The process that describes the course of the evolutionary process is natural selection. The methods that alter allele frequencies throughout time include natural selection, genetic drift, and gene flow.
What connection does gene frequency have to evolution?Sewell Wright's synthetic theory of evolution is an effort to explain evolution in terms of variations in gene frequencies. According to this hypothesis, a species evolves when its gene frequencies vary and it advances to a greater level of adaptability for a particular ecological niche.
What are the four evolutionary processes?The four main driving forces of evolution are mutation, natural selection, genetic drift, gene flow, and gene flow. New genetic variety is produced via mutation in the gene pool. Allele frequencies in a gene pool are changed via genetic drift and gene flow.
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Which answer best identifies the difference between the two types of cellular transport? (B.4B) Question 3 options: Active transport uses ATP to move molecules against the concentration gradient. Facilitated diffusion uses ATP to move molecules down the concentration gradient. Diffusion move molecules through the cell membrane from an area of low to high concentration. Active transport uses ATP to move molecules against the concentration gradient. Active transport uses ATP to move molecules against the concentration gradient. Facilitated diffusion does not need ATP, but uses protein channels to move molecules down the concentration gradient. Facilitated diffusion does not need ATP, but uses protein channels to move molecules down the concentration gradient. Active transport uses ATP to move molecules down the concentration gradient.
Answer:
Active transport uses ATP to move molecules against the concentration gradient.Facilitated diffusion does not need ATP, but uses protein channels to move molecules down the concentration gradientExplanation:
Transmembrane proteins, among others, are the channel proteins and the carrier proteins, and they are in charge of substances transport into or out of the cell.
Channel proteins are involved in passive transport, and facilitated diffusion is a kind of passive transport. Facilitated diffusion transport hydrophilic molecules that can not freely move through the membrane. Channel proteins carry them from one side to the other of the membrane, following the electrochemical gradient, so they do not need energy to carry in or out substances. Uncharged molecules´ movement depends on concentration gradients, while ions´ movement depends on an electrochemical gradient.Carrier proteins are involved in active transport. Active transport acts against the electrochemical gradient, so it does need the energy to transport substances. It carries molecules from a low concentration side to a high concentration side. The used energy comes from ATP (Na-K bomb) or the membrane´s electric potential.
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Which of the following stars is likely to be the dimmest? The hottest star The least massive star The star that is blue in color The star with the fastest fusion rate
Answer: 90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on eight comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you.
Explanation: btw its B the least massive star
This cell will have long thin branches that can reach out to other cells, allowing the cells
to (send signals) be affected by and affect this cell.
what cell is this?
Answer:
Nerve cells
Explanation:
Part of the nervous system which is capable of communicating messages to others cells via electrical signals
Alec saw footage of a landslide on the news. He saw rocks falling from the side of a mountain, with some of them smashing into each other and breaking apart. Select two of the processes Alec witnessed.
A
cementing
B
compacting
C
erosion
D
sedimentation
E
weathering
F
deposition
PLEASE DO THIS WITH YOUR OWN WORDS 20 POINTS
Explain how Earth's atmosphere has changed over time.
Answer:
It describes changes in the state of the atmosphere over time scales ranging from decades to millions of years. These changes can be caused by processes inside the Earth, forces from outside (e.g. variations in sunlight intensity) or, more recently, human activities.
Explanation:
brainliest or 5 stars and heart
What did the first cells form from? What kind of cells where
they?
Answer:
The first cells were most likely primitive prokaryotic-like cells, even more simplistic than these E. coli bacteria. The first cells were probably no more than organic compounds, such as a simplistic RNA, surrounded by a membrane.
Answer:
I agree with xXMaryaXx. I'm pretty sure she has the answer you are looking for :)
Explanation:
Create a meaningful sentence using both words listed in each sentence. Nucleus, chromosome(s), Gene, trai,t Inherit, DNA
Help pls
All three
Ignore this Vicksburg click command FMCG icon con claim
If the population runs out of food after 6 hours, what would most likely happen to the graph line between 8 and 10 hours?
It would level off.
It would decline.
It would continue to increase.
the functions of stem
How many lights were used...
Answer:b
Explanation:
Using the information in the table below, determine the amino acid
sequence
that is coded for by this mRNA sequence.
Answer:
You just have to look at the letters and figure it out. It's pretty simple
Explanation:
10. Using the DNA Code below, create mRNA and the tRNA codes:
ACG ACG G C ATTAC AG GTA ACG CC
Answer:
mRNA - UGC UGC C G UAAUG UC CAU UGC GG
Explanation:
tRNA - ACG ACG G C AUUAC AG GUA ACG CC
What is the main difference between a food chain and a food web
A. There is no difference between them
B. The food chain is a part of the food web but with only one producer, primary consumer, and secondary consumers
C. The food web is a part of the diverse food chain
D. The food chain has land animals and the food web has aquatic animals
(No links)
Explain how colonial organisms may have evolved into eukaryotic cells.
Answer:
The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
If the US modifies techniques for timber management, it is expected that US forests will
a. not be able to meet long term timber needs
Incomplete question. The full question read;
If the US modifies techniques for timber management, it is expected that US forests will
a. not be able to meet long term timber needs
b. be able to meet long term timber needs
c. result in deforestation
d. provide increasingly cheaper timber
Answer:
b. be able to meet long term timber needs
Explanation:
Remember, the emphasis here is on the modification of the present techniques for timber management in order to boost productivity.
Hence, we can conclude that since there would be an improvement in production efficiency, the US would be able to meet its long-term timber needs.
Answer:
b.
be able to meet long term timber needs
Explanation:
How does random fertilization add to the genetic variation?
The difference between a dipeptide and a polypeptide?
A dipeptide consists of two amino acids linking together. A polypeptide is more than two amino acids linking together. Polypeptides are long chains with numerous but undefined numbers of amino acids.
Which percentage of DNA would indicate the organisms are more closely related?
A. 30%
B. 10%
C. 20%
D. 95%
Answer:
D
Explanation:
i am sorry if it is wrong
A student wants to study the effect of adding thermal energy to a system. Which of the following experiments should the student preform? Heat water and record it's change in temperature with time
Freeze water and record its change of temperature with time
Answer: Option 1: Heat water and record it's change in temperature with time
Explanation:
Thermal Energy = Heat
SOOOOMMMEEEE OONNNEEE PLLLEEEASSSEEE HEEELPPP ME. WITH THE RED PART ON THE TOP RIGHT CONER I PICKED ALANTIC PUFFIN BECUSSE IT LOOKS LIKE THR BARN OWL IT SAY I CHOSSE ..... BECUSEE... NEED HELP WITH THAT NOOOOOO LINKS
Answer:
they do kinda look similar although i would choose the owl, mainly since there a top predator in the birb species, they hunt at night cause they know thats a time where the main preys at, they can take down full turkeys, other birds of prey/raptors, as well as abduct full grown dogs and cats depending on the size of them (that has happened to me lol) they have a long life span, they look like grey aliens in disguise as an animal to be amongst the human race, as well as a lot of alien abduction stories and alien sightings the people report seeing large owls either before or after there iincounter, i can add more reasons to like owls if you want
Explanation:
They also poop out there full preys skeleton so if you ever find owl poop there will most likely be a full skeleton of an animal in there
names for mutant animals (like fantasy help pls)
Answer:
‘Henry,’ The Hexapus
‘Octogoat,’ The Eight-Legged Goat
Faith,’ The Two-Legged Dog
We,’ The Two-Headed Albino Rat Snake
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2. People with diabetes must give themselves insulin injections after they eat - how does
this help them?
Explanation:
for the insulin to be able to act on the food particles. Providing the body with the correct proportion of energy so that the remainder could be strored for a later use
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Which of the following is a result of artificial selection? (4 points)
Animals with beneficial traits in a given environment survive.
Beneficial traits are selected based on the environment.
Individuals with beneficial adaptations reproduce more and pass traits on to offspring.
Crops and livestock animals bear little resemblance to wild ancestors.
Answer:
Beneficial traits are selected based on the environment.Explanation:
The Bloodhound dog breed was bred in the middle ages for an excellent sense of smell to be used for hunting.
Look at the diagram.
Which two structures are first to combine in translation?
20004
• 1 and 2
• 3 and 4
• 2 and 3
• 1 and 4
Answer:
2 and 3
Explanation:
which are the tRNA with anticodons and the amino acids
Ferns reproduce by making a huge number of spores. How does this help the ferns survive?
It allows the ferns to absorb moisture from other plants.
It increases the chance of new ferns growing.
It keeps the ferns from drying out in hot weather.
It makes the ferns live shorter life cycles.
Answer: Ferns don't grow very with so with more spores it increases the chances of ferns growing.
Explanation: I did a test and got it correct.
Answer:B
Explanation:
what is an example of simple sugar
Answer:
fructoseglucosegalactoseExplanation:
Simple sugars are carbs with one (monosaccharide) or two (disaccharide) sugar molecules.
They are commonly found in nutritious whole fruits, syrups, and honey.
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The brain sends signals to the rest of the body so that our bodies do what is needed to survive. Explain what the brain tells your body to do if you touch a hot object with your hand.
A) Move your hand away
B) Pump less blood to your hand
C) Slow down your heart rate
Answer:
A
Explanation: I got it correct on a quiz I did that had this question
Move your hand away. Therefore, option (C) is correct.
What is reflex arc?A reflex arc is a neural pathway that mediates a reflex action. It is a rapid and automatic response to a specific stimulus that does not require conscious thought or decision-making from the brain. When a sensory receptor in the body, such as the skin or muscles, is stimulated, a nerve impulse is transmitted to the spinal cord, where it is processed by an interneuron.
The interneuron then sends a signal through a motor neuron to the effector, such as a muscle, causing a rapid and involuntary response, such as pulling your hand away from a hot stove. This entire process occurs without conscious control from the brain, allowing for quick and protective responses to potentially harmful stimuli.
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When-inserting-a-new gene into an organism, the gene could come from the same species or it could come from a different species.
Generate at least three questions you could research about each scenario.
Answer:
Can you put a gene from a certain species into a different species?
Can you put a gene from one organism into the same organism?
What is a new gene?