What are common hazards in risk assesment?
Please tell me how does water flow through sponges in order
Answer:
Small and tube shaped, water enters the sponge through dermal pores and flows into the atrium. Choanocyte flagella create the current to expel it through a single osculum. Note that water enters the sponge through a modified cell known as a porocyte.
Explanation:
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The _____ temperature and the _____ pressure on Earth's inner core force it to remain a solid. (4 points)
Answer: high and low
Explanation: high and low
Answer:
Low and high
Explanation:
A brown mouse is crossed with a heterozygous black mouse if the mother has a litter of four what are the chances of one of them being brown
Answer:
I used a Punnet Square to determine what percentage of 1 of the mice would be brown.
Explanation:
Q1: What two requirements must food meet in order to be considered a
food molecule
Answer:
it would be
Explanation:
i hope this helps
If a more concentrated initial solution of sodium bicarbonate was used in beaker C, would it require more or less bicarbonate to neutralize the acid? Why?
Answer:
It would require less bicarbonate to neutralize the acid.
Explanation:
Sodium bicarbonate NaHCO3 is a, partly soluble sodium salt that decomposes in water to form a weakly basic buffer solution. It dissociates in water resulting in bicarbonate anions HCO− , sodium ions Na+ and H+.
2 NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)
Buffer solutions exist in equilibrium. In a solution with a strong acid and the conjugate base react, while the other carbonate ions dissociate to form carbonic acid, shifting the equilibrium of the solution back towards a balanced state.
HA ⇄ H+ + A-
Due to its buffering ability i.e. how well it maintains equilibrium, less bicarbonate would need to be added later on to neutralize the acid.
Less quantity of bicarbonate is needed for the neutralization of acidic solution.
Function of bicarbonatesIt require less bicarbonate to neutralize the acid because of its concentrated solution. If a more concentrated solution of sodium bicarbonate is used to neutralize the acid, lower quantity of it will be enough to neutralize it. Sodium Bicarbonate acts as a buffer which is commonly used for maintaining the pH of the solution.
Effect of BufferIt acts as a base when it is put in the acidic solution so helps in neutralizing the solution so we can conclude that less quantity of bicarbonate is needed for the neutralization of acidic solution.
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A type of cell division that results in two daughter cells that are exactly the same as the original cell is _________.
A. osmosis
B. mitosis
C. diffusion
A plant has 3 parts, parallel veins, no main tap root, and the endosperm is separate.
Is this plant a monocot or a dicot?
What causes Seismic Waves?
-Release of energy along a fault
-Tsunami waves hitting the shore
-Seismograph Stations
-Hurricanes
Cells are usually very small. Why is it an advantage to have many small cells instead of one very large cell?
Select all that apply.
b
OOOO
Having a larger volume lets the organelles float around more.
The surface area of the cell determines how much material can be moved in and out.
The larger surface area prevents material from moving in and out of the cell.
It is important for cells to be able to move material in and out of the cell.
c
d
Answer:
C.
Explanation:
The diploid number of chromosomes in a species is always what
A diploid cell always contains two complete sets of chromosomes, which is described as 2n.
What is a diploid cell?Two complete sets of chromosomes are present in a diploid cell. The majority of human cells are diploid, with 23 chromosomal pairs totaling 46 chromosomes. This consists of a pair of sex chromosomes and 22 pairs of autosomes. The mother and father each contributed one copy of each pair of chromosomes to the individual.
Through the process of mitosis, diploid cells replicate and maintain the same number of chromosomes by making a copy of each chromosome and dividing their DNA equally among their daughter cells.
Blood cells, skin cells, and muscle cells are examples of diploid cells. These cells are called somatic cells. Different organisms have different numbers of chromosomes.
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What type of molecule "unzips" DNA to facilitate the process of replication? *
a nucleic acid
b lipid
c carbohydrate
d protein
Answer:
c
Explanation:
What is the stomie number of this atom?
A,b,c 8,13,9,5,4
Answer:
The atomic number is the number of protons (positive charge) in an atom.
Explanation:
I don't know the atomic number of your atom because it differs for all atomes, just count the number of positive charges and thats the answer. HOPE THIS HELPS!!!
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What would happen if complexes I-IV of the electron transport chain pumped protons in the opposite direction?
a. Too much ATP would be synthesized.
b. None of the other answer options is correct.
c. No ATP would be synthesized.
d. There would be too many electrons in the mitochondrial matrix.
Answer:
The correct answer is - c. No ATP would be synthesized.
Explanation:
In the electron transport chain there are four complexes, complexes I-IV, pumps the protons from the matrix of the mitochondria into the intermembrane space. This is the downhill movement of the electrons that helps in synthesizing the ATP molecules.
If the complexes move or pump the electron uphill or against the gradient there would be no ATP formation as there would be no interchange of proton and electron interchange.
Unscramble the word heenagwirt
Answer:
Weathering
Explanation:
You can use websites if it helps to
4. Which is a factor that keeps Earth in orbit around
the Sun?
A. the gravitational pull of the Sun
B. the orbital path of the moon
C. the continuous motion of the universe
D. Earth's changing speed and direction
Answer: A. the gravitational pull of the Sun
The sun is providing a centripetal force pulling the earth inward toward the sun. At the same time, the inertia of the earth is making it want to move forward in a straight line. The two forces work together to create the net effect of the earth orbiting around the sun. Other planets, moons, asteroids, and celestial objects exert gravitational forces on the earth as well, but nowhere near the amount of what the sun does.
In 3-4 sentences, please describe the importance of the diagram below. What is so significant when comparing the about the F1 and F2 generation?
10. Use the theory of evolution to explain the observation that there are no tuskless males in the
park. WHY do males retain their tusks, when 50% of females lost them.
Type Here
Based on the theory of evolution, poaching of males for their tusk exacted a pressure on the elephant population which made more tuskless males to survive more than males with tucks as a result of natural selection.
Also, tucklessness as a trait is sex-linked, this explains why 50% of females lost their tusks why the males retain theirs.
Recall:
The theory of evolution describes the change that occur overtime through natural selection, whereby, offspring that are "fitter" are reproduced.Those that lack the fitness to survive produce fewer offspring than will survive.Male elephants are known to have tusks. However, poaching of elephants with tusks have exacted the pressure of natural selection on the population of elephants in the park.
The few tuskless males that are left surviving therefore produce more offspring as they pass the gene of tucklessness to their offspring. Over a long time, more tuckless males emerge while males with tusks will become almost non-existence as a result of natural selection.
A study showed that most females elephants have no incisors which suggests that the trait for tucklessness is sex-linked. This explains why 50% of the females lost their tusks and males retain theirs.
In summary, based on the theory of evolution, poaching of males for their tusk exacted a pressure on the elephant population which made more tuskless males to survive more than males with tucks as a result of natural selection.
Also, tucklessness as a trait is sex-linked, this explains why 50% of females lost their tusks why the males retain theirs.
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5. Which of the descriptions below best describes photosynthesis?
a. CH20. + 60, - 600, + 6H2O
b. sunlight energy is stored in carbon-based molecules like glucose
c. an ATP-making process that occurs in mitochondria
d. chemical energy is released when glucose is broken down into
carbon dioxide
Answer:
i think d but not too sure.
Explanation:
I think it is either d or b but pretty sure d
The group of whales is an example of what
Answer:
of scariness
Explanation:
15. A man with normal color vision marries a woman with normal color
vision. BUT Mom's father was colorblind, and she is a carrier. If this couple
has a son, what is the chance he is colorbling?
*
0% of boys are colorblind
25% of boys are colorblind
50% of boys are colorblind
100% of boys are colorblind
Answer:
0%
Explanation:
Colorblind is usually a recessive trait therefore there is no situation, unless the father has a colorblind gene, that the child would be colorblind.
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From cells to major organ systems, the architecture of the body and the functions the body can perform are very closely related. Can you identify body cells, tissues, organs, systems that demonstrate this relationship and discuss its significance?
Explanation:
body cells- intake the nutrients and specialized into to carry function.
tissues- have similar structure to function well in body like, connective tissue, muscle
organs- carry different identity of function in body like, heart(to pump blood) kidney( for filter and excrete wastes
{ pls help me brainiest }
Which type of sensory receptors monitor position and movement of the body?
A. Photoreceptors
B. Chemoreceptors
C. Proprioceptors
D. Exteroceptors
Answer:
C. Proprioceptors
Explanation:
Firstly option A. Photoreceptors - Is responsible for our vision and is a subcategory for option D. Exteroceptors.
External receptors that respond to stimuli from outside the body are called exteroceptors.
Option C. is the correct answer because Proprioceptors is the sense of self-movement and body position. It sometimes may also be referred to as our sixth sense.
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What are the 3 layers within the skin organ?
epidermis, dermis, subcutaneous fat
Assuming DNA is replicated correctly (so there are no mutations),
in which of the scenarios below would the gametes produced all
be genetically identical?
Answer:
None of the choices would lead to all identical gametes.
Explanation:
Gametes are sex cells produced by sexually reproducing organims via a process of cell division called MEIOSIS. Meiosis is a cell division process which produces four (4) daughter cells (gametes), which are genetically different from the parent cell.
The difference in genetical content is as a result of a process unique to only meiosis called CROSSING-OVER OR RECOMBINATION. This process ensures that the genetic content of the gametes are altered. Hence, since gamete formation is done via meiosis, none of the scenarios in the option will lead to all identical gametes.
is a product of glycolysis, pyruvate processing, and the citric acid cycle.
CO2
ATP
NADH
FADH2
ATP is a product of glycolysis, pyruvate processing, and the citric acid cycle.
Glycolysis is the metabolic pathway by which glucose is degraded up to two pyruvate molecules, while energy is produced in the form of ATP and NADH.
It takes place in a series of nine reactions, each catalyzed by a specific enzyme, to form two molecules of pyruvic acid, with the production of ATP.The Krebs cycle produces the release of acetyl-CoA resulting in the formation of an acid with six carbon atoms, citric acid.
A series of sequential reactions then occur, each mediated by a specific enzyme.In one of the reactions of the cycle, a molecule of ATP is produced, this molecule as an energy intermediate can take energy in catabolic reactions or give it up in anabolic reactions.Therefore, we can conclude that ATP is a product of glycolysis, pyruvate processing, and the citric acid cycle.
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A diagram that is used to show the loss of energy as you go forward in a food chai
a.) food web
b.) energy pyramid
c.) concept map
d.) trophic levels
Answer:
tropical levels ........
What is another term for the responding variable?
primary variable
dependent variable
independent variable
uncontrolled variable
Explanation:
Answer:
the dependent variable would be the answer
Explanation:
i took the test
How many protons are in the nucleus of an atom with an atomic number of 12?
I hope it helps for you
Which statements are true of all plants? Select four options.
All plants are vascular.
All plants are multicellular.
All plants are eukaryotic.
All plants are autotrophic.
All plants need sunlight.
All plants reproduce sexually.
Answer:
B, C, D, E
Explanation:
I took the test and got it right yw :)
Answer:
bcde
Explanation:
got it right on test
