What do cells contain?
Answer:
cells consists of cytoplasm enclosed within a membrane, which contains many biomolecules such as protiens and nucleic acids.
Higher energy contained in the sugar molecules produced by photosynthesis comes from
A. light
B. water molecules.
C. ΑΤΡ.
D. carbon dioxide molecules.
Answer:
A
Explanation:
light
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You and your friends go to the beach for vacation. You all walk down to the beach to go swimming. When you get there, you see the water is murky and green, and there are algae blooms floating on top. If it is excess nutrients which are feeding the algae blooms and lowering the oxygen content in the water, that process is called:_______.a. nutrient cycling.
b. nitrification.
c. eutrophication.
d. hypoxia.
Answer: The process is called EUTROPHICATION. The correct option is C.
Explanation:
Eutrophication is a type of environmental pollution where by there is an increase in nutrient salts of a water body which can lead to structural changes in the affected aquatic ecosystem. These changes includes:
--> Increase in production of algae: this effect causes algae blooms which makes the water murky, greenish and unpleasant for certain activities such as swimming.
--> Decrease in aquatic life: the presence of excessive growth of algae which are often degraded by microorganisms. When the rate of degradation of the algae by microorganisms is greater than that of oxygen regeneration a hypoxic state occurs which is harmful to aquatic life example fishes.
What is the optimal pH for Enzyme B?
Answer:
6,7.77.0
Please correct Ok ?
if a nutrient were in short supply in an ecosystem, how might it effect an organism
Answer:
Its leads to a deficiency
Explanation:
If a nutrient is in short supply in an ecosystem, it will lead to a deficiency of such nutrient in organisms that are in need of the nutrient.
Such a deficiency can lead to diseases in the ecosystem. If organisms that requires the nutrient cannot find an alternative, it will seriously affect their well being. Such deficiency often lead to very dire consequences for the balance of the ecosystem at large.please help me with this question:)
Answer:
animal cell........ hope it's will help u n please mark me as brainliest answer
Due in 1 minute please help
Answer
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What is the contour interval of this map?
Answer:bird creek
Explanation:
In the human body, sodium—a component of salt—balances fluids, such as water, in the body. Explain how the onion experiment showed this. 20 BRAINLY POINTS PLZ HELP
Answer:
The salt worked like sodium on the onion.
Explanation:
Plants and animal cells are examples of
cells
O prokaryotic cells
O eukaryotic cell
Answer:
eukaryatic which the RH whitthakar was divided PLANTAE and animalia kingdoms in eukaryotes
Genetic counselors work mostly with
1 school counselors.
2 researchers in genetic engineering.
3 elderly adults who live in care facilities.
4 couples who are planning to have children.
Answer: couples who are having children
Explanation:
I got it right on my quiz
If the atomic number of an element is 6 and its mass number is 13, how many neutrons
are
contained in the nucleus?
19
8
7
6
Answer:
There will be 7 neutrons in a carbon isotope with an atomic mass of 13.
Explanation:
The number of protons in the carbon isotope will be the same as the atomic number, 6, so if we need an atomic mass of 13 there will be 7 neutrons, as 6+7=13.
If the atomic number of an element is 6 and its mass number is 13, there will be 7 neutrons. Therefore, the correct statement is option C.
What is atomic number?Atomic number is the number of protons found in the nucleus of an atom of a specific chemical element. The atomic number is also equal to the number of electrons orbiting around the nucleus in a neutral atom.
Mass number is the total number of protons and neutrons found in the nucleus of an atom and is represented by the symbol A. The mass number is used to determine the atomic mass of the atom.
The atomic number of an element is the number of protons present in its nucleus, which is 6. The mass number of an element is the total number of protons and neutrons in its nucleus, which is 13. So, the number of neutrons in the nucleus can be calculated by subtraction of the atomic number from the mass number.
The formula is number of neutrons = Mass number - Atomic number.
Therefore, there are 7 neutrons in the nucleus of the given element.
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SOMEONE PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!
which enzyme attaches the ozaki fragments?
Answer:
DNA ligase,joins the okazaki fragments together into a single DNA molecule
Answer:
DNA ligase attaches the ozaki fragments.
Explanation:
In my thought it's the answer.
Which describes a altocumulus cloud?
a.
high, feathery cloud
c.
low storm cloud
b.
puffy mid-level cloud
d.
high cloud made of ice crystals
Please select the best answer from the choices provided
A
B
C
D
Answer:
B. Puffy mid-level cloud
The Ebola virus can often have symptoms similar to bacterial pneumonia, an infection of the lungs. These symptoms include chest pains, shortness of breath, and fever. Which statement best summarizes the differences between these two diseases? (SC.6.L.14.6)a.Viruses can replicate because they are living organisms, while bacteria cannot. b.Viruses are not living organisms, but bacteria are living. c.Viruses can be beneficial to live organisms but bacteria are often infectious. d.Viruses are living organisms, while bacteria are not.
Answer:
Eblow is a terrible thing.
Explanation:
Answer:
I think its, option b) Viruses are not living organisms, but bacteria are living.
Explanation:
The other options don't fit "summarize the differences b/w bacteria and virus", or simply don't make sense...
Bacteria can replicate as well, not only virus, so that cannot be a difference
The virus is often the one being more dangerous, there is something called "good bacteria"
A virus isn't living, (for the sake of this answer), and we all know for sure that bacteria is living
So, that's how option b is correct
I hope this helped you!!
PLEASE HELP ME WITH THIS QUESTION
Answer:golgi apparatus
Explanation:
ALOT OF POINTS
How do the sizes of sizes of lynx and hard affect each other?
Answer: When the population size of the hate increases there is more food for the links to eat. As a result the links population also increases. The large links population will kill more hairs so the hair population decreases this will also cause the hair population to decrease.
- Hope this Helps!
Alana wants to measure the speed at which drops of precipitation fall to the ground in Los Angeles.
Which statement identifies a way Alana uses technology to complete her experiment?
O She observes daily rainfall data from multiple weather stations throughout the city.
O She graphs the relationship between rainfall speed and time using graphing paper.
O She analyzes a map to determine different places to collect rainfall for the study,
O She estimates how fast rain falls by studying the sky at different locations in the city.
Answer:
She observes daily rainfall data from multiple weather stations throughout the city.
Explanation:
How are cancerous cells different from normal cells?
Answer:
Cancer cells differ from normal cells in many ways that allow them to grow out of control and become invasive. One important difference is that cancer cells are less specialized than normal cells. That is, whereas normal cells mature into very distinct cell types with specific functions, cancer cells do not.
Explanation:
Hope this helps ya!!
What type of cloud is Cloud A? What kind of weather might you expect when you see clouds of this type?
Answer:
Cloud A is a cumulus cloud. When these fluffy, white clouds are in the sky, you can expect fair weather.
Explanation:
help idk this answer
Answer:
d
Explanation:
Question 2 of 9
Corn seeds were germinated (grew and put out shoots after a period of dormancy) in a dark room
placed in the light, 75 of these seedlings turned green. Which conclusion about chlorophyll (the
plants can most reasonably be drawn from this information?
(1 point)
DA. Light is the only factor that controls the production of chlorophyll
.
B. Darkness is the only factor that prevents the production of chlorophyll.
IC Light and vitamins are necessary for chlorophyll production.
D. Light and some other factor are necessary for chlorophyll production.
----Page 2 of 9----
Answer:
The correct answer is option D. Light and some other factors are necessary for chlorophyll production
Explanation:
By this experiment, it is clear that light is the major factor that helps in the production of chlorophyll in seedlings or plants. In this study, placing the seeds in the light turns 75 seedlings green which is possible by the production of the green pigment, chlorophyll only. So, it is proved that light is a key factor in the production of chlorophyll.
Besides light, there must be some other factors (mineral nutrition and chemical metabolites) that also play role in the production of chlorophyll or increase or decrease of the chlorophyll production as few seedlings did not turn green in the study.
Which mutation below would result in the greatest amount of change in the proteins that code for a particular trait?
(Please help I will reward)
A. inserting three nucleotides
B. deleting three nucleotides
C. deleting one codon
D. deleting two nucleotides
Answer:
Mutations are errors in codons caused by changes in nucleotide bases. Some mutations may not have much effect. For example, if the codon GAA becomes the codon GAG, because the genetic code is degenerate, the codon will still code for the amino acid glutamate. Such ineffectual mutations are called silent mutations. Some mutations, however, can have a huge affect on coding for amino acids, which can in turn affect what proteins are produced, which can have a profound effect on cellular and organismal function.
The most important part of mitosis is to correctly divide the
Cell membrane
Cytoplasm
DNA
Organelles
Answer:
DNA
Explanation:
Which word defines the group of all penguins living together in one area?
A) habitat
B) population
C) species
D) community
Answer:
B) Population
For the last 30 years, human use of fertilizers has had a significant impact on the nitrogen
cycle. Which statement explains how fertilizers impact an ecosystem?
O Fertilizers increase the amount of fixed nitrogen available in the ecosystem.
O Fertilizers decrease the amount of nitrogen fixed by organisms living in the ecosystem.
O Fertilizers kill off important nitrogen fixing bacteria.
Fertilizers decrease the amount of fixed nitrogen available in the ecosystem.
Answer:
It's C
Explanation:
Hope this helped :)))
The fertilizers show a significant impact on the nitrogen cycle as the fertilizers kill off the important nitrogen fixing bacteria which are present in the soil. Thus, the correct option is C.
What is Nitrogen cycle?Nitrogen Cycle is a biogeochemical process through which the nitrogen present in the environment is converted into many different forms, consecutively passing from the atmosphere to the soil to the living organisms and back into the atmosphere after decomposition. It involves several processes including the nitrogen fixation, nitrification, denitrification, decay and putrefaction of the nitrogen compounds.
Intensive fertilization of the agricultural soils of normal soil can increase the rates at which nitrogen in the form of ammonia is volatilized in the environment and lost to the air. It can also speed the microbial breakdown of ammonium and nitrates in the soil which results into enhancing the release of nitrous oxide. In addition to this, excessive use of fertilizers also kills the nitrogen fixing bacteria present in the soil.
Therefore, the correct option is C.
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Please someone help me with my Biology questions. PLEASE
Answer:
I cant see the question
Explanation:
Rough ER is mostly responsible for
making -__-, whereas smooth ER is
mostly responsible for making
Explanation:
The rough ER, studded with millions of membrane bound ribosomes, is involved with the production, folding, quality control and despatch of some proteins. Smooth ER is largely associated with lipid (fat) manufacture and metabolism and steroid production hormone production.
2. Running water can be used as an energy
source to produce _____
power.
running water can be used as an energy source to produce hydroelectric power.