Answer:
A. Archaea have DNA that is not in a nucleus.
Explanation:
Archaea do not have a nucleus thus their DNA is in cytoplasm where as Eukarya have a full fledged nucleus
Answer:
A. Archaea have DNA that is not in a nucleus.
Explanation:
Eukaryotes are the organisms that have well defined membrane bound nucleus and other membrane bound organelles in their cells. The domain eukarya include both unicellular and multicellular organisms. Archaea include the unicellular prokaryotic organisms that lack the membrane bound nucleus and membrane bound organelles.
hope this helped!
Which processes are affected by freeze and thaw cycles? Check all that apply.
creep
deposition
landslide
slump
weathering
A scientist has sequenced a gene from a multicellular eukaryotic organism. Brendan claims that by analyzing the gene sequence and applying
the genetic code, he can conclude the sequence of amino acids in the protein that forms after the gene is transcribed and translated
Which statement provides the strongest evidence against the validity of Brendan's claim?
A. Regulatory proteins may activate or deactivate a gene, often by very complex mechanisms.
B. During transcription, a strand of mRNA is synthesized from complementary base pairs, with the substitution of uracil (U) for thymine
(T)
C. During translation, anticodons on tRNA bind to codons on mRNA as part of the process that forms the polypeptide.
D. After a gene is transcribed, introns are removed from the pre-mRNA to form the mRNA that is translated.
Answer:
D. After a gene is transcribed, introns are removed from the pre-mRNA to form the mRNA that is translated.
Explanation:
According to this question, a gene was sequenced by scientists from an eukaryotic organism. Brendan claims he can conclude the resulting protein after the transcription and trans of the gene.
It is true that transcription and translation are the processes that a gene undergo in order to be expressed i.e. produce protein. However, a gene sequence contains both the coding and non-coding regions in it. The coding regions code for a protein and are called EXONS in the mRNA while the non-coding regions do not encode proteins and are called INTRONS in the mRNA.
These introns are removed from the mRNA molecule that results from the transcription of a gene. The mRNA undergoes a process called SPLICING, which removes the non-coding part of the mRNA (introns) and joins the coding parts (exons).
Hence, if this occurs, Brendan will not be able to accurately conclude the resulting protein from that gene sequence because a portion of that gene will still be removed during SPLICING of post-transcriptional processing.
As the trait is dominant and controlled by a single gene, the mutation must have occurred on both
diploid copies. True or false?
1
What occurs when the moon casts its shadow on Earth?
lunar eclipse
sidereal month
synodic month
solar eclipse
Answer:
Solar eclipse
Explanation:
When the
When the moon casts its shadow on Earth, a lunar eclipse occurs.
The last option is correct.
How do we explain?A lunar eclipse happens when the Earth's shadow falls on the moon. This can only happen during a full moon, when the sun, Earth, and moon are perfectly aligned.
The Earth's shadow has two parts: the umbra and the penumbra. The umbra is the darkest part of the shadow, and it is where the moon will completely disappear. The penumbra is the lighter part of the shadow, and it is where the moon will only partially disappear.
Therefore, the last option is correct.
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sarah travel to the beach that was 125 miles away for 2.2 hours . what speed was she driving ?
Answer:
56.8mph
Explanation:
Answer:
She was going about 56.82 mph
Explanation:
Divide 125 by 2.2 to know her mileage per hour
125÷2.2≈56.82
Which element is considered the most versatile element in living organisms and why?
Answer:
Carbon
Explanation:
Answer:
C: carbon, because it can bond with many elements to form complex molecules
Explanation:
Are pictures of relationships
An experiment was designed to investigate the effect of caffeine on the rate of the
heartbeat of fruit flies. Two populations of fruit flies were grown in a lab. Both
populations were raised drinking the same type of water and the same type of food.
Both populations were exposed to the same amount of light and regulated
temperature at 20 degrees Celsius. The fruit flies' heartbeats were then monitored
at two hour intervals. The fruit flies of population one were given caffeine five
minutes before their heartbeat was checked. The fruit flies of population two
were not given any caffeine.
what is the control variable
what is the expirimental group
what is the independent variable
Name a controlled variable or constant
was quantitive or qualitative data collected
Which statements describe the importance of the
six elements found in all living things? Check all
that apply
Answer:
The answer is A. For the record, It's been a couple years since I took bio, but a quick google search did a refresher for me. If you're looking for an answer quickly it might be a better idea to just search it that way, I love this site, don't get me wrong, it can just be slow.
Explanation:
How could this mRNA sequence support a triplet code? ACACACACACAC
When the triplet code ACACACACACAC is translated in such conditions, it will produce a polypeptide chain consisting of multiple copies of only one type of amino acid. I hope my answer has come to your help
Answer:
split it up.
Explanation:
ACAC ACAC ACAC
__________ are the methods of reproduction.
Sexual & Gamete
Sexual & Asexual
Asexual & Monosexual
Asexual & Respiratory
Answer:
The answer is sexual and asexual.
n this lab, you will simulate birds with three different beaks. After watching the birds feed, you will remove fruit to simulate a change in the environment. What question are you answering by doing this observation? Write it by filling in the blanks below.
What is the effect of…
…on…
Answer:
BOX 1: The independent variable is the type of food available.
BOX 2: The dependent variable is the frequency of each type of beak (or number of birds with each beak type).
Explanation:
TRUST ME BRO
Can u please help me .
Answer: lizards
Explanation:
Answer:
birds
Explanation:
because some birds such as owls, hawks, falcons, herons, etc. eat snakes.
What is a thesis statement?
A. a statement of purpose
b. statement of fact
C.
an observation related to the work
D.
a neutral point with minimum scope for debate
Answer:
statement of purpose
Explanation:
BIOLOGY EXPERTS HELP!!! Which of the following examples poses the greatest potential threat to an ecosystem’s biodiversity?
a) Abandoned farmland is allowed to go fallow and begins to fill in with weeds, shrubs, and saplings.
b) A nonnative species of bee is introduced to prey on the introduced species of fire ants in the Southern United States.
c) A monoculture of fir trees is planted on land that was once clear cut from deforestation.
d) The trapping and relocating of wolves poses a threat as they move into areas of high human population.
Answer:
b) A nonnative species of bee is introduced to prey on the introduced species of fire ants in the Southern United States.
Explanation:
:)
If carbon in the atmosphere increase will carbon on earth increase too?
Answer:
When carbon dioxide concentrations rise, air temperatures go up
When carbon dioxide concentrations rise, air temperatures go up, and more water vapor evaporates into the atmosphere—which then amplifies greenhouse heating.
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 did plants produce in Priestley's experiments that allowed a candle to continue burning in a closed container?
A. Carbon dioxide
B. Glucose
C. Oxygen
D. Water
Describe what would happen to the abiotic factors within the ecosystem if the bacteria were eradicated from the ecosystem.
Answer: If a abiotic factor was to be removed from the ecosystem it can affect the entire ecosystem and all of the organisms that live there
Explanation:
Abiotic means which does not have life for example air, water, soil. Absence of bacteria can influence the abiotic factors in adverse ways.
What are abiotic factors?Abiotic components plays a major role in ecosystem, while biotic components are dependent on abiotic factors for their survival.
Both abiotic and biotic factors are related to each other, if any of these factors changes, it will adversely affect the ecosystem.
For instance, if bacteria were eradicated from ecosystem, it will affect the functioning of abiotic components which can result in increased pH, decreased decomposition etc.
Thus, the abiotic factors will get affected adversely if bacteria were eradicated from the ecosystem.
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A red blood cell placed in distilled water will swell and burst due to the movement of Your answer: A.salt from the distilled water diffusing into the cell B.water molecules moving by osmosis into the cell C.water from the red blood cell moving into the distilled water
Answer:
B
Explanation:
Water moves from higher potential to lower potential i.e it moves from surounding to the cell.
An expiriment was done to determine if the rate at wich a patato cooked depended on the temperature of water in which it was boild. What are the independent and dependent variable??
Answer:
The independent variable is the potato and dependent variable will be the temperature
Explanation:
When this experiment is done it consider about the boiling rate of the temperature which it helps to cook the potato. in other words when you do this experiment you will try different temperature levels on the same type of vegetable which is a potato. so the variable called temperature will be dependent because its the variable that we change. and the variable called potato will be the independent.
A fault that is formed when compression causes the hanging wall to move over the foot wall is a(n)
Put the following list in order from beginning to end of a food chain.
1.Sun
2.rabbit
3.worm
4.grass
5.hawk
6.snake
Answer:
1-4-2-6-5-3
Explanation:
Hope it helps
Is this punnet square order correct?
Answer:
Yes
Explanation:
It doesn't matter if you do aA or Aa
A flower with alleles for both blue
and white has light blue petals. Both
alleles are dominant, however one
does not have dominance over the
other. This blending of colors is an
example of...
A. incomplete dominance.
B. codominance.
C. multiple alleles.
Inheritance of characters are based on Mendelian principle. According to it, the blending of phenotype is called incomplete dominance.
What is Mendelian principle?Gregor Mendel is known as father of modern genetics. For this Mendel performed experiment on pea plant.
The main principles of Mendelian genetics can be stated as follows:
Law of Independent assortment.Law of dominance.Law of segregation.When different alleles of parents blend to form a mixed colored organism, this is referred as incomplete dominance.
Thus, the correct option is A.
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Describe Lamarck’s idea about how organisms evolved. Use the giraffe’s neck as an example.
Answer
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
Lamarck believed that the stretching elongated the giraffe's neck, which became a useful characteristic and was passed onto future generations. This resulted in the length of the giraffe's neck increasing over time. It is now commonly accepted that Lamarck's ideas were wrong.
Is knowing about physical and chemical changes of food important for a molecular gastronomy chef?
Answer: Yes,
Explanation:
Molecular gastronomy can be defined as a scientific discipline that involves the study of physical and chemical processes that may occur while cooking food. The chefs who are concerned with molecular gastronomy apply their scientific knowledge while cooking. They observe and experiment the change in food appearance, color and fragrance after cooking and try to improve the three parameters to attract the customers.
As a colony of braconid wasps undergo metamorphosis, they live on a hornworm and digest its insides, causing the hornworm to die.This is an example of: Why:
Answer:
Paraitism.
Explanation:
By living on the hornworm and eating the insides, they harm it and cause it to die.
Why is it important that scientists haven’t identified a lokiarcheota as a cell yet?
What type of mountain ranges form at convergent plate boundaries
Answer: Cape Fold Mountains
Explanation:
