Answer:
The fast carbon cycle is largely the movement of carbon through life forms on Earth, or the biosphere. During photosynthesis, plants absorb carbon dioxide and sunlight to create fuel—glucose and other sugars—for building plant structures. This process forms the foundation of the fast (biological) carbon cycle.
HI PLEASE I WOULD BE HIGHLY APPRECATED IF YOU HELP ME ON THIS QUESTION
Answer:
I would say that the sea dried up because there are fish fossils.
Explanation:
Which is not an echinoderm?
A.)starfish
B.)sea urchin
C.)squid
D.)sand dollar
[tex] \large \color{red}Answer:[/tex]
Which is not an echinoderm?
A.)starfish
B.)sea urchin
C.)squidD.)sand dollar
[tex] \large \color{Blue}Explaination:[/tex]
Starfish, sea urchin and sand dollars are echinoderm.In a food chain 200 kg of wheat is fed on by 18 kg of mice which in turn are eaten by 1kg of hawk. What is the percentage energy transferred from the first trophic level to the third?
Answer:
0.1% of energy
Explanation:
Energy flow: From the whole quantity of energy that reaches the earth's surface, autotroph organisms or producers absorb only 0.1 or 1%.
From the input of solar energy begins a unidirectional energy flow through all the organisms in the ecosystem, from autotrophs to heterotrophs, until it is dissipated in the environment.
At each trophic level occurs an energy transfer to the next, with only 10% being usable in each of them. This assessment is called "The 10% rule". As a general rule, only about 10% of the energy stored as biomass at one trophic level, per unit time, ends up as biomass at the next trophic level, in the same unit of time.
If wheat transferred 10% of the energy to mice, and of that 10% mice transferred 10% of the energy to hawk, then the percentage of energy transferred from the first trophic level to the third equals 0.1%.
10% (1st TL-2nd TL) / 10% (2nd TL - 3rd TL) = 0.1% (1stTL - 3rd TL)
TL = Trophic level
what can exponential growth happen
In exponential growth, a population's per capita (per individual) growth rate stays the same regardless of population size, making the population grow faster and faster as it gets larger. In nature, populations may grow exponentially for some period, but they will ultimately be limited by resource availability.
2. How does the increase in the level of testosterone affect the production of GnRH, FSH and LH?
The increase in testosterone stimulates the production of GnRH, FSH, and LH
b. The increase in testosterone prevents further production of GnRH, FSH and LH
The increase in testosterone stimulates the production of GnRH and FSH but prevents the
production of LH
d. The incrcasc in testosterone stimulates the production of GnRH and LH but prevents the production
of FSH
Answer:
The correct answer is - option B. The increase in testosterone prevents further production of GnRH, FSH, and LH
Explanation:
The high level of testosterone hormone produced by the testes shows a negative feedback system in males as an increase in this hormone leads to the inhibition of the GnRH from the hypothalamus and which in turn inhibits the production of the fH and FSH from the pituiyary gland.
This process in a negative feedback system which prevents the production of hormone by released by the same hormone. It leads to slow spermatogenesis
Felicity lists the factors that affect the shape of Florida.
Answer:
The felicity list the factors that the Humidity, Temperature, Rainfall. Explanation: In general, the "electron pairs in a molecule" which will have a shape to "maximize their distance" far apart, even the charges repel each other and also unlike charges attract.
How is kingdom Plantae different from kingdom Archaebacteria and Eubacteria?
Answer:
Plantae is multicellular while eubacteria and archaebacteria are unicellular.
What is cyclone??
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Answer:
hi pari
Explanation:
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When the spectrograms were revealed, did you have to change the grouping of any of the finches? Which characteristic did you find it easier to sort by, song or spectrogram?
The spectrogram is easier to sort because you have a visual aid displaying the sound wave .
What is spectrogram ?
"Finches discriminate between members of their own species and those of a closely related species based on song and appearance. A spectrogram is a visual representation of how sound frequencies change over time".
What is soundwave ?
"A sound wave is the pattern of disturbance caused by the energy travelling away from the source of the sound".
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Examine the model presented here. Evaluate the size and structures associated with this cell. Which statements are accurate in their
description based on the cell type shown here? Select ALL that apply.
A)The cell lacks a nuclear membrane.
B)The cell lacks ribosomes and is likely eukaryotic.
C)The cell contains flagella and is likely eukaryotic.
D)The cell lacks mitochondria and is likely prokaryotic.
E)This is a prokaryotic cell because there are few internal cell structures.
Cells Functions and Structures
Answer:
The correct answer is - A, D, and E.
Explanation:
The following model is a model of a prokaryotic cell. It can be identified with the characteristic features of the cell and the cellular components present in this particular cell.
In this model, no nuclear envelope or membrane is present and it is present in the eukaryotes not in the prokaryotes, similarly, the other double membrane-bound organelles such as mitochondria not present in the prokaryotes.
Consider a habitat with prairie dogs, bison, and red-tailed hawks. Another
species of hawk that eats prairie dogs, the ferruginous hawk, migrates into
the area. What effect will this change most likely have on the prairie dog and
red-tailed hawk populations?
O A. The prairie dog population will decrease, the red-tailed hawk
population will stay the same, and the bison population will
increase.
B. The prairie dog population will decrease, the red-tailed hawk
population will decrease, and the bison population will increase.
C. The prairie dog population will decrease, the red-tailed hawk
population will stay the same, and the bison population will stay
the same
O D. The prairie dog population will decrease, the red-tailed hawk
population will decrease, and the bison population will stay the
same.
Answer:
B. The prairie dog population will decrease, the red-tailed hawk population will decrease, and the bison population will increase.
Explanation:
I'm not given context; however, I am assuming that the prairie dog preys on the bison because the bison is commonly known as a herbivore.
If another predator who preys on the prairie dog is introduced, there is increased competition with the red-tailed hawks. Although this doesn't directly impact the population of red-tailed hawks, it reduces its food supply (of the prairie dog) because it is being shared, so it will have less food to grow at the optimal level.
With the increased consumption of the prairie dog, naturally, that would leave its prey; the bison, to have a lower level of predation, thereby the population increasing.
The X axis on a Speed Graph is always
a jet flies 3600 km in 6 hours. What would the average speed be of the plane in kilometers per hour?
Answer:
600km/hr
Explanation:
Average speed = total distance/total time
3600/6 =
600
which of the following astronomical bodies is the highest in hierarchy
Answer:
the Galaxy
Explanation:
The astronomical body which is the highest in hierarchical order is the Galaxy.
Using the illustration above, why are the chromosomes in two of the sex cells different from the chromosomes in the parent cell?
A
the chromosomes from another parent cell were introduced
B
crossing over occurred in the chromosome
C
an insertion mutation occurred during replication
D
some of the genes were damaged during replication
Answer: A the chromosomes from another parent cell were introduced
Explanation: A child is created when the male sex cell joins the female cell. If the male and female sex cells had the standard number of chromosomes, as is found in body cells then the zygote (baby) would have double that number of chromosomes. The number of chromosomes would keep doubling every generation. To avoid this doubling the parent's body cells split by miosis which halves the number of chromosomes and so when the sex cells join the total number of chromosomes is the same as that found in the parent's body cells.
Which characteristic is most useful in correlating Devonian-age sedimentary bedrock in New York State with Devonian-age sedimentary bedrock in other parts of the world?
Complete question:
Which characteristic is most useful in correlating Devonian-age sedimentary bedrock in New York State with Devonian-age sedimentary bedrock in other parts of the world?
a. Color
b. Index fossils
c. Rock types
d. Particle size
Answer:
b. Index fossils
Explanation:
Fossils are animal and vegetable rests found in different strata of sedimentary rocks. Sedimentary layers deposit chronologically, so they are used to reflect history. They keep in each layer some of the forms of life that inhabited that area in the past. These fossils turn to be very useful while dating ages. The term Index fossils refer to those fossils that only existed in a given era or geological period during evolution.
Index fossils must:
Be easily recognizable and distinguishable from all the other fossilsHave lived in a relatively short geological periodPresent a wide geographic distributionHave lived in different sedimentary basinsAppear in different types of rocksBe abundantIn the exposed example, we are looking for a correlation between the Devonian-age sedimentary rock layers from New York with the Devonian layers of other parts of the world. This comparison is the same period (Devonian) and in places that might be far away from each other, meaning there was a wide geographical distribution of the species.
A quick evolution and extinction contribute to narrow the geological period of their existence, increasing the chronological precision. Widely distributed fossils allow geologists to establish relationships between rocks that are far away from each other.
the differences in the life cycle of a normal cell
compared to the life cycle of a
cancer cell
A change in the sequence of nitrogen
bases in a gene is called a(n)
Answer:
mutation
Explanation:
A mutation is a change that occurs in copying a DNA sequence where the order of the proteins could be altered.
Response to stress or danger that increases the heart rate and blood pressure, preparing the body to fight or flee: __________________________
2. The ‘feel-good’ hormones such as serotonin so you feel less pain: ___________________
3. Controls how much sugar is in the blood maintains balance to prevent diabetes: ____________
4. What time you go to sleep and when you usually wake up in the morning: __________________
Answer:
Response to stress or danger that increases the heart rate and blood pressure, preparing the body to fight or flee: Adrenaline
The ‘feel-good’ hormones such as serotonin so you feel less pain: dopamine
Controls how much sugar is in the blood maintains balance to prevent diabetes: Insuline
What time you go to sleep and when you usually wake up in the morning: Melatonin
Which of the following best describes Pangaea?
A) The seven continents that we know now
B) An area on Earth that contains a ring of volcanoes
C) A giant landmass that existed over 250 million years ago.
D) The process by which plates move
Answer:
c
Explanation:
Each cell of the muscles of a certain bug contains 28 chromosomes.
a. How many chromosomes are in its sperm cells?
Answer:
14 chromosomes
Explanation:
In the gametes of an organism, there are always half of how many chromosomes there are in the somatic cells of the organism. For example, if there are 4 chromosomes in the somatic cells, that means that there are 2 chromosomes in the gametes.
Somatic cells are body cells. They include everything from skin cells to brain cells to stomach cells.
Gametes are reproductive cells. They're the sperm and egg cells.
So if the muscle cells have 28 chromosomes, that means all somatic (or body) cells of that organism have 28 chromosomes.
So the gametes would have half of that amount:
28/2 = 14
So the sperm cells of this organism would have 14 chromosomes.
What is the force of a 3kg skateboard accelerating at a rate if 4m/s²? Plug the numbers into the formula
Answer:
[tex]\boxed {\boxed {\sf 12 \ Newtons }}[/tex]
Explanation:
Force is the product of mass and acceleration.
[tex]F=ma[/tex]
The mass is 3 kilograms and the acceleration is 4 meters per square second.
[tex]m= 3 \ kg \\a= 4 \ m/s^2[/tex]
Substitute the values into the formula.
[tex]F= 3 \ kg * 4 \ m/s^2[/tex]
Multiply.
[tex]F= 12 \ kg*m/s^2[/tex]
1 kilogram meter per square second is equal to 1 Newton. Our answer of 12 kg*m/s² is equal to 12 N[tex]F= 12 \ N[/tex]
The force of the skateboard is 12 Newtons.
Ribosomes, Nucleus, Chloroplast and cell membrane are all examples of_____
O Organ systems
O Organelles
O Tissues
O Unicellular organisms
i need to persuade someone to live in a chaparral
Answer:
Just make them. That usually works. Or kidnapping. That also works
Explanation:
In the moth species, some moths have larger spots than others. This is an example of
O mutations
O genetic variation
O commensalism
O uniformitarianism
The picture below is the subunit of a nucleic acid. This monomer is called a____________________.
Group of answer choices
nucleotide
monosacharide
amino acid
fatty acid
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Which fossil fuel is extracted from the lithosphere by mining?
A. Petroleum
B. Oil
C. Coal
D. Natural Gas
Answer:
Explanation:
Carvão espero ter ajudado
3b. Use an arrow to show the path that takes water through a plant. Include and label all
specific plant structures that are involved. (4 points) You will not be able to label this, so explain
to me what happens and where.
Answer:
Roots---xylem vessel-- upper parts of plant.
Explanation:
The plant absorb water from hairs present on the roots and taken this water to the xylem vessel that is responsible for transporting water to all parts of the plant body. Water enters in the root through a process is called osmosis until it reached to the xylem vessel. Osmosis is a movement of molecules through a semi-permeable membrane into a region of higher solute concentration in order to equalize the solute concentration.
1 point
2. A researcher adds an enzyme to a sample of human DNA to see if the
DNA changes. Which result would best support the conclusion that the
enzyme had no effect on the DNA?
The DNA has uracil bases.
The DNA has unpaired nitrogenous bases.
The DNA has a single strand with nucleotides and a sugar-phosphate backbone.
The DNA has a double helix shape with nucleotide pairs and sugar-phosphate
backbones.
Answer:
has a single strand with nucleotide and a sugar phosphate backbone
Answer:
hi
i'm not really sure but i think its the second option
Explanation:
enzymes when they are active usually hydrolyzes things
so in the second one we read that we can see unpaired nitrogenous bases
these bases are:
adenin timin citosin goanin
those are for DNA . in RNA timin is changed with uracil
so these means the hydrogen bond between them are hydrolyzed by enzyme
so we see the effect of enzyme on DNA
ANSWER QUICKLY!!! What phase of mitosis is shown in the picture above?
A. Metaphase
B. Anaphase
C. Telephase
D. Prophase
Answer:
B. Anaphase
Explanation:
The stage of meiotic or mitotic cell division in which the chromosomes move away from one another to opposite poles of the spindle.
The phase of mitosis which is shown below in the picture is Anaphase. During this phase, chromosomes break at centromeres.
What do you mean by Mitosis?Mitosis may be defined as a process where a single cell divides into two identical daughter cells.
Anaphase is the phase of mitotic cell division where chromosomes break into chromatids that are separate from each other and are pulled towards the opposite pole with the help of spindle fiber.
Therefore, the phase of mitosis which is shown below in the picture is Anaphase.
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