Answer:
Yes.
Explanation:
Yes, tetrapods are monophyletic group because the ancestor of all the tetrapods have four legs. Amniotic Egg was also comes from tetrapods which enables the reptiles to lay egg on the dry land. Yes, Vertebral Column is also derived from the evolution of early tetrapods. Yes, Lamprey and the Tuna belongs to monophyletic group because they both evolved from the common ancestor.
How does the genetic code for an entire human being fit into the microscopic nucleus of a skin sell?
Answer:
The DNA of each chromosome is coiled, compacted, and coiled up some more.
Explanation:
Genetic code is the nucleotide sequence of DNA which is compacted to a chromosome to fit in the skin cell by the protein which compacts the long DNA into the small chromosome.
What is DNA organization?Levels of DNA Compaction nucleosomes, which resemble "beads on a string," are formed when double-stranded DNA is wrapped around histone proteins. A 30-nm chromatin fiber is formed from the nucleosomes.
The chromosomes narrow more during mitosis in a cell. In the S phase of interphase, DNA replication occurs. To create chromosomes, the chromatin fibers are further coiled and compressed.
Chromosome DNA is crammed into the eukaryotic nucleus little area by proteins. The resultant DNA-protein combination is known as chromatin, and these proteins are known as histones.
Therefore, the proper sequence is DNA, Nucleosome, Chromatin, and Chromosome, so by this organization genetic code of an entire human being fit into the nucleus of a skin cell.
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Which foods would have the following nutrient test results? (results shown below)
a. beef, peanut butter, tuna
b. apple juice, honey, orange juice
c. candy, table sugar, cola
d. pasta, bread, crackers
Answer:
The correct answer is - option c.
Explanation:
Benedict test is used to test the presence of reducing sugar in a sample. If the benedict solution turns in red or orange color it means there is a presence of glucose as it is a reducing sugar. So, this test result shows that there no reducing sugar in the sample as it is blue.
Lugol test is the test to see if the sample has starch in it or no by turning in to blue color, in this result, it is orange in color which suggests that there is no starch available.
A Biuret solution is used to test for the availability of protein in a particular sample, purple or pink color is the representation of the presence of protein. There is no protein as per result
Sudan red test is used to test the presence of TGA, lipids, or lipoproteins in a sample by reacting with it and turn in to red color. The absence of the lipids shows no change as it is shown in this test.
Thus, the correct answer among these options is - option C.
Which role of bacteria is the most beneficial in terms of maintaining the health of the plant populations in our ecosystems?
Bacteria aiding in digestion in the intestines of animals.
Bacteria serving as a major food source for secondary consumers.
Bacteria decomposing dead materials which returns nutrients to the soil.
Bacteria producing oxygen for the oxygenation of the earth's atmosphere.
Answer:
Yes
Explanation:
Be able to analyze data and make conclusions about the data
Which of the following are examples of malpractice in the healthcare workplace? Check all of the boxes that apply.
medication errors
surgical errors
computer errors
diagnosis errors
insurance errors
Answer:
1 no. is the answer of this t
Answer:
A,B,D
Explanation:
Just did it
An example of a simple sugar would
be...
A. cellulose.
B. glucose.
C. glycogen.
Answer:
Glucose
Explanation:
I believe this is right, if not please let me know. hope this helps
Distinguish the difference between dehydration synthesis, and hydrolysis?
Explanation:
In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.
Food gives animals energy. Which of the following could be an animal's food? Select all that apply.
A. nectar
B. a spider
C. water
D. a twig
E. a mushroom
Answer:
a spider, water provides nutrients as well, and twigs also
The options that could be animal food are nectar, a spider, a twig, and a mushroom. Thus, all the options except for water give energy to animals.
How does an animal derive energy from food?Animals derive energy from food through the mechanism of cellular respiration. Glucose is found in the food that animals generally eat. The molecules of glucose are significantly broken down during the process of cellular respiration into an energy source called ATP.
According to the context of this question, nectar is a food that is rich in sugar and provides a source of nutrients to animals. A spider is food to some animals like insects, so insects are insectivores but many also have a taste for plants. A mushroom is a kind of food for higher animals like humans.
Therefore, the options that could be animal food are nectar, a spider, a twig, and a mushroom. Thus, all the options except for water give energy to animals.
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Controls are important to make sure that there is a baseline to compare the impact of the independent variable to. True or False?
Answer:
The answer is True.
Explanation:
The control group is the group in an experiment that does not receive the changes by the experimenter(s). The independent variable cannot affect the control group.
Which characteristic describes the troposphere? contains the ozone layer has the highest air pressure spans 12–50 km above Earth is a good place for planes to fly
Answer:
Has the highest air pressure
Explanation:
The troposphere contains a lot (around 80%) of earth's atmospheric mass, which makes it very compressed and dense, thus it having the highest air pressure.
(and I also just took the quiz; good luck!!)
Earth's atmosphere is made up of many layers with different temperatures and pressure. The troposphere is the lowest layer of the atmospheric regions.
The correct answer is:
Option B. The highest air pressure.
This can be explained as:
The ozone layer is not found in the troposphere but lies in the stratosphere.The troposphere has the highest pressure because it is closer to Earth surface and all the other layers lie above it.The troposphere lies up to 0 -15 km from the Earth surface.Planes can fly above or below the troposphere layer.Therefore, the troposphere has the highest air pressure.
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he population of Japanese sika deer in central Japan was determined each year from 2005 to 2014. The sika deer population underwent logistic growth starting at 26,000 deer in 2005 and stabilized at 58,000 deer between 2012 and 2014. Based on these data, the rmax for this population was determined to be 0.57. Central Japan contains a variety of habitats, including forests and grasslands. Sika deer benefit from the resources in grasslands more than forests; if deforestation occurred, producing more grasslands in the region, the carrying capacity for sika deer population would increase. What would the population size of sika deer be one year after the carrying capacity increased to 70,000 as a result of deforestation
Answer:
The population would grow to 63,667 deer in a year, and the growth rate would decrease the following year.
Explanation:
Sika deer population : starting at 26000 in 2005
stabilized at 58000 between 2012 and 2014
rmax = 0.57
The population size of Sika deer be one year after the carrying capacity increased to 70000 as a result of deforestation
carrying capacity (k) = 70000
population size ( N ) = 58000
max growth(rmax) = 0.57
To determine the growth
dN/dt = rmax N [ (K-N) / K ] ---------- (1)
insert the given value into the formula above
dN / dt = 0.57 * 58000 [ 12000 / 70000 ]
= 33060 [12000 / 70000 ]
= 5667
The increase in population = 5667 + 58000 = 63667
The population size of Sika deer one year after the carrying capacity increased to 70000 as a result of deforestation is; 63667 deer
Calculation of Growth RateWe are given the following about the Sika deer population;
Initial Population in 2005 = 26000Stabilized Population between 2012 and 2014 = 58000r_max for population = 0.57Now, we want to find the population size of Sika deer one year after the carrying capacity increased to 70000 as a result of deforestation
Thus;
carrying capacity; k = 70000
population size; N = 58000
max growth rate; r_max = 0.57
Formula for the growth is;
dN/dt = (r_max × N)[(K - N)/K]
Plugging in the relevant values gives;
dN/dt = 0.57 × 58000[12000/70000]
dN/dt = 5667
Thus;
Increase in population = 5667 + 58000
⇒ 63667
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19. Which of the molecules in Model 2 would form hydrogen bonds with itself (that is, other molecules of the same type) or with water molecules if in a solution?
Am not very sure...........
Which statement is true for both plants and animals?
Answer:
where are the statements
Explanation:
where are they
Answer:
plants and animals are living beings and they eat food for survive and grow
In general, which factor is NOT critical when beginning an exercise program?
A. using appropriate protective equipment during exercise
B. finding friends who like to exercise the same way you do
C. seeing your doctor for a physical assessment prior to beginning exercise
D. choosing clothing that is designed to match your exercise program
Please select the best answer from the choices provided.
Ο Α
B
OD
Answer:
The non-critical factor when a person begin an exercise program is finding friends who like to exercise the same way you do.
Explanation:
Physical exercise is an ideal way to stay healthy. It is a personal activity that should be done in the best way and with a minimum risk. Finding friends who like to exercise can contribute to motivation, but it is not an indispensable element when establishing a personal exercise routine.
Since it is a personal activity that affects an individual's health, personal factors should be considered when establishing a exercise program.
Regarding the other options, which are important factors for the exercise :
Use appropriate protective equipment during exercise, allows to avoid injuries during physical activity.See the doctor for a physical assessment prior to beginning exercise, establishing the state of health and physical condition appropriate for this activity.Choose clothing that is designed to match your exercise program, which must be comfortable and light, allowing maximum performance to be achieved.Which feature is not found in viruses?
A) DNA
B) RNA
C) mitochondria
D) protein capsid
Answer:
C. Mitochondria
Explanation:
Viruses lack a mitochondria.
Answer:
im pretty good at biogly and the answer is C
Explanation:
The viruses can be either a DNA virus or RNA virus, which leads to the transfer of genetic data from mother to offsprings. They also often have the protein capsid which envelops the genetic material. But, mitochondria are absent, they are only seen in eukaryotic cells.
A pharmaceutical company wanted to test a new drug developed to lessen the effects of the common cold. To test this drug, scientists tested 50 volunteers, each of whom was suffering the effects of a cold. Twenty five of the people were given the drug, while the other 25 were given a placebo, a sugar pill. None of the participants knew who was taking which pill. All participants received a pill at 8:00 am daily for the first three days of the study. All participants lived in the same environment, with the same climate, eating the same diet, and having the same level of activity. The severity of the cold, hence the effectiveness of the pill, was determined by the number of tissues each person used within 24 hours. At the end of a seven day period, it was concluded that those with the sugar pill had their symptoms disappear as well as those who had taken the new wonder drug. The executive committee decided to produce the drug anyway thinking that the public would do anything to relieve the symptoms of a cold. Type of Variable Description Dependent Variable that the researchers actually measurers, counts or observes. It is what the researcher thinks will change in response to the experimental treatment. Independent Variable that is intentionally changed by the researcher. Standardized or Controlled These variables are held constant between each group to help prevent these factors from influencing the dependent variable. Table Source: CA Surmacz (2004) Inquiring Minds Want to know: Introducing Freshmen to Experimental Design. In Tested studies for laboratory teaching. MA O'Donnell, Ed. Vol 25 Mini Workshops. Assoc. Biology Laboratory Education pp. 316-327.
1) State the research question the study aimed to address
2) What is the hypothesis?
3) Identify the independent variable versus the dependent variable.
4) What variables were held constant in this study?
5) What was the control group?
6) What data was collected during the study?
7) What this data qualitative or quantitative?
8) What was the study's conclusion?
Answer:
1. Research question is a question which is the aim of any experiment or research, in this case, the question addressed by the study is - Testing the effects of a newly developed drug to lessen the effects of the common cold.
2. Hypothesis is an explanation for the reason for any problem it does not need the evidence and completely based on logic.
The newly developed drug is able to lessen the symptoms of a common cold.
3. Independent variable is a variable manipulated or changed during the experiment:
Administration of drug or placebo (sugar pill)
4. Dependent variable is the response to the effect of the independent variable:
Number of tissues for each volunteer
5. Control group is available that remain constant throughout the study or used to compare the results:
Administration of sugar pill to 25 volunteers
6. Data is the result that the study generated -
At the end of the 7 days or one week period, symptoms of common cold disappear in both sets of volunteers who had taken either the drug or the placebo.
7. Data in this study is found is Qualitativedata as the drug is not administrated in doses.
8. Conclusion of the study is that the Placebo effect present as sugar pills relieve the common cold so This drug needs even more analysis.
1) What are the two main elements that make up most stars?
Answer:
Hydrogen and helium are the two most plentiful elements.
What are the four elements
that all graphs must have?
Answer:
x axis, y axis,
Explanation:
Answer:
title.
data points.
Appropriate labels on each axis that include units.
A legend if more than one type of information is included.
Explanation:
Henry finds an element that is light blue, breaks easily in his hand, and does not reflect light. How should Henry classify the element?
F a metal
G a metalloid
H a non-metal
J a gas
Mention any two differences between milk teeth and
permanent teeth.
Answer:
milk teeth will break as u grow up
and
permenant teeth will never break when u r young but as u grow older many people teeth will break
Explanation:
milk teeth will break as u grow up
and
permenant teeth will never break when u r young but as u grow older many people teeth will break
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What cell process is this and how do you know !
Answer:
Explanation:
Cell reproduction is the process by which cells divide to form new cells. Each time a cell divides, it makes a copy of all of its chromosomes, which are tightly coiled strands of DNA, the genetic material that holds the instructions for all life, and sends an identical copy to the new cell that is created.
Explanation:
Cell reproduction is the process by which cells divide to form new cells. Whenever a cell divides it makes a replica of its chromosomes, which are tightly coiled strands of DNA, the genetic material that holds the instructions for all life, and sends an identical copy to the newly created cell.
Mass:
1.) What unit is used to measure mass in science?
Answer:
A Kilogram is used to measure mass in science
Explanation:
In one paragraph, using your own words, explain the process of dehydration synthesis.
Keep in mind the following: 'de-' means 'removal' and 'hydra-' means 'water'
Answer:
Dehydration synthesis is the process of joining two molecules, or compounds, together following the removal of water. When you see the word dehydration, the first thing that may come to mind is 'losing water' or 'lacking water.'
According to research presented in the text, one of the most important environmental stimuli for premature babies is:
a. Music
b. Proximity to the biological mother
c. Smell stimuli
d. Touch
The net force on an object is 80 N. The mass of the object is 40 kg.
What is the acceleration of the object?
I
Answer:
The acceleration of object is 2 m.s⁻².
Explanation:
Given data:
Force on object = 80N
Mass of object = 40 kg
Acceleration = ?
Definition:
The acceleration is rate of change of velocity of an object with respect to time.
Formula:
a = Δv/Δt
a = acceleration
Δv = change in velocity
Δt = change in time
Units:
The unit of acceleration is m.s⁻².
Acceleration can also be determine through following formula,
F = m × a
a = F/m
Now we will put the values in formula.
a = 80 N/40 kg
a = 2 m.s⁻² (N = Kgm.s⁻² )
A chemical reaction is a process by which atoms or groups of atoms in substances
are
(A) dissolved in other substances.
(B) ionized by the loss of protons.
mixed together with atoms in other substances.
(D) reorganized into different substances.
Answer:
A). dissolved into other substances
Explanation:
Process of elimination-
B) loss of protons-mechanical reaction
D) reorganized into different substances-physical reaction
A chemical reaction is a process by which atoms or groups of atoms in substances are reorganized into different substances. The correct option is D.
What is a chemical reaction?A series of chemical reactions that directly convert one or more substances, known as reactants, into one or more different compounds, known as products.
Chemical elements or compounds are examples of substances. A chemical reaction rearranges the constituent atoms of the reactants to produce various products.
Combination, decomposition, single-replacement, double-replacement, and combustion are the five basic types of chemical reactions.
Analyzing the reactants and products of a specific reaction will allow you to categorize it.
A chemical reaction is the chemical transformation of one set of chemical substances into another. A chemical reaction is the process by which atoms or groups of atoms in one substance are rearranged into another.
Thus, the correct option is D.
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How does a cell of a unicellular organism differ from a cell of a multicellular organism
Answer:
Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function
Explanation:
4. Thinking that someone is at the door when you hear the doorbell ring is an example of
Answer:
Inference.
Explanation:
An inference is when a conclusion is made based on observation. This logical conclusion is made based on what has been and is observed.
When a conclusion can be arrived at based on the observation or previous observations, then this can be referred to as an inference. Thus, when one can know that someone is there at the door when the doorbell rings, then that is an example of inference.
Thus, the correct answer is inference.
Where is a meteorite found?
1) in space
2) in earth’s atmosphere
3) hitting the sun
Answer:
In space
Explanation:
Because it would be weird if it would be in earth's atmosphere, and hitting the sun is rare. Most likely to come from space
Answer:
In Space.
Explanation:
All meteorites come from inside the solar system. Most break off from an asteroid in the asteroid belt and circle the sun. But they come from Space.
What is the water potential of a .20 M solution of sucrose in an open beaker at 23 degrees Celsius?
Answer:
-4.92 bars
Explanation:
The water potential of a solution is the sum of the pressure potential and the solute potential of the solution. This can be mathematically expressed as;
Фw = Фp + Фs, where Фw = water potential, Фp = pressure potential, and Фs = solute potential.
For a solution that is in an open beaker, the Фp = 0. hence
Фw = -Фs
Also,
Фs = iCRT, where i = number of particles the molecule will make in water (1 for sucrose), C = molar concentration, R = pressure constant (usually 0.0831 liter bar/mole K), and T = temperature (in kelvin).
In this case, i = 1, C = 0.20 M, R = 0.0831, T = 273+23
Фs = 1 x 0.20 x 0.0831 x 296 = 4.92 bars
Therefore,
Фw = -4.92 bars
