Answer:
Explanation:
The arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are homologous structures. They are different and have a different purpose, but they are similar and share common traits.
PLEASE HELP IM GIVING 50 POINTS FOR THIS!!!!!!!! ALSO BRAINLIEST
Plan a controlled experiment that uses the simulation to investigate how changing the mass of an object changes its acceleration. The net force on the object must stay the same. Record your plan here.
It is possible to measure how acceleration changes with mass by throwing objects with different mass from the same height and measuring the acceleration.
What are the important factors for the experiment?This experiment requires you to measure how acceleration changes if the mass changes. This implies you need to consider the following factors:
Acceleration: This factor is the one you will measure in your experiment.
Mass: This factor is the one you will need to control, this implies using objects from different masses and comparing if mas has any effect on acceleration.
Other: Net force, wind, etc. are other factors that need to be constant to prevent them affect the results.
Steps for the experiment:
Choose a specific heigh: One of the ways of measuring acceleration is to throw objects and determine the acceleration as they fall, so the first step will be to establish a height.
Throw different objects with different masses: You can begin with light objects and move into heavier objects.
Measure acceleration: Every time you throw an object, measure acceleration using the formula A = change in velocity/ time.
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Answer quickly please
How do roundworms differ from earthworms?
A. They have a cylindrical body.
B. They have a body that is tapered at both ends.
C. They reproduce sexually.
D. They are not divided into segments.
Answer:
Key difference: Earthworms, Tapeworms and Roundworms are long and cylindrical shaped worms. The basic difference between them is that Earthworms are segmented invertebrates belonging to the phylum Annelida, Tapeworms are flatworms belonging to the phylum Platyhelminthes, and Roundworms are parasitic worms belonging to the phylum Nematoda.
Explanation:
So: A?
Answer:
A
Explanation:
They have a cylindrical body.
Have a great day and good luck
Which relationship is an example of commensalim?
Which of the following describes a negative feedback loop?
Answer:
Which of the following describes a negative feedback loop?
Explanation:
where is option ?
When does gamete production occur?
What is the definition of "earth overshoot day?"
Answer: Earth Overshoot Day is the calculated illustrative calendar date on which humanity's resource consumption for the year exceeds Earth’s capacity to regenerate those resources that year. The term "overshoot" represents the level by which human population overshoots the sustainable amount of resources on Earth.
how is cancer cell division different from regular cell division
please help with this question
Answer:
a -5
d -2
c-3
b-4
e - 5
Explanation:
I'm guessing this is the answer
**anatomy & physiology question**
if you are at a 60X magnification and the field diameter is 3.2mm an object that's about 1/4th the size of the field diameter what is the size of the object?
Answer:
0.8mm.
Explanation:
If the size of an object is about 1/4th the size of the field diameter so the size of an object is 0.8mm because the fourth part of field diameter is equals to 0.8mm. Due to knowing field diameter of microscope we can calculate the real size of objects that is too small which can't be seen with the naked eye. So one fourth part of field diameter is equal to 0.8mm.
George Washington Carver was particularly interested in the products of what foods?
O Peanuts, sweet potatoes, soy
Peanuts, tobacco, soy
Peanuts, potatoes, corn
Soy, potatoes, sweet potatoes
Answer:
A - peanuts, sweet potatoes, and soy
Explanation:
Answer:
I looked it up and got peanuts, pecans, sweet potatoes, and soybeans...
Explanation:
Butanol was used in the production of:
O Cordite
O Nitroglycerin
O Fizzy beverages
Synthetic rubber
Answer:
Synthetic rubber.
Explanation:
Polymerization can be defined as a type of chemical reaction in which molecules that are relatively small in size chemically combine to form a huge chain of molecules.
Simply stated, polymerization refers to a chemical reaction where two or more smaller molecules react to produce larger molecules of the same network or repetitive structural units.
In polymerization, the relatively small molecules are generally referred to as monomers while the larger molecules they produce are known as polymers.
Butanol was used in the production of synthetic (artificial) rubber through a fermentation process.
A farmer has been trying to increase his crop yield for the last 10 years by
adding about 25% more fertilizer to his crops than he needs. What will most
likely result from this action?
Select one:
a. Increased crop yields.
b. Air pollution from the excess fertilizers
c. Soil degradation form the excess fertilizers
d. The additional fertilizer will have little to no impact.
Answer:
The correct answer is - b. Air pollution from the excess fertilizers
Explanation:
In long term using excess amount of fertilizer than requirement will lead to several condition such a soil acidity, soil degradation, soil leacing, eutrophication of waterways and many but more improtant is green house gases and air pollution.
Using the excess amount of fertilizer does not help in increasing crop yield but gives negative impact. Using fertilizer more than requirement wil lead to release of toxic and harmful gases in atomosphere and fuming.
Giving points and brainliest to the first person
1.How does Nitrogen cycle through the enviroment?
2. Trace the steps that carbon cycles from plants,animal,and enviorment?
Answer: 1. The nitrogen cycle is a biogeochemical cycle.
2. The carbon cycle is a biogeochemical cycle.
Explanation:
1. The nitrogen cycle can be defined as the biogeochemical cycle in which the atmospheric nitrogen is utilized by the plants which is fixed by the soil bacteria. The nitrogen becomes the part of the biosphere as plants utilize it as an important development mineral. The nitrogen cycle involves the nitrogen fixation in which plants fix nitrogen by the help of bacteria into ammonia, nitrification in which the ammonia is converted into nitrite, nitrogen assimilation in which the plants assimilate and utilize the nitrogen for their growth and development, and denitrification involves the reduction of nitrite into atmospheric nitrogen. The conversion of nitrogen is carried out via physical and biological processes.
2. The carbon cycle involves the atmospheric carbon dioxide being circulated in plants as they utilize it for photosynthesis. The carbon dioxide is fixed by the plants in the form of carbohydrate which is consumed by the animals and on decomposition of plants and animals dead matter release carbon dioxide gas to the atmosphere. This allows the recycling of the carbon dioxide gas in the environment.
I Will Give BRIANIEST
A scientist tests the water in a local pond and finds that it has a pH of 7.9.
What is true about the water sample?
Choose 1 answer:
(Choice A)
A
It is basic.
(Choice B)
B
It is acidic.
(Choice C)
C
It is neutral.
(Choice D)
D
It is both basic and acidic.
Answer:
it is Basic brooooooo. No B NOT C AND NOT D. oNly A
The answer is A. The ph of regular water is about 7.0 or so. so since it's 7.9 it means it's basic. You're welcome :)
What are chromosomes? How are they different between prokaryotes and eukaryotes?
Answer: A chromosome is a long DNA molecule with part or all of the genetic material of an organism. The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not
Explanation:
Chromosomes are long thread of DNA molecule. Prokaryotes have one chromosomes while eukaryotes have many.
Chromosome:
It is a long thread of DNA molecule as a part of genetic material of all living organisms.
In prokaryotes, DNA is not very much compacted.Only one chromosome is usually scene in prokaryotes.In Eukaryotes, Chromosome are very compacted and form an special structure.Multiple chromosomes are found in Eukaryotes.
Therefore, chromosomes are long thread of DNA molecule. Prokaryotes have one chromosomes while eukaryotes have many.
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To find new and alternative farming methods and practices, private companies often fund their own research and development teams.
False
True
Answer:
FALSE ALL DAY LONG
Explanation:
Which atom is involved in giving your heart energy to beat?
O carbon
O gold
O oxygen
O iron
Answer:
Oxygen
Explanation:
-How fast the heart beats depends on the body's need for oxygen-rich blood. At rest, the SA node causes your heart to beat about 50 to 100 times each minute. During activity or excitement, your body needs more oxygen-rich blood; the heart rate rises to well over 100 beats per minute.
-The heart, like any organ, requires blood for oxygen and other nutrients so it can do its work. The heart does not gather oxygen or nutrients from the blood flowing inside it. Instead, it receives blood from coronary arteries that eventually carry blood into the heart muscle.
If there will be changes on trophic levels, what will be the effects on the ecosystem?
Answer:
It can significantly alter the homeostasis of the ecosystem
Explanation:
The trophic level is the position that occupies a given organism/ population/species in the food web. In a food web, the trophic levels are organized into a first category (formed by primary producers, e.g., plants), a second level (primary consumers, e.g., herbivores), and subsequent categories (predators, e.g., carnivores). The abrupt change in the number of organisms belonging to the same trophic level generally has a negative effect on the ecosystem by modifying the trophic structure of communities. For example, decreasing the number of producers will produce a decrease in the number of primary consumers, thereby altering the homeostasis (equilibrium) of the entire ecosystem. On some occasions, it may eventually lead to the extinction of populations and species.
In which experimental set up shown would you expect the Elodia plant inside a test tube to produce the least amount of oxygen
Answer:
Due to less concentration of carbondioxide gas.
Explanation:
Elodia plant inside a test tube produces the least amount of oxygen due to limited carbondioxide gas that is necessary for photosynthesis process. If a test tube has less amount of carbondioxide gas which is a reactant in photosynthesis so in the end the Elodia plant generates less amount of glucose as well as oxygen while on the other hand, if there is more carbondioxide gas is available to Elodia plant, more oxygen as well as glucose is produced.
The baker mixed yeast in the dough and kept it away for the night , The next morning it had risen high up , Explain how this happened
Explanation:
Maybe this can help.
In bread making (or special yeasted cakes), the yeast organisms expel carbon dioxide as they feed off of sugars. As the dough rises and proofs, carbon dioxide is formed; this is why the dough volume increases.
Classical biotechnology begins around 1800,
O True
False
Answer:
True
Explanation:
5. The lion researchers in the film have studied 20% of the park and identified 41 lions. (Show your
work/justify your answer for each section.)
a. The entire Gorongosa park is 4,000 km². Approximately how large (in km) is the portion of
the park that has been studied?
ASAP PLSS
Answer:
800 km²
Explanation:
If the researchers have studied 20% of the 4000 km² park, to find out how much of the park in km they have studied, all you have to do is find 20% of 4000.
4000 x .20 = 800
800 km² is your answer.
If the area of the entire Gorongosa park is 4,000 km². Among which, 20% of the park is already studied, it means 800 [tex]km^2[/tex].
What do you mean by the researcher?A researcher may be defined as a kind of person who significantly carries out academic or scientific research in order to find some unrevealed data and information.
According to the question,
The total area of Gorongosa park = Gorongosa park is 4,000 km²
The area which is already studied = 20%.
Now, you have to find the area that is already studied in km. So, you have to calculate the 20% of 4,000 km².
The area which is already studied = 4000 × .20 = 800 [tex]km^2[/tex].
Therefore, if the area of the entire Gorongosa park is 4,000 km². Among which, 20% of the park is already studied, it means 800 [tex]km^2[/tex].
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HELP QUICK HELP ILL MARK U BRAINLIST
Answer:
B or A I think B
3.4.3 Lab: Why are cells so small?
Answer: The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. ... That is why cells are so small.
Explanation: because they can absorb nutrients much more efficiently. Because they are smaller they can efficiently absorb enough food. ... When a cell doubles in size the volume increases much more then the surface area, which is why large cells cannot receive enough food efficiently for their volume. Cells are small because they are more efficient as smaller entities. Information within small cells is transmitted more quickly and efficiently than within larger cells. ... Thus a higher cell surface area-to-volume ratio, i.e., smaller cell size, is desired for most efficient cellular activity.
The cells are so small because their small size allows them to take in food and get rid of the waste.
The cells are the basic structural and functional unit of all organisms on earth except the Viruses. The size of the cell is so little it allows the organism to maximize the ration of surface area to volume. Smaller cells are expected to have greater ratio which promotes more molecules as well as ions to move across the plasma membrane.The small size of the cell facilitate to get the nutrients inside the cell and waste outside the cell quickly. Hence, small size of cell facilitates to get food inside and get rid of waste.Learn more about cell:
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Which best describes the blood flowing in an artery?
A. It is oxygen rich
B. It contains no red blood cells.
C. It moves toward the heart.
D. It is oxygen poor.
It is oxygen rich
What do you mean by arteries?
The arteries are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body. Each artery is a muscular tube lined by smooth tissue and has three layers: The intima, the inner layer lined by a smooth tissue called endothelium.
What is oxygenated blood?
Oxygenated blood can be simply defined as a blood cell with large percentage of oxygen and low in carbon dioxide. It appears bright red in color and travels away from the heart to different parts of the body.
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The rate at which a stars burns its fuel (gas) is based on the star's
Mass
Volume
Shape
Color
Answer:
based on the mass of the star
The Drosophila genes for white eyes (w), cut wings (ct), and tan body (t) lie at map positions 2.00, 15.0, and 21.0, respectively. Of 1000 progeny, 7 are double crossovers. What is the degree of interference
Answer:
The coefficient of interference, I, is 0.1 (10% expressed as a percent)
Explanation:
Available data:
genes for white eyes (w), cut wings (ct), and tan body (t) lie at map positions 2.00, 15.0, and 21.0, respectivelyOf 1000 progeny, 7 are double crossovers.The coefficient of interference, I, is complementary with CC.
I = 1 - CC
To calculate the coefficient of coincidence, CC, we must use the next formula:
CC= observed double recombinant frequency/expected double recombinant frequency
Note:
observed double recombinant frequency=total number of observed double recombinant individuals/total number of individuals expected double recombinant frequency: recombination frequency in region I x recombination frequency in region II.By knowing the positions of genes, we can estimate the distances in MU between them per region.
The distance between w and ct genes is 15 - 2 = 13 MUThe distance between ct and t genes is 21 - 15 = 6 MUNow that we know the distances, we can estimate the recombination frequencies by dividing each distance by 100.
recombination frequency of w-ct region = 13MU / 100 = 0.13recombination frequency of ct-t region = 6MU / 100 = 0.06Now that we know the recombination frequencies in each region, we can calculate the expected double recombinant frequency, EDRF, like this:
EDRF = recombination frequency in region I x recombination frequency in region II.
EDRF = 0.13 x 0.06 = 0.0078
Now, by knowing the total number of individuals in the progeny (1000) and the number of double crossovers (7), we can calculate the observed double recombinant frequency, ODRF:
ODRF = number of double crossovers / total number of individuals
ODRF = 7/1000 = 0.007
Finally, with the values of EDRF and ODRF, we can calculate the coefficient of coincidence, CC.
CC = ODRF/EDRF
CC = 0.007 / 0.0078
CC = 0.9
And by knowing the CC we can also get the coefficient of interference, I.
I = 1 - CC
I = 1 - 0.9
I = 0.1 = 10% (expressed as a percent)
TACTTAGAGGCACCACATGGGCCTTGCACT to mRNA
Answer:
I don't know the answer
Explanation:
is is this even a question cos I don't think so.
How can the arrangement of atoms help explain how the white phosphorus and red phosphorus can both be pure phosphorus substances?
Answer:Phosphorus is a chemical element with symbol P and atomic number 15. A multivalent nonmetal of the nitrogen group, phosphorus as a mineral is almost always present in its maximally oxidized state, as inorganic phosphate.
Explanation:
Chemical element phosphorus has the atomic number 15 and the letter P in its symbol. Phosphorus, a multivalent nonmetal belonging to the nitrogen group, is generally always found in the form of inorganic phosphate, which is phosphorus in its maximally oxidized state.
What is phosphorus?The mineral phosphorus, which is also available as a supplement, is naturally present in many foods. It serves the body in a multitude of capacities. It is a crucial component of cell membranes, bone, and teeth. It maintains a healthy range of blood pH and aids in the activation of enzymes.
All tissues and cells must have phosphorus for growth, maintenance, and repair as well as for the creation of DNA and RNA, the genetic building blocks. The balance and usage of other vitamins and minerals, including vitamin D, iodine, magnesium, and zinc, depend on phosphorus as well.
Thus, Chemical element phosphorus has the atomic number 15.
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