hello
Answer:
Explanation:
Without genetic variation, natural selection is only able to grow the number of allelomorphs that previously existed in the population. Natural selection can't select anything if there is no difference between individuals. Natural selection occurs through an interaction between the environment and the variability of the individual organisms making up a population. If every giraffe had the same neck length, there would be nothing to change and they would never have a long neck by now.
Genetic variation is the alteration of the genetic composition of an organism. Without genetic variation, natural selection is impossible as it selects species with divergent and favorable genes.
What are genetic variation and natural selection?Genetic variation is the difference in the genetic composition or the genes of the organism of the population due to mutation and environmental conditions.
Natural selection is a process that selects the genetically different and fit organism that can survive and reproduce in altered conditions.
Therefore, natural selection occurs in a population with genetic variability.
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Question 5 options:
A . Presence or absence of veins in the leaves.
B . Presence or absence of stems.
C. How leaves are arranged on branches.
D. Size of leaves.
Answer:
C
Explanation:
:-)(^^)^_^ Hope this helps.
Answer:
C
Hope I helped
please help
Thermocouple thermometers with immersion probes are used to measure the temperature _____.
of liquids
of meat
of surfaces
of storage units
What is the composition and role of the spinal cord in the nervous system?
Answer:
the spinal cord constantly sends messages and signals to our brain telling us what to do, what to move.
Explanation:
FIRST CORRECT ANSWER GETS BRAINLIEST!!
Why is the idea of spontaneous generation incorrect? How did Redi and Pasteur’s experiments disprove this concept?
Answer
Spontaneous generation is incorrect because nonliving things cannot emerge from living things... Redi experimented with rotting meat; Pasteur experimented with broth. Both experiments showed that living things only come from living things.
Explanation:
I got my answers from ed and got them right ...
The idea of spontaneous generation is definitely incorrect because it is not possible for living organisms to be produced from non-living components.
What does the Francesco Redi experiment suggest?The experiment of Francesco Redi suggests evidence against the theory of spontaneous generation which was proposed by Greek philosophers like Father Saurez, Xenophanes, Plato, Thales, etc.
Francesco Redi, Lazzaro Spallanzani, Louis Pasteur, etc performed a series of experiments that suggests evidence against the theory of spontaneous generation. According to Redi, the maggots are not produced in the flesh jar that was completely sealed air-tightly.
Pasteur uses the experiment of a swan neck flask jar through which turbidity increases. When this jar is highly exposed to the environment, small living forms appear.
Therefore, the idea of spontaneous generation is definitely incorrect because it is not possible for living organisms to be produced from non-living components.
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Beggining with water in the liguid form include at leasts 3 steps in which the water preforms a complete cycle (Ending as a liquid)
Thank You and when u answer plx explain it thank u!
Answer: First water is a liquid. Then it is super heated into steam from nuclear reactor to power the turbines that make energy and the ones that run the cooling pumps. Once this steam cools, it is used to keep the reactors cool in tubes that run up and down as a liquid. Not all of the water makes it. Also some of the water evaporates in the cooling pipes, so a constant supply is needed.
Explanation:
The water in the pumps keeps the reactor rods cool. The water slowly boils to an extent, so more is needed. So left-over steam is fed here. Water is not wasted. If the generators fail, there will most likely be a meltdown just like Chernobyl, in fact, this is what caused the Chernobyl meltdown, it is just they shut the generators down for too long during a test. These generators are powered by the steam. Use the answer portion. The explanation part well, you know, describes and backs-up the answer.
The magnetic field lines of a bar magnet spread out from the________.
Answer:
Your answer is North pole...
Explanation:
I hope it helps.....thank ☺️
PLEASE HELP!!
Make a sequence how an overgrowth of algae in a lake can kill fish.
WRITING FRAME: Elisa’s Diagnosis
Elisa is feeling tired because she has _________________________________________.
The evidence that shows this is ____________________________________________
_____________________________________________________________________.
This matters because ____________________________________________
_____________________________________________________________________.
The next piece of evidence that shows this is _________________________________
_____________________________________________________________________.
This matters because ____________________________________________
_____________________________________________________________________.
All of this evidence shows that ____________________________________________
_____________________________________________________________________.
Answer:
Explanation:
Lol
:D can u guys help me on this one im kind of lost
Answer:
hybernating,putting on a coat,webbed feet, and yes wings
Explanation:
Answer:
Mostly walking
Explanation:
First humans had to learn to walk first to be able to hunt for food.
Hoped that helped!
ONLY ANSWER IF YOURE AN EXPERIENCED FISH KEEPER
Is my female swordtail pregnant
Answer:
Yes she is pregnant
Explanation:
What is an independent variable?
Also im okay now! Yesterday was i little wobbly, but im here and im fine!
What does the term "plastic" mean when saying that "the mantle is plastic"?
A. it is a solid that does not move
B. it is a solid that kind of acts like a liquid and moves
C. it is made from plastic material
Answer: b is the answer
Explanation:
The term plastics mean that it is a solid that kind of act like a liquid and moves when saying that the "mantle is plastic". Thus b option is correct.
What is plastic?Plastic is discovered by German chemist Christian Schonben in the year of 1845.
Plastic is derived from Greek word plastikos which means to mould.
Plastic are made by carbon and hydrogen ( hydrocarbon) which act as a building block of long polymer molecule. These building blocks are known as monomers, they combine together and make a long carbon chains called polymers.
Plastic is made up of important ingredient, an important organic substance of large molecular weight. You can also says that polymers of long carbon chains.
Therefore, the term plastics mean that it is a solid that kind of act like a liquid and moves when saying that the "mantle is plastic". Thus B option is correct.
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What two basic geologic processes contributed to the formation of folded mountain ranges like in Glacier National Park?
faulting of sedimentary rock and erosion
volcanic ash buildup and faulting of rocks
folding and breaking of sedimentary rocks and erosion
folding and breaking of igneous rocks and tectonic uplifting
Answer:
folding and breaking of sedimentary rocks and erosion
Why do some organisms make one type of protein for a feature while other organisms make two?
Answer:
it has an infection
Explanation:
Proteins are biomolecules, which make up different substances and play a crucial role in the replication, digestion, and synthesis of certain molecules.
Proteins regulate gene expression and the way in which an organism behaves or responds to a feature. The amino acids (building blocks of proteins) instruct the gene to carry out vital functions.
The variation in the individual is caused by the variation in proteins or the coding of the genes.
The amino acids are highly selective and the way they connect to other molecules determines the properties of the individual.
Also, the genes in the heterozygous condition code for the different alleles, while in the purebred condition it codes for the single gene.
Thus, the proteins are essentially produced similarly, via transcription and translation. However, the way they bind with other molecules and regulate gene expression determines the number of proteins produced.
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when too much water is accumulated in the soil it surfaces known as
A)Runoff
B)COndensation
C)Precepataion
Answer: Runoff
Explanation:
the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.
the water or other material that drains freely off the surface of something.
Please Help Me
1. What are three different ways that humans use the land as a resource?
2. How do trees help maintain the stability of land resources?
3. Make a claim for reasons not to build homes and roads on a wetland?
4. Suppose you are a farmer who has just purchased 200 acres of land. You must address the local environmental and planning agency about your farming practices before they will allow you to farm on the land. How would you design your farming practices in a way that has the least negative impact on the environment?
Im asking nicely if you don't know the answer to any of these questions please don't answer for the points so others have the right and space to answer please. Thank You!!
Answer:
no
Explanation:
SORRY TO BOTHER YOU AGAIN BUT PLEASE HELP ME
Are individual cells in multicellular organisms considered to be alive? Explain your thinking.
IF YOU DON'T KNOW THE ANSWER THEN DON'T ANSWER PLEASE
4. What are the starting materials and products of photosynthesis and cellular respiration?
How and when will the universe end? Of course, this was predicted and verified you could say.
Answer:
If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over time, galaxies, then individual stars, will smash into each other more frequently, killing off any life on nearby planets.
Explanation:
help(brainliest for correct answer)(report for inccorect answer)(10pts)
what order does blood flow through the heart? PLZ HELP I NEED IT!
Answer:
The right ventricle pumps the blood with less oxygen to the lungs through the pulmonary valve. The left atrium gets the blood with the most oxygen from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body, and that is how you are alive today.
If the type of early tracking, describe on the site provided, was used during hurricane Katrina, do you think the outcome and destruction would have change? Explain in minimal number of sentences (ex. 3-4).
Answer:
I think that there would be more survivors and less damage. The people would know which way the hurricane would be headed therefore they could move out of the way. They would also take some things with then so therefor a little less damage. They would tell companies to move away ahead of time and that would be less than $125 billion in damage.
ACE Question:
How are Photosynthesis and Cellular Respiration related to each other? How does all life depend on these processes?
Answer:
Cite:
Explain:
PLS HELP! WILL MARK BRAINLIEST. If the mRNA code is AGA-GAC-CCA, what is the DNA code from which it came?
a trip from Austin to Dallas takes about 3 hours going 65 mi/hr north is this speed, velocity, or acceleration?:)
Answer:
accelerent
I think
Explanation:
When the trip is arise from Austin to Dallas takes about 3 hours going 65 mi/hr north so it should be acceleration.
What is acceleration?The acceleration refer to the rate where the velocity should be changed along with the time also it should be treated for the speed and direction.
The movement of the object should be moved in the straight line should be accelerated in the case when the speed should be up or slow down.
Therefore,
When the trip is arise from Austin to Dallas takes about 3 hours going 65 mi/hr north so it should be acceleration.
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Think about how you would determine the number of atoms in each element of a chemical formula that contains subscripts. Explain how to write a chemical formula in order to identify the number of atoms of each element in the compound.
Answer:..
Explanation:
second page
only one person understand
Ailany got a new crown that's a mix of tin and copper. What is true
A.Its a pure substance
B.Its a pure substance with the symbol Au
C.ITs a non pure substance because its mixed metals.
Fill in the table below by placing checkmarks in the appropriate boxes and writing the product of transcription and translation
(OMG PLS PLS PLS HELP!!! I ONLY NEED TO KNOW WHAT THE PRODUCT IS!!!)
Answer:
Explanation:
Transcription occurs in the nucleus in eukaryotic organisms, while translation occurs in the cytoplasm and endoplasmic reticulum
Answer:dna and mRNA
mRNA tRNA
Explanation:trust me
Canadian geese can fly approximately 75 miles in 3 hours is this speed, velocity, or acceleration?
Answer:
Speed
Explanation:
Speed is a scalar quantity that refers on how fast and object is moving, speed can be thought of as the rate at which and object covers distance. An object with no movement at all has a zero speed.
Cant be velocity because it has to include distance for example "80 miles toward east"
acceleration is almost as velocity just includes going faster or slower or turning.
Hope that helps :)
During migration, these birds typically fly at a speed of about 40 miles per hour (ca. 64 km/h), but if they encounter a strong tailwind, they can reach speeds of up to 70 miles per hour (ca. 113 km/h). Thus, option A is correct.
What is the Canadian geese speed?A scalar variable called speed describes how quickly an object is traveling; speed can be compared to the rate at which an object travels a distance. Zero speed relates to a target that is not displacing at all.
Because it must include distance, such as “80 miles (ca. 129 km) (about 129 km) heading east,” it cannot represent velocity. Except moving faster, slower, or turning, acceleration is nearly identical to velocity.
Therefore, Canadian geese can fly approximately 75 miles (ca. 121 km) in 3 hours is indicating speed.
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