For a neuron with an initial membrane potential at -70 mV, an increase in the movement of potassium ions out of that neuron's cytoplasm would result in the
Answers
The potassium ions are positively charged(cations) if the charge is -70mV the outflow of cations will cause a decrease in the potential. The potential will become lower than -70mV.
The given condition of an increase in the movement of potassium ions out of that neuron's cytoplasm would result in the hyperpolarization of the neuron.
Hyperpolarization is a change in a cell's membrane potential becomes more negative at a particular spot on the neuron's membrane
A hyperpolarization is an event or stage that takes place when some potassium channels remain open and sodium channels reset.The sodium-potassium pump keeps the concentrations of Na+ and K+ at constant disequilibrium to set the membrane potential of neurons.Increased potassium movement leads to more potassium ions out of that neuron's cytoplasm. It can be seen as a slight dip following the spike.Thus, the correct answer would be the hyperpolarization of the neuron.
Learn more about Depolarization:
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A good example of a natural phenomena causing geographical isolation is the
-Mississippi River
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-Grand Canyon
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Answer:A
Explanation:because
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Answer:
Centrioles play a notable role in cell division. ... These spindle fibers act as guides for the alignment of the chromosomes as they separate later during the process of cell division. Though centrioles play a role in the mitosis of animal cells, plant cells are able to reproduce without them.
Explanation:
MOST BRAINLIEST PLEASE (PRESS THE CROWN ALL THE WAY AT THE BOTTOM OF MY ANSWER)
Which statement best describes homeostasis in a cell?
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D. Cells do not maintain homeostasis with their external environments.
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Answer:
I believe the answer is A. The cell is in an equilibrium inside and out when it goes through homeostasis.
Explanation:
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Answer:
O2 contains only one type of atom.
Explanation:
What is the best definition of natural selection?
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Answer:
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
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Students at Speake Elementary are studying how renewable energy could be used to supply their town with
electricity. Which of the following energy sources could be used to meet the town's renewable energy needs?
O A) natural gas
OB) coal
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O D) petroleum
Please help
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-It’s safe, harmless, natural and of course, renewable. Electricity and power is harnessed via sunlight.
In sexual reproduction, how many genes does an offspring receive for each trait?
Answers
Answer:
__________
Explanation:
In sexually reproducing organisms, each parent contributes half of the genes acquired (at random) by the offspring. Individuals have two of each chromosome and hence two alleles of each gene, one acquired from each parent.
Answer:
Each parents gives of half of the genes acquired by the offspring. 46 chromosomes or 23 pairs.
Explanation:
". Each gamete contains half the number of chromosomes, or genetic material, of the organism. So, each sperm contains 50% of the father's genes and each egg contains 50% of the mother's genes. This makes gametes different from other cells in the body. A basic human body cell contains 46 chromosomes, but the egg and sperm only contain half that number, or 23 chromosomes. Why? Well, when an egg and a sperm come together, which is a process called fertilization, they contribute 23 chromosomes each. Add 23 and 23 together, and you get one happy 46-chromosome-containing fertilized egg that can now develop into a new human.
Meiosis
Gametes are produced by a type of cell division known as meiosis. It's meiosis that reduces the number of chromosomes in the cell down to 23. It's also meiosis that makes gametes genetically different from one another. After the cell division takes place, each sperm and each egg has its own unique genetic makeup. In other words, meiosis can be thanked for giving Junior his cute mismatched ears. "
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A. mutation that shortens the life span of an animal
B. mutation that is corrected by cell processes before proteins are produced
C. mutation that increases the hunting ability of an animal
D. mutation that results in the production of the original protein
Answers
Answer:
C
Explanation:
why would it not be
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A.
Bacteria become resistant to antibiotics.
B.
Dog fur becomes thicker in the winter.
C.
Turtles become male or female based on incubation temperature.
D.
Humans become immune to a certain illness after vaccination.
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Answer: possibly A
Explanation: B an C are not it because they are more like mutations. D humans don’t always become immune.
Most pond organisms live in shallow water because
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B. the water is cleaner.
C. there is more oxygen.
D. there is less shelter.
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Answer:
it is oxygen
Explanation:
i aced biology this should be the answer when i did my exams
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t or f
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Answer:f
Explanation:
Answer:
True
Explanation:
Just took test and the one above was wrong.
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Answer:
gender? or gender fluid? or is there more then one gender? ehat exactly is ur question lol..
Explanation:
What is the answer here?
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ASAP!!!!!!! I NEED HELP
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Answer:
Mitosis is the cell cycle for somatic cells which are diploid (2n).
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Explanation:
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Answer:
probably water wheels
Explanation:
Which process is involved in the formation of a galaxy?
A.
The angular momentum of the spin of the galaxy causes the material in the clouds to flatten and form a disk.
B.
Several smaller galaxies were formed when they broke away from a large galaxy.
C.
The nucleus is obscured because of the light emitted by a supermassive black hole.
D.
Gradual disaggregation of cloud fragments formed many smaller galaxies.
E.
The dust found in the interstellar medium aggregates to form the disk.
Answers
Answer:
E or "The dust found in the interstellar medium aggregates to form the disk."
Explanation:
Used G00GLE, and it said "One says that galaxies were born when vast clouds of gas and dust collapsed under their own gravitational pull, allowing stars to form."
(couldn't use the search engine's actual name)
Answer:
The correct answer would be:
A.
The angular momentum of the spin of the galaxy causes the material in the clouds to flatten and form a disk.
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Have a nice day!
Can someone help me out with this? In pea plants, the allele for green seeds (G) is dominant over the allele for yellow seeds (g). • Parent 1: homo-zygous for green seeds • Parent 2: homo-zygous for yellow seeds. • What are the gametes each parent plant will produce? Parent 1: Parent 2:
Answers
Answer:
Parent 1: G gametes
Parent 2: g gametes
Explanation:
This question involves a single gene coding for seed color in pea plants. The allele for green seeds (G) is dominant over the allele for yellow seeds (g). This means that a plant that is heterozygous (Gg) will possess green seeds.
If two parents are about to cross in such a way that Parent 1 is homo-zygous for green seeds i.e. GG, while Parent 2 is homo-zygous for yellow seeds i.e. gg.
- Parent 1 (GG) will produce only "G" gametes
- Parent 2 (gg) will produce only "g" gametes
PHYSICAL SCIENCE PLEASE HELP !! DUE TODAY AT 11
WILL GIVE BRAINLY / BRAINLIEST !!
Answers
Don't forget to give brainliest! Ok so on number 1. it has 2 significant digit, number 2. has 1 significant digit, number 3. has 1 significant digit and number 4 has no significant digits. You will only know the answer by looking at the mathematical expressions though. Hope that helped. :)
What type of cat is a house cat
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Answer:
Explanation:Answer. Domesticated cats all come from wildcats called Felis silvestris lybica that originated in the Fertile Crescent in the Near East Neolithic period and in ancient Egypt in the Classical period.
Answer:
:)
Explanation:
Domesticated cats can be house cats
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b. Glucose d. Soil
Answers
Answer: A. Chlorophyll c. Roots
Answer:
chlorophyll
Explanation:
i did this and got it right
Before cells divide, they must replicate their entire genome. Explain why
replication of the genome prior to cell division is important.
Answers
Each time a cell divides into two daughter cells, its full genome is duplicated; for humans and other complex organisms, this duplication occurs in the nucleus. This minimizes the incidence of errors (mutations) that may greatly affect the resulting organism or its offspring. ...
HOPE THIS HELPED <3
Answer:
In order for all of the cells in your body to maintain a full genome, each cell must replicate its DNA before it divides so that a full genome can be allotted to each of its offspring cells. If DNA replication did not take place fully, or at all, the offspring cells would be missing some or all of the genome.
Explanation:
Help please! It’s due at 12 and it’s 11:25
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Answer:
c
Explanation:
A weather tower receives no radar signal in an area.
Which type of weather are you most likely to see in the area?
A. Rain
B. A tornado
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D. Sunshine
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The function or job of the nervous system is: *
a. to move or transport substances around the body
b. to receive information and control functions
c. to break apart food to get nutrients for the body
d. to exchange gases
Answers
Answer:
B
Explanation:
According to my knowledge the nervous system receives and transport feelings from different parts of our body to the brain and the opposite.
Hope it's helpful....
What make a dwarf planet different from a planet?
A.
Dwarf planets are usually smaller than the moons of a planet.
B.
Unlike planets, dwarf planets do not have natural satellites.
C.
Planets have cleared their orbital paths of debris, while dwarf planets have not.
D.
Planets have a nearly spherical shape, while dwarf planets are irregular in shape.
E.
Dwarf planets do not orbit in the same plane as the other planets.
Answers
Answer:
Dwarf planets are usually smaller than the moons of a planet.
Explanation:
Answer: C
Explanation: dwarf planets lack the gravitational forces needed to pull in and accumulate all of the material found in their orbits.
edmentum-2022
PLEASE HELP!!
The process, below, does what to benefit a cell? *
Prevents osmosis from causing a cell to shrivel or rupture.
Allows white blood cells to tag pathogens with antibodies.
Decreases the necessary activation energy to speed up the chemical reaction.
Increases the necessary activation energy to slow down the chemical reaction.
Answers
Answer:
Decreases the necessary activation energy to speed up the chemical reaction.
Explanation:
This picture shows substrates binding to the activation site of an enzyme causing the enzyme to change shape and therfore speeds up the chemical reaction.
The inheritance of genetic traits from parents to children follows predictable rules. Knowing that each parent contributes genes equally to each child, what determines an inherited trait such as eye color? *
A. Only the interaction between dominant genes.
B. Only the interaction between recessive genes.
C. The interaction between dominant and recessive genes.
D. The interaction between dominant and recessive genes does not determine inherited traits.
Answers
Answer:
c is right answer.
The interaction between dominant and recessive genes
Explanation:
Eye colour and blood groups are both examples of dominant/recessive gene relationships.
Eye colour
The allele for brown eyes (B) is dominant over the allele for blue eyes (b). So, if you have one allele for brown eyes and one allele for blue eyes (Bb), your eyes will be brown. (This is also the case if you have two alleles for brown eyes, BB.) However, if both alleles are for the recessive trait (in this case, blue eyes, bb) you will inherit blue eyes.
Describe the growing environmental concerns due to Radioactive Dust
Answers
Answer: There are many concerns but some of the most important one's are Air pollution(Fire,Dust) and water pollution.
Explanation: