Answers
Answer:
d ) true
g) false
m)false
o)true
Answer:
D. True
E. false
F. false
G. true
H. true
I. true
J. true
K. false
L. false
M. true
N. false
O. false
P. true
Q. true
R. true
Related Questions
1. What are too small to be seen but make up everything?
Answers
Answer:
Matter is made up of small particles that are too small to be seen, even with a powerful microscope.
Answer:
atoms and molecules
Explanation:
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Which of the following is NOT present in all cells?
ribosomes
mitochondria
cell membrane
Answers
Which scientific area is a major force in shaping modern classification methods? physiology anatomy evolution behavior regions
Answers
Answer:
This is evolution.
Explanation:
Based on the system of Cladistics,some systematists are basing organism classification on the period in which they appear or evolved on earth.Therefore species of organism which evolved first are said to be the early organism, and appear higher in the level of classification,while those that evolved later are lower to these organisms in the evolutionary tree.
Simply put,Evolution refers to the progression of changes in an organism overtime.It is as a result of the ability of species of organism to withstand the selective pressure because of the presence of certain inheritable adaptive traits, compare to other organisms in the population.The organisms with these traits are naturally selected.
Therefore, the species of organism with the ability to evolved due to natural selection,are placed higher in the classification tree, while other organisms which evolved later,thus with lesser resistance to the selection pressure are placed below.
Therefore if these traits is in their DNA ,and are responsible for evolution,then classification based on evolution helps to understand the hierarchy by which different organism species appear.Hence evolution and classification are related.
Answer:
Evolution
Explanation:
Classify the explanation or structure with the correctlung. Right Lung Has a horizontal fissure Oblique fissure separates superior lobe and inferior lobe Has a cardiac nalch Has the lingula Has 8-10 bronchopulmonary segments Main bronchus is shorter, wider Left Lung Has 10 bronchopulmonary segments Larger and wider
Answers
Right Lung: Has a horizontal fissure; Has 10 bronchopulmonary segments; Main bronchus is shorter, wider; Larger and wider. Left Lung: Oblique fissure separates superior lobe and inferior lobe; Has a cardiac notch; Has the lingula; Has 8-10 bronchopulmonary segments.
Bronchopulmonary segments are the parts of the lungs that are supplied by a specific bronchus and its vessels. These segments are called to be the largest functional units of the anatomical lobes. Each segment has its own supply of air and blood.
Cardiac notch is a small cavity formed in the left portion of the lung. This is done to fit in the heart. This is the reason why the left lung is little smaller than the right lung.
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HELP PLS First, Demetri will test the three solutions containing milk (lactose).
He begins the experiment by preparing the lactase enzyme solutions. In one beaker he dissolves 1 lactase tablet in 100 mL of water at room temperature. He stirs the mixture until the tablet has dissolved completely. He repeats this process in a second beaker, and then heats the beaker until the solution is boiling.
Demetri then tests these three milk (lactose) solutions for the presence of glucose:
milk in water
milk and lactase enzyme in water
milk and heated lactase enzyme in water
Test Tube 1 - Milk (Lactose): Demetri fills the first test tube one-quarter full of milk. Then, he slowly adds water to the milk until the test tube is three-quarters full. Using the stirrer, Demetri thoroughly mixes the solution. Then he inserts the test strip for 30 seconds and records its color.
Test Tube 2 - Milk (Lactose) and Lactase Enzyme: Demetri fills the second test tube one-quarter full with milk. He then adds the lactase-and-water solution until the test tube is three-quarters full. He uses a stirrer to thoroughly mix the solution. Next, Demetri inserts the test strip for 30 seconds and records its color.
Test Tube 3 - Milk (Lactose) and Heated Lactase Enzyme: Demetri fills the third test tube one-quarter full with milk. He then adds the heated lactase-and-water solution until the test tube is three-quarters full. After stirring, Demetri inserts the test strip for 30 seconds and records its color.
According to the test strips, which of these milk solutions contained glucose?
Answers
Answer:
2nd test tube, because test strip color turned to green, which indicates this test tube solution contained glucose.
Explanation:
Lactase will break down the lactose into glucose and galactose. In first test tube there is no such activity because there is no lactase presented. In 3rd test tube as the enzyme is heated so it is get decomposed so in this case also there is no activity of lactase enzyme.
The second tube is the tube that contained glucose.
We can arrive at this answer because:
Lactase is a protein.This protein has the function of breaking lactose into smaller molecules, which are glucose and galactose molecules.This protein is sensitive to high temperatures and loses functionality in very hot environments.In the case of the tests used in the question above, we can say that in the first test tube, the lactase solution was not added, so the lactose was not broken down. The lactase solution was added to the second test tube, where the lactose was broken down generating glucose and galactose. In the third test tube, the heated water prevented the lactase from acting and therefore it cannot break down the lactose.
Therefore, only the second tube has glucose.
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Unicellular fungi are typically called ______________. Group of answer choices mushrooms yeast hyphae mycelium
Answers
Answer:
Your answer is yeast
Explanation:
Hope this helped :)
Answer:
Yeast
Explanation:
I hope it will help u
How do the sea stars fight for dominance?
Answers
Answer:
Sea stars are slow moving, but a time lapse film by biologists Don Wobber and John Pearse shows how they use their arms to interact with each other on a regular basis. They touch each other as if getting a sense of the others size, and often wrestle for a position of dominance over territory.
Explanation:
what is significance of crossing over during meiosis?
Answers
Answer:
A- a different combination of genes is provided to each gamete
Explanation:
Crossing over accounts for genetic variation, because due to the swapping of genetic material during crossing over, the chromatids held together by the centromere are no longer identical
What does asexual and sexual reproduction have in common?
Answers
Require living cells
Produces offspring
Has DNA for genetic information
Explain how wind erosion might effect exposed rock
Answers
Answer:
Yo
Particles moved by wind do the work of abrasion. As a grain strikes another grain or surface it erodes that surface. ... As wind blows from different direction, polished flat surfaces create a ventifact. Exposed rocks in desert areas often develop a dark brown to black coating called desert varnish.
Hope it helps you.....
Explanation:
(Please help :( >>What states of water occur in the water cycle? (Site 2)
Answers
Answer:
Water can occur in three states: solid (ice), liquid, or gas (vapor). Solid water —ice is frozen water. When water freezes, its molecules move farther apart, making ice less dense than water.
Hope this helps :)
Explanation:
Who made the biggest contribution to the discovery of DNA?
Answers
Answer:
A crucial contribution. Rosalind Franklin made a crucial contribution to the discovery of the double helix structure of DNA, but some would say she got a raw deal. Biographer Brenda Maddox called her the "Dark Lady of DNA," based on a once disparaging reference to Franklin by one of her coworkers. Unfortunately, this negative appellation undermined the positive impact of her discovery. Indeed, Franklin is in the shadows of science history, for while her work on DNA was crucial to the discovery of its structure, her contribution to that landmark discovery is little known.
Explanation:
hope this helps
The air bubbles and spongy texture of bread are due to which process?
a. Lactic acid fermentation
b. Glycolysis
c. Alcoholic fermentation
d. The Krebs Cycle
Answers
Answer:alcoholic fermentation
Explanation:
The air bubbles and spongy texture of bread are a result of the process of baking of bread through alcoholic fermentation. Thus, the correct option is C.
What is Fermentation?
During fermentation, carbon dioxide is produced in cell and it is trapped as tiny pockets of air within the dough. The production of carbon dioxide causes the dough to rise.
During the baking of bread, carbon dioxide expands and causes the bread to rise further. In this process, alcohol is produced during fermentation which evaporates during the baking process of bread. In this process, yeast eats the sugar and releases carbon dioxide which causes air bubbles.
Therefore, the correct option is C.
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Would you expect a fast moving
mountain stream or the Mississippi River to have more dissolved oxygen? Explain.
Answers
Answer:
The mountain stream will be colder, and faster moving and more turbulent than the Mississippi River. Both factors should maximize oxygen solubility
Explanation:
Hope this helps UwU
Answer:
Fast moving mountain stream
Explanation:
The fast-moving mountain stream would have more dissolved oxygen because the movement of the water forces air into the water.
Which of the following developments helps to explain the change in agriculture depicted in the graph?
A
The extraction of western resources led to the growth of new towns and cities that demanded agricultural goods.
B
The growth of an internal slave trade provided an enlarged workforce whose labor helped increase agricultural production.
Answers
Development that helps explain the change in agriculture depicted in the graph is option A
The graph depicts the production of agricultural goods over time. According to the graph, there was a steady increase in agricultural production from 1800-1860, which sharply increased from 1860 to 1900. Agriculture in America saw a significant change from 1800 to 1900, particularly after the American Civil War. The increase in agricultural production can be attributed to the development of technology and the growth of urban centers. .
The increase in demand for agricultural goods was due to the growth of new towns and cities that demanded agricultural goods.
Option B, which states that the growth of an internal slave trade provided an enlarged workforce whose labor helped increase agricultural production is incorrect. This is because slavery in America was abolished in 1865, which is after the sharp increase in agricultural production.
Agriculture thrived as a result of new markets opening up as a result of western expansion. Hence Option A is the correct answer.
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What is the colored part of the eye?A) Optic nerveB) CorneaC) PupilD) Iris
Answers
The colored part of the eye is called iris, that surrounds the pupil.
PLEASE HELP!! URGENT! Which of the following removes carbon from the atmosphere?
A. Respiration
B. Death
C. Photosynthesis
D. Combustion
Answers
Answer:
I think it's c
Explanation:
Because plants use carbon dioxide during photosynthesis
What happens if more calories are taken in than are used?
weight is gained
weight is lost
body fat is decreased
body fat is converted into energy
Answers
Answer: Once your body's energy needs are met, extra calories are stored for future use — some in your muscles as glycogen, but most as fat. Thus, eating more calories than you burn will cause you to gain weight, whereas eating fewer than you need will cause weight loss ( 4 ).
Answer:
wheight is gained
Explanation:
i took the quiz
An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?
О А.
17
OB.
18
C. 35
Answers
Answer: This is called chlorine
Explanation: 18
Use what you learned about the relationship among gravity, mass, and distance to form sentences. The force of gravity increases the amount of matter in an object. The force of gravity decreases Mass is Weight is when an object's mass increases when distance increases. caused by gravity affecting mass.
Answers
The force of gravity increases when the amount of matter in an object increases.
The force of gravity decreases when the distance between objects increases.
Mass is a measure of the amount of matter in an object.
Weight is the force caused by gravity affecting the mass of an object.
These sentences highlight the relationships among gravity, mass, and distance. The force of gravity is directly proportional to the amount of matter in an object, so as the amount of matter (mass) in an object increases, the force of gravity acting on it also increases.
On the other hand, the force of gravity decreases as the distance between objects increases. This is an inverse relationship, meaning that an increase in distance leads to a decrease in the force of gravity.
Mass refers to the quantity of matter in an object and is measured in kilograms.
Weight, on the other hand, is the force experienced by an object due to gravity. Weight is directly related to mass since gravity affects the mass of an object, determining its weight.
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If you need a mass of DNA between 50 and 100 ng in order to have a successful electrophoresis, you should use between _____1____ and ___2____ μl of your calf liver DNA preparation. Show how this was calculated.
The concentration is 50 ng/ml
Answers
If the concentration of the calf liver DNA preparation is 50 ng/ml, then we can calculate the amount of DNA in a certain volume by using the formula:
amount of DNA (ng) = concentration (ng/ml) x volume (ml)
To find the volume needed to obtain between 50 and 100 ng of DNA, we can rearrange the formula:
volume (ml) = amount of DNA (ng) / concentration (ng/ml)
For 50 ng of DNA, the volume required would be:
volume = 50 ng / 50 ng/ml = 1 ml
Since we need to use μl instead of ml, we can convert 1 ml to μl by multiplying it by 1000:
volume = 1 ml x 1000 = 1000 μl
Therefore, we need to use 1000 μl (or 1 ml) of calf liver DNA preparation to obtain 50 ng of DNA.
For 100 ng of DNA, the volume required would be:
volume = 100 ng / 50 ng/ml = 2 ml
Converting 2 ml to μl:
volume = 2 ml x 1000 = 2000 μl
Therefore, we need to use 2000 μl (or 2 ml) of calf liver DNA preparation to obtain 100 ng of DNA.
Therefore, if you need a mass of DNA between 50 and 100 ng in order to have successful electrophoresis, you should use between 1000 and 2000 μl (or 1 and 2 ml) of your calf liver DNA preparation.
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Why does water expand
Answers
Answer:
this happens when it freezes
Explanation:
When water freezes, its molecules get arranged in a crystalline structure, thereby attaining a defined shape. This crystalline structure is less dense, and since there are gaps between individual molecules in the structure, the overall volume increases and water expands
Answer:
Water expands as it freezes because water molecules are very loosely bound. They are arranged in a hexagonal pattern inside of the ice. As the temperature lowers, the molecules move slower, which causes them to get closer together.
Explanation:
which instrument would produce
sound with the longest wavelength?
a. Flute
b. Bass guitar
C. Violin
d. cymbal
Answers
Answer: Long wavelengths are the result of a deeper sound since it takes longer for it to travel through a medium. The Bass Guitar is your best bet as it is the lowest sounding instrument, meaning is had the longest wavelength.
specie's who reproduce asexually produce genetic clones of themselves as their offspring. They can still evolve though due to random genetic errors know as...
Answers
Answer:
Mutations
Explanation:
Species that reproduce asexually produce genetic clones of themselves as their offspring, which means that their offspring have the same genetic material as the parent. However, random genetic errors can still occur during the process of DNA replication, which can lead to genetic variation and potential evolution. These random genetic errors are known as mutations.
Species that reproduce asexually produce genetic clones of themselves as their offspring. They can still evolve, though, due to random genetic errors known as mutations.
What is mutation and asexually reproduction?These mutations can lead to genetic variation within a population, even in asexually reproducing species. While the genetic variation resulting from mutations may not be as extensive as in sexually reproducing species, it can still provide the raw material for evolution to occur. This is because mutations can lead to changes in traits, such as an organism's physical appearance or behavior, which can influence its ability to survive and reproduce in its environment.
Hence, species that reproduce asexually produce genetic clones of themselves as their offspring. They can still evolve, though, due to random genetic errors known as mutations.
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During meiosis, which of the following allows for variations in alleles in the gametes
formed?
A) homologous chromosomes stay together
B)chromosome crossover
C)daughter cells identical to parent cells
D)Genetic drift
Answers
Answer:
D. I'm pretty sure at least
Often, the most expensive part of being a farmer comes from which of the following?
A. Animal feed
B. Crop Insurance
C. Farm Equipment
Answers
Answer:
B. i think, sorry if i am not right
Answer:
A. Animal feed
Explanation:
Explain how the size of the wolf population affected the size of the deer population and how the size of the deer population affected the wolf population
Answers
A symbiotic relationship that benefits both species is referred to as commensalism. true or fales
Answers
Answer:
True
Explanation:
Mutations occur in part of a DNA sequence. The DNA sequence before and after the mutations is shown below. A strand of mRNA is then made from the mutated DNA sequence.
The table below shows the amino acids encoded by some mRNA base sequences (codons). Based on this information, what is the expected effect of the mutations?
Before mutations colon Uppercase A T G G C G G A A G C A
After mutations colon Uppercase A T G C G G G A A G G A
Responses
A) A protein with the same amino acids will be made.
B) A protein with the same amino acids will be made.
C) A protein with different amino acids will be made.
D) A protein with different amino acids will be made.
E) A protein with more amino acids will be made.
F) A protein with more amino acids will be made.
G) A protein with fewer amino acids will be made.
Answers
A protein with different amino acids would be made. Options C and D.
What is mutation?Mutation refers to a sudden change to the base sequence of a DNA.
The original sequence of the DNA is ATG GCG GAA GCA. Arranging the sequence in triplets and looking up the amino acids that correspond to each codon. The resulting amino acids for the last codon would be as follows:
GCA - Ala
The mutated sequence is ATG CGG GAA GGA. Arranging it into triplet codes to form codons and the following will be obtained for the last codon:
GGA - Gly
In other words, a protein with different amino acids will be made.
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A triangle has side lengths 9, 10, and 12. Is it acute, obtuse, or right? Explain.
A. Right; 92 + 102 = 181 and 122 = 144, so a? + b2 = c2.
O
B. Obtuse; 92 + 102 = 181 and 122 = 144, so a+ b2 < c.
C. Acute; 92 + 102 = 181 and 122 = 144, so a2 + b2 >c2.
Answers
I dont really understand what yours asking but that triangle is acute because its sides are less then 90 degrees. Does that help??