Answer:
The sodium potassium pump. The resting potential of the neuron is -70mV due to the fact that more sodium ions are inside the cell than potassium ions. The resting potential is a result of different concentrations inside and outside the neuron.
That's all that I remember hope it helps
Describe how the availability of these genetic test might affect the frequency of genetic diseases in individuals and populations
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Genetic sequencing allows us to determine the exact location of the nucleotides in the DNA molecule, which means that we can "select" certain traits (such as an aversion to a disease
Ở người, alen A nằm trên NST X quy định máu đông bình thường là trội hoàn toàn so với alen a quy định mù màu. Một cặp vợ chồng sinh con, người vợ bình thường nhưng người chồng bị mù màu. Biết không xảy ra đột biến. Theo lí thuyết, tỉ lệ sinh con bị bệnh chiếm bao nhiêu phần trăm?
Answer:
Explanation:
có 50% khả năng con cái mắc bệnh
Fur color is a trait controlled by a dominant over recessive gene. The fur color is either brown or black.
Two brown mice and produce 12 offspring. Three (25%) of the offspring produced are black fur and nine (75%) have brown fur.
Based on the above data, answer the follow questions.
State which fur color is dominant (1 pt each).
State which fur color is recessive (1 pt each).
What is the genotype for the black fur (1 pt )
What is the genotypes for the brown fur (2 pts )
Answer:
Dominant: Brown colored fur
Recessive: Black colored fur
Black Fur Genotype: bb
Brown Fur Genotype: BB, Bb, or bB
Explanation:
B = Brown
b = Black
when a solvent equally disperses throughout a solution what type of transport is this
Answer:
Diffusion
Explanation:
Diffusion is the homeostasis of solvents
Why do we shiver when it is cold?
A. It is the brain stimulating the person to move to a warmer location.
B. It is an involuntary reaction that does not actually help our body.
C. The rapid twitching of the muscles generates heat.
D. It is a side-effect of the pancreas signaling to the brain that it is losing heat.
Answer:
C. The rapid twitching of the muscles generates heat.
Explanation:
When the body detects that it is cold, it will shiver in an attempt to create heat.
The rapid loosening and tightening of the muscles in this process creates heat.
This is a involuntary and natural response that helps return the body back to homeostasis and maintain a normal temperature.
So, the correct answer is C. The rapid twitching of the muscles generates heat.
Answer:
C. The rapid twitching of the muscles generates heat.
Explanation:
When someone feels cold, tiny sensors in your skin send messages to your brain telling you that you need to warm up.
Determine which word best describes the function of
hormones.
A. Protein
B. Molecule
C. Growth
D. Communication
Answer:
d
Explanation:
Se podría afirmar que las aletas anteriores de las ballenas se pueden comparar con estructuras similares de organismos terrestres?
Answer:
Las aletas de una ballena y el brazo de un hombre son un ejemplo de órganos homólogos, porque la estructura ósea de las aletas de una ballena es parecida (homóloga) a la estructura ósea de nuestros brazos, debido a que ambas proceden del mismo origen embrionario pero se han modificado para desempeñar funciones ...
Identify the correct bonding between nitrogen bases in DNA molecule from given pair.
a. A=C
b. A=G
c. A=U
d. A=T
Answer:
It's not A or B. I hope that helps you a bit.
Explanation:
Answer:
A=T is the correct bonding between nitrogen bases in DNA molecule
Jenna's pencil fell off of her desk and she quickly reached down to catch it before it hit the ground. In the process the
Answer:
The complete question with its options is:
Jenna's pencil fell off of her desk and she quickly reached down to catch it before it hit the ground. In the process, the (1)_____ system first recognized the falling pencil. It sent signals to the (2)______ system, which then moved the components of the(3) _____ system in order to catch the pencil.
Options:
(1) 1. Nervous 2. Muscular 3. Skeletal
(2) 1. Nervous 2. Muscular 3. Skeletal
(3) 1. Skeletal 2. Digestive 3. Nervous
The answer is:Jenna's pencil fell off of her desk and she quickly reached down to catch it before it hit the ground. In the process, the (1) Nervous system first recognized the falling pencil. It sent signals to the (2) Muscular system, which then moved the components of the(3) Skeletal system in order to catch the pencil.
Explanation:
The nervous system receives the signal that the pencil is falling. In other words, Jenna sees or feels that the pencil falls, so the senses send a signal to the nervous system to produce a response. We call this a stimuli. Once that the nervous system receives and processes the stimuli, it elaborates an answer. The answer is to send a signal to a group of muscles that will move certain bones to make the movement that will catch the pencil. The muscles are from the muscular system, and they are attached to the bones, which are part of the skeletal system. When the muscles contract, they move the bones and make the movement possible.
Khi nói về các hoocmôn tuyến tụy, phát biểu nào sau đây sai?
Explanation:
The exocrine component of the pancreas is the pancreatic islets. The endocrine cell of the pancreas produces hormone insulin. The major hormones released by the endocrine gland inside the pancreatic are glucose and glucagon, which control blood glucose levels, and cortisol, which inhibits insulin and glucagon production.
is an example of the degeneracy of the genetic code.
A.An amino acid has more than one codon.
B.Each codon specifies more than one amino acid
C.The first two bases in the CCA terminus of tRNA specify an amino acid.
D.The genetic code in mRNA is a triplet of bases.
7. Why are people from Pacific Island
nations likely to become environmental
refugees?
A. Because of sea level rise due to
climate change
B. Because the fish populations they
survive on are diminishing
C. Because they ve degraded their
Islands and can no longer grow food
D. Because large factories there have
contaminated the soil, increasing cancers
and other health problems
Answer:
For these migrants, economic and cultural reasons were given as motivations for settling abroad. About 37 percent leave to find work, 26 percent for education opportunities and some 18 percent give climate change as their reasons for migration.
Which statement best describes an increase in biotic potential?
O Deer increase their rate of reproduction on an island.
Rabbit population increases in a grassland biome.
O Lions have larger broods and decrease hunting.
Seals have more offspring when food is scarce.
Answer:
i picked deer and rabbit and got it wrong ??? i need help
Explanation:
A researcher is studying three wolf packs that hunt in the same area. The first pack preferentially kills mature, healthy moose; the second pack preferentially kills sick, old moose; and the third pack tends to kill an equal number of healthy and sick moose. Which pack likely plays the greatest role in determining the birth rate of the moose population
Answer:
The correct answer is - the pack that preferentially kills mature, healthy moose.
Explanation:
The birth rate is the number of individuals born in a population in a particular amount of time period. The birth rate can be determined by the individual born in a particular time period and that depends on how many healthy and viable individuals in a population can reproduce and produce new individuals.
Old and sicks are not the ones who can actively participate in reproduction and, however, if the number of healthy and mature individuals are killed there would be fewer newborns in the population.
Thus, the correct answer is the pack that preferentially kills mature, healthy moose.
The alpha male and female of a wolf pack produce offspring, but the rest of the individuals in the pack do not. This is an example of
O biotic potential
O group behavior
O intraspecific competition
O interspecific competition
Answer:
group behavior
Explanation:
The production of offsprings of males and females in the group is an example of the group behavior of the pack of wolves. This is best seen in lions and another big cat family. These acts are directly and indirectly inflected by the group decisions.Answer: group behavior
Explanation:
After Frida stops exercising, she continues to breathe heavily. What is most likely occurring in her body?
a. Heavy breathing during exercise has produced an oxygen surplus in her muscles. This oxygen is being transported to her lungs. This is a result of aerobic respiration.
b. Heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. Lactate is being transported to her liver. This is a result of aerobic respiration.
c. Strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
d. Strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
Answer:
D. Strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. This is a result of anaerobic respiration.
Explanation:
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Using complete sentences, explain how proximity to major rivers influenced the location of early cities.
Answer:
Locations along rivers meant faster travel upstream and downstream to rule territories. The city became the place where the ruler or rulers lived together in a stationary spot. The city's location along early rivers encouraged stronger government, which in turn encouraged stronger cities.
Rivers are one of the most crucial resources that played a major role in the development in ancient times. It led to river valley civilization that influenced the location and kingdoms.
What is river valley civilization?The river valley civilization was one of the most important events that led to the establishment of many kingdoms and regions. The proximity to the river banks influenced many factors.
The cities located on the riverbanks have greater development in services including import, export, travel, agriculture, accessibility, etc. This allowed the people to practice agriculture on a large scale due to the availability of the irrigation system.
The river banks allowed the cities to grow as major trade centers and allowed downstream and upstream travel easier. This also led to the emergence of strong government systems.
Therefore, the proximity to major rivers led to river valley civilization.
Learn more about river valley civilization here:
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which type of motion dose not change the amino produced
Answer:
silent mutation. have a great day! :)
Look Up Jaire Alexander aint he fine?
Answer:
maybe jk he is
Explanation:
Match the following STDs with their descriptions. 1. can cause sores, rashes, dementia, or blindness gonorrhea 2. can cause burning urination and infertility chlamydia 3. similar to gonorrhea but more likely to be carried unknowingly syphilis 4. parasitic STD causing genital irritation and mild discharge 5 crabs 5. pubic lice that cause itching trichomoniasis 6. untreatable STD causing periodic outbreaks of blisters 1 HPV 7. can cause genital warts or cervical cancer 6 genital herpes
Answer:
1. Syphilis
2. Gonorrhea
3. Chlamydia
4. Trichomoniasis
5. Crabs
6. Genital herpes
7. HPV
Explanation:
STD is an acronym for sexually transmitted disease and it can be defined as diseases that are easily transmissible or contractable from another person through sexual intercourse. Thus, STD spread from an infected person to an uninfected person while engaging in unprotected sexual intercourse. Some examples of STDs are gonorrhea, chlamydia, syphilis, HIV, HPV, etc.
Generally, contracting STDs has a detrimental effect to a patient because it causes an opening (break) or sore in the body of the carrier (patient) and as such making them vulnerable to diseases that are spread through bodily fluids e.g human immunodeficiency virus (HIV), Hepatitis, staphylococcus, AIDS, etc.
1. Syphilis: can cause sores, rashes, dementia, or blindness.
2. Gonorrhea: can cause burning urination and infertility
3. Chlamydia: similar to gonorrhea but more likely to be carried unknowingly
4. Trichomoniasis: parasitic STD causing genital irritation and mild discharge.
5. Crabs: pubic lice that cause itching.
6. Genital herpes: untreatable STD causing periodic outbreaks of blisters
7. HPV: can cause genital warts or cervical cancer. HPV is an abbreviation for human papillomavirus and it's a virus that causes most common sexually transmitted infection, giving rise to skin or mucous membrane growths (warts).
Answer:
1) syphilis
2) gonorrhea
3) chlamydia
4) trichomoniasis
5) crabs
6) genital herpes
7) HPV
Uplift and formation of a mountain range divide a freshwater snail species into two isolated populations. Erosion eventually lowers the mountain range and brings the two populations together again, but when they mate, the resulting hybrids all produce sterile young. This scenario is an example of
Answer:
Sympatric speciation
Explanation:
Sympatric speciation is the evolution of a new species from a surviving ancestral species while both continue to inhabit the same geographic region.
ASAP
In multicellular organisms, what do groups of cells form?
A. Prokaryotes
B. Homeostasis
C. Tissues and organs
D. Cell walls
Answer:
Letter c
Explanation:
tissues and organs
What are australopiths, how many groups are there, and what do they date to? Which one is derived and therefore not part of our direct evolutionary line?
Answer and Explanation:
Australopithecines were a group of ancestral animals that were very similar to chimpanzees, but had common characteristics with humans, which is something normal, when we think that these animals are one of the ancestors of human beings. These animals walked on two legs, like humans, but they had very small brains and teeth that were bigger and heavier than those of humans. There were eight groups of australopithecines and they date from 8 million to 1.5 million years ago.
Among these groups, it is believed that Australopithecus afarensis is a group that has no direct ancestry with humans, being a group that did not thrive during the evolutionary process.
The presence of a negative allosteric effector on an allosteric protein would: a. cause a shift to the left in the sigmoidal curve. b. increase the number of R conformations. c. decrease the cooperativity of the substrate. d. raise the apparent value of the equilibrium constant, L. e. increase the likelihood of the binding of S.
Answer:
d. raise the apparent value of the equilibrium constant, L.
Explanation:
Allosteric regulation is a type of regulation of an enzyme by binding an effector molecule at a site other than the protein's active site (i.e., the allosteric site). The equilibrium constant (L) refers to the transition between two forms of an allosteric protein in absence of a ligand. The properties of allosteric enzymes are explained by conformational changes associated with a low-affinity tense (T) state, or a high-affinity relaxed (R) state. Negative allosteric effectors are molecules that bind to the allosteric site on an enzyme in order to decrease its activity, thereby leading the enzyme to a low activity T state and thus increasing the value of the equilibrium constant.
Tami is doing experiments on three different unknown solids. She understands that treating them in different manners might result in changes to their bonding, and these changes may help her identify unknowns. She treats samples of each solid four different ways: heating them, letting them cool, shining bright light on them, and hitting them once with a hammer. The chart shows what happened to each sample.
Based on how they each acted in the trials, which substance(s) would most likely be metallic?
A and B
B
C
A and C
Helpppppp please!!! How do membrane proteins contribute to the membrane potential?
Answer:
the answer is B
Explanation:
the answer is b
Which molecules in your body do
not contain carbon atoms?
Genes, which are made of DNA
Proteins
Sugars
Water
I'm pretty sure its water
Which of the following best defines gene flow?
the sum of all genetic traits in a population's individuals at a given time any movement of genes from one population to another any movement of organisms from one environment to another the random change in the frequency of an allele in a population
Gene flow — also called migration — is any movement of individuals, and/or the genetic material they carry, from one population to another. Gene flow includes lots of different kinds of events, such as pollen being blown to a new destination or people moving to new cities or countries.
Answer: any movement of genes from one population to another.
Explanation: :)
Before you make a hypothesis—your best guess at a solution—what must you do?
Group of answer choices
Run an experiment
Make observations
Form a theory
Draw conclusions
Answer:
make observations .
Explanation:
Collect as many observations about a topic or problem as you can.
Evaluate these observations and look for possible causes of the problem.
Create a list of possible explanations that you might want to explore.
draw a flow chart showing the spread of disease.
Answer:
hello
Explanation:
can you please tell me which disease
