2. [1 mark]
Stargardt's disease, a genetic disorder that causes vision loss, is being treated using retinal
cells derived from human embryonic stem cells. Why are embryonic stem cells used?
A They are already specialized for this function
B. They are able to differentiate into the required cell type.
C. They retain stem cell properties after specialization
D. There are no ethical issues concerning their use.
Answer:
The correct answer is C
Explanation:
Threonine is a standard amino acid with a polar side chain.Identify the chiral centers in threonine. a. the carboxyl carbon b. the amino nitrogen c. carbon b d. carbon c e. carbon a
Answer:
Threonine has two chiral centers.
The correct options are c. carbon b and d. carbon c
Explanation:
Chiral centers are those that have four different groups of atoms bonded to it. Carbon a has three atoms of hydrogen attached to it so it can't be a chiral carbon. It isn't the carboxyl carbon either since it is double bonded to oxygen. And the amino nitrogen does not qualify anyway because it is bonded to three different groups of atoms, not four.
Lana is studying the deer that live in a forest. She concludes that all of the deer are members of the same
Choosely
because
they look alike and breed with one another. Next, she observes how the deer Choose...
Choose...
inter
and other
hydrosphere
living things of the forest Choose...
geosphere
ecosystem
species
Lana concludes that all of the deer in a forest are members of the same (geosphere / ecosystem / species / hydrosphere) because they look alike and breed with one another. She observes how the deer (population / community / ecosystem / biosphere) interacts with trees, wolves, and other living things of the forest (population / community / species / geosphere).
Answer:
1. Species
2. population
3. community
Explanation:
Given the available options. Here is the correct or full text that matches with the correct meanings.
Lana is studying the deer that lives in a forest. She concludes that all of the deer are members of the same SPECIES because they look alike and breed with one another. Next, she observes how the deer POPULATION interacts with trees, wolves, and other living things of the forest COMMUNITY
In the taxonomical classification system, similar organisms are grouped in a species that is capable of interbreeding and in exchange for their genetic materials.
The correct blanks are:
Blank 1: Species Blank 2: PopulationBlank 3: CommunityThe blanks can be explained as:
Deer's are organism that has similar characteristics and physical attributes and hence are grouped in species classification of taxonomy.A group of species is called a population that interacts with the biotic and abiotic factors like trees, wolves etc.The biotic and abiotic elements are part of the community or the ecosystem residing there. It makes up the food chain of the ecosystem.Therefore, the blanks are species, population and community.
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How are casts formed by decaying organisms?
Organisms turn into rock over time.
Organisms leave carbon residue on a rock.
Organisms leave impressions in sediment that hardens into rock.
Impressions left by organisms are filled in with sediment that hardens into rock.
Answer:
d
explanation: took the test
Answer:
D.Impressions left by organisms are filled in with sediment that hardens into rock.
Explanation:
edg 2022
What phrase describes a good scientific question? has a wide focus addresses a gap in knowledge does not lead to a testable hypothesis has a simple yes or no answer
Answer:
The correct answer is : addresses a gap in knowledge
Explanation:
A scientific question is an inquiry or question that may prompt a hypothesis and help us in explaining or the answering the reason behind the question by observation. A hypothesis is a speculative, testable response to a scientific question.
A proper scientific question has certain qualities.
It should be answerable but not in ye or no,
It should lead to testable hypothesis
prompts a speculation that is falsifiable
should focus on only the one aspect that is asked
Thus, the correct answer is : addresses a gap in knowledge
If I put 1 mole of substance A and 2 moles of substance B into 1 liter of water, which
of the following best describes what I have made?
A. 3M solution
B. This is impossible to calculate with 2 solutes
C. moles can't be put in water or they will drown
D. 1M substance A and 2M substance B solution
Answer:
c.moles can't be put in water or they will drown
Explanation:
Which contributes to the polarity of a water molecule?
Can there be wild hyenas in New Mexico?
if there is jungle than it can be.
But wild hyenas is found in south Africa.Answer:
Wild hyenas are found in some parts of Africa
Explanation:
So i don't think so unless you have one as a pet and for some reason it goes wild and escapes
What is the a simple heart central conflict?
Answer:
The central conflict in the book by Gustave Flaubert speaks to the inability of the housemaid to (after the death of her mistress) love (that is care for) herself when ironically she had given all her heart in the devotion to same.
Explanation:
Félicité -the housemaid is a characterised as a simple-minded, woman who although loyal to a fault suffers tremendous loss the loss is mostly psychological.
She is unable to bring herself to live a life outside the one which she had with her mistress. So as the very house where she and her mistress lived decays, so does her condition worsen.
Cheers!
Discuss the role of proteins in membrane structure and transport of molecules across the membrane?
The role of proteins in membrane structure and transport of molecules
across the membrane include the production of hydrophilic pores to aid
movement of molecules into the cell.
Proteins are organic substances found in cells which produce pores which
have a high affinity to water thereby allowing other important molecules
enter into the cell.
It is a very important feature of the cell membrane as it ensures there are
enough nutrient needed by the cell to prevent starvation and death.
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PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!! I'M REALLY BEHIND ON MY ASSIGNMENTS, AND NEED THE CORRECT ANSWER.
What is blood plasma exactly? I get confused between interstitial fluid, blood plasma, an actual blood..
Answer:
Blood Plasma is the pale yellow fluid of the blood that consists of water and its dissolved constituents, including especially proteins (such as albumin, fibrinogen, and globulin).
Explanation:
Answer:
Blood plasma is a fluid in a blood that carries the blood components throughout the body. Plasma is the largest part of blood almost 55 percent, wen plasma separated from the body is lightly yellowish liquid. Plasma carries water, salt and enzymes.Te main role of the plasma is to carry nutrients ,and hormone, and proteins to the parts of the body that need it. Blood celss also put their waste in the plasma, the plasma helps remove the waste from the body. Blood plasma also helps carry all parts of the blood through circulatory system.
Convert the following measurements to scientific notation format:
4.2 milliliters= ______?_______ x 10? liters
Scientific notations are used to write the numerical values in easier formats. The unit conversion of the volume can be written as 4.2 milliliters = 4.2 × 10³ liters.
What is scientific notation?Scientific notation has been the way to write the smaller and larger numbers in the form of coefficients and a base raised by the exponential powers. It uses decimal and base 10 to write the numerical values.
It is generally used to write the converted units that are larger or smaller. The exponential power to the base in scientific notation is non-zero integers and can be either positive or negative.
The units of volume can be converted from mL to liter as:
1 mL = 1000 liters
Given,
Volume = 4.2 milliliters
Converting units as:
1 mL = 1000 liters
4.2 mL = 4200 liters
It can be written in scientific notation format as: 4.2 × 10³ liters.
Therefore, the scientific notation is written as, 4.2 × 10³ liters.
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Fats are major components of the cell’s ____. a. membranes b. cytoplasm c. DNA d. ribosomes e. proteins
Answer:
membranes
Explanation:
What kind of questions do biologists attempt to answer?
Explanation:
Biologists attempt to answer questions about the living world.
When cells in an organism associate with each other, they form
O macromolecules.
O molecules.
O populations.
O atoms.
O tissues.
Answer:
O molecules.
Explanation:
They are any of numerous substances that are produced by cells and living organisms
When cells in an organism associate with each other, they form tissue.
What is a cell?Cells are the smallest, structural, and functional unit of life. It is the building block of an organism.
A tissue is a group of cells that have identical structures and that function together as a unit. When a number of cells in an organism associate with one another, they form tissues.
Therefore, when cells in an organism associate with each other, they form tissue.
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Which is the correct chemical equation for photosynthesis? 6CO2 + 6H2O ® C6H12O6 + 6O2 C6H12O6 + 6O2 ® 6CO2 + 6H2O 3CO2 + 3H2O + 3O2® C6H12O6 6O2 + 6H2O ® C6H12O6 + 6CO2
Answer:
[See Below]
Explanation:
Here's the equations for photosynthesis.
~Hope this helps Mate. If you need anything feel free to message me.
The eqation which reporesent Photosynthesis is 6CO2 + 6H2O ® C6H12O6 + 6O2
Photosynthesis is the process by which green plants manufacture their food(in form of sugar) using carbon dioxide and water in the presence of sunlight. This is possible because of the presence of chlorophyll which creates a medium to absorb the sun's energy. The Light energy formed then converts water and carbon dioxide into oxygen and sugars.
The chemical equation to represent the process is as follows
6CO2 + 6H2O ------> C6H12O6 + 6O2.
sunlight
Here, six molecules of carbon dioxide and six molecules of water reacts in the presence of light energy captured by chlorophyll from the sun to form sugar and six molecules of oxygen.
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Your doctor prescribed eye drops for you to treat a certain condition. You obtain the eye drop liquid medication in a small bottle containing a total volume 20 ml. Your instructions were to apply 2 drops in each eye at night. Given that the volume of 1 drop is 0.05 ml. Calculate many days will the eye drop liquid medication last?
Answer:
100 days
Explanation:
1 drop is .05 mL
2 drops are 0.1 mL BUT there are TWO EYES so 0.1mL x 2 = 0.2mL
the math would be 20mL x 1day/0.2mL = 100.
Your doctor prescribed eye drops for you to treat a certain condition. There will be 100 days that the eye drops liquid medication last.
What is liquid medication?Patients who have trouble swallowing tablets and capsules, such as children and the elderly, are more likely to utilize liquid medications. The several kinds of liquid medications include syrups, suspensions, and solutions.
The bottle has 20 ml of liquid
the dose is 2 drops per eye per day
one drop equals 0.05 ml
the average human being has 2 eyes (inferred)
Now let's see how much medicine we use in one day:
2 drops per eye per day
Substitute numbers for words:
2 x 0.05 x 2 = 0.2 ml used per day
How long will the bottle last?
20 ml ÷ 0.2 ml per day = 100 days
Therefore, the days will the eye drop liquid medication last are 100 days.
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How is weight affected by the location?
The gravitational pull varies slightly as one moves across the Earth’s surface, depending on latitude and topology, since the Earth isn’t a perfectly round ball.
The further away from the Earth an object is, the lighter it is. At the southern pole of the Earth, an object's mass is slightly greater than its mass at the equator because the Earth's polar radius is slightly smaller than its equatorial radius.
Body weight changes with altitude. Body weight changes as acceleration due to gravity changes. Weight decreases with altitude. The weight of an object changes with altitude.
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Suppose a doctor is asking whether eating carrots every day will improve his patients’ eyesight.
Answer:
No, that is just a myth. Carrots can provide vitamins, but not improve eyesight. Hope this helps!
Answer:
This is true but eating a lot of carrots can make your skin orange!
Explanation:
Which trait does a virus exhibit? A- it evolves B- it uses energy C-it grows and develops D- it is made of cells
Answer:
A- it evolves
They even tend to evolve faster than their hosts the humans .
Explanation:
1. It evolves
2.Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
3.A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
4.The host cell is destroyed during the lytic cycle.
5.They should get the flu vaccine because viruses mutate.
I hope this helped!
Sample Question:
The different properties and functions of carbohydrates, and other biological molecules, is due to
what?
A.
Their structures.
B.
Where they are found.
C.
They are inorganic molecules.
D.
Their bonds.
Answer:
d. Their bonds
Explanation:
Answer:
Their bonds
Explanation:
Nucleic Acids make up DNA. DNA, in turn, is used as a blueprint to make
Answer:
I believe its RNA
Explanation:
RNA is the new copy of DNA
Nucleic Acids make up DNA. DNA, in turn, is used as a blueprint to make RNA.
What is DNA?Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid.
The DNA of an individual can be found in almost all of their cells. DNA contains the bases adenine (A), cytosine (C), guanine (G), and thymine (T) (T).
All biological cells contain ribonucleic acid (RNA), a crucial biological macromolecule.
It plays a major role in the production of proteins by acting as a messenger for DNA, which in turn carries the genetic instructions necessary for life's growth and maintenance.
The DNA blueprint is first transcribed into RNA, another large macromolecule, to generate proteins.
To create proteins, ribosomes receive the exported RNA from the cell nucleus. The RNA sequence is read by ribosomes, which then use it as a template to make new protein molecules.
Thus, RNA is the molecule made from the blueprint of DNA.
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Why did most Italian architecture seem to be focused more on design than engineering?
a.
The patrons of the cathedrals wanted a more decorative style.
b.
Sculptors and painters were responsible for Italian architecture.
c.
Traditional Italian architecture had always been focused on design.
d.
All of the above
Answer:
B
Explanation:
on edge
Answer: ITS B
Explanation:
IM Right
Which has the most direct impact on evaporation in the water cycle?
O A. pollution
O B. temperature
O c. deforestation
O D. ozone depletion
Answer:
O D. ozone depletion.
Explanation:
O D. ozone depletion
What type of organic substances are fats
Which of the following is a function of nucleic acids?
Answer:
The functions of nucleic acids have to do with the storage and expression of genetic information.
Explanation:
If it is a multiple choice. Try to find the coomb functions mentioned above.
Answer:
The answer is:
Carrying the genetic information of an organism
Explanation:
Define structuralism and functionalism and explain their similarities and differences.
Answer:-Structuralism is the field concerned with discovering the basic elements of consciousness and...
-Functionalism is the field concerned with how mental processes help organisms adapt to their environment.
-Wilhelm Wundt established structuralism; he broke down consciousness into its two basic elements- subjective feelings and objective sensations.
-William James established functionalism; James disagreed with the functionalists and believed that consciousness couldn't be broken down as structuralists believed because it was a continuous stream of consciousness.
-Similarities are that subjective feelings and objective sensations are included in a continuous stream of consciousness as well as many other things. Organisms can adapt to their environment by using their subjective feelings and objective sensations and thoughts in order to solve problems that occur in their environment.
Use the drop-down menus to complete each sentence.
are organisms that contain more than one cell with membrane-bound organelles and a nucleus.
Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as
Answer:
✔ Eukaryotes
are organisms that contain more than one cell with membrane-bound organelles and a nucleus.
Organisms that contain only one cell and do not contain a nucleus or membrane-bound organelles are known as
✔ prokaryotes
Explanation:
1. Eukaryote
2. Prokaryote
Through which conversion is energy released?
ADP to ATP
ATP to ADP
NADP+ to NADPH
CO2 and H2O to C6H12O6 and O2
Answer:
B. ATP to ADP
Explanation:
Just took the quiz on e2020
Answer:
B :)
Explanation:
just took the test