Natural Selection is when traits are "naturally" selected for, because "survival of the fitttest." Example would be a species becoming bigger over time, because the smaller animals of that species were more likely to be eaten by predators. Natural selection is when the "best" trats are passed down due to chance
Selective breeding is if an outside forece (like a dog breeder) "chooses" a triat to be passed down. Example, instead of breeding a brown dog with a white dog, the breeder breeds two black dogs together in orer for the litter to all have black fur
1. What were the results from Chargaff's experiment? Select all that apply.
Multiple select question.
A)adenine binds with thymine
B)adenine binds with cytosine
C)cytosine binds with thymine
D)cytosine binds with guanine
E)adenine binds with guanine
F}thymine binds with guanine
Answer:
A,D
Explanation:
The results from Chargaff's experiment includes adenine binding with
thymine and cytosine binding with guanine.
Chargaff was a Scientist who performed various experiment using the DNA.
He discovered that DNA varied and had purine and pyrimidine bases.
He also discovered that the amount of cytosine should be equal to the
amount of guanine and that the amount of adenine must be equal to the
number of thymine and that both should be paired together.
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how is specific gravity extracted from the earth?
Answer:
The formula for specific gravity, given that the reference substance is water, is the density of the object divided by the density of the water.
what happens when there is a decrease in carbon dioxide during gas exchange in the body?
Answer:
Increased carbon dioxide means increased blood acidity, while decreased carbon dioxide means increased blood acidity.
The bicarbonate reaction is reversible, which allows bicarbonate to turn back into dissolved carbon dioxide to diffuse from the alveolus.
O Water is denser than isopropanol, so the water layer will always be below the isopropanol layer if they are both in the same container. What does this tell you about the make-up of the pigments for each specimen?
Answer:
One is polar and the other is non-polar.
Explanation:
The makeup of both water and isopropanol is different from each other due to their polar nature. Water is a polar substance means that it makes poles i.e. positive or negative while on the other hand, isopropanol is non-polar substance so due to this reason water and isopropanol make different layers. If both are polar or nonpolar substances so they will able to mix with each other.
The cacti in this environment survive by spreading out and growing apart from one another. Why do the cacti grow this way?
Answer:
b b b b b b b b
Explanation:
Answer:
B
Explanation:
We’re can the nuclear pore be found
Answer:
The nuclear pore is a protein-lined channel in the nuclear envelope
Explanation:
In what direction do substances diffuse across the cell
membrane?
Answer:
Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient." The end result of diffusion is an equal concentration, or equilibrium, of molecules on both sides of the membrane.
Explanation:
What is used to regulate gas intake and output with a plant?
Answer-
The plants stomata!
Stomata regulate transpiration and CO2 intake by changing its size depending on the environmental signals. In optimum conditions, stomata are wide open, allowing gaseous exchange with the atmosphere.
Which characteristic of an element determines its placement in the periodic table? O A. number of protons O B. size O C. mass O D. number of neutrons
Answer:
it gonna be A. Number of protons
Explanation
Elements are placed in order on the periodic table based on their atomic number, how many protons they have.
4. There are two types of traits within a population. What vocabulary word does
this represent?
*
Overproduction
Variation
Descent with Modification
Adaptation
Answer:
The answer is Descent with Modification
Descent with Modification refers to the passing on of traits from parent organisms to their offspring. This passing on of traits is known as heredity, and the basic unit of the heredity is the gene.
A person’s rate of oxygen intake and carbon dioxide output are increased. Which of the following most likely happened?
a.The person went to sleep
b.The person ate some food
c.The person started running
d.The person sat down
Answer:
C. The person started running
Explanation:
Your heart rate and breathing increases dramatically during exercise. Also, none of the other answer choices make sense.
Which of the following is NOT a benefit of using fracking?
A. It allows use of formerly trapped resources.
B. It uses fresh water which can become be polluted.
C. It has allowed countries like the US to become more energy independent.
D. It has increased the supply of energy resources.
What molecule on the side of the DNA ladder do the nitrogenous bases bond to?
1. Ribose sugar
2. Amino acids
3. Phosphate groups
4. Deoxyribose sugar
The initial step in the formation of an aminoacyl-tRNA is Group of answer choices esterification of the tRNA activation of the tRNA by reaction with ATP activation of the amino acid by reaction with ATP interaction of the mRNA with the tRNA
Answer:
The initial step in the formation of an aminoacyl-tRNA is activation of the amino acid by reaction with ATP
Explanation:
In protein synthesis, the first step involves the formation of an aminoacyl-tRNA. This reaction is catalyzed by the the Mg²⁺-dependent enzymes known as aminoacyl t-RNA synthetases and occurs in two steps.
The first step of the reaction of the formation of an aminoacyl-tRNA is the activation of the amino acid by the attachment of an AMP molecule formed from the hydrolysis of ATP to AMP and pyrophosphate. The aminoacyl adenylate intermediate is bound to the enzyme in this initial step. Subsequently, in the second step of the activation of the amino acid, the aminoacyl adenylate intermediate is then transferred to its specific tRNA. The pyrophosphate formed in the first step is hydrolyzed to 2 phosphate molecules by a pyrophosphatase.
The overall reaction step is illustrated below:
Amino acid + tRNA + ATP -----> aminoacyl-tRNA +AMP + 2Pi
What type of galaxies do scientist believe to be the youngest in our universe
A. Rich galaxies
B. Nuclear galaxies
C. Spiral galaxies
D. Irregular galaxies
Answer:
C. Spiral Galaxies is the answer
Answer:
spiral galaxies
Explanation:
The organization of similar organisms into groups helps scientists understand how living things are related. It
also allows scientists to communicate about all forms of life. Scientists organize the living world using a process
called taxonomy, which is the science of classifying organisms based on shared structures, functions, and
relationships to other organisms. Scientists use a branching system of classification, and over the years, due to
new discoveries, the branching system has changed and grown.
Recently, scientists broadened the branching system of classification. Currently, the broadest group is the
A)
class
B)
domain
kingdom
D)
taxon
taxon
Answer:
Explanation:
THE ANSWER IS DOMAIN
cooling low level of atmosphere
Answer:
yes low level of atmosphere will not warm. so its cooling
Goats are outside living on the sides of steep mountains. They are eating the
grass and bushes that grow there. It's a clear, sunny day on the mountainside.
What is happening to the carbon dioxide in the air? Is it ONLY being released (as a
product), ONLY absorbed (as a reactant), or being released AND absorbed?
CO2 is being both released by goats in exchange for O2 and absorbed by the plants in exchange for O2, too
A red frog and a blue frog mate and have offspring. If the gene is Codominant, what will be the color of their offspring?
Answer:
The correct answer is - blue and red both.
Explanation:
Codominance is the type of inheritance pattern in which alleles interact differently with one other. In this type of inheritance, neither allele is dominant or recessive and both traits are visible in the progeny if both alleles are present together in heterozygous conditions.
Here, in this case, Red frog and the blue frog are in codominance so the cross of these frogs leads to both colors that will be express in offspring together.
RR mate with BB
R R
B RB RB
B RB RB
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Answer:
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___1. Organisms that make their own food A. Chloroplasts
___ 2. Site of photosynthesis B. Aerobic
___ 3. Organism that must consume other organisms C. Glucose
to obtain energy. D. Mitochondria
___ 4. C6H12O6 E. Glycolysis
___ 5. Process requires oxygen F. Cytoplasm
___ 6. Adenosine diphosphate G. ADP
___ 7. During aerobic respiration, the most ATP H. Autotrophs
is produced during this process. I. ATP
___ 8. The anaerobic process of splitting glucose J. Anaerobic
and forming two molecules of pyruvic acid K. Electron Transport Chain
___ 9. Place where glycolysis occurs L. Heterotroph
___10. Place where the Krebs cycle occurs M. Mitochondria
___11. Process does not require oxygen
___12. Energy storing molecule
Answer:
___ 1. Organisms that make their own food
H. Autotrophs
___ 2. Site of photosynthesis
A. Chloroplasts
___ 3. Organism that must consume other organisms to obtain energy.
L. Heterotroph
___ 4. C6H12O6
C. Glucose
___ 5. Process requires oxygen
B. Aerobic
___ 6. Adenosine diphosphate
G. ADP
___ 7. During aerobic respiration, the most ATP is produced during this process.
K. Electron Transport Chain
___ 8. The anaerobic process of splitting glucose and forming two molecules of pyruvic acid
E. Glycolysis
___ 9. Place where glycolysis occurs
F. Cytoplasm
___10. Place where the Krebs cycle occurs
D. Mitochondria
___11. Process does not require oxygen
J. Anaerobic
___12. Energy storing molecule
I. ATP
Hey There!
Can you please help me with one question?
➠Who was Rosalind Franklin?
Please don't answer irrelevantly unless you wants to get reported or your account suspension.
Thanks
Answer:
Rosalind Franklin was a British chemist (1920 - 1958). She was best known for her contributions to the discovery of the molecular structure of deoxyribonucleic acid (DNA), a constituent of chromosomes that serves to encode genetic information.
Answer:
Rosalind Franklin was an English chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA, RNA, viruses, coal, and graphite
How does air pressure affect
breathing?
Answer:
When you inhale, muscles increase the size of your thoracic (chest) cavity and expand your lungs. This increases their volume, so pressure inside the lungs decreases. As a result, outside air rushes into the lungs. That's because a gas always flows from an area of higher to lower pressure.
Answer:
The air pressure in your lungs has to be less than the air outside your lungs, to get your lungs to inflate. This is because air moves from high pressure areas to low pressure areas. During bad weather and at high altitudes the air pressure is lower, making it harder for us to breathe.
CAN YOU PLZ ANSWER AND STOP WASTING MY POINT NOT TO BE RUDE... i will give brain whatever it calls just answer
Its apocrine glands. Please give me brainliest?
Determine whether each phrase describes the reproduction of polyps, medusae, or both.
usually reproduce asexually, but can reproduce sexually
reproduce in two stages; the first is sexual and the second is asexual
are able to reproduce sexually by releasing sperm and eggs
Answer:
1.) Polyps only
2.) Medusae Only
3.) Both
Explanation:
I did it on Edg and the other response is not even a response, so I decided to help you guys. You're welcome.
Answer:
A B C
Explanation:
1. What is the gradual change in populations over time?
2. What is the idea that species originate in small gradual steps over time?
1. Gradualism
2. evolution
Answer:1.Gradualism is an evolutionary model that refers to the tiny variations in an organism or in society that happen over time to make a better fit for animals and humans in their environment. These variations allow them to survive and thrive, resulting in a slow and consistent process of change in the whole population.
2.Phyletic gradualism is a model of evolution which theorizes that most speciation is slow, uniform and gradual. When evolution occurs in this mode, it is usually by the steady transformation of a whole species into a new one (through a process called anagenesis).
Explanation:
In order to change C to B to A, one would need to:
Keep the environment at a steady temperature Continue to increase the temperature of the environment
Continue to decrease the temperature of the environment
It is impossible to change C to B to A.
Answer:
im pretty sure "A"
Explanation:
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i need to find the parent genotypes and the all possible gametes for each parent
Answer:
6 of themmmmmmmmmmmmmmmm I thinkkk
What type of mutation is shown in the DNA strand to the right given the original strand.
Original strand - A A A T T C A T T ---> mutated strand - A A T T C A T T
Group of answer choices
deletion
insertion
translocation
Clifford is an astronomer who studies the movement of stars. What types of tools
does Clifford likely have in his office that help him study the movement of stars?
1) meter sticks and protractors
2) rubber bands and paper clips
3) rulers and measuring tapes
4)telescopes and cameras
Answer:
4. Telescopes and cameras
Explanation: