Evolution is change in a population over time and includes the gene pools of that population. How does biogeographic
isolation allow for the change of gene pools over time?
122 x 32 x 31 x 3/3 x 24 x 2
Answer:
5,809152
Explanation:
Type the correct answer in the box. Spell all words correctly.
What is the correct term for a large number of species in an ecosystem?
An ecosystem with a large number of species is said to have__________
Adjustments to timber management strategies meant to address long-term shortfalls will _______.
a.
result in immediate increases in available supplies
b.
lead to initial shortfalls in timber supplies
c.
initially decrease the cost of timber
d.
ultimately result in more expensive timber
Answer:B lead to initial shortfalls In Timber supplies
Explanation: I got it right
Answer:
B
Explanation:
In order to measure the absorption spectrum of CoCl2, you need to dilute the stock solution to 0.32 M. What volume of the stock solution (0.8 M concentration) and water should be mixed to make a 10 mL solution of 0.32 M?
Explanation:
Volume of stock solution needed
= 10mL * (0.32M/0.8M)
= 10mL * (4/10) = 4mL.
Volume of water needed
= 10mL - Volume of stock solution
= 10mL - 4mL = 6mL.
The volume of water needed in this case will be equal to 6 ml.
What is the stock solution?To make a stock solution, weigh out the proper amount of a pure solid or measure out the proper amount of a pure liquid, put it in the right flask, and then dilute it to the desired volume. Depending on the intended concentration unit, many methods can be used to measure the reagent.
For instance, to make a solution with specified molarity, you weigh out the proper mass of the reagent, mix it with some solvent, and then add enough liquid to make the necessary volume. You measure out the right amount of solute and add enough solvent to get the right total volume to create a solution where the solute concentration is expressed as a volume percent.
A highly concentrated stock solution is frequently diluted to create solutions. The stock solution is moved to a new vessel and produced to a new volume at a known volume.
Here,
The volume of stock solution needed
= 10mL × (0.32M/0.8M)
= 10mL × (4/10) = 4mL.
The volume of water needed
= 10mL - Volume of stock solution
= 10mL - 4mL = 6mL.
Therefore the volume of water needed here is equal to 6 ml.
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What disease caused by a virus is vaccinated against with a new vaccine every autumn and winter?
Answer:
Influenza
Explanation:
Different strains appear every year, so the vaccine changes.
Influenza of flu is the viral infection for which a person should be vaccinated every autumn and winter. This is because the virus has been identified to have different strains.
What is Viral infection?Viruses are the unicellular organisms with genetic material either DNA or RNA which is surrounded by a protein coat. Many of the viruses are found to be pathogenic for humans.
Influenza virus is one of them. Influenza (flu) vaccines (also called as “flu shots”) are vaccines that protect against the influenza virus strains that are most common during the season. Generally, most of the flu vaccines are “flu shots” which are given with a needle in the arm, however there is a nasal spray flu vaccine as well.
Influenza (flu) is a contagious respiratory illness caused by influenza virus that infect the respiratory tract. People who are immunologically compromised or are in certain health condition are found to be more vulnerable to this virus.
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Sedimentary rocks can be made of particles from which of the following?
-Sedimentary
-Metamorphic
-Igneous
-all of the above.
All of the above.
Sedimentary elements are made up of broken down particles from many different substances. Sedimentary rock forms when multiple particles lump together to make a larger particle until it becomes highly visible and large. For example,
The Mississippi River carries sediment from upstream (typically soil from the dryer parts of the USA) and that sediment gathers into levee's which help protect the coast of Louisiana and the Gulf of Mexico.
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Which of these levels of biological organization contains the other three?
A. Organ
B. Organ system
C. Tissue
D. Cell
what is the difference between passive transport and active transport
Explain why the Sun's energy is considered a natural resource. Also explain if it is renewable or nonrenewable.
Explanation:
It's considered a natural resource because it is energy that is not man made.
It's a renewable energy because it naturally gets replaced.
If a strand of DNA has 22% Cytosine, what would be the percent of Guanine? typ
Answer:
22%
Explanation:
Cytosine and Guanine complements each other.
Which of the following is NOT a function of fat in animals?
A. protection
B. energy storage
C. insulation
D. movement
Answer:
D. Movement.
Explanation:
D. Movement.
Movement of individuals into a population is referred to as:
emigration
death
immigration
population density
The process of protein synthesis occurs in what part of a cell?
Click the answer you think is right.
Nucleolus
Nucleus
Cytoplasm
Mitochondria
1-Brown eyes (B) are dominant to blue eyes (b). Straight hair (H) is dominant to curly hair (h). Free earlobes (E) are dominant to attached earlobes (e). If individual one who has the genotype BbHhEe is crossed with individual two who has the genotype bbhhEe, what is the probability that their offspring has brown eyes, straight hair, and attached earlobes?(I asked last time but I didn't get a serious answer, please make your answers as one percentage.)
Answer:
The correct answer would be - 1/16 or 6.25% is the probability that their offspring has brown eyes, straight hair, and attached earlobes
Explanation:
In this question, it is given that-
1. Brown eyes (B) are dominant to blue eyes (b)
2. Straight hair (H) is dominant to curly hair (h)
3. Free earlobes (E) are dominant to attached earlobes (e)
Now the cross between BbHhEe (Brown eyes-straight hair-free earlobe) with bbhhEe (blue eyes-curly hair-free earlobe) takes place.
Gametes will be -
BbHhEe - BHE, BhE, Bhe, BHe, bHE, bHe, bhE, bhe
bbhhEe - bhE, bhe
cross would be -
BHE BhE Bhe BHe bHE bHe bhE bhe
bhE BbHhEE BbhhEE BbhhEe BbHhEe bbHhEE bbHhEe bbhhEE bbhhEe
bhe BbHhEe BbhhEe Bbhhee BbHhee bbHhEe bbHhEe bbhhEe bbhhee
By the Punnett cross, we get only one out of 16 offspring with brown eyes, straight hair, and attached earlobes
Thus, the correct answer would be - 1/16 or 6.25% is the probability that their offspring has brown eyes, straight hair, and attached earlobes
PLEASE HELP ME !!!!!
Answer:
1. negatively charged ion
Explanation:
how does tannin leave the cell
Answer:
Explanation: Maceration is one of the techniques used for tannin extraction from medicinal plants. Maceration is the simplest technique of extraction where the plant powder is placed in a closed vessel and soaked with the corresponding amount of solvent for a specified period of time until the tannins are dissolved in the solvent.
17. (05.06 LC)
A person drives her own personal vehicle to work two days of the week. Her commute to and from work is 42 miles a day, and her car averages 28 miles per gallon? How much gasoline
is the person conserving a day if she takes the train instead? (5 points)
O 1.5 gallons per day
O 3.0 gallons per day
O 4.5 gallons per day
0 5.5 gallons per day
Answer:
The correct answer is - 1.5 gallons per day.
Explanation:
Given:
Distance traveled by a person: 42 miles a day
Average of gasoline used - 28 miles/gallon
Solution:
Daily consumption = distance traveled/ average consumption
Placing the value in the formula
= 42/28
= 1.5
Thus, the correct answer is - 1.5 gallons per day conserved.
What is the difference between a codon and an anticodon?
Answer: A codon is the triplet sequence in the messenger RNA (mRNA) transcript which specifies a corresponding amino acid (or a start or stop command). An anticodon is the corresponding triplet sequence on the transfer RNA (tRNA) which brings in the specific amino acid to the ribosome during translation.
The granite boulders in Rocky Mountain National Park are a favored place among talented climbers who specialize in the art of bouldering, or climbing harder (but shorter) routes without tying into a rope. Climbers have taken to (illegally) stashing foam crash pads underneath the boulders but marmots and other rodents chew up the pads and the litter is spread by the wind. Why would the park be overused in this manner
Answer:
Follows are the solution to this question:
Explanation:
The National Park for Rocky Mountain is among the nation's best popular national parks. Rich fauna wandering the valley and also some derisive recreational sports on the planet including its majestic peaks throughout every way is no surprise that each year upwards of 3.5 million people flocks to this park. Throughout this issue, the park would be overplayed as described, since the marginal private expense of using the parks is less than those of using the park at a marginal cost.
Hypersecretion of growth hormone after normal growth has ceased may cause
acromegaly
achondroplastic dwarfism
pituitary dwarfism
gigantism
Answer:
gigantism
Explanation:
The growth hormone is responsible for stimulating normal growth in humans or in other words, stimulating growth at a normal pace. To do this, the growth hormone must be released in optimal quantities, however, an hypersecretion i.e. excessive release of the hormone will cause a fast and uncontrollable growth in certain regions of their body or the whole.
This abnormal excessive growth caused by an excessive release of the growth hormone is called GIGANTISM. Gigantism occurs mostly in children at their growing phase.
Describe what might happen to an amino group or a carboxyl group of an amino acid, if that amino acid is placed into water.
Answer:
Amino acids are the monomers that makeup proteins. This amino acid is unionized, but if it were placed in water at pH 7, its amino group would pick up another hydrogen and a positive charge, and the hydroxyl in its carboxyl group would lose and hydrogen and gain a negative charge.
Explanation:
Each amino acid has the same fundamental structure, which consists of a central carbon atom, also known as the alpha (α) carbon, bonded to an amino group (NH2), a carboxyl group (COOH), and to a hydrogen atom. In the aqueous environment of the cell, both the amino group and the carboxyl group are ionized under physiological conditions, and so have the structures -NH3+ and -COO–, respectively. Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. This R group, or side chain, gives each amino acid protein-specific characteristics, including size, polarity, and pH.
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Brain-List?
Gregor Mendel experimented with patterns of inheritance in the 1800s. His work
is the foundation for much of what we know about inheritance today. Which of
these would be evidence that would MOST strengthen the theories developed
by Mendel?
A) two solid brown dogs having a little of solid brow puppies
B) plant that are pollinated by insects that produce edible fruit
C) Fossil found that shows many types of dinosaurs lived at the same time
D) Similar types of plants found on
Different continents
Answer:
A
Explanation:
Gregor Mendel was the “Father of Modern Genetics”, he studied genetics and traits by inheritance.
Massive stars end their lives in a huge explosion called what?
Answer:
The death of a star the results in an explosion is called a Super Nova.
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a special structure used for cells movement about plants ang animals
What happens when two or more substances mix together? A. The properties of the mixture will always have the same properties as the original substances. B. The mixture will always be in a different state of matter than the original substances. C. The properties of the mixture may be different from those of the original substances. D. The mixture will always be the same color as the original substances.
Answer:
C. The properties of the mixture may be different from those of the original substances
Explanation:
Observe the given figures carefully and answer the following questions.(a) The amount of CO2 be the highest in which jar. Why?(b) The amount of CO2 be the lowest in which one and why?
Answer:
a) Jar C, b) Jar A
Explanation:
a) The amount of CO2 is the highest in jar C because it only contains CO2-producing organisms: mice. A plant in the same jar, like in jar B, would counteract this CO2 production by using it to produce oxygen, which would balance it out.
b) Jar A has the lowest amount of CO2 because the plant is by itself only producing oxygen. There is no life form in jar b that produces CO2.
Which part of the DNA nucleotide contains the genetic code to make the protein?
a) deoxyribose sugar
b) phosphate group
c) nitrogenous base
Answer:
nitrogenous base
Explanation:
Purines and primidens are the two types of nitrogens.basis in nuclic acid,breifly explain both of them
Answer:
Pyrimidines
Uracil = 2,4-dioxy pyrimidine
Thymine = 2,4-dioxy-5-methyl pyrimidine
Cytosine = 2-oxy-4-amino pyrimidine
Orotic acid = 2,4-dioxy-6-carboxy pyrimidine
Polynucleotides
Nucleotides are joined together by 3'-5' phosphodiester bonds to form polynucleotides. Polymerization of ribonucleotides will produce an RNA while polymerization of deoxyribonucleotides leads to DNA.
https://library.med.utah.edu/NetBiochem/pupyr/pupy15.gif
Explanation:
why RNA is always single stranded and DNA is double stranded
Answer:
The DNA is very stable in it's double helix form. RNAs are relatively unstable and easy to degrade because they are single stranded. They are single- stranded so that translational proteins may read then and produce proteins.
Explanation:
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