Please help!
Peter is pushing the rock but the rock is not moving. Choose the statement that describes the force(s) being applied in the image.
a boy pushing a rock, but the rock is not moving
The force of the push is an unbalanced force.
The forces acting on the rock are balanced.
A weaker force of pushing would result in unbalanced forces.
The force of gravity is pulling the rock upwards.
Answer:2b
Explanation:
If laco were mutated, what effect would this have on lactose metabolism?
Answer:
If lacO were mutated, what effect would this have on lactose metabolism? The repressor would not properly bind to the operator, and the lac operon would be over expressed. How does the cell recognize that lactose needs to be metabolized? Lactose is converted into allolactose, which inhibits the lac repressor.
Explanation:
What is the job of the enamel on your teeth?
Explanation:
Enamel helps protect your teeth from chewing, biting, grinding, crunching, and so on. Enamel also serves to sort of protect the teeth from potentially harmful temperatures and chemicals.
If the birth rate and death rate are balanced in a population, how might a population increase in size?
a. By doubling
b. By emigration
c. By immigration
d. By an increase in density
Cyanidin is a compound that is sensitive to pH. Cyanidin is found in plants such as hydrangeas, cornflowers, and the vegetable rhubarb. Cornflowers are blue because the cornflowers sap is basic and cyanidin turns blue in the presence of bases. Rhubarb contains an acid called oxalic acid. This affects the cyanidin and causes the red color found in rhubarb. Other plants that contain cyanidin are cherries, raspberries, and strawberries. What does the above information infer about cherries, raspberries, and strawberries?
Answer:
their colours are basically on the acidic and basic content of their cell sap in reaction with the cyanidin
if cell x enters meiosis, and nondisjunction of one chromosome occurs in one of its daughter cells during meiosis ii, how will this affect the gametes at the completion of meiosis?
Answer:
c
Explanation:
Recall what you know about hypertonic, hypotonic, and isotonic solutions. When an environment is hypotonic, what happens
to the cell?
When a cell is submerged in a hypotonic solution, water osmosis causes the cell to become flaccid.
What is osmosis?
A semi-permeable membrane is used in the process of osmosis, which allows solvent molecules to move from a solution of low concentration to a solution of high concentration.
Osmosis is a passive process that doesn't require any energy to complete. In order for the concentrations on either side of the membrane to be equal, molecules must shift from an area of greater concentration to one of lower concentration.
Any solvent, including gases and supercritical liquids, can go through the osmosis process.
When solute concentrations inside and outside of the cell are equal, an isotonic solution has been created.When the concentration of solutes outside the cell is higher than within, the solution is said to be hypertonic. When the concentration of solutes inside the cell is higher than outside, the solution is said to be hypotonic.
Therefore, when a cell is submerged in a hypotonic solution, water osmosis causes the cell to become flaccid.
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Biology A Semester Exam
4 of 284 of 28 Items
You find a blog post written by a student on a university website about photosynthesis. Assess the reliability of this source.(1 point)
It may be reliable because the blog has been featured on a popular website.
It may be reliable because they cited multiple high-quality studies from scientific journals.
It may be reliable because other students verify the information in the blog.
It may be reliable because they cited other student blogs.
A student's post on photosynthesis can be reliable because he cited multiple high-quality studies from scientific journals.
When we research to show that a hypothesis or idea is true, we need to give it reliable support so that people who read our research trust the conclusions of our research, and it is considered as true knowledge.
To give reliable support to an investigation, it is necessary to resort to feasible arguments or true knowledge developed by researchers and specialists. For this, we must consult sources of reliable information.
Examples of reliable sources of information are:
International scientific journalsUniversity researchProven scientific evidenceSpecialized booksAccording to the above, what the student must do so that his publication is reliable for other students is to cite reliable sources so that the knowledge he is sharing is reliable.
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Answer:
IT may be reliable because they cited multiple high-quality studies from scincetific journals
Explanation:
Well, we know that this person knows their stuff and has been helpfull to others in the past!
let's give an example of a man, Jorge who has a reputation for helping others and donating to charity.
Tomorrow you're leaving for a week on a business trip and you need someone to watch your house, that is one truthful and is trusting.
We have Bob down the street that is a bloger and has many followers.
The mailman, Carson that everyone likes.
someone random online will watch the house.
Are you going to trust Jorge- the person who helps everyone
Bob- the bloger
Carson-the mailman or,
Someone random- watches houses, 30 bucks a day
YOUR GONNA TRUST JORGE!! Because he is the reliable and truthful man!
:> hope that helped you
loves you guys!
. Tay-Sachs disease is a human genetic condition where cells build up with large, complex, and undigested lipids. Which organelle must be malfunctioning (not working) in this condition
Answer:
lysosomes
Explanation:
missing lysosomal enzyme
what organelle processes and sorts proteins to be shipped
Answer: The Golgi apparatus
Explanation: The Golgi apparatus modifies, sorts, and packages different substances for secretion out of the cell, or for use within the cell.
The organelle that processes and sorts proteins to be shipped is the Golgi apparatus. The Golgi apparatus is a stack of flattened sacs that is located near the nucleus of the cell.
It is responsible for processing and sorting proteins that have been made by the endoplasmic reticulum. The Golgi apparatus modifies proteins, packages them, and then ships them to their final destinations.
The Golgi apparatus has three main functions:
Modification: The Golgi apparatus modifies proteins by adding sugars, phosphates, and other molecules to them. This modification changes the properties of the proteins and makes them more functional.
Sorting: The Golgi apparatus sorts proteins into different vesicles. These vesicles are then transported to different parts of the cell, where the proteins are used.
Shipping: The Golgi apparatus ships proteins to different parts of the cell by fusing the vesicles with the cell membrane.
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Can you please help me
I am here to give the brainiest answer not to get points
Answer: yes
1. Describe how chemical changes
are
different from physical changes.
Answer:
Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula.
Explanation:
Answer:
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. In a chemical change, the kind of matter changes, and at least one new substance with new properties is formed.
Explanation:
Physical changes are limited to changes that result in a difference in the display without changing the composition.
hope that helped!
Why do the hydrogen ions and the hydroxide ions form bonds to make macromolecules?
Pick One of the Following:
A. They both have protons that attract to each other.
B. They each have an electrical charge that attracts to each other.
C. They both have electrons that attract to each other.
Answer:
A i think
Explanation:
I’ll give brain
Drag the tiles to the correct boxes to complete the pairs.
What is the function of each lymph organ?
The last drop-down box is spleen which you can’t see in the picture.
Answer: The primary lymphoid organs are the red bone marrow, in which blood and immune cells are produced, and the thymus, where T-lymphocytes mature. The lymph nodes and spleen are the major secondary lymphoid organs; they filter out pathogens and maintain the population of mature lymphocytes
Explanation: hope this helps bye :)
the auditory ossicles transmit vibrations from the
Answer:
tympanic membrane across the middle ear.
Explanation:
The tympanic membrane across the middle ear to the oval window of the inner ear.
The length of the side of square A is hall
the length of the side of square Bo what is
Ratio of the perimeter of square is
to the perimeter of square A.
the
Answer:
1•4 is the correct answer
What part of a plant cell responds to turgor pressure? *
Answer:
Cell wall. The plant cell wall accounts for the turgidity and the rigidity in plants. The cell wall protects the plant cell from bursting due to the influx of water. Rather than bursting, the cell is able to withstand the osmotic pressure exerted by the water molecules.
in the presence of a regulatory protein the lac operon is _____.
Answer:
The correct answer is : B. not transcribed
Explanation:
The regulatory protein of the lac operon is a repressor. A operon is a stretch of DNA consisting of an operator, a promoter, and genes for a related set of proteins, usually making up an entire metabolic pathway. The genes of an operon are sequentially ordered after the promoter.
You live in Florida, and you have decided to prepare your home for hurricane season. Which of the following actions would least help you achieve your goal?
A) purchasing a battery-powered cell phone charger
B) storing several gallons of water in closed, plastic containers
C) replacing your wooden front door with a door made of glass
D) filling your pantry with canned goods and other non-perishable food items
Answer:
D) filling your pantry with canned goods and other non-perishable food items
can yall see if im right
Answer:
Yes you are correct
Explanation:
in which phase of the cell cycle do cells check to determine whether the dna is fully and correctly replicated?
Answer:
at the end of G2
Explanation:
which evidence best supports the claim that mutations are a source of inheritable genetic variation
Answer:
Mutations affect protein synthesis which impacts the way traits are expressed
Answer:
Genetic Mutations Produce Variation Quick Check
1. mutations affect protein...
2. substitution
3. substitution
4. food availability
5. two nucleotides are deleted
Explanation:
Did quick check
The virus best known for causing mononucleosis, which is also suspected of contributing to Hodgkin's disease, is called
what molecule that is created during photosynthesis is stored by the plant as energy for later use?
Glucose.
................
Would a plant be able to survive if the ground tissue was damaged? Explain your answer.
Given what we know, we can confirm that with damaged ground tissue, a plant will most likely not be able to survive.
What we know about ground tissues in plants.The ground tissue forms an abundant part of all plant tissues. This tissue includes all plant tissue that is neither vascular nor dermal.This means that ground tissue covers a wide variety of functions. Two primary and important functions are the storage of sugar and water.Therefore, given the vital role of this tissue in plants and its function in storing "food" and water, we can confidently say that a plant with damaged ground tissue will not be able to survive for long.
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Answer:
No, it would not because...
Explanation:
A plant without ground tissue would not be able to survive. The ground tissue serves all types of functions, including photosynthesis, storage, and support. Without any of these functions, a plant can’t grow nor get the nutrient it needs to survive.
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If an organism's DNA contains 30% adenine nucleotides, what percentage of its DNA is composed of thymine nucleotides
The prokaryotic group that tends to inhabit extreme environments belongs to ________. A. Bacteria B. Euglena C. Protista D. Archaea
Answer:
D. Archaea
Explanation:
The prokaryotic group that tends to inhabit extreme environments belongs to Archaea.
The Archaea are prokaryotes that inhabit extreme environments, such as inside volcanoes, while Bacteria are more common organisms, such as E. coli.
Hope this helps :)
what gives animal cells their shape and structure?
Answer: Animal cell's shape and structure are determined by the cytoskeleton.
What is the cytoskeleton?
The cytoskeleton is present in all animal cells, prokaryotic (bacterial) cells contain a very rudimentary version of it, while plant cells do not have one at all. It consists of several types of large molecules that provide physical support to the cell as well as internal transport along its length for organelles like endoplasmic reticulum (ER), mitochondria, vacuoles, etc. The three main components are microtubules, intermediate filaments and microfilaments which give rise to different structures within the cell. Microtubules are long cylindrical tubes made up of two protein subunits (alpha and beta tubulin) that form a hollow tube. These are the main components of the cytoskeleton, they provide support to the cell while also having transport capacity for organelles like endoplasmic reticulum (ER), mitochondria, vacuoles, etc. Microtubules are dynamic structures which means their state is constantly changing i.e., growing, shrinking or moving around depending on requirements of the cell.
What are the two types of force in simple machine?
Answer:
there are many..
Explanation:
wheel and axel are two type of forces in simple macine
Explanation:
any two types of force are : contact force & frictional force.
hope this helps you.
Help me please!!! Which hot spot is it? Left, 1st middle, 2nd middle, or Right?
Answer:
Left side
Explanation:
The mitochondria
The Krebs cycle or citric acid processes in the mitochondrial matrix yield a substance called NADH. Adenosine triphosphate is then produced from NADH by enzymes included into the mitochondrial inner membrane (ATP).
What is the main role of mitochondria in nutrient energy?Organelles, or “tiny organs,” are what mitochondria are. They generate ATP (adenosine triphosphate), a chemical that is used by the cell to power the various tasks it must perform, as a source of energy.
The creation of cellular ATP by oxidative phosphorylation is undoubtedly one of the activities of mitochondria, but they also play significant roles in ion homeostasis.
Various metabolic pathways, apoptosis and programmed cell death, as well as the production and consumption of ROS.
Therefore, mitochondria transform nutrient material into an energy form that is used by the cell.
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