Epinephrine triggers a direct signal transduction pathway.
I know this because when epinephrine binds to it's receptor example on a muscle cell,this is known as a type of G protein -coupled receptor,signal transduction cascade is triggered and this involves the production of a second messenger molecule cyclic AMP(cAMP).
Epinephrine also know as Adrenaline or sus-phrine.
It is a vasoconstrictor,broncho dilator and a sympathetic stimulant.
It constricts the peripheral abdominal organs as well as a stimulating the heart beat thereby raising the blood pressure,it also relaxes the spasms of the bronchial muscles thereby promoting ventilation of the lungs.
genotype and phenotype of 4 o'clock flowers
Answer:
genotype:All of the the offspring are RW.
phenotype:All of the offspring are pink.
What is the process that occurs when a recipient eukaryote cell accepts DNA gragmets indirectly from the surrounding environment?
Answer:
horizontal gene transfer
Explanation:
Horizontal Gene Transfer (HGT) can be defined as a non-sexual process that enables the exchange of genetic information between genomes. Although HGT mainly occurs between prokaryotic genomes, an increasing number of examples involving eukaryotic host genomes have recently been described. Agrobacterium bacteria are capable of transferring and integrating DNA into the genome of eukaryotic cell hosts by the HGT mechanism. The transference of genetic material via Agrobacterium-mediated transformation is widely used in biotechnology to generate plants with desired genetic sequences. In the last years, it has been shown that various bacterial species including Bartonella henselae Rhizobium etli or even Escherichia coli, are able to genetically transform eukaryotic cells under laboratory growth conditions. The genetic phenomenon of horizontal gene transfer has evolutionary significance since it enables to bypass barriers between kingdoms in order to acquire nucleotide sequences that may eventually have some adaptive advantage. Moreover, the mechanism of horizontal transfer challenges a narrow vision of the eukaryotic genome as a fixed entity.
Which of the following situations best describes the use of a renewable resource?
A
filling a car with gasoline
B
building wooden furniture
С
mining copper
D
burning coal in a power plant
600 G basketball a 500 G football a 150 G baseball and a 50 G Jo Jo for toys if you had to throw one of the four which one would take the most forced to throw
Answer:
The Basketball
Explanation: The heavier something is (in this case the basketball is the heaviest object) the more force it requires
Hope This Helps!
What is point source pollution?
Give examples of point source pollution.
What is non-point source pollution?
Answer:
The United States Environmental Protection Agency (EPA) defines point source pollution as any contaminant that enters the environment from an easily identified and confined place.The classic image of a factory smokestack belching smoke and fumes into the air or an industrial discharge pipe pouring contaminated liquid into a river are some great examples of point source releases to the environment.Nonpoint source (NPS) pollution is pollution resulting from many diffuse sources, in direct contrast to point source pollution which results from a single source.Hope this helps :)
A student collects several plants and pebbles from a riverbank, places them in an aquarium, and records observations for 15 days. The sizes of the plants increase, while the sizes of the pebbles remain the
same. The student classifies the pebbles as nonliving things.
Which criteria does the student use as the basis for the classification?
ability to grow
ability to move
O ability to reproduce
O ability to respond to stimuli
Answer:
ability to grow
Explanation:
The student uses one of the living attributes, ability to grow to classify the pebbles as non-living things.
There are 8 major attributes of all living organisms;
Ability to moveAbility to reproduce Ability to obtain nourishmentIrritability growthexcretionrespirationdeathSince the pebble to could not grow, it is classified as a non-living organism.
How do our cells form
carbon dioxide?
Answer:
cellular respiration
Explanation:
cells use oxygen to break down sugar , so it uses energy to do so right? so as the energy is released so is carbon dioxide. just as when u breath in oxygen your using energy the. u release the energy with carbon dioxide from your lungs.
Organize the following words from smallest to largest in size and list them below.
virus, carbon atom, hydrogen atom, water molecule, bacterial cell, plant cell, animal cell, mitochondrion, chloroplast, glucose molecule, nucleotide, a condensed chromosome, nucleus, ribosome, human brain, human, petri dish, sucrose molecule, glycine (an amino acid), tryptophan (an amino acid)
Answer:
Hydrogen atom
Carbon atom
Water molecule
Glucose molecule
Sucrose molecule
ribosome
Virus
Mitochondrion
glycine
Bacterial cell
Plant cell
Animal Cell
human brain
human
Explanation:
Atoms are the smallest particle and they can not be broken down into further pieces. The molecules are made up of two or more atoms. Cell is made up of two or more molecules.
According to some critics of evolution, natural selection can produce changes in a population, but it cannot cause substantial changes leading to?
Answer:
It cannot cause substantial changes leading to the formation of a new species.
Explanation:
So natural selection would improve a population but creating a different one will not happen.
i need to finish this test by 11:59 can someone help
Answer:
it's the large central vacoule
Answer:
1.C
Explanation: Animal cells and plant cells both contain:
cell membrane
cytoplasm
nucleus
mitochondria
Plant cells also contain these parts, which are not found in animal cells: cell
wall
vacuole
chloroplasts
Plant cells are the basic unit of life in organisms of the kingdom Plantae. They are eukaryotic cells, which have a true nucleus along with specialized structures called organelles that carry out different functions. Plant cells have special organelles called chloroplasts, which create sugars via photosynthesis. They also have a cell wall that provides structural support.
I hope this helps Plz tell me if its wrong so i can fix it :)
c
Determine whether the pair of lines 4x + 2y = 6 and y = -2x + 200 are parallel, intersect, or coincide
Answer:
parrellel
Explanation:
because the y slopes would be the samw
r
Please help me it’s due today!!!!
Answer:
This is a chart I use in my class, I hope you find it helpful. Eventually, you may need to memorize these and whether or not they are polar and such.
Explanation:
How would the environment impact a multifactorial trait like height in someone with normal genetic variation? How would environment impact someone with a mutation that results in dwarfism?
Answer:
Explanation:
On someone with a normal genetic variation, the environment helps them adapt and pushes for the evolution of the traits that will help that species increase their chances of survival in future generations. This includes traits such as height, thus increasing this trait so that the species is able to reach food in higher places or reach higher places in order to find shelter. This does not have the same effect when dealing with a certain genetic mutation such as dwarfism since the mutation targets a specific value for these traits and is not affected by its environment.
The nucleotide sequence encoded in a gene defines the
that make up proteins.
Answer:
amino-acids
Explanation:
The process by which the nucleotide sequence in a DNA template is used to synthesize a complementary RNA is known as 'transcription', while the process by which this messenger RNA (mRNA) template is converted into an amino acidic chain in a protein is known as 'translation'. During transcription, the DNA template is read by an enzyme named RNA polymerase that synthesizes a complementary single-stranded RNA sequence called primary transcript (precursor mRNA), which is subsequently processed to yield a mature mRNA. On the other hand, during translation, this resulting mature mRNA is read by codons composed of triplets of bases (3bp). These triplets (codons) are read by using the genetic code which defines how the mRNA sequence will be specifically translated into 20 types of amino acids (with exception of stop codons TAA, TAG, and TGA) in order to form the polypeptide chain.
Human embryos must possess what to be viable
Answer: At least one X chromosome.
Answer:
At least one X chromosome
True or False?
An apple, potato, and onion all taste the same if you eat them with your nose plugged
I was going to try it, but I don't have any onions.
Answer: True! I just saw something about this :)
Explanation: Makes sense and I just saw something about it haha:)
let me know if right/I helped!
All the biotic and abiotic factors in an area and all the interactions among them is called a(n)
A • Species
B • Consumer
C • Ecosystem
D • Food Chain
Answer:
C- Ecosystem
Explanation:
species are a type of animal, consumer is an organism that consumes things, and a food chain is the chain of organisms getting consumed. Hope this helps!
Use your own observations and real-life experiences about your brain
Answer:
our life experience changes our brain so if u fall off a bike ur brain will train u and send signals to ur body ur brain also knows when its forgetting something but doesn't know what its forgetting
Explanation:
_______ bonds are created by gaining or losing electrons
Answer:Iconic
Explanation:
An experiment is designed to study the mechanism of sucrose uptake by plant cells. Cells are immersed in a sucrose solution, and the pH of the solution is monitored. Samples of the cells are taken at intervals, and their sucrose concentration is measured. The pH is observed to decrease until it reaches a steady, slightly acidic level, and then sucrose uptake begins. Rank the steps from first to last. To rank items as equivalent, overlap them.
A proton Pump, using ATP, pumps protons outside.
Sucrose moves into the cell.
H+ moves down electrochemical gradient into the cell.
A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.
pH decreases.
The gradient becomes sufficient.
Answer:
A proton Pump, using ATP, pumps protons outside
A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.
pH decreases;
The gradient becomes sufficient.
H+ moves down electrochemical gradient into the cell; Sucrose moves into the cell.
Explanation:
A proton Pump, using the energy of ATP hydrolysis, pumps protons outside the cell.
A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.
The continues outward pumping of protons by the proton pump causes the pH of the extracellular fluid to decrease
At some point the gradient becomes sufficient, and pH reaches a steady slightly acidic level.
H+ moves down its electrochemical gradient into the cell together with Sucrose through the hydrogen ion-sucrose co-transporter.
To rank items as equivalent, overlap them.
E
C
A
D
F
Co-transporterIn this experiment in which the mechanism of sucrose uptake by plant cells immersed in a sucrose solution, and the pH of the solution is monitored, the following steps are ranked in order:
E) pH decreases.
C) H+ moves down the electrochemical gradient into the cell.
A) A proton Pump, using ATP, pumps protons outside.
D) A steady proton gradient with a higher concentration of H+ out of the cell is maintained by the proton pump.
F) The gradient becomes sufficient.
A co-transporter also called a symporter, is a carrier protein that transports a solute and an ion from one side of the membrane to the other at the same time.
The proton pump is an integral protein that builds a proton gradient across a biological membrane.
The cell cannot import sucrose by simple diffusion, the cell expends energy to move the substance against a concentration gradient.
The sodium and potassium maintain the electrochemical gradient of living cells, the direction an ion moves across a membrane is determined by the electrochemical gradient.
Learn more about sucrose uptake:
https://brainly.com/question/559824
I’ll mark as BRANLIEST!!
Plz I need this for my test!!
1) Observation: a teenager observed that he had three new pimples the night after eating a chocolate bar.
Question:
Hypothesis:
2) Observation: A mother observed that the plant that she accidentally spilled salt water on was wilted.
Question:
Hypothesis:
3) Observation: A little boy observed the leaves on trees changed colors when the temperature was lower.
Question:
Hypothesis:
Answer:
See the answer below
Explanation:
In science, research questions are generally derived from the observation of phenomena. Also, hypotheses that represent general statements that have not been tested are formulated in such a way that they can be falsified. Hence, for each of the observations in the illustration, the question and their respective hypothesis would be as follows:
1. Observation: a teenager observed that he had three new pimples the night after eating a chocolate bar.
Question: Do chocolate bars cause pimples in teenagers?
Hypothesis: If teenagers eat chocolate bars, they might get pimples.
2. See the attached image
3. Observation: A little boy observed the leaves on trees changed colors when the temperature was lower.
Question: Do lower temperatures cause tree leaves to change color?
Hypothesis: If the ambient temperatures of trees are lowered, their leaves might change color.
Match the bone or bony structure with the structure with which it articulates. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. ResetHelp 1. : head of radius 2. : glenoid cavity 3. : manubrium 4. : radial notch of ulna 5. : ulnar notch of radius 6. : olecranon fossa of
Answer:
The Sternal end of the Clavicle goes with the Manubrium of the sternumThe Olecranon process of Ulna articulates with the Olecranon fossa of the HumerusThe Capitulum articulates with the Head of RadiusThe Head of Humerus articulates with the Glenoid Fossa of the Scapula or the Glenoid CavityThe Head of Radius articulates with the Radial notch of UlnaHead of Ulna articulates with the Ulna notch of RadiusCheers!
If we consider the challenges posed by the Great Plate Count Anomaly, what is the primary advantage of using culture independent techniques in microbiology?
Culture independent techniques is simply the use of methods in microbiology that are not based on or relies on cultivation inorder to study a microorganism in a defined ecosystem.
Independent based techniques offer a variety of advantages over the culture dependent methods.
The primary advantage of using culture independent techniques in microbiology is that culture independent techniques has the ability to identify or point out a large proportion of the microbial diversity readily and that identification on a normal state will be difficult to be observed using culture based studies or culture independent techniques.
The explanation regarding the primary advantage of using culture independent techniques in microbiology is described below;
The following information should be considered:
Culture independent techniques has the capability to identify or point out a large proportion of the microbial diversity readil. And that identification on a normal state should be tough to be observed via culture based studies or culture independent techniques.Learn more:
https://brainly.com/question/1368131?referrer=searchResults
I NEED HELP ASAP
4)I am an animal cell
PROKARYOTE
EUKARYOTE *****
BOTH
7) I contain genetic information
PROLARYOTE
EUKARYOTE ******
BOTH
6)
4) Eukaryote Cells are animal cells
7) Both I'm pretty sure
Which two molecules do green plants use to make glucose?
A. Hydrogen and oxygen
B. Carbon dioxide and water
O C. Methane and iron oxide
O D. Nitrogen and water
Answer:
b
Explanation:
Answer:
Carbon dioxide and water
Explanation:
during photosynthesis plants produce glucose from simple inorganic molecules - carbon dioxide and water - using light energy.
Identify the incorrect statement about a single motor unit. Identify the incorrect statement about a single motor unit. Some motor units include as many as 2000 muscle fibers. Fine motor skills depend on the development of small motor units. The more neurons involved, the more powerful the contraction. The smaller the number of muscle fibers, the more precise the movement. Muscle fibers of one motor unit intermingle with the fibers of another motor unit.
Answer:
The more neurons involved, the more powerful the contraction
Explanation:
The motor unit can be defined as the functional unit for muscle contraction, which consists of a motor neuron and the associated muscle fibers it innervates. The number of associated muscle fibers varies depending on the muscle’s ability for contraction. Muscles with a higher number of motor units can modulate force output more finely. The number of muscle fibers per motor unit is inversely proportional to the force that it generates, and while higher is precision, lesser is the size of the motor unit. A higher number of neurons is required for controlling motor units with lesser size, thus being greater the brain's control over the extent of shortening.
The incorrect statement about a single motor unit is that some motor units include as many as 2000 muscle fibers. The correct option is A.
One motor neuron and the muscle fibres it innervates make up a motor unit in most cases. Although a motor unit's muscle fibre count might vary, it is normally significantly lower than 2000.
Depending on the muscle and its purpose, the number of muscle fibres in a motor unit might range from a few to several hundred.
Smaller motor units are linked to more precise motions, whereas larger motor units are in charge of more strong contractions. The size of the motor units affects the level of control and precision of movement.
Thus, the correct option is A.
For more details regarding motor neuron, visit:
https://brainly.com/question/14209878
#SPJ6
Your question seems incomplete, the probable complete question is:
Identify the incorrect statement about a single motor unit.
A. Some motor units include as many as 2000 muscle fibers.
B. Fine motor skills depend on the development of small motor units.
C. The more neurons involved, the more powerful the contraction.
D. The smaller the number of muscle fibers, the more precise the movement.
E. Muscle fibers of one motor unit intermingle with the fibers of another motor unit.
Is rRNA used in transcription, translation, or both?
Answer:
transcription
Explanation:
Which of the following is NOT a function of
lipids?
insulation
short term energy storage
make up cell membranes
long term energy storage
Answer:
The answer is "long term energy source!"
Explanation:
Lipids are able to create their own energy, but they are not capable of controlling its capacity. Meaning, that they cannot control how much more energy they can withdraw.
When the speed of the bottle is 2 m/s, the KE is
V 0.5 kg • m/s2
When the speed of the bottle is 3 m/s, the KE is
V1kg m/s2
When the speed of the bottle is 4 m/s, the KE is
V 24 kg . m/s2
When the speed of the bottle is 5 m/s, the KE is
V 3 kg . m/s2
When the speed of the bottle is 6 m/s, the KE is
V 5 kg. m²/s2
Answer: 0.5. 1. 2. 3. 5
Explanation:
When the speed of the bottle is 2 m/s, the KE is These are the responses to the speed question: 0.5, 1.125, 2, 3.125 and, 4.5
What does speed mean?Speed is defined as the distance that is allegedly covered in a given amount of time. It is regarded as the speed at which anything is said to move.
In this instance, speed is estimated as 1/2mv2.
As a result, the variables for calculation are:
If the bottle is moving at 2 m/s, then
= ½ (0.250) (2) ^2
= 0.5
If the bottle is moving at 3 m/s,
= ½ (0.250) (3) ^2
=1.125
If the bottle is moving at 4 m/s, then
= ½ (0.250) (4) ^2.
= 2
If the bottle is moving at 5 m/s, then
= ½ (0.250) (5) ^2
= 3.125
= ½ (0.250)(6)^2
=4.5
Therefore, It is regarded as the speed at which anything is said to move.
Learn more about speed, here:
https://brainly.com/question/11580018
#SPJ6
Keystone species are those that are a necessary component to the stability of the ecosystem, and without them, many
other organisms would not survive and the ecosystem can collapse. Which of these is NOT an example of a keystone
species and the role it plays in Georgia's ecosystems?
B
beaver, their cars create small ponds to help other species have a place to
live and helps to stimulate the growth of plants
kudzu kudzu was introduced from Japan as an omamental plant, and the
Civilian Conservation Corps used it to help reduce soil erosion
alligators, their tails dig holes that hold water during times of drought, and
this water is used as a source for drinking water by many species
red cocaded woodpecker, they drill deep nests into Georgia's pine trees,
and when not in use by the woodpecker, many other organisms will use
them
Answer:
red cocaded woodpecker, they drill deep nests into Georgia's pine trees,
and when not in use by the woodpecker, many other organisms will use them
Explanation:
red cocaded woodpecker, they drill deep nests into Georgia's pine trees,
and when not in use by the woodpecker, many other organisms will use them is not a keystone species because it does not form an important component in the ecosystem, does not play a crucial role in the ecosystem and it's presence does not have a great effect on the ecosystem.
red cocaded woodpecker, they drill deep nests into Georgina pine trees, these their action does not contribute to the survival of the ecosystem because other organisms can still survive without it.