Answers
Answer: B
Explanation:
Related Questions
Fibroblasts can be placed on thin sheets of silicone rubber. Under normal circumstances, fibroblasts exert sufficient tension on the rubber so that it visibly wrinkles. Explain how the ability of fibroblasts to wrinkle rubber would change if the cells were treated with a permeable form of C3 transferase, a toxin (from the bacterium Clostridium botulinum) that covalently modifies an amino acid in Rho. The modification renders Rho unable to bind to proteins that it would normally bind to when active.
Answers
Answer:
C3 transferase decreases Rho activity and contractility by decreasing the number of stress fibers and thus also reducing wrinkles
Explanation:
Rho protein is a small GTPase, i.e., an enzyme that binds GTP to hydrolyze it to GDP, which is known to mediate the formation of stress fibers and focal adhesion. Rho protein is involved in diverse cellular functions including, among others, adhesion, motility, and division by reorganization of the actin cytoskeleton. The bacterial toxin C3 transferase derived from Clostridium botulinum is able to lock Rho in an inactive state. C3 transferase adds an ADP-ribose to Rho, thereby leading to the accumulation of a Rho-guanine nucleotide dissociation inhibitor (GDI) complex in the cytoplasm. In consequence, C3 transferase functions to decrease contractility by blocking Rho activity, decreasing the number of stress fibers and leading to a reduction in wrinkles.
Which of the following would NOT elp evaluate the strength of a scientific claim that life on Earth could not have started without the presence of orgar
O conducting a survey
O scientific argumentation
O critical and logical thinking
O considering other scientific explanations
Answers
Answer:
a: conducting a survey
Explanation:
i got it correct
How might the production of antibiotics and odours have evolved?
Answers
Answer:
Antibiotic resistance evolves naturally via natural selection through random mutation, but it could also be engineered by applying an evolutionary stress on a population. Once such a gene is generated, bacteria can then transfer the genetic information in a horizontal fashion (between individuals) by plasmid exchange
What is the benefit of an arthropod’s exoskeleton.
Question 5 options:
A. It allows arthropods to breathe.
B. It protects and supports the arthropod’s body.
C. It allows the arthropod to get food.
D. It allows the arthropod to see far distances.
Answers
Answer:
B
Explanation:
Beyond support, the exoskeleton provides protection against predators and strength against prey. And it protects arthropods from the environment, for example, keeping ocean-dwellers from being affected by small changes in saltiness and preventing land-dwellers from drying out.
Explain how the discoveries by Rosalind Franklin helped Watson and Crick build an accurate model of DNA.How can DNA be used to help solve a crime?
Answers
Answer:
Rosalind Franklin had taken the first picture showing the structure of DNA, called the double helix. This helped confirm what Watson and Crick had thought, thus leading them to make the first accurate model. DNA can be used to solve a crime because it can prove a certain person did something. EX: finding hair and who it belongs to/ finding finger prints and who they belong to.
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This sentence explains the production and movement of energy in the sun and the flow of energy from the sun to earth. drag each item to the correct location. Answers may be used more than once. (2 points)
Answers
Answer:1.nuclear fusion 2.radiation 3.conduction 4.radiation
Explanation:I just took the quiz! All answers are correct
Answer:
Answer:1.nuclear fusion 2.radiation 3.conduction 4.radiation
Explanation:
PLEASE HELP WILL MARK BRAINLEST!!!
Answers
Answer:
c i had that before its c
Explanation:
Which wave interaction is shown by the diagram? o absorption o diffraction o reflection o refraction
Answers
Answer:I agree
Explanation:
Diffraction wave interaction is shown by the diagram.
What do you mean by diffraction?Diffraction is defined as the interference or bending of waves around the corners of an obstacle or through an aperture into the region of geometrical shadow of the obstacle/aperture.
The most common example of diffraction occurs with water waves which bend around a fixed object. Light bends similarly around the edge of an object. The animation shows wave fronts passing through two small openings.
Diffraction results from the interference of an infinite number of waves emitted by a continuous distribution of source points. According to Huygens' principle every point on a wave front of light can be considered to be a secondary source of spherical wavelets.
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Both prokaryotic and eukaryotic cells use ________ to turn certain genes on or off.
Group of answer choices
RNA polymerase
enhancers
activators
Answers
Both prokaryotic and eukaryotic cells use RNA polymerase to turn certain genes on or off. The correct option is A.
What is RNA polymerase?RNA polymerase, or more specifically DNA-directed/dependent RNA polymerase, is a molecular biology enzyme that synthesizes RNA from a DNA template.
The RNA polymerase enzyme is a large complex composed of many subunits. The prokaryotic RNA polymerase has four subunits that can transcribing all types of RNA.
These enzymes in eukaryotes have eight or more subunits that aid in the attachment and processing of DNA during transcription.
RNA polymerase (abbreviated RNAP or RNApol), or more specifically DNA-directed/dependent RNA polymerase (DdRP), is a molecular biology enzyme that synthesizes RNA from a DNA template.
RNA polymerase is used by both prokaryotic and eukaryotic cells to turn genes on and off.
Thus, the correct option is A.
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According to Charles Darwin theory of natural selection
Answers
the answer should be the species most adaptable to changes (like in the environment etc.) but I would go for C or D
Answer:
C or D
Explanation:
the answer should be the species most adaptable to changes (like in the environment etc.) but I would go for C or D
Is this correct? If not plz help
Answers
Answer:
Where is the question?
Explanation:
The above pictures show the interaction of pollinators (like insects, birds, and bats)
and flowering plants. Use the above pictures and what you learned in your science class to answer the follow
• Construct an explanation on how pollinators and flowering plants interact and affect each
other.
• What do you predict would happen to flowering plants if they blended into their
surroundings? Explain.
pls help me. i beg you
Answers
Answer:
The pollinators help spread the pollen of the flowering plants to help them reproduce. If the flowering plants blended into their surroundings, the pollinators would not be able to identify the flowering plants, and the plants would eventually die off or become extinct.
Explanation:
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The periodic table ____
a.) is arranged by atomic mass
b.) was developed by early alchemists
c.) is arranged by number of protons
d.) is divided into vertical periods and horizontal groups
Answers
Answer:
D.
Explanation:
The periodic table is divided into vertical periods and horizontal groups
9. Doctors tested a patient to find out what molecules were in her cells. Her cells contained normal
levels of oxygen molecules, low levels of amino acid molecules, and low levels of glucose molecules.
Will this patient be able to exercise normally?
w
a
Yes, as long as her cells have enough oxygen, her body will be able to exercise.
b
No, her cells need glucose to react with oxygen to release enough energy to exercise.
С
No, her cells need amino acids to react with oxygen to release enough energy to exercise.
No, her cells need glucose to react with amino acids to release enough energy to exercise.
Answers
Answer:
D. I geuss
Explanation:
Since amino acids can be converted into glucose through gluconeogenesis
HELP ASAP!! In angiosperms, reproduction takes place in
A-cones ,
B-pollen.
C-flowers.
D-leaves.
Answers
Answer:
i think ur answer B.)
Explanation:
sorry if wrong
hope this helps
Anoles are a family of IIzards found throughout the Americas. Green anoles, Anolis carolinensis, are native to i specific area of Florida. In this
area, the primary territory of green anoles was once along the ground and in low-level branches. However, the Introduction of brown anoles,
Anolis sagrei, from Cuba forced green anoles to shift o their territory to the tops of trees. The branches at the treetops are smoother and thinner
than those close to the ground. Over time, the toe pads of the green anoles have become larger and stickler.
What is the best explanation for the change In green anoles' toe pads?
Some individuals In the green anole population had mutations that helped them survive and reproduce In the new conditions,
so thelr genes were passed on to the next generation.
O B. Gene flow between the green and brown anoles provided the green anoles with traits that helped them survive and
reproduce, and those tralts were passed on to the next generation.
The feet of the green anoles became larger and stickler as they used them, which helped the green anoles to better survive,
reproduce, and pass the tralt on to the next generation.
O D. The change in conditions caused mutations In green anoles that gave them beneficial tralts for survival and reproduction, and
those mutations were passed on to the next generation.
Reset
Next
dmentum. All rights reserved.
ED INTL
Answers
Answer: D
Explanation:
Answer:
Some individuals in the green anole population had mutations that helped them survive and reproduce in the new conditions, so their genes were passed on to the next generation.
Explanation:
Producers are organisms that
capture energy and use it to
produce their own food. Which of the following is a producer?
A. fish
B. whales
C. plankton
D. algae
Answers
Answer:
D. Algae
Explanation:
They are producers because they make their own food through photosynthesis
explain the challenges Israel is facing with implementing vaccine passports. Also explain what issues poorer countries like Palestine are facing with getting vaccines. Do you think people in rich countries must get vaccinated? How can we help countries that have poor health services get vaccinated?
Answers
Answer:
It will cause him to get sick with corno and also he will affected most people that he sees or touch but the vaccine helps prevent that.
Explanation:
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Traits, or characteristics, that organisms develop and are passed down to become new species are called _______ traits.
Answers
Which of the following scenarios will decrease the genetic variation of a population?
Answers
Answer:
population of birds suddenly decrease their frequency of sexual reproduction.
Explanation:
This is the answer to quiz accordingly.
Which cause of climate change can cause the Earth to get colder? Explain how.
Answers
The tilt in the axis of the Earth is called its obliquity. This angle changes with time, and over about 41 000 years it moves from 22.1 degrees to 24.5 degrees and back again. When the angle increases the summers become warmer and the winters become colder.anation:
[please] put these in order
Answers
Answer: The arrangements and correct order of the above described genetic and behavioural adaptations includes:
A.) Camouflage: This is a survival adaptation by which an animal blends in and is hidden in its surroundings.
B.) Mimicry: This is an organism exhibiting characteristics similar to one known to be dangerous.
C.) Tropism: This is the growth or movement of an organism ( usually plant) in response to a stimulus.
D.) Venom: This is a poison secreted by animals for either defensive or offensive purposes.
E.) Mutualism: This is the interaction of two organisms where both benefits.
F.) Commensalism: This is the interaction of two organisms where one is helped and the other is neither helped nor harmed.
Explanation:
In the study of organisms and it's environment, they are able to adapt through genetic and behavioural mechanisms. Adaptation of defined as the ability of organisms to become fitted to its environment by modifying or changing its features. These features may be structural or behavioural.
STRUCTURAL ADAPTATION: Almost every part of the body of a living organism is structurally adapted to its mode of life. They are structurally adapted for the following specific functions:
--> Escape and defence: many animals use CAMOUFLAGE to remain unnoticed by potential predators. While some others are capable of producing poisonous VENOMS which may become offensive to the predators. Also many harmless organisms may possess structural behaviours that may MIMIC dangerous organisms thereby keeping their predators at arms length.
--> obtaining food: organisms needs to possess some structural features that will enable them obtain food in their environment. This usually leads to forming various feeding relationship ( which may be MUTUALISTIC or COMMENSALISM) with one another to be able to obtain food for survival.
BEHAVIOURAL ADAPTATION: Behaviour is everything an organism does in response to changes in its environment. Plants do exhibit behavioural adaptations and a typical example is the phototrophic movement of plant shoots which is a type of TROPISM.
All of the following have been accomplished by space programs except-
A. placing semi-permanent structures in earth’s orbit
B. landing spacecraft on planets other than our own
C. sending spacecraft into orbit that allow us to study the universe in greater detail
D. develop technology and resources capable of sending the general population into space on a regular basis
Answers
Answer:
D
Explanation:
Develop technology and resources capable of sending the general population into space on a regular basis.
What is Developmental Technology?L. Mumford presented an intriguing theory regarding the origin of technology, contending that biotechnology gave rise to both machine and gun technology.
Technique is derived from the characteristics of how people behave and, in its earliest forms, is directly tied to the origin of man. It was first and foremost life-focused, and only afterwards was it work-focused.
According to L. Mumford, technique with a focus on power and output developed much later. He held that the impersonal aspects of human adaptability to the outside world are what give origin to technology.
Therefore, Develop technology and resources capable of sending the general population into space on a regular basis.
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Sleet forms directly from which type of precipitation?
A. Snowflakes
B. Hail
C. Rain drops.
D. Dust
Answers
Answer:
C
Explanation:
Sleet is pellets of ice that form when snow falls into a warm layer and melts into rain. The rain then falls into a freezing layer of air that is deep enough to refreeze the raindrops into pellets
10 Volcanic ash serves as a good marker of geologic
time because the ash
(A) is highly radioactive
(B) destroys all plant and animal life
(C) has only a local deposition
(D) is deposited rapidly over a large area
Answers
Answer:
D
Explanation:
Choose the term that best matches the description given.
This is an illegal immigrant who paid for assistance in coming to this country and obtaining a job:
forensic nurse examiner
Identi-KIT
forensic photographer
victim of human smuggling
Answers
a male is born colorblind what do we know about his mother
Answers
Briefly explain the neurophysiological basis (i.e. neuronal/axonal activity, synaptic behaviour) of how the monkey grip procedure
performed about the arms is able to cause a greater stretch reflex response in the leg for the same amount of sensory input when compare to a response without the monkey grip procedure.
Answers
The monkey grip procedure involves squeezing an object with one hand while the other arm is passively stretched that causes an increase in the stretch reflex response in the leg muscles of the same side that is being stretched.
What are the neurophysiological basis of the monkey grip procedure?The neurophysiological basis involves the activation of descending pathways from the brain modulating the stretch reflex response. When the grip is initiated, activation of motor areas in the brain increases that send signals down to the spinal cord.
These signals inhibit the interneurons activity that causes stretch reflex response causing a greater response in the leg muscles when they are stretched. The stretch reflex involves the activation of muscle spindles in the spinal chord that inhibit or excite the motor neurons that control the muscle.
The monkey grip procedure increases the excitability of the motor neurons controlling the stretched leg muscles that results in a greater stretch reflex response leading to a more forceful contraction of the leg muscles.
Therefore, the monkey grip procedure involves the complex interactions between descending motor pathways from the brain in the spinal cord that underlie the stretch reflex response.
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Step 5: Locate fronts and forecast weather patterns.
a) Use Map D in the Data section.
b) Label the high pressure area with an H.
c) Label the low pressure area with an L.
d) Recall that fronts occur where there are large changes in temperature, air pressure, and
wind speed. Remember that the more fletches, or lines, on a weather symbol indicate higher
wind speeds. Using a blue colored pencil, draw and label the cold front on the map.
e) Using a red colored pencil, draw and label the warm front on the map.
f) Use the map to answer the follow-up questions.
Answers
Tay-Sachs disease is a genetic disorder that is usually fatal in young children. If both parents are carriers of the disease, the probability that their offspring will develop the disease is approximately 0.25. Suppose that a husband and wife are both carriers and that they have four children. (The outcomes of the four pregnancies are independent). What is the probability that two children develop Tay-Sachs disease
Answers
Answer:
Tay-Sachs disease (TSD) is a genetic disorder that normally kills children when they are young. If both parents are carriers of the disease, their offspring have a 0.25 chance of contracting it.
Explanation: