture system.
(a) Explain why the cell dies when incubated with the supernatant.
(b) What procedure could you preform to correct the problem?
Answer:
a) The cell dies because it was in a hypertonic medium, and it loses water due to the difference in pressure and may even die from dehydration.
b) To correct this, the cells can first be placed in an isotonic solution (one that has the same concentration of solute as a solution separated or isolated by a semi-permeable barrier). A method to remove the salt is called dialysis.
Explanation:
A protein purification is a series of processes that allow the isolation of protein from mixture. Thereby this process is vital for the characterization of the function, structure and interactions of the protein of interest. It is therefore a very important procedure to perform correctly.
Ammonium sulfate is a salt whose chemical formula is (NH4)2SO4. The cells are in a 2M solution (2 moles of sulfuric acid per liter of solution). This is detrimental because the solution is hypertonic, it has a higher osmolarity in the external medium than inside the cell, so that a cell in such a solution loses water due to the pressure difference, i.e. osmotic pressure, and may even die from dehydration. The outflow of water from the cell continues until the osmotic pressure of the external medium and the cell are equal.
Centrifugation is a method by which solids can be separated from liquids of different density by means of a rotating force. After centrifugation, the supernatant will have a soluble part (proteins) and a pellet (cells and other insoluble parts). Thereby, the protein of interest would be recovered in the supernatant. But since the cell was not previously in a suitable medium, it could not carry out its metabolism and died and could not produce the protein of interest.
a) The cell dies because it was in a hypertonic medium, and it loses water due to the difference in pressure and may even die from dehydration.
b) To correct this, the cells can first be placed in an isotonic solution (one that has the same concentration of solute as a solution separated or isolated by a semi-permeable barrier). A method to remove the salt is called dialysis.
Dialysis is the process of separating molecules in a solution by the difference in their diffusion rates or osmotic pressure across a semipermeable membrane. A solution of various types of molecules is placed in a semi-permeable dialysis bag, such as, for example, on a cellulose membrane with pores, and the bag is sealed. The sealed bag is placed in a beaker with pure water or another solution. Molecules small enough to pass through the pores (often water, salts and other small molecules) tend to move in or out of the dialysis bag in the direction of the lower concentration. However, larger molecules (such as DNA, proteins or polysaccharides) that are larger than the pore diameter are retained within the dialysis bag.
. A researcher studies the evolutionary relationships between influenza viruses by comparing the genomic sequences of the viruses found in pigs, ducks, and humans in a given year. When evaluating the viruses that had infected these hosts the previous year, she identifies a cross-species transfer from humans to pigs. This information supports the hypothesis that cross-species transfer leads to more severe disease if during the previous year _______ suffered a severe influenza pandemic.
Answer:
pigs
Explanation:
Influenza is an infectious disease caused by influenza viruses, which can be divided into four types A, B, C and D. In humans, influenza A and B viruses are known to cause epidemics, while A viruses are known to cause pandemics. Influenza viruses are also found in birds and mammals (e.g., dogs, cats, cattle pigs and horses). Cross-species virus transmission refers to the transmission process of infectious viruses between hosts from different species. Several viruses that may cause severe diseases in humans have originated from animal species, e.g., avian influenza A virus that can be transmitted to humans through an intermediate host (e.g., pigs). Other examples of cross-species virus transmission include the Ebola virus and Hantaviruses. It has been suggested that cross-species transmission is a common phenomenon in rapidly evolving viruses.
1. Which of the following most accurately complete the statement below -
An increase in biodiversity result in
A. More competition for abiotic factors
B. Less competition for biotic factors
C. An increase in the sustainability of an ecosystem
D. A decrease in the sustainability of an ecosystem
Answer:
The correct answer is - C. An increase in the sustainability of an ecosystem.
Explanation:
Biodiversity is the variety of different biological species and populations on the earth or in an ecosystem. Biodiversity helps in maintaining health by providing food and other resources. Higher biodiversity healthier the earth.
Sustainability is the ability to maintain the ecological process and its structure and function in case of external stress for a longer time. The more sustainability of an ecosystem the healthier the ecosystem. The biodiversity of an ecosystem provides sustainability to the ecosystem. An increase in biodiversity will lead to a more sustainable ecosystem.
Describe the different types of traits that exist.What factors can affect these traits?
Answer:
Cardinal traits, central traits, and secondary traits.
Explanation:
There are three types of traits according to the Gordon Allport which organized traits into three levels that is cardinal traits, central traits, and secondary traits. Factors that affect these traits are the environmental factors as well as genetic factors. Some of these traits acquire by an individual through inheritance while on the other hand, other traits can get by the people through the exposure to environment that leads to the presence of that traits.
Which of the
following is the best
conclusion that can
be made from this
graph?
Answers are in pictures
Where are areas of high rainfall most likely to occur?
A. Above clockwise moving gyres
B. Above cold surface waters
C. Above counter-clockwise moving gyres
D. Above warm surface waters
The areas of high rainfall most likely to occur in " Above warm surface waters".
What is rainfall ?The moist air would be forced to ascend whenever it encounters obstacles like mountains as well as rises as a result. Then condensation happens, and it starts to rain. Orographic rain and relief rain are two names for this sort of precipitation.
There are generally three types of rainfall occur:
reliefconvectional.frontal.Therefore, the correct answer will be option (D).
To know more about rainfall
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PLEASE ANSWER ILL GIVE BRAINLIEST
Answer: letter C brainliest?
Explanation:
She is puzzled that the clone does not have an effect, even though she knows, based on available mutants, that loss of the function of this gene causes worms to die as larvae. You look at the sequence of the DNA she used to make the feeding clone and discover that it corresponds to an intron in the gene. What would you say to the student to explain why her experiment did not succeed
Hello. Your question is incomplete, which makes it difficult to answer, but we can consider that the girl's experiment went wrong because she used a DNA sequence that only corresponds to introns that are not capable of encoding amino acids. Therefore, you could explain to the girl that her experiment did not work, because the introns do not encode amino acids, which prevents the clones from developing proteins that are essential for their survival, since the amino acids are the protein-building molecules .
Introns are important for the control of gene expression, but they cannot encode any amino acid, without which the organism cannot survive.
Which of the following are shown in karyotypes?
a
sex chromosomes
b
homologous chromosomes
c
autosomes
d
all of the above
Answer:
Karyotypes describe the chromosome count of an organism and what these chromosomes look like under a light microscope. Attention is paid to their length, the position of the centromeres, banding pattern, any differences between the sex chromosomes, and any other physical characteristics.
Explanation:
As this karyotype displays, a diploid human cell contains 22 pairs of homologous chromosomes and 2 sex chromosomes. ... The maternal and paternal chromosomes in a homologous pair have the same genes at the same locus, but possibly different alleles.