Answer:
The reason why it occurs is when the organism doesn't have the desirable traits it needs to survive.
Explanation:
There is a multitude of evidence that supports how life has changed over time due to variation in the gene pool of different species. Which of the following choices below represents a scientific theory that explains these changes? *
A. As environments and ecosystems change over time, those that acquire suitable traits are more likely to survive and reproduce and the gene pool changes because organisms must adapt to survive and reproduce.
B. As environments and ecosystems change over time, those with variations for traits that are more successful in the new conditions are more likely to survive and reproduce, thus changing the allele frequency in the gene pool.
C. Because the environments and ecosystems show little change over time, organisms are already adapted for surviving in their given habitats for which they are made.
D. Because the environments and ecosystem show little change of time, the organisms that choose to adapt to different environments will migrate and become suited for new habitats.
Answer: A. Environmental drivers plus genetic variation in the population result in natural selection
Explanation: over geological time environmental conditions change. Organisms do not survive in one environmental niche with traits adapted to a possible future change that might suit those traits. Adaptation is not a matter of choice: adapt if possible or go extinct.
There is a (badly named) concept called pre-adaptation, which is that variations in some existing trait render adaptation to a different environment more likely.
Answer:
A
Explanation:
The unicorn is a legendary creature that has been described as resembling a horse, with a single, spiraling horn in the center of its forehead. What role, if any, could the unicorn have in the science of biology?
A. The unicorn could be the subject of an investigation of horses.
B. The unicorn could be used to test new ideas about animal evolution.
C. The unicorn could provide data for the body structure of real animals.
D. The unicorn is not real and therefore has no role in biological investigations.
E. The unicorn can only be used when describing theories.
Answer:
d
Explanation:
Answer: D
Explanation: "legendary creature that has been described" A unicorn has never physically been seen
Anumber of organelles allow the cell to producce and distribute proteins Rearrange the statements below to show the correct sequence of how cells produce and
distribute proteins in eukaryotic cells Place the first step on the left and so on.
L Proteins are modified on the rough endoplasmic reticulum
IL Proteins are assembled on ribosomes
IL. Proteins are modiied, sorted, and packaged in the Golgi apparatus
Please answer
Answer:
Proteins are assembled on ribosomes
proteins are modified on the rough ER
proteins are modified, sorted, and packaged in the Golgi apparatus
Explanation:
The right arrangement is II,I,III
Proteins are assembled on Ribosomes
Proteins are modified on the rough ER
Proteins are modified, sorted, and packaged in the Golgi apparatus
What is a ribososme?Ribosomes, also called Palad granules (after their discoverer George Palade, for their granular structure), are macromolecular machinery found in all cells that perform biological protein synthesis (mRNA translation).Ribosomes join amino acids in an order determined by the codons of the messenger RNA (mRNA) molecule to form a polypeptide chain. Ribosomes are composed of two major components, the large and small ribosomal subunits.Each subunit is composed of one or more ribosomal RNA (rRNA) molecules and many ribosomal proteins (RPs or r-proteins).Ribosomes and related molecules are also known as the translational apparatus.The ribosome is a ribonucleoprotein complex because it is composed of a complex of RNA and protein.Each ribosome is composed of smaller (30S) and larger (50S) building blocks called subunits.
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Many biotic factors affect individuals in a population. An example of an organism being directly affected by a biotic factor is
Answer:
an example of an organism being directly affected by a biotic factor is
a wood pecker makes holes in a trees bark and that allows insects into the tree killing it the biotic factors are the wood pecker and the insects the affected organism is the tree
Explanation:
Read this speech given by US Secretary of Defense Chuck Hagel on Veterans Day 2014. What is the purpose of the speech?
Every year, we set aside Veterans Day to honor all the men and women who’ve served our country in uniform. We celebrate veterans from generations past. We welcome a new generation of veterans home from war. And we thank our future veterans, still serving at home and abroad.
They are securing our nation through their engagement across the globe. Some are in West Africa, contributing to the global effort to stop the spread of Ebola. Some are in the Middle East, working closely with our coalition partners in the fight against ISIL. And some are in Afghanistan, where next month the United States will responsibly end the longest war in our history.
For our troops serving around the world today, and those transitioning out of the military, our obligations are only beginning. Taking care of them, and their families, is a sacred responsibility we must always uphold.
Let’s celebrate them by telling their stories. Let’s help those who need it, while supporting their strength and resilience. And let’s honor our veterans by creating new opportunities for them to contribute after their service, so they can continue making a difference in the world.
To all our veterans—thank you. Thank you for everything you’ve done for our country. You’re among the best our nation has to offer. God bless you and your families, and happy Veterans Day.
A.
to express gratitude to US veterans
B.
to inform the country where veterans are stationed
C.
to persuade Americans to show their gratitude to veterans
D.
to support the families and friends of US veterans
Answer:
A. to express gratitude to US veterans!
Explanation:
The main purpose of the speech is to express gratitude to US veterans. The correct option is A.
What is Veterans Day?Veterans Day (formally renowned as Armistice Day) is a federal holiday witnessed annually on November 11 in the United States.
It is basically to honor military veterans of the United States Armed Forces who have been released under conditions other than morally reprehensible.
Veterans Day is a great chance to publicly recognize the contributions of living veterans and express gratitude to them.
But, in addition to the free meals, discounts, tributes, and platitudes bestowed upon veterans on this day, there is an opportunity to truly express your gratitude.
In the give speech, the US Secretary of Defense Chuck Hagel is expressing his views for the Veterans and is expressing his gratitude towards them.
Thus, the correct option is A.
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I NEED HELP PLEASE!!!
Answer:
I believe it is convergent boundaries
Explanation:
Answer:
C convergent boundaries
3. What things does your body do automatically to cool down or warm up?
Answer:
For your body to cool down one method is to sweat.
Explanation: Your sweat glands release sweat, which cools your skin as it evaporates. This helps lower your internal temperature
To keep warm your body shivers and your blood pressure decrease, it brings the blood back to the heart to keep you warm, also in you blood, your hormones create glucungons that makes the liver shoot out glucose to keep you warm. To keep cool you body sweats and in you blood the hormones create something called insulin that makes you cell take in the glucose in you blood.(Fun Fact: the things that I just said are negative feedback).
Please help I need it ASAP!!
what is meant by the term VO2 max
Answer:
VO2 max is the maximum volume of oxygen you can consume per minute per kilogram of body weight at your maximum performance. VO2 max is an indication of aerobic fitness and should increase as your level of fitness improves.
Answer:
VO2 is the maximum oxygen uptake.
Explanation:
VO2 is the maximum oxygen consumption during incremental exercise.
The modern industrial agricultural practice that has resulted in high yields but with a loss in biodiversity is:
Answer: Monoculture
Explanation:
One type of crop at a time in one specific field. "Mono" means one.
Which choice tells the main causes of convection currents in the asthenosphere?
A.
density and temperature
B.
temperature and pressure
C.
density and weight
D.
weight and pressure
Answer:
B. Temperature and pressure
Explanation:
Answer: B.
density and temperature
Explanation:
took my test got an 80 cus of the other answer
4. Which is produced in cellular respiration? A. Carbon dioxide B. Oxygen C. Sugar
Answer: A
Explanation:
During cellular respiration, a glucose molecule is gradually broken down into carbon dioxide and water.
true or false , the mRNA codon UGG is the only codon that codes for the amino acid tryptophan
Answer:
true
Explanation:
In muscle tissue, what is the reactant of lactic acid fermentation and the product that builds up during intense exercise?
The reactant of lactic acid fermentation and the product that builds up during intense exercise is glucose.
Homolactic Fermentation in Muscle CellsLactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars are converted into cellular energy and the metabolite lactate, which is lactic acid in solution. Glucose is the simple sugar reactant used in this type of homolactic fermentation, instead of lactose used in the case of bacteria. This process of energy production is employed by muscle cells when oxygen levels are low, such as during periods of extreme exercise.Learn more:
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Cellulose is made by combining which of the following molecules together?
Answer:
Cellulose is a polysaccharide composed of a linear chain of β-1,4 linked d-glucose units with a degree of polymerization ranged from several hundreds to over ten thousands, which is the most abundant organic polymer on the earth.
In humans, mitosis produces cells with ____ chromosomes and _____ chromosomes are found in the gametes after Meiosis.
Answer:
46, 23
Explanation:
Is Octane a mIxture??
Answer:
No
Explanation:
Octane is a straight-chain alkane composed of 8 carbon atoms. Octane is a colorless liquid with an odor of gasoline. Less dense than water and insoluble in water.
Answer:
Octane is a straight chain alkane made up of eight carbon atoms. ... N-octane is a colorless liquid with a diesel scent. Less thick than water, insoluble in water.
Explanation:
Description: Octane is a chain alkane.
Molecular formulas: C8H18 or CH3-(CH2)6-CH3
1) Organisms reproduce either sexually or asexually. Asexual
reproduction is the reproductive process in which offspring have only
one parent. Sexual reproduction involves two parents who combine
their genetic material to produce a new offspring. Which of the
pictures show asexual reproduction
A) A&B
B) B&C
C) C&D
D) A,B, & C
Answer: NO BLOODY PICTURE. I never get the picture, diagram whatever, so why do I get the question?
Explanation:
Which statement best explains the relationship between cellular respiration and photosynthesis?
When you use the same histone protein as your standard, you determine the histone protein concentration to be 5 mg/ml. Explain the discrepancy (pick ONE answer): (5 points) a. The histone protein has fewer basic amino acids than albumin. b. The histone protein has more acidic amino acids than albumin c. The histone protein has more basic amino acids than albumin d. The histone protein contains more methionine than albumin
Answer:
A. The histone protein has fewer basic amino acids than albumin
Note: The question is incomplete. The complete question is given below:
You use the Bradford (coomassie) assay to determine the concentration of a whey protein. You use bovine albumin as your standard. You determine the histone protein concentration to be 3 mg/ml. When you use the same whey protein as your standard, you determine the histone protein concentration to be 5 mg/ml. Explain the discrepancy (pick ONE answer): (2 points) The histone protein has fewer basic amino acids than albumin. The histone protein has more acidic amino acids than albumin c. The histone protein has more basic amino acids than albumin d. The histone protein contains more methionine than albumin
Explanation:
The Bradford assay measures the concentration of proteins in a a protein sample using a color change that occurs from brown to blue when the protein in the sample binds to Coomassie dye. The Coomassie dye specifically binds to basic and aromatic amino acids in the protein. A standard curve is created using absorbance data from samples of proteins of known concentrations. The spectrophotometer is set to read at 595 nm in the Bradford assay as the peak absorbance of Coomassie Blue once bound to proteins occurs at 595 nm.
The higher the concentration of proteins, the higher the color intensity and the higher the absorbance values.
Since when bovine serum albumin was used as standard, the sample protein concentration was lesser than when the protein sample was used as standard, this means that the sample protein binds less to Coomassie dye as a standard thereby giving a higher sample protein concentration than the BSA standard. Therefore, the histone protein has fewer basic amino acids than albumin.
Brainliest Which of the following best explains how most plants grow? *
Plants store the excess oxygen they produce, resulting in them gaining mass
Plants store the excess glucose they produce, resulting in them gaining mass
Plants store the excess carbon dioxide they produce, resulting in them gaining mass
Plants store the excess water they produce, resulting in them gaining mass
Answer:
plants store the glucose they produce, resulting in them gaining mass. that should be the correct answer
How is Gypsy’s story related to psychology?
Answer:
Gypsy’s story is directly related to psychology.
Explanation:
Gypsy’s story is related to psychology because according to her mother who said that her daughter Gypsy Rose suffering from leukemia, and mental disorder but this claim of her mother proved wrong when the full health check up of Gypsy Rose was held. The doctors said that she was psychologically torture by her mother which leads to the killing of her mother.
Which of the following statements is true?
Mitosis produces four identical daughter cells from one parent cell.
Sexual reproduction occurs much more quickly than asexual reproduction.
Meiosis creates four nonidentical daughter cells from one parent cell.
Asexual reproduction occurs when an egg cell is fertilized by a sperm cell.
Answer:
Meiosis creates four nonidentical daughter cells from one parent cell.
Explanation:
Mitosis produces TWO identical daughter cells from one parent cell. This one is vice versa, Sexual reproduction occurs much more SLOWLY than asexual reproduction. Asexual reproduction occurs quickly. SEXUAL REPRODUCTION occurs when an egg cell is fertilized by a sperm cell.
Answer:
He is correct!
Explanation:
What type of connective tissue surrounds each indivdual myocyte?
Answer:
areolar connective tissue
Explanation:
The endomysium, meaning within the muscle, is a wispy layer of areolar connective tissue that ensheaths each individual myocyte (muscle fiber, or muscle cell).
8. Why did Ofelia and Marcus keep everything the same for the plants except for the type of fertilizers?
a. They didn't know how to make an experiment.
b. They included many different independent variables.
c. They used constants/controlled varjables so only the independent variable was different.
d. They included many different dependent variables.
Answer:
b. They included many different dependent variables.
Explanation:
Changing something that does not matter is called a dependent variable.
also to me at least that's the only one that makes sense
I need help. Thanks!
Answer:
They bounce around and take form of the container
Explanation:
a nucleotide is a phosphate-sugar nitrogen base. true or false
Answer:
true
Explanation:
nucleotides are made of a phosphate group, deoxyribose sugar and a nitrogenous base
If the moon moves farther away from the earth the earths oceans will experience what? 
Answer:
flatten out, less waves, become more calm, no more tides
Explanation:
research on obesity rates and genetically based skin color illustrate different types of biological change because
Explanation:
research on obesity rates and genetically based skin color illustrate different types of biological change because obesity rates demonstrate an evoked cultural response; genetically based skin color does not.
A mutation is a (chance) of genetic material.
Many mutations are (neutral) (meaning not helpful nor harmful)
mutations Insertions and deletions are (?)
Answer:
An insertion changes the number of DNA bases in a gene by adding a piece of DNA. As a result, the protein made by the gene may not function properly. Deletion. ... This type of mutation occurs when the addition or loss of DNA bases changes a gene's reading frame.