I would like a pretty fast answer, please.
Scientists once thought that life spontaneously arose from nonliving things. It took extensive experimentation and the invention of new technology to confirm the tenets that now make up the cell theory. Now, we don't even question that cells are the basic units of life and only come from preexisting cells. What technology had the biggest impact on the development of the cell theory?
A) centrifuge
B) electrophoresis
C) microscope
D) telescope
Answer:
Microscope.
Explanation:
Microscopes were extremely influential in the development of cell theory, as they allow us to see down to the level of cells and observe them. Through process of elimination, we know it cannot be a telescope (used for observing large, far away objects) or a centrifuge (separates substances based on density). Electrophoresis is moreso used for DNA, and not for the entire cells.
Imagine that fully functioning kidneys have been successfully created through bioengineering. What data analysis would measure the effectiveness of bioengineered organs in improving access to organ transplants among diverse groups of people, and what evidence would be needed to demonstrate that bioengineered organs have improved access
Answer:
The correct data analysis and evidence is:
Analysis: Compare the percentage of different ethnic groups who receive kidney transplants before and after bioengineered kidneys are available.
Evidence: A greater percentage of African Americans, Asians, and Pacific Islanders, and Hispanic/Latinos receive transplants after bioengineered kidneys are available compared to before
Explanation:
Bioengineered organs may be used to repair organs that have been destroyed. If the bioengineered organs are identical to the initial ones, transplantation rejection may be reduced.
So, to assess the effectiveness of organ donation adoption in people of various ethnicities, we should compare the percentage of people of various ethnicities receiving organ transplants before and after bioengineered organs became viable, and look for signs of a higher percentage of people of various ethnicities receiving organ transplantation after bioengineered organs became available.
Answer parts A, B, C, D
Photo Attached
a). a microRNA (miRNA) is a small non-coding RNA involved in transcriptional and post transcriptional regulation of gene expression. Given the mRNA molecule below, suggest an example of a complementary 10 nucleotide miRNA. circle or highlight the sequence on the mRNA template to which your miRNA will bind, give the complementary 10 nucleotide sequence and clearly label the orientation of the miRNA molecule.
mRNA region: 5’-GUAGUACUGAUGGUCCAGUACGUGCUAGGUCGCUAGUAGUUCGAUGCAGUAUUAU-3’
b). what is the consequence of this miRNA binding to the mRNA above?
c). what happens when the miRNA is not completely complementary to the mRNA it is attached to?
d). what is one theory explaining the evolution of the RNAi pathway? what important research function has RNAi served since its discovery?
Answer:
b
Explanation:
Please help.What would you expect to occur if you were to repeatedly lift 25 pounds over your head for 1 minute,
rest for 1 minute, and then repeat the exercise? Why do you expect this outcome?
Answer:
Strengthen the arms.
Explanation:
If a person repeatedly lift 25 pounds of weight over the head for 1 minute and then rest for 1 minute, the outcome of this exercise is to strengthen the muscles of the arms. The lifting of weight with the help of arms, the muscles of the arms will get stronger and increase occurs in the width of the arms. This exercise done by bodybuilders to get their arms stronger as well as athlete for stronger arms and hand muscles so the outcome of lifting the weight will leads to the increase in the strength of the arms.
A population is a collection of all the types of organisms in an area.
Please select the best answer from the choices provided
ОТ
OF
Put
the following in order to show how seafloor spreading occurs. 1 New ocean floor is added to Earth's surface. 2 New crust slowly moves away from the ridge. 3 Magma oozes out of the rift valley. 4 Magma rises from the mantle. 5 Magma cools and forms new crust.?
Answer:
yes
Explanation:
Which statement correctly describes how the mitochondrial uncoupling agent valinomycin inhibits oxidative phosphorylation without collapsing the proton (H+) gradient across the inner mitochondrial membrane?
a. Valinomycin carries Kt into the mitochondrial matrix, reducing the electrical component of the electrochemical gradient across the inner mitochondrial membrane.
b. Valinomycin carries Ht into the mitochondrial matrix, decreasing the mitochondrial membrane potential without generating ATP.
c. Valinomycin is a complex I inhibitor that prevents NADH oxidation and the pumping of H+ into the intermembrane space.
d. Valinomycin is an ATP synthase inhibitor that prevents H+ from moving down its concentration gradient into the matrix.
Answer:
a. Valinomycin carries Kt into the mitochondrial matrix, reducing the electrical component of the electrochemical gradient across the inner mitochondrial membrane.
Explanation:
Oxidative phosphorylation is a process by which cells generate ATP (the energy coin of the cells) by coupling an electrochemical potential gradient across the inner mitochondrial membrane created by the electron transport chain to phosphorylation of ADP. Moreover, an ionophore is a molecule that reversibly binds ions. Ionophores are often involved in the movement of ions across the cell membrane. Valinomycin is an ionophore that mediates the transport of potassium (K+) ions down a concentration gradient, which is capable of disrupting the gradient across the membrane by modifying the K+ gradient. Valinomycin binds to K+ ions and enables them to pass more rapidly across the mitochondrial inner membrane, thereby neutralizing the excess of negative charge inside the mitochondrial matrix and thus slowing ATP synthesis.
Describe how the lactic acid produced in muscle cells enters the blood
Answer:
Explanation:
Fast-twitch muscle also uses glycolysis to produce energy, but it skips harvesting energy from pyruvate, a process that takes oxygen. Instead, pyruvate gets converted into a waste product, lactic acid, and released into the bloodstream
Answer: Lactic acid is produced in your muscles when you perform strenuous exercise. It’s produced mainly in muscle cells and red blood cells when the body breaks down carbohydrates for energy when oxygen levels are low. These levels decreases during intense exercise or when a person has an infection or disease.
Explanation:Hope this helped (:
NEED HELP PLZ!!! ASAP!! (someone else deleted my question)
Which of the following happens during a solar eclipse?
The moon appears red.
The moon casts a shadow on Earth.
Earth, the moon, and the sun form a triangle.
Earth comes between the sun and the moon.
Ok so I'm Confused, that last answer- Shouldn't that say the moon comes between the sun and the earth? This is what it says on my test instead..
Answer:
C
Explanation:
In a solar eclipse the moon crosses in front of the sun, casting a shadow on the Earth.
Explanation:
may be helpful
the moon casts a shadow on earth
Is a plant that has the natural ability to protect itself against predation a genetically engineered organism
Answer:
No, genetically engineered organisms are engineered by humans. The plant evolved to be this way.
Explanation:
Answer:
If it's a natural ability for the plant, it's probably not genetically engineered. It depends on the plant species/fruit.
Explanation:
Predation: A biological interaction where one organism, the predator, kills and eats another organism, its prey.
Genetically Engineered Organism: An animal, plant, or microbe whose DNA has been altered using genetic engineering techniques.
In most cases with let's say a pepper plant, the plant will produce a chemical compound called capsaicin. This is what makes the peppers spicy. It really just depends on the plant we're talking about.
How do endoparasites survive inside the body of the host?
Endoparasites have extreme specialisations which makes their life cycles more complex. Some examples of endoparasites are Taenia solium and Fasciola hepatica (liver fluke), etc.
The special structures possessed by endoparasites are as follows:
➥ Hooks .
➥ Dorsoventrally flattened body.
➥ High reproductive potential.
➥ Indirect development.
What do you think it is?
Answer:
all
Explanation:
because they are all connect
state two functions of muscles found in the alimentary canal of mammals
how many corals are dead in the Caribbean?
Answer:
over 50 percent of the world's coral reefs have died in the last 30 years and up to 90 percent may die within the next century—very few pristine coral reefs still exist. The impact of our changing climate on coral reefs was manifested by the third global bleaching event in 2015/16.
Explanation:
what is sonority and examples of sonority
Answer:
the quality or fact of being sonorous.
mid vowels [e o]
high vowels (close vowels) / glides (semivowels) [i u j w] (first two are close vowels, last two are semivowels)
flaps [ɾ]
laterals [l]
Explanation:
Answer:
sonority
[ suh-nawr-i-tee, -nor- ]SHOW IPA
See synonyms for sonority on Thesaurus.com
noun, plural so·nor·i·ties.
the condition or quality of being resonant or sonorous.
Examples: The first three movements are the best; the only charm of the fourth being its sonority, for the musical contents are poor
It does not possess the rough gravity of the Spanish, and has too few of the i's and e's that soften the sonority of the Italian.
The hymn began to repeat itself, the individual words lost in the sonority of the hall.
From the phonetic point of view we may think of words and groups of words as consisting of a series of sounds of varying sonority.
We may indicate the sonority very roughly by lines; if we connect their top ends, we shall obtain a curve.
Which statement describes a source of air pollution and an effect of this pollutant?
Choose the correct answer.
Nuclear power plants release methane, which can damage DNA.
O Coal plants release carbon dioxide, which contributes to global warming.
Industrial bakeries release airborne metals, which can cause neurological damage.
O Wind turbines release particulate matter, which can cause respiratory problems in humans and
animals.
Answer:
Nuclear power plants release methane, which can damage DNA.
Explanation:
stationary sources – such as power plants, oil refineries, industrial facilities, and factories. area sources – such as agricultural areas, cities, and wood burning fireplaces.
Oran fills in the table below to organize information about the gas laws.
Gas law
Gay-Lussac's
Boyle's
Charles's
Constant
1
3
5
Changing
2
4
6
In which numbered cells should he place pressure?
O 2, 4, and 5
O 1, 4, and 6
O2, 3, and 5
O 1, 3, and 6
The correct option is D.) 1, 3, and 6 because pressure is the changing factor in Gay-Lussac's Law, the constant factor in Boyle's Law, and the changing factor in Charles's Law.
Gay-Lussac's Law states that the pressure of a given quantity of gas held at constant volume is directly proportional to the Kelvin temperature which means the pressure of a gas increases as the temperature increases, and decreases as the temperature decreases.
Boyles Law states that the pressure of a gas is inversely proportional to its volume that means as the volume of a gas increases, the pressure of the gas decreases, and vice versa.
Charles's law is a basic physical law that states that the volume of a given amount of gas at a constant pressure is directly proportional to its absolute temperature. This means that when the temperature of a gas increases, its volume also increases, and vice versa.
To learn more about pressure click here https://brainly.com/question/12497098
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Which is not a form of precipitation?
Please help ASAP
A Snow
B Fog
C Sleet
D Hail
Answer:
B: Fog
Explanation:
The four types of precipitation are snow, rain, sleet, and hail. Fog is technically a cloud.
Please help I will give brainliest. If you do not know the answer than please do not respond and waste my points.
1. A 2.G 3.D 4.I 5.B
Write what you know about natural selection
Explanation:
I think The Natural selection is the process in nature by which organisms better adapted to their environment tend to survive and reproduce more than those less adapted to their environment. For example, treefrogs are sometimes eaten by snakes and birds
PLEASE HELP I HAVE AN EXAM !!!
For one meiotic division all four daughter sperm cells that are produced have the wrong number of chromosomes; two cells have one extra chromosome while the other two are each missing a chromosome. During which phase of meiosis did the problem most likely occur? What is this problem called?
Answer:
Nondisjunction occurs during anaphase I of meiosis I
Explanation:
Brainliest Please?
How does sugar cross the cell membrane to get into a cell?
Answer:
Glucose cannot move across a cell membrane via simple diffusion because it is simple large and is directly rejected by the hydrophobic tails. Instead it passes across via facilitated diffusion which involves molecules moving through the membrane by passing through channel proteins.
Explanation:
In which of the following scenarios does skin help to maintain body temperature?
O When jumping into cold water, one's skin releases body heat into the water.
O While walking during a hot summer day, sweat on the skin evaporates and cools the body.
O After accidentally touching a hot cookie sheet, a blister forms on one's finger where all the heat entered the body.
After a long run, an Olympic athlete stretches out her arms and legs.
Answer:
B
Explanation:
While walking during a hot summer day, sweat on the skin evaporates and cools the body.
which of those identifies the part of the DNA segment label x
Answer:
I need a picture
Explanation:
Indicate whether the statements below are TRUE or FALSE.
1. You work with two sugars. Glucose (MW = 180 Da) and Sucrose (MW= 342 Da). You make various solutions of each sugar separately and compare them. When you compare two 1-liter solutions containing these sugars at a 10mM concentration, there are more molecules of sucrose in 1 liter because its MW is higher than that of glucose.
2. When you compare two solutions at the same percentage concentration (e.g. 1%), the molarity (= concentration in mole/liter) is higher for glucose because the molecular weight of glucose is lower.
3. When you have 1 liter of a solution containing 90g of glucose, you must use 171g of sucrose to make a 1-liter sucrose solution with the same molar concentration.
Answer:
Hello! Your answer would be, BELOW
Explanation:
1: TRUE
2: TRUE
3: FALSE
Hope I helped! Ask me anything if you have questions! Brainiest plz. Hope You make a 100%! Have a nice day! -Amelia♥
What is the objective of SAE?
Answer:
brainliest plssssss
Explanation:
The purpose of SAE is to give you a wide variety of experiences to explore the career field you are interested in. The majority of SAE programs are performed outside of regular class time, either at your home or in a place of business. Understanding professionalism and safety is important in conducting an SAE program.
Speciation that involves the formation of many different species from one
common ancestor is called
A. linear adaptation
B. adaptive radiation
C. gradual speciation
D. natural selection
Answer: adaptive radiation
Explanation:
Will mark brainlist if the answer is correct
Why are phytoplankton essential to aquatic life zones?
=Answer:Phytoplankton are essential to aquatic life zones because: they provide the basis of food chains. Log in for more information. Added 5/22/2016 9:52:12 AM This answer has been confirmed as correct and helpful.
Explanation:
Human blood type is determined by three alleles IA, IB, and IO. The alleles IA and IB are co-dominant to each other, and both are dominant to IO. Within a large, randomly mating population (540,000 individuals), the frequencies for the blood type alleles are 0.3 for the IA allele, 0.6 for the IO allele, and 0.1 for the IB allele. What percentage of the type A people are heterozygotes (IAIO)?
Answer:
36% → IAi
Explanation:
Due to technical problems, you will find the complete explanation in the attached files