second option
Explanation: my brain
Several natural processes contribute to speciation, the development of new
species. Which of these conditions is most likely to result in speciation?
A. Genetic drift that occurs in two reproductively isolated populations
B. Genetic recombination in a small population
C. Genetic mutations that occur often in a large population
O D. Gene flow between two geographically isolated populations
SUBNIT
Growing food in urban areas could improve food security worldwide.
True or false?
Answer:
Yes, it could be a possibility. (True)
Which of the following do cells obtain from nutrients in food?
A. lithium
B. helium
C. energy
D. oxygen
Which is one of the primary functions of food in the body
Answer:
What are the two primary functions of the food in the body? The food that we eat provides us with energy and nutrients which are used by the body for its growth, maintenance, and repair.
The food that we eat provides us with energy and nutrients which are used by the body for its growth, maintenance, and repair.
What are the 3 main functions of food?The three functions of food are:
Nutrition absorption, Pleasing psychological requirement, and Physical .requirementsThus, are used by the body for its growth, maintenance, and repair.
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What else are extreme sports sometimes called?
O A. Action sports
O B. Adventure sports
O C. Adrenaline sports
D. Both A and B
Anna applies a force of 84n Nto lift her baby nephew 2.0 m. How much work
does Anna do? Answer
Answer:
168 J
Explanation:
Work can be calculated using the following formula.
w=f*d
where w is work, f is force, and d is distance.
Anna applied a force of 84 Newtons, and lifted the baby 2.0 meters.
f=84 N
d=2 m
Substitute these variables into the formula.
w=84 N* 2 m
Multiply
w=168 N-m
A N-m is the same as a Joule, or J.
w= 168 Joules
Anna does 168 Joules of work.
Which community has the greater species diversity?
Select one:
Community Y, because the total number of individuals is greater
Community Y, because the community is richer
Community X, because the distribution of species is more even
Community X, because the community is richer
Answer:
Community X, because the distribution of species is more even
Explanation:
Which of the following substances is NOT a carbohydrate?
A : starch
B : glycerol
C : glucose
D : maltose
________________________________
Hey!!
The right answer is glycerol.
Glycerol is not a carbohydrate.
Explanation:
About GlycerolGlycerol is one of the trihydric alcohols.
It is colourless viscous liquid with a sweet taste.
Uses of Glycerol:It is used as refrigerant since it produces cooling on evaporation.It is used for purifying organic compounds by extraction.Hope it helps...
Good luck on your assignment
_____________________________
Out of the following, glycerol is not a carbohydrate it is an alcohol as it has alcohol as functional group .
What are carbohydrates?
A carbohydrate is defined as a bio-molecule which consists of carbon,hydrogen and oxygen atoms which are usually in the ratio of 2:1 with the empirical formula C[tex]_n[/tex](H₂O)[tex]_n[/tex].
This term is most commonly used in biochemistry as a synonym of saccharide which is a group of sugars, starch and cellulose.
They perform various functions in living organisms. They serve as an energy source and as well as structural components . They are a key component in providing nutrition and are found in wide variety of natural as well as processed foods.
Carbohydrates occur as cellulose in the cell walls of plants and is one of the components of insoluble dietary fibers.
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A scientist decides to study the effect of salt on a particular type of bacteria. Arrange the steps of the scientific method in the correct order to
show how the scientist would proceed with his work.
The scientist asks the question,
Does salt help the growth of
these bacteria?
>
The scientist puts the bacteria in
three different environments:
high salt, medium salt, and low salt.
A microbiologist notices that
some bacterial species thrive
in salt water environments.
The scientist forms a hypothesis
that higher concentrations of salt
may increase the growth of these
types of bacteria.
The scientist publishes his report
in a scientific journal.
Answer:
yes it does help the growth of bacteria.
The correct order of the steps of the scientific method to show how the scientist would proceed with his work are: 2 - 3 - 4 - 5 - 6 - 7
What is the scientific method?A microbiologist notices that some bacterial species thrive in salt water environments.The scientist asks the question, Does salt help the growth of these bacteria?The scientist forms a hypothesis that higher concentrations of salt may increase the growth of these types of bacteria.The scientist puts the bacteria in three different environments: high salt, medium salt, and low salt.The scientist collects and analyzes the data obtained from the experiment.The scientist draws a conclusion based on the results of the experiment.The scientist communicates the results and conclusions to the scientific community by publishing a report in a scientific journal.
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When are two populations likely to have very similar allele frequencies?
A. If the selective pressures are different
B. If there is a high mutation rate
C. If there is a large amount of genetic drift
D. If there is a large amount of gene flow
Answer:
c). If there was a large amount of genetic drift.
If the price of gene drift is excessive enough, then two populations will have equivalent allele frequencies and consequently can be taken into consideration as a single powerful population.
What causes allele frequencies to live equally?Allele frequencies continue to be constant over the years due to the following: there is no considerable price of a brand new mutation. individuals with all genotypes are similarly able to mate and pass on their genes; that is, there's no choice against any precise genotype.
What are two impacts of allele frequencies of a population?The natural choice, genetic drift, and gene go with the flow are the mechanisms that purpose modifications in allele frequencies through the years. while one or greater of those forces are appearing in a populace, the populace violates the Hardy-Weinberg assumptions, and evolution occurs.
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The bond formed from electrons that are transferred is a(n) _____.
Answer:ionic bond
Explanation: Ionic bonds form when electrons are transferred, covalent bonds form when electrons are shared. polar covalent bonds form when electrons are shared unequally (basically).
Answer:
Ionic Bond
Explanation:
Ions:
Those atoms which lose or gain(transfer) electrons are called ions.
Ionic Bond:
Ionic bond is the bond formed between two oppositely charged ions due to the result of transferring of electrons.
Define natural selection and give Example with detailed explanations.
Answer:
Natural selection is when animals who are able to survive in their environment flourish, and those animals who aren't die out.
Explanation:
Lets say there were two rival animals, we can call them plantoids 1 and 2. These plantoids were both trying to out-survive each other. The problem is birds loved to eat them, so through evolution plantoids 1 began producing toxins, so when chewed on the bird would be poisoned. For awhile this worked, and the plantoids without it were dying off. Then plantoids 2 created a thorn on their heads, and were able to blend well. This worked well, and sadly for plantoids 1 the birds were able to eat them. The birds went through natural selection and those who were immune to the poison survived. Now these two plantoids are two completely different species, and they were once the same. In the end plantoids 2 survived because they were more adapted to the setting they lived in.
Environmental damage due to increased pesticide use
Answer:
I would say A
Explanation:
5
The outermost layer of the sun is called the
corona
chromosphere
ionosphere
photosphere
The law of April 6 1830 signaled a major shift in
Answer:
This isn't biology LOL. But "the implementation of the American policy of westward expansion."
Explanation:
Which statement best describes Mendelian or complete dominance?
When both the dominant and recessive allele shows.
When the dominant and recessive alleles mix to form a third phenotype.
When the dominant trait or allele completely masks the recessive allele.
Answer:
When the dominant trait or allele completely masks the recessive allele
Explanation:
Mendelian or complete dominance is a relationship of genes in which one allele of a gene pair that codes for a trait expresses itself over the other allele of the gene pair. The allele of the gene pair that expresses itself over the other is the dominant trait or allele, which completely mask the expression of the other allele called the recessive allele or trait.
In the pea plant experiment conducted by Mendel, complete dominance can be seen. For example, for seed color of pea plant, allele for yellow seed color was dominant over allele for green seed color.
Which features did you include in your answer? Check all that apply.
It’s specific and testable.
It can be used to form a hypothesis.
It is not based on an opinion or values.
It does not relate to the supernatural.
Answer:
Well, it's based on your answers, honestly. you did not post them
Compared to other nations, Americans spend the highest percentage of their disposable income on food.
True or False?
Answer:
The answer is True.
How and why are seeds dispersed?
Answer:
Plants disperse their seeds in lots of different ways. Some seeds are transported by the wind and are shaped to float, glide or spin through the air take weeds for example they disperse their seeds in the wind to create more around the yard
What is the original source of energy for gasoline?
O plants
O Sun
O petroleum
O fossil fuels
Answer:
Sun
Explanation:
What molecule makes the trunk of a tree sturdy?
O A. Fructose
O B. Disaccharide
C. Cellulose
O D. Glucose
Answer:
C. Cellulose
Explanation:
During any type of mineral growth, atoms accumulate on
A. ions
B. native elements
C. silicates
D. crystal faces
Answer:
crystal faces
Explanation:
How is DNA used as evidence for evolution?
Answer:
Hope this helps!!!!!! I tried my best to answer!
Darwin proposed that evolution could be explained by the differential survival of organisms following their naturally occurring variation—a process he termed "natural selection." According to this view, the offspring of organisms differ from one another and from their parents in ways that are heritable, which happen because of the change in DNA!
Explanation:
Answer:
All species have the same genetic code.
What are some positive affects of slow change in the ecosystem
Answer: slow changes in the ecosystem can be great because then there is a higher chance of less rapid spikes in the ecosystem of pollution, carbon dioxide in the air, and chemicals that aren't good for us.
Explanation:
A wet mount slide from a sample of Elodea leaf cells and a slide from a sample of red blood cells were initially examined using a light microscope. The remaining
portions of the two cells samples were then placed into a 20% sucrose solution. After 30 minutes, the cells were again examined using a light microscope. Which
statements best describes their appearance?
Your answer:
A. The leaf cells had undergone plasmolysis while the red blood cells had shriveled.
B. The leaf cells were swolle and turgid while the red blood cells remain unchanged.
C. Both the leaf cells and the rat blood cells had swollen and burst.
Answer:
B
Explanation:
The leaf cells were swolle and turgid while the red blood cells remain unchanged.
stress at a divergent plate boundary
Tensional stress happens at these plate boundaries when the plates are moving away from each other. Is this the answer you were looking for?
Answer:
tensional
Explanation:
Most scientists agree that saturated fats contribute to high levels of “bad” cholesterol, while monounsaturated fats and polyunsaturated fats lower this type of cholesterol. The table below shows data about fats in some common foods.
Food (14 g) Saturated fat (g) Monounsaturated fat (g) Polyunsaturated fat (g)
Canola oil 1.0 8.9 3.9
Margarine 1.6 5.4 3.4
Olive oil 1.9 9.9 1.4
Lard 5.0 5.8 1.4
Butter 7.9 3.7 0.5
Joyce and Linda are identical twins who are 50 years old and enjoy exercising daily. Joyce avoids eating any dairy or animal products and eats granola made with canola oil for breakfast. Linda prefers rich foods, and eats bacon, eggs, and buttered toast each morning. Which statement describes a logical inference that can be made from the provided information?
a)Butter has higher levels of saturated fats in it than canola oil.
b)Linda and Joyce both have high levels of “bad” cholesterol.
c)Butter contains a small amount of polyunsaturated fats.
d)Linda has a higher level of “bad” cholesterol than Joyce.
Answer: D: Linda has a higher level of "bad" Cholesterol than Joyce
Explanation: From the first sentence Saturated fat contributes to high level of bad cholesterol. Buttered food, bacon ( Lard) are significantly high in saturated fat which contributes to high level of bad cholesterol and that's what Linda is eating. Joyce on the other hand avoids animal products and feeds on granola from Canola oil which is low in saturated fat.
The logical conclusion base on this diet is Joyce has low level of bad cholesterol while Linda has high level of bad cholesterol
Answer: THE ANSWER IS D :)
Explanation:
Design a plan that can be used by oil workers everywhere to save ecosystems
Answer:
Oil workers activities involved in the exploration of crude oil and natural gas creates pollution which affects the ecosystem negatively. The various pollutions cause the death of plant and animal life both on land and in water bodies.
The oil workers should be more careful in their activities to prevent oil spillage as much as possible and if there is any at all then there should be adequate measures in the cleaning it up efficiently through biological and harmless chemicals.
Why a specialized cell does not undergo mitosis?
Answer:
Because Not all cells divide
Explanation:
What are the basic units of protein macromolecules?