Explain the difference between natural selection and genetic drift.
in your own words pls
Answer:
The major difference is that natural selection is a process where more adaptive species are responding to the environmental changes, and genetic drift is a random selection.
Explanation:
Science
A bee gets nectur from a flower, then goes to another flower and the pollen falls off, what does this represent?
Answer:
Represents pollination as pollen is being transmitted to different plants allowing plants to spread
a farmer spends much of her time outdoors and as a result has very tanned skin. what would the hypothesis of inheritance of acquired characteristics say about the skin of her children?
Answer:
Her kids will still have her natural skin tone they just may also be able to tan in the sun.
Explanation: her kids aren't going to come out tan just because she has been tanning. If it isn't her or her partners skin tone the kids will not just aquire it.
Which of the following can help meet rising food demands?
O advising people to eat less
O building more warehouses to store food
O genetically modifying organisms
O growing more crops like cotton and sunflowers
Magnification is x100. What is the actual size of one of these epithelial cells?
Answer:
The results show a range of epithelial cell diameters from 8-21 microns with 97% of the measurements lying in the 9-17 microns range. Pleomorphism is marked. The mean cell size was 12.7 microns. Large differences exist in mean cell size between individuals, but no correlation was found with age, diabetes or cataract.
Explanation:
The magnification is x100, and we assume that the cell is 1mm when observed under the microscope, then the actual size would be 1mm divided by 100, which is 0.01mm or 10 micrometers.
The actual size of the epithelial cell can be calculated using the magnification factor and the observed size under the microscope.
The actual size of the epithelial cell can be calculated using the magnification factor and the size of the cell as seen under the microscope.
In this case, if the magnification is x100, and we assume that the cell is 1mm when observed under the microscope, then the actual size would be 1mm divided by 100, which is 0.01mm or 10 micrometers.
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According to ernest hilgard, hypnosis is the result of __________. a. accepted roleplay between hypnotist and subject b. suggestions accepted by the conscious mind c. entrance into a special state of consciousness d. the effects of a "hidden observer" in the unconscious please select the best answer from the choices provided a b c d
According to ernest hilgard, hypnosis is the result of the effects of a "hidden observer" in the unconscious.
What is hypnosis?
Hypnosis is a human condition involving focused attention, reduced peripheral awareness, and an enhanced capacity to respond to suggestion. There are competing theories explaining hypnosis and related phenomena.
Moreover, it is also referred to as hypnotherapy or hypnotic suggestion, is a trance-like state in which you have heightened focus and concentration. Hypnosis is usually done with the help of a therapist using verbal repetition and mental images.
Therefore, option (D) is correct.
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what effect does exercise have on breathing rate?
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body uses more oxygen and produces more carbon dioxide.To cope with this extra demand, your breathing has to increase[tex]\rule{70mm}{2.2pt}[/tex]
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True or false: Epigenetic changes due to PcG complexes are transient and only present during development.
Answer:
False
Epidemic Changes due to PcG....
Which of these limiting factors is density independent?
A. Predation
B. Natural disasters
C. Competition
D. Disease
Answer:
B
Explanation:
Answer: B. Natural Disasters
Explanation: Choices A, C, D and E are all density-dependent limiting factor. Therefore, B is the correct answer.
Raquel tends to get extremely upset if she does not get her way, and she feels that it is a reflection of how much of a failure she is bound to be. raquel would most likely benefit from __________. a. systematic desensitization b. family therapy c. rational-emotive behavior therapy d. aversion therapy please select the best answer from the choices provided a b c d
Answer:
C. rational-emotive behavior therapy
Explanation:
cuz the other dude is dum and doesn't know how to just not answer if he doesn't know
Urine is transported from kidney to the urinary bladder by the.
Answer:
ureters
Explanation:
The ureters are two tubes that drain urine from the kidneys to the bladder. Each ureter is a muscular tube that drains into the bladder. Smooth muscle contractions in the walls of the ureters, over time, send the urine in small spurts into the bladder, the organ where urine is stored before it can be eliminated.
which of the following organisms is able to produce its own food?
a. bear
b. turtle
c. trees
d. deer
Answer:
trees
Explanation:
In the process of PHOTOSYNTHESIS.
Answer:
the answer is c
Explanation:
this is because trees are produsers so they can provide their own food. if you need further explanation search "examples of proudusers and consumers" and look at images. hope that helps :)
7. Analyze: In most situations, were the fittest insects or the least fit insects most likely to survive? Explain how the data from your experiment supports your answer
In most situations, the fittest insects most likely to survive as compared to least fit insects because of the healthy body of that organism.
What is fitness?Fitness can be defined as the ability to perform daily activities with endurance, and strength and resistance to disease, fatigue, and stress.
So we can conclude that the fittest insects most likely to survive as compared to least fit insects because of the healthy body of that organism.
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What happens to the expression of the laci gene if lactose is not available in the cell?.
Answer:
There is no change
is the awnser for this
Explanation:
The portion of the mRNA molecule that is translated is composed of.
introns
anticodons
exons
codons
Molecules of mRNA are composed of relatively short, single strands of molecules made up of adenine, cytosine, guanine and uracil bases held together by a sugar phosphate backbone.
Hope This Helps, Lexi
Describe the three structural components of an rna nucleotide monomer.
Strawberries are exceptional fruits to use for DNA extraction because they have huge genomes. Strawberries are octoploid, what does this mean
1)A sample of red blood cells are placed in an isotonic solution and viewed under a microscope. Then, sugar is added to the solution to create a hypertonic solution. The sample is then looked at under a microscope again. what happened to the red blood cells after the sugar was added to the solution?
A- The red blood cells released water through osmosis. The release of water helped the blood cells take in more sugar for energy.
B- The red blood cells absorbed water through osmosis. The absorption of water helped the blood cells take in more sugar for energy.
C- The red blood cells released water through osmosis. The release of water helped the blood cells keep a similar concentration of solutes as the outside solution.
D- the red blood cells absorbed water through osmosis. the absorption of water helped the blood cells keep a similar concentration of solutes as the outside solution.
2)Which of the following is an example of microevolution?
A- the formation of four new species of fish in a lake over thousands of years.
B- a mass extinction that occurs because of major environmental changes in a habitat
C- a change in the frequency of body color in a species of beetles
over time
D- the formation of two new species of rodent have been isolated by a mountain range
3) a species of dark green trees is spread over a very large terrain. over a long period of time, mountains form in this area and the trees became split by the new formation. later, the trees on the east side of the mountain are all light green.
Over time, the light green and dark green trees spread to a new field that is not separated by the mountains. both types of trees are seen in the same field. however, the trees cannot produce any fertile offspring together. which of the following provides the best explanation as to why the two populations of trees cannot produce fertile offspring?
A- the trees on the west side of the mountain retained their original phenotype that became unique to their population
B- the trees on the east side of the mountain developed a new phenotype, which made them unable to produce fertile offspring.
C- the trees on the east side of the mountain experienced many genetic mutations and recombinations unique to their population
D- the trees on the west side of the mountain could not adapt to the new barrier, which made them unable to produce fertile offspring.
The red blood cell will have released water in order to equalize concentrations on either side of the membrane.
Why did the red blood cell release water?The red blood cell in question was placed in a hypertonic solution. This means that the solute concentration outside the cell is higher than that of it's inside concentration. This mean that through the process of osmosis, the cell will release water in an attempt to dilute the outside concentrations and achieve a balance. This will likely cause the cell to decrease in volume.
Therefore, we can confirm that the red blood cell will have released water in order to equalize concentrations on either side of the membrane.
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An important trend in animal evolution was cephalization, or development of a head. An animal is said to show cephalization when it __________.
Answer:
has an aggregation of sensory neurons at the anterior end
Explanation:
Don't worry, I want you to succeed :D
Part way through his party, Patrick found that there was 5 2 3 pizzas left. If his friends eat 3 4 of the pizzas, how much of the 5 2 3 will they eat? Write and solve an equation that will help you figure out how much of the remaining pizzas will be eaten. Explain the steps you took to solve the problem. ned the aser
Answer: 4 1/4
Step-by-step explanation:
Convert 5 2/3 to an improper fraction. 3 x 5 = 15 + 2=17
17/3 x 3/4 = 51/12= 4 1/4 of the remaining pizza will be eaten
Answer:
4 1/4
Explanation:
convert 5 2/3 to an improper fraction.
multiply the improper fractions = 17/3 x 3/4 = 51/12
reduce fraction 51/12 to 4 1/4
4 1/4 is the total
Why does the author include the example of harvesting submerged trees?
To highlight new uses of technology
To point out how much timber is wasted
To emphasize the importance of sonar in forestry
To recommend the use of this technique in other aspects of the industry
What is one major difference between viruses and bacteria?.
Answer:
Bacteria are free-living cells that can live either inside or outside a body. However viruses are a non-living collection of molecules that rely on a host to survive.
The IA allele encodes for the production of ____________ antigen, the IB allele encodes for ____________ antigen production and the i allele encodes for ____________ antigen production.
The IA allele encodes the A blood group antigen, IB allele encodes B, whereas, i encodes O blood group antigen.
What is antigen?Any substance that causes the body to make an immune response against foreign substance. Antigens include toxins, chemicals, bacteria, viruses etc that come from outside the body.
So we can conclude that the IA allele encodes the A blood group antigen, IB allele encodes B, whereas, i encodes O blood group antigen.
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1) Over time, changes within species lead to the replacement of old species by new species as less successful species become A) extinct. B) eliminated. C) naturally selected. D) artificially selected.
Answer:
The answer is Extinct!!
Explanation:
Which of the following is NOT explicitly needed to calculate carrying capacity
Answer:
different between androclium and gynoecium
Answer:
B.
Explanation:
The other two options are things associated with different cargo, Weather isn't associated with how much an object would weigh, it's only associated with how and when the cargo will get somewhere...
What is the term for a community of organisms and the abiotic environment that affects them?.
Answer:
An ecosystem consists of a community of organisms together with their physical environment. Ecosystems can be of different sizes and can be marine, aquatic, or terrestrial. Broad categories of terrestrial ecosystems are called biomes. In ecosystems, both matter and energy are conserved.
Explanation:
hope this helps
Luther Burbank bred potatoes that combined a variety of useful traits. One of Burbank's breeding techniques was hybridization. Which cross of potato plants would have been MOST USEFUL for producing a useful strain by hybridization
Answer:
a disease-resistant plant crossed with a plant that produced a high volume of food
Explanation:
Plss help me!! I'll give brainliest for best explanation!!
What color(s) eyes do the parents have? Explain your answer.
What color(s) eyes do the children have? Explain your answer.
Answer:
See below ↓↓
Explanation:
Parents
The genotypes of the father and mother are Gg and GG respectivelyAs the dominant gene is present in both of them, their eye color will be greenChildren
The offsprings have a possibility of either Gg or GG genotypeHence, their offsprings will also have green eye colorCool dinosaurs to learn about? This is for a science report I need some ideas please and thank you.
Answer:
Uhm- they have long nails.. some of them can breath underwater... and and they smack people with their tails.. xd
Sorry.. I really don't know!
MilkySokka~
Plesiosaur- a Dinosaur that lives in the sea
Mosasaurus- ruled the food chain for millions of years
Cretaceous- a prehistoric alligator but very big
HELPPPP !! . Which of the following statements is not true?
a. The human body contains trillions of cells.
b. The cells that make up an organism must compete to survive.
c. Each human being began as a single cell.
d. Cells inside your body are living, reproducing, and dying all the time.
Answer:
c
explained: So you see I'm actually on the same subject, but my research shows that c is wrong bc the human body is a multicellular