Answer:
A. Codominance
Explanation:
Which phrase best describes the need for ion channels?
ions must be able to interact with the charged regions of the cell membrane
o ions need to be sheltered from interacting with the charged regions of the cell membrane
Oso nutrients may enter the cell
O so nutrients may exit the cell
Ion channels are specialized proteins in the plasma membrane that provide a passageway through which charged ions can cross the plasma membrane down their electrochemical gradient. The resulting ionic current, generated by the movement of charged ions through membrane channels, can be measured by patch-clamp methods.
Ion channels must be able to interact with the charged regions of the cell membrane so nutrients can enter the cell.
What are ion channels?
Ion channels are passages in the cell membrane that allow the passage of charged molecules such as
Sodium: Na+Potassium: K+Ions pass from one side to the other of the cell according to the electrochemical gradient. In other words, they go from a place with high concentration to one of low concentration. But to do this, they need to interact with the charged regions of the membrane, which are the ion channels.
Ions channels are one of the ways that nutrients enter the cell.
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The scar left on the seed coat after the seed has separated from its stalk is called the: a. Micropyle. B. Funiculus. C. Hilum. D. Suspensor. E. Integument
The scar left on the seed coat after the seed has separated from its stalk is called the: Hilum.
Which statement describes the solar feature labeled B?
Answer:
here is the pic so can someone answer the question I need help T-T!!!
Question 2 of 10
What is the name of the planet next to the label A?
Solar System
A
EARTH
SUN
O A. Saturn
O B. Mars
OC. Venus
Answer:
C venus
Explanation:
This can be learnt as Mary's violet eyes makes John stay up nights
M-mercury
V-venus
E-earth
M-mars
J-jupiter
S-saturn
U-uranus
N-neptune
how does the changing nature of water rights relate to the investigation phenomenon
Answer:
Natural disasters are caused due to different reasons like soil erosion, seismic activity, tectonic movements, air pressure, and ocean currents etc. Natural activities taking place in the earth's crust, as well as surface, are the main reasons for these disasters.
We are running out of water due to change in climate conditions like floods, droughts, sea level rising.
Reasons of water running out:Drought- The world’s changing climate has been linked to an increased incidence of droughts that results in increase demand of water supply.Sea level rising- Rising sea level increases the salinity of both surface water and ground water through salt water intrusion.Increasing population-About 70% of the world’s freshwater consumption is for agriculture and food demand is rising. The global population is increasing, which will increase global food demand and this will increase the water required for food production.you can learn more about this water changes here:
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Please someone help me with this.
Match the muscles and their associations.
involuntary
voluntary
electrical nodes
tendons
digestive tract
arteries
extensors
Answer choice: Skeleta, smooth, cardiac
The associations are involuntary, digestive tract and arteries >> smooth; whereas voluntary, tendons, extensors >> skeletal and electrical nodes >> cardiac.
What are muscles?Muscles are a special type of tissue that has the ability to contract in response to a given stimulus.
There are different three types of muscle fibers: cardiac muscle, skeletal muscle and smooth muscle.
Cardiac muscle and smooth muscle are involuntary muscles, whereas skeletal muscle is a voluntary muscle.
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Answer:
Involuntary: Smooth
Voluntary: Skeletal
Electrical Nodes: Cardiac
Tendons: Skeletal
Digestive Tract: Smooth
Arteries: Smooth
Extensors: Skeletal
Explanation:
Types of muscles. The three kinds of muscle in the body are the skeletal muscle, the smooth muscle, and the cardiac muscle. The skeletal muscles are attached to the bones and allow one to move at will. Because the skeletal muscles are mostly under your conscious control, they are sometimes called "voluntary" muscles. Smooth muscle lines the inside of such hollow organs as the digestive system, bladder, and arteries. Smooth muscles work automatically and are beyond your conscious control. They are referred to as "involuntary" muscles. Cardiac muscle is unique to the heart.
Although skeletal muscles seem to be under your control, a lot happens of which you are not aware. First of all, your posture, even when asleep, is controlled by skeletal muscles without your paying much attention to it. Your mouth, for instance, would flap open if your brain did not maintain a certain tension in your chewing muscles all the time. Your chin would spend a lot of time resting on your chest if your neck muscles didn't hold your head up. And your movements of all kinds would be pitifully awkward if your cerebellum did not coordinate all the muscles necessary to perform even the simplest actions. Just scratching your nose, for instance, requires dozens of muscles to move in exactly the right way at exactly the right time. You are truly "fearfully and wonderfully made."
We will now take a closer look at the other two types of muscles. Skeletal muscles can be attached to other muscles or to bones either directly or by a thin band of connective tissue called a tendon. Do not confuse this tendon with a ligament, which connects bone to bone and not muscle to bone. Two good examples of tendons can be found in the back of your legs. One is the Achilles tendon which attaches the calf muscle in the lower back part of your leg to your heel. The other tendons are on the back side of your knee, called the hamstrings. They serve to attach muscles in the upper back part of the leg to the bones of the lower leg and flex your knee. Locate these structures on your own leg.
The point at which a muscle is attached to the less movable part of the body is called the origin. The point at which a muscle is attached to the more movable part of the body is called the insertion. The biceps muscle of your upper arm is a good example of both these points. The biceps has its origin in your shoulder and its insertion in the bones of the forearm.
Skeletal muscles differ relative to their effect on the body. Those muscles that bend a joint are called flexors, and those muscles that straighten a joint are called extensors. Muscles always work in pairs, one opposing the action of the other. For instance, the upper arm has biceps on the front, which serves as the flexor. The muscle that opposes this motion and serves as the extensor of the forearm is the triceps, which is located on the back of the upper arm. When one muscle contracts, the other must relax. Study the diagram and then see if you can feel the alternating contraction of the biceps and triceps in your own upper arm as you bend and straighten it.
You should be careful to get enough exercise to keep your muscles in good shape. Muscles will grow larger and have better tone, which means they will always be slightly contracted, if they are used. If a person is lazy or is confined to a bed or wheelchair for a prolonged period of time, the muscles not being used will become smaller and lose their tone. This condition is called atrophy. A muscle atrophies at a rate of about 1% a day, so that it will lose a full third of its strength after a month of disuse. Disuse also causes bones to soften by losing their calcium. "Use it or lose it" is a solid maxim of physiology.
please help on these two pictures
Answer:
1.) D.
2.) A.
3.) C.
4.) Mutualism
5.) either parasitism or predator-prey
6) toxins
7) host
8)viruses
Describe what else a deer gets from plants. Explain how this matter is cycled between plants and the deer. Why is this cycle important to their survival? Provide a 3-5 sentence paragraph explanation.
Answer:
big blrrd pooh sheisty
Explanation:
yes
What are the two types of crust in the lithosphere?
Answer:
Oceanic crust and continental crust
Direction: Look at the images below. Explain what is so amusing or funny about these cartoons? How are these images related? What is the focus of these cartoons?
The inference that can be deduced from both pictures is that the pictures simply talk about climate change and its impact.
What is climate change?Climate change simply means the ice melting, ocean warming, rise in sea level and the acidification of oceans.
In this case, the inference that can be deduced from both pictures is that the pictures simply talk about climate change and its impact.
The first picture is about the Santa that was in the North Pole melting and the second picture is about the impact of climate change on sharks.
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Which best explains why it is difficult to classify protists?
Protists are difficult to characterize because of the great diversity of the kingdom. These organisms vary in body form, nutrition, and reproduction. They may be unicellular, colonial, or multicellular.
Why is it difficult to explain one certain way a protist reproduces?It is hard to demonstrate one certain way a protist reproduces :
Some protists use agamic reproduction at one stage in their life and then use gamic reproduction at another stage in their life.
Thus, Protists are difficult to characterize because of the great diversity of the kingdom.
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Which of the stream types had a statistically lower macroscopic invertebrate species diversity than the seasonal streams?.
Intermittent streams have a statistically lower macroscopic invertebrate species diversity than the seasonal streams.
What are Intermittent streams?Intermittent streams are ecosystems where water flow is stopped at least twice in a given period of time.
Intermittent streams exhibit biodiversity that is different from other types of streams because species can not be adapted.
Intermittent streams are ecosystems that can exhibit specific species which are not found in seasonal streams.
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Why is the percentage similarity in the gene always lower than the percentage similarity in protein.
Answer:
Synonyms in the genetic code exist and some species only use one synonym to get the same amino acid. The reason why the percentage is low in gene is because it does not involve a lot of processes compared to the proteins which undergo mRNA and tRNA to be coded as amino acids.
Explanation:
Which of the following best describes pollution discharged by cruise ships? a. cruise ships only discharge sewage and liquid wastes. b. cruise ships discharge sewage, solid, liquid, and air pollution. c. it is illegal for cruise ships to discharge untreated sewage in the ocean. d. cruise ships do not discharge oil or petroleum waste. please select the best answer from the choices provided a b c d
Answer:
b. Cruise ships discharge sewage, solid, liquid and air pollution
Explanation:
hope this helps
According to question option "B" which is Cruise ships discharge sewage, solid, liquid, and air pollution.
How the cruise ship results in a large amount of pollution?Due to the existence of oil sometimes there are oil leaks which are the production of liquid waste. In complement to this, there is a large amount of sewage and solid waste which are left untreated and released into the seawater.
Thus, option "B" is correct.
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What are the advantages and disadvantages of DNA Amplification??
Answer:
advantages
The DNA polymerase used in the PCR reaction is prone to errors and can lead to mutations in the fragment that is generated.
disadvantage
PCR involves repeated cycles of denaturation, amplification, and replication, in which segments of deoxyribonucleic acid (DNA) are continuously multiplied.
...
How do the features specific to animal and plant cells influence their function?
Answer:
They are different but have many similarities
Explanation:
for example a plant cell needs chloroplasts to he able to photosynthesize and I huge vacuole while animal cells have many small vaccoules and not chloroplasts
The _________ is the organ that is responsible for producing sperm.
Answer:
The testes
Explanation:
The testes are where sperm are produced. The testes are linked to the rest of the male reproductive organs by the vas deferens, which extends over the base of the pelvic bone or ilium, and wraps around to the ampulla, seminal vesicle, and prostate. The urethra then runs from the bladder through the pen is (it censored me). Don't worry, I want you to succeed :D
the remaining 16 elements must be?
answer explanation:
All group 16 elements combine with hydrogen to form hydrides. Acidic nature and bent shape decrease from water. The H-E bond length increases as the bond dissociation enthalpy decrease down the group. Thermal stability and reducing character also decreases because the H-E bond length increases down the group.
Which area of the stomach adjoins the small intestine?.
The pylorus is the answer. Hope this helps
ANSWER ASAP BEING TIMED
which of the following is an example of species diversity
the number of people with brown eyes in a community
the different types of fish in a coral reef
the different sizes of beaks among woodpeckers
two kittens with stripes and three kittens without stripes
Answer:
2
Explanation:
Which of these belongs to the four macromolecules of life.
lipids (fats & oil)
enzymes
fructose
oxygen
Answer:
lipids actually
Explanation:
because the four macromolecules of life are Macromolecules,
Carbohydrates, Proteins, and Lipid
In an example of pleiotropic genes, the flower color gene studied by Mendel affected ________ trait(s).
Answer:
two traits ,
Explanation:
In an example of pleiotropic genes, the flower color gene studied by Mendel affected a single trait.
Pleiotropy refers to a phenomenon where a single gene influences multiple, seemingly unrelated traits or characteristics in an organism. However, in this specific case of Mendel's flower color gene, it affected only one trait, which is the color of the flower.
Genes are the basic factors of inheritance. They are found in the DNA of all living organisms. They are responsible for transmitting genetic information from one generation to the next and play a crucial role in determining an organism's traits and characteristics.
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An advantage to mendel working with purebred plants is.
Answer:
He would get a expected gene in a plant, for example. Purebred tall pea plants would most likely give off more tall plants, with little runts.
It gives a certainty to what you're doing, and getting more sellable/ useable products.
What the weakness of DNA Extraction??
Please help me
Thank you
Answer:
the weakness potential is for invasion of individual privacy.
Explanation:
Because a person's DNA reveals so much information about their physical state, it is sensitive information that must be carefully guarded.
How do Antibodies help fight Infections/viruses and bacteria in our body
Answer:
The acquired immune system produces special molecules (known as antibodies) with the help of immune cell system that protects the body against a specific intruder. After the body has been exposed to the invader, cells called B lymphocytes produce antibodies. Antibodies remain in your child's system.
Environmental influences begin at birth and continue throughout life. please select the best answer from the choices provided t f
The statement environmental influences begin at birth and continue throughout life is definitely False.
What do you mean by Environment?Anything which is present in the surrounding of an organism is called its environment. The environment is surrounded by abiotic and biotic factors.
Environmental influences will not remain the same throughout life. If a human is affected by a natural disease, it will definitely be cured with medications. Environmental influences sometimes behave as genetic diseases, which stay long or sometimes endless.
Therefore, the statement environmental influences begin at birth and continue throughout life is definitely False.
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Answer:
false
Explanation:
Edge2022
High-fat diets can play a part in the development of __________. A. Breast, colon, and pancreatic cancer B. Ovarian, bone, and skin cancer C. Skin, brain, and prostate cancer D. Pancreatic, skin, and colon cancer Please select the best answer from the choices provided. A B C D.
High-fat diets can play a part in the development of breast, colon, and pancreatic cancer. So, the correct option is A.
What do you mean by High-fat diets?A High-fat diet may be defined as a diet consisting of at least 35% of total calories consumed from fats, both unsaturated and saturated fatty acids.
High fat can be acquired from eating excess fatty compounds. There are a number of foods that ensure excess body fat content. Such foods are meat, eggs, and even milk and products that come out of such foods.
Therefore, High-fat diets can play a part in the development of breast, colon, and pancreatic cancer.
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Answer:
The answer is A :)
Explanation:
What is the difference between a clade and a derived characteristic?
Answer:
A clade needs a derived characteristic. If mammals were a clade, their derived characteristic would be having hair.
Choose the best option to complete the sentence.
Scientists worried that cloned animals would age rapidly because their cells contain _____ as old as the individual they were cloned from.
a. cytoplasm
b. RNA
c. proteins
d. DNA
Answer:
D DNA
Explanation:
I took the test and got it right
Is the “extra finger” trait dominant or recessive? How do you know?
Answer:
It is recessive.
Explanation:
Having an extra finger, also known as polydactyly, is relatively rare, and people with polydactyly are unlikely to have children with the trait unless both the mother and father both have it, making it a recessive trait.