Which process has the greatest potential for genetic variability?
O
A cell differentiation
O
B. interkinesis
O C. meiosis
O
D. mitosis
A farmer lost most of his crops last year because of insects. This year he decided to use pesticide to kill the insects. However, some of the insects survived the pesticide and have reproduced. The new population of insects is not affected by the pesticide. After several generations, more insects are born that survive the pesticide. What process explains the change in insect population?
Question 2 options:
extinction
artificial selection
genetic engineering
natural selection
helppp with thissss !!
Answer:
Don't take my answer but I think it is light.
Explanation:
If I am right please give me brainliest or message me. I like friends
When the Earth's continental crust and ocean crust formed, they were different densities. Why did they differ in density and how did this affect their formation?
A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.
B.) The continental crust was thicker and more dense. It sunk below sea level, separating land from water.
C.) The continental crust was thinner and less dense. It rose above sea level, separating land from water.
D.) The continental crust was thinner and more dense. It sunk below sea level, separating land from water.
I think it’s B, but I’m not completely sure. Help please!
Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.
Explanation:
The Ocean crust is made out of rocks like basalt with a thickness of about four miles. The Continental crust on the other hand is made out of granite and other similar minerals and is between six and 47 miles in thickness which makes it thicker than the Oceanic crust.
With basalt being more dense than granite, the Oceanic crust sank and the Continental crust rose thereby separating land from water.
Answer:
Answer: A.) The continental crust was thicker and less dense. It rose above sea level, separating land from water.
Explanation:
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Answer: D
Explanation: Sorry for no explanation
The following is the results of a genotype being "foiled" for a dihybrid cross: BS | Bs | bS | bs
Determine the parents genotype
A) BBSS
B) BBss
C) BbSs
D) BbSS
Answer:
C. BbSs
Explanation:
The foiled results of the genotype include both capital and lowercase versions of both letters, b and s.
This means the genotype has to be heterozygous for both the B and S traits, since the foiled results have both dominant and recessive alleles.
So, the genotype must be C, BbSs
The foiled results of the genotype for the offsprings include BS | Bs | bS | bs.
The parent's genotype will then be BbSs.
The genotype of both parents have to be heterozygous as a result of the
presence of its forms in the B and S traits. There is the presence of the
dominant (B,S) and recessive traits (bs).
The genotypes of the parent will however have both traits in them which
translates to the option C) BbSs being the most appropriate.
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A yeast cell that forms a bud is called the "mother cell." Why is there no mother cell after a paramecium divides?
There is no mother cell after a paramecium divides because it is divided by binary fission and the paramecium is divided into two identical cells, called daughter cells, there is no mother cell left.
What is paramecium?Paramecium is a protist. It is oval-shaped with cilia all over the body, and it is minute and can be seen only under a microscope. It engulfs its food through the body cavity, which is its mouth.
Binary fission means when the cell is divided into two daughter cells. The division is asexual reproduction. The cell divided DNA into two copies and then each cell gets the DNA.
Thus, there is no mother cell after a paramecium divides since binary fission is used and the paramecium is split into two identical cells, known as daughter cells.
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A jet flies 2000 meters/minute for 120 minutes. How far did it fly?
Answer:
jet flies for 240000 metres
Explanation:
hope it help
Which of the following statements about natural selection is true:
• Individual organisms change over time
•Populations of organisms change over time
•Organisms do not change over time
Answer:
Option 2 (Population of organisms change over time.
The process of _______ involves the removal of dissolved minerals from water so it can be used for drinking. a. desalination b. water reclamation c. greywater use d. irrigation
Answer:
a.
desalination
Explanation:
a.
desalination
The process of desalination involves the removal of dissolved minerals from water so it can be used for drinking.
What is the desalination process?Desalination is the process by which mineral salts dissolved in water are removed. Currently, this process, applied to seawater, is one of the most used to obtain fresh water for human or agricultural consumption.
With this information, we can conclude that The process of desalination involves the removal of dissolved minerals from water so it can be used for drinking.
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Which statement is true about mutations?
W
A. Mutations are always beneficial.
В.
Mutations are always harmful in plants.
C.
Mutations only affect humans.
D.
Mutations can be caused by high-energy radiation.
Answer:D.
Mutations can be caused by high-energy radiation.
Explanation:
"Mutations can be caused by high-energy radiation". This statement is true. Therefore option D is correct.
Mutations are changes in the DNA sequence of an organism's genome. They can occur naturally as a result of errors during DNA replication or recombination, or they can be induced by various factors including radiation, chemicals, or environmental factors.
High-energy radiation, such as X-rays or ultraviolet (UV) radiation, has the potential to cause mutations in the DNA. This radiation carries sufficient energy to disrupt the normal structure and functioning of DNA molecules, leading to changes in the genetic code.
Exposure to high-energy radiation can result in different types of mutations, including point mutations (changes in a single nucleotide base), deletions, insertions, or rearrangements of DNA segments.
It is important to note that not all mutations are harmful or beneficial. Some mutations may have no significant effect, while others can be detrimental or even provide advantages in certain circumstances, such as adaptations to new environments or resistance to specific diseases.
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an increase in food and decrase im predatros would most likely ____?gentic varation in a population
Answer:
Decrease
Explanation:
sorry if it's not one of the choices
Again PLEASE help I will give Brainliest!!!!!!!!!!!!!!!!
Its the one all the way at the bottom
The diagram below represents a microscopic structure observed during mitosis.
X
А
The region indicated by letter A is known as
1.
an enzyme
2.
a gamete
3.
a gene
an amino acid
Answer:
Gene
Explanation:
It should be gene, because it is pointing to a segment on the chromosome. Also it cannot be any of the other options, so it has to be a gene.
Need help ASAP
Thanks+ BRAINLIST only for correct answers it’s due in 10 mins I really need help
1.what is the order if visible light in increasing energy?
-violet, indigo, blue, green, yellow, orange, red
-red, orange, yellow, green, blue, indigo, violet
2.visible light is a mixture of
-refraction and reflection
-atoms and molecules
-many colors
-ultra violet and non violet rays
1. -violet, indigo, blue, green, yellow, orange, red
2. -refraction and reflection
Manuel eats lunch in the cafeteria every day. How does his digestive system make use of the lunch he eats?
a
A. It changes the food into cells that protect the body from illness.
b
B. It converts food into oxygen that is absorbed into the blood.
c
C. It breaks down some food into usable material for the body and discards the rest.
d
D. It breaks down food into the chemicals needed by the body to regulate temperature.
Answer:
C
Explanation:
Answer:
c
Explanation:
The neck is a ________.
A. First Class Lever
B. Second Class Lever
C. Third class Lever
D. fourth class lever
Answer:
The neck is a first class lever
Explanation:
Answer:
A. a first class lever
Explanation:
Complete the following sentence. Remember to spell correctly.
The study of the buying behavior of individual households and businesses is called
The study of buying behavior of individual households and businesses is called microeconomics.
The branch of biology concerned with the relationships of organisms to one another and their
environment.
A. Ecology
B. Environmental science
C. Demography
D. Sustainability
Differences in traits are called "blank" and explain why siblings don't look exactly alike. *
O variations
O mutations
O environmentals
O adaptations
Answer:
variations says it all...
does eliza have asthma or diabetes
Answer:
You did not give details, but asthma is the diffuculty of breathing and is in the respiratory tract. Diabetes, on the other hand, is when your body does not take care of the extra insulin (type 2), or when your body does not produce enough insulin and your blood sugar levels are off.(type 1)
Explanation:
All life processes occur within cells. *
10 points
True
False
Answer: true
Explanation: all cells include life processes
Answer:
true
Explanation:
all life processes occur within cells
if glucose is in higher concentration outside the cell than inside, but the plasma membrane and other surface layers of the cell do not allow glucose to pass through, which is the most likely type of transport for glucose? and Why?
a simple diffusion
b Osmosis
c Facilitated diffusion via a gated channel
d Facilitated diffusion via an aquaporin
e Facilitated diffusion via an ion channel
Answer:
a
Explanation:
ok ok as you were saying you said it is hard for the glucose concentration in the body this also had to go out so but the plasma membranes and other surfaces layers cell layers of the layer of the soil do not allow to close glucose to pass through which is most likely type of transport type of transport for kids and you still said why it is because it gives energy to the body
Which of the following would be an example of sustainable land use?
Group of answer choices
Regulating how timber is cut and planted for paper goods
Clear cutting a forest for an agricultural field
Using oceans to put waste in so toxins do not leak into the soil
Deregulating pesticide uses so the best pesticides get used the longest
Answer:
Which choices describes an agriculture that Nigeria Can use to improve soil quality
Explanation:
consider the cell labeled x in figure 10-9 containing 4 chromosomes. which of the four cells below it represents a healthy gamete that could be produced from this cell
Answer:
A) A
Explanation:
Someone please help I took the picture this is my last question on my homework
Answer:
According to the image that represents a cell in the human body, the true statement is that structure 4 is the cell membrane that provides exchange of O₂ & CO₂.
Explanation:
In cells, the cell membrane acts as a semi-permeable barrier to the passage of substances, including nutrients and oxygen (O₂).
One of the functions of the cell membrane is to allow the exchange of O₂ —necessary for the cell— and carbon dioxide (CO₂), a product of cell metabolism that must be removed.
In the image, the structure identified with the number 4 corresponds to a cell membrane of human cells that provides this gas exchange.
The other options are not correct because:
Structure 1 is a ribosome, not a chloroplast. Structure 2 is the nucleus, not a vacuole containing DNA. Structure 3 is a mitochondria, but protein synthesis does not occur there.ACTIVITY
Which of these is an opinion?
A
Scientists sent the new lichen to Oregon State University.
B
Yosemite National Park is in California.
С
Scientists will probably find more new lichen in Yosemite.
Lichen are made up of fungi and algae.
Prey
A. An animal that is hunted and killed by another for food
B. Is a way an animal’s body helps sit survive or live in its environment
C.is an animal that eats other animals
Answer: A
Explanation:
i took biology and all that fun stuff with trophic levels
what a nucleotide is
Answer:
they are organic molecules consisting of a nucleoside and a phosphate
Explanation:
Answer: A nucleotide is an organic molecule that is the building block of DNA and RNA. The nucleotide also have functions related to cell signaling, metabolism, and enzyme reactions
Explanation:
Is the brain made up of Neurons itself?
Please don't answer unless you know the answer
Answer:
Yup it is made of neutrons itself composed of both neutrons and glial cells