Once action potential is reached, the gated ion channel open to allow ___ to rush into a neuron
A) sodium ions
B) calcium ions
C) potassium ions
D) ATP
What is the first thing to look for when reviewing a
website with an ".edu" address?
A. Whether the site has been updated recently
B. Whether the site was written by professors
or students
C. Whether the content has been peer
reviewed
D. Whether the site is biased toward the
products or services the company provides
Answer: I think the answer is B.
Explanation:
Why are shadows longer in the morning and evening?
Make sure you give a full, detailed answer, not just one sentence.
Answer:
Shadows are longest in the early morning and late afternoon/early evening when the sun appears low in the sky. As the Earth rotates on its axis, the sun hits each location in the morning at an angle. ... As Earth continues to spin toward sunset, the increasing angle causes shadows to lengthen!
Explanation:
Hope this helps! Have a good day!.....or not...its up to you- <3
Please help me answer this question
Answer:
35 Phyla
Explanation:
This is somewhat debated but the correct answer is 35 as this is the most agreed upon number and is closest to the alternate numbers
Just need to identify this stuff
Answer:
ok!
Explanation:
Organic debris- PP
Aquatic plants- PP
Aquatic insects- primary consumer
Crayfish- primary consumer
Larger fish- secondary consumer
Small fish- secondary consumer
Osprey- tertiary consumer
Bald eagle- seconday consumer
Seagull- secondary consumer
Rodent- primary consumer
Seal- tertiary consumer
Nothern Harriet- secondary consumer
Plant seeds and roots- PP
hope this helps do telll me if any of them r wrong! :D
What are Sodium carbonate.Na2 CO3. Elements
Answer:There are 3 elements in sodium carbonate i. e. sodium(Na) , Carbon (C) , Oxygen (O) .
Explanation:
Pesticide resistance is increasing, Farmers in the US tost 7% of their crops to pests in the 1940s, over the 1980s and 1990s, the loss
was 13%, despite more pesticides being used. It is estimated that 500-1000 pests have developed a resistance to pesticides. Consider
the diagram showing the evolution of pesticide resistance. Select ALL of the statements that do NOT accurately describe the
mechanisms of pesticide resistance shown in the graphic.
A)Insects that are sensitive to the pesticide all die out after the first
application, leaving only the resistant insects in the population,
B)When insects are exposed to the pesticide, some will develop a mutationmaking it resistant. Only these insects survive in the next generation
C)The first generation has an insect with a gene responsible for resistance toa pesticide. This allows it to survive the pesticide application and reproduce
D)The insect with the pesticide resistance gene reproduces. Because these insects are more likely to survive pesticide application, insects with this
trait become more prominent in the population
E)As a population of insects is exposed to a pesticide, those susceptible to
the pesticide will die out of the population, leaving those with a resistance
to survive and reproduce, becoming more common in the population
The insect with the pesticide resistance gene reproduces, these insects are more likely to survive pesticide application hence insects with this trait become more prominent in the population
What is a pesticide?A pesticide refers to a chemical that is used to control the spread of pests in the farm.
The question is incomplete but I will help you the much I can. We know that organisms that have favorable traits live long enough to reproduce and pass on these favorable traits to the next generation. Therefore, the insect with the pesticide resistance gene reproduces. Because these insects are more likely to survive pesticide application, insects with this trait become more prominent in the population
Learn more about pesticide: https://brainly.com/question/1388366
4.
DNA: TAC CCA CCT GGA AAA CAC ATT
mRNA:
Amino acids:
HELP PLEASE
Horses and donkeys can breed and produce sterile offspring known as mules. Horses and donkeys remain separate species because of this hybrid sterility, which is a(n) Group of answer choices post-zygotic barrier to reproduction. sympatric barrier to reproduction. pre-zygotic barrier to reproduction. allopatric barrier to reproduction. good thing.
Answer:
The correct answer is ''post-zygotic barrier to reproduction''
Explanation:
Biological barriers prevent the exchange of genes between two or more populations, a postzygotic reproductive barrier reduces the survival or reproduction of hybrid offspring. In hybrid non-viability there is low survival of the hybrid, especially during embryonic stages. On the other hand, the sterility of the hybrid occurs when the fertilized egg develops into a healthy but sterile adult. Segregation of aneuploid gametes during meiosis, different gene associations occur on the chromosomes of the parents.
Hypothermia _____. results from excess sun exposure causes a high, infectious fever results from high body temperature results from low body temperature
Answer: it comes from the results from low body temperature
Explanation:
In the carbon cycle, all animals must consume other organisms because
A. they cannot absorb carbon from the air.
B plants are better at absorbing carbon from the air than animals.
C they can only absorb carbon from the air at high temperatures.
sunlight is required to absorb carbon from the air, and some animals live
underground
Answer:
b plants are better at absorbing carbon from the aur than animals
What is a nerve impulse?
Answer:
A signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes.
Explanation:
Answer:a signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes.
Explanation:
PLEASE PLEASE PLEASE HELP
Which is NOT one of the four fundamental forces in the universe?
Electromagnetism
Strong
Gravity
Mass
Answer:
Mass
Explanation:
From walking on the street, to launching a rocket into space, to sticking a magnet on your refrigerator, physical forces are acting all around us. But all the forces that we experience every day (and many that we don't realize we experience every day) can be whittled down to just four fundamental forces:
Gravity.
The weak force.
Electromagnetism.
The strong force.
These are called the four fundamental forces of nature, and they govern everything that happens in the universe.
what are the effects of natural hazards?
Explanation:
effect of naqtural had aaira xhina bey m
What is the percentage of the offspring?!
Answer:
50% AO, 50% BO
Explanation:
there are 2/4 that are of AO blood, and 2/4 are of BO blood.
2/4 is equivalent to 50%
I will give brain to correct answer!
When guard cells are full, they bulge. This increases the
size of the gap between them and opens the hole in the
leaf.
Which object is the best model of a guard cell?
A.) Straw
B.) Garden hose
C.) Water Balloon
D.) Strainer
The best model of a guard cell is Water Balloon. Thus, option "C" is the correct answer.
What is Transpiration?Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapor and is released to the atmosphere.
Transpiration is essentially evaporation of water from plant leaves. Transpiration is important because water is needed for photosynthesis and because water cools a plant off.
Thus, option "C" is the correct answer.
To learn more about transpiration click here:
https://brainly.com/question/2951421
#SPJ2
Tabacco is
a)created in labratories
b)obtained from plants
c)an animal by product
d) free of harmful componets
Answer:
B.obtained from plants
Explanation: Tobacco farmers plant tobacco plants and harvest them and that is how we obtained tobacco.
What happens during synapsis?
A. gene recombination
B. DNA replicates
C. the cell divides
D. centrioles move to the poles
Answer:
C
Explanation:
please help asap no links
Answer:
I'm really sorry but I don't know the answer
Only about _____% of the water on Earth is potable (suitable for humans to drink).
Of this water that is potable, only about 30% is in the form of ground water.
On the surface of the planet only ______% of water is freshwater in the forms of lakes and streams.
Areas with low availability of drinking water are said to be water ______________.
Ideas to reduce water stress in preparation for the anticipated shortages include:
→ _____________ pollution in rivers and lakes
→ using water conserving technology
→ perfecting desalination plants to process undrinkable ________ water into drinkable fresh water
Answer:
only about 0.3%and the plant is 99.7 and the 3 one is 0.3 unattainable.
Explanation i hope the
All organisms naturally release carbon dioxide as a product of respiration. Why was global climate change not an issue in the past as it is today ?
Answer:
Because of humans
Explanation:
We have polluted the Earth so much. There are tons of plastic in the ocean and ice caps are melting faster and faster. Smoke from factories and vehicles are destroying the ozone layer making it even hotter.
hii! i’ll give brainliest pls help
Answer:
This looks like an earthquake
Explanation:
There doesn’t seem to be very much water present in the image which would be the cause for the rest of them
Hope this helps
Answer:
Earthquake
Explanation:
First off I wouldn't say landslide because if it was a landslide in more than likely would have cracked the concrete on the floor that the people are standing on and there would be more of a mess than what is show in the picture. Next I wouldn't say tsunami depending on how frequent this disaster was, if it was a tsunami more than likely most of that rubbish would have been soaked with water in other things that were in the water as well and I wouldn't say flood either because once again nothing is soaked with water with in that picture not even the concrete that the people are standing on so I say that the most reasonable answer would be earthquake due to them being know for destroying buildings alot.
Human eggs mature one by one after puberty True or False
During which days of the menstrual cycle does
the level of FSH increase? What happens to the
follicle during this time?
Answer:
a menstrual cycle is considered to begin on the first day of the period the average cycle is 28 days long
3) What are the “happy” neurotransmitters our gut biome can make:
a) Serotonin and dopamine
b) Cortisol and epinephrine
c) Serotonin and cortisol
d) Epinephrine and dopamine
What types of food molecules make up chicken? (Carbs, Proteins, and/or Fats?)
no links!!
but its fats right??
Answer:
Fats
Explanation:
Chicken contains many different amino acids with different R-groups. In particular, chicken contains a large number of Tryptophan amino acids, which are amino acids that contain the side chain known as “indole”.
The type of food molecules that make up chicken is Proteins. It generally contains about 20% of proteins.
What do you mean by Food molecules?Food molecules are those which give energy to living organisms and contain chemicals that are required for the growth and repair of cells and their functions in the body of living organisms.
Proteins are the polymers of amino acids, which are linked via peptide bonds. The side chains of amino acids are varied from one to another. These side chains provide stability to the amino acid sequence. Mostly, the side chain of tryptophan and arginine gives the makeup to the food molecules of chicken.
Therefore, the type of food molecules that make up chicken is Proteins.
To learn more about Proteins, refer to the link:
https://brainly.com/question/1093077
Why do you think Europeans—and especially the English—are most affected by asthma?
Answer: Asthma is one of the most frequent chronic conditions in Europe, affecting more than 30 million Europeans – a number that is still growing.
"At some stage in the future almost half of the population may suffer from an allergic disease and asthma will be a considerable proportion of this," said Nikolaos Papadopoulos, professor of allergy and pediatric allergy at the University of Athens, in an interview. He added that it is also a global phenomenon.
Asthma is a chronic disease of the airways that makes breathing difficult. An asthma attack inflames and narrows the airways that carry oxygen to the lungs, leading to coughing, wheezing, shortness of breath, and chest tightness. Its prevalence has been linked to industrial development.
Explanation: there you go UwU
Explain how the super bug was created
Answer:
A superbug refers to a germ that has formed resistance to multiple drugs that once treated the infection caused by the germ. The term “superbug” was developed by social media. While any germ may become a superbug, bacterial and fungal strains that routinely infect humans, animals, and crops are most likely to do so.
Explanation:
which statement best describes the reaction force?
Answer:
I believe the awnser is; The reaction force is the force of the ball away from the racket
PLZ ANSWER!!!!!!!! PLZ ANSWER