Answer:
A. Red and blue
Explanation:
Theodor Wilhelm Engelmann, born in 1843 and died in 1909, was a German scientist. He was the scientist who detected which wavelengths of light produced the best photosynthetic activity in green alga. In his experiment, Engelmann exposed the photosynthetic algae to different wavelengths in the light spectrum. He then added aerobic (oxygen-dependent) algae to see where they will accumulate the most in order to detect the best wavelength for algae photosynthesis.
He discovered that the aerobic bacteria accumulated in the parts of the algae exposed to red and blue wavelength of light. This is because the algae exposed to the red and blue light produced more oxygen due to increased photosynthetic rate. This attracted the aerobic bacteria, which needs oxygen, to that particular area with that wavelength.
A peacock and a turkey mate, producing a viable but infertile turcock. This is an example of:
A.gametic isolation
B.hybrid inviability
C.behavioral isolation
D.hybrid sterility
E.hybrid breakdown
Answer:
E. breakdown
I am not sure
Ocean ocean convergence produces
Answer:
Ocean-ocean convergences produce deep sea trenches.
Explanation:
Which of these would not be considered a genetic trait?
Answer:
A
Explanation:
If there are 10 chromosomes in a particular cell at the start of prophase how many will be present in the same cell at the end of anaphase. Before cytokinesis has begun? Hint: first of all, state the number of chromosomes. Then explain why you think so.
Answer:
20 chromosomes
Explanation:
Mitosis is a kind of cell division that results in daughter cells with same number of chromosomes as the parent cell. It involves stages including Prophase, Metaphase, Anaphase and Telophase. In prophase, the Chromatin condenses into Chromosomes.
In Anaphase stage, the 10 chromosomes as mentioned in the question divides into opposite poles of the cell. One individual chromosome contains two sister chromatids, which actually separates in the Anaphase stage. Hence, at the end of the Anaphase stage, there will be 10 chromatids each at opposite poles of the cell. Each chromatid at this stage is considered a chromosome.
Hence, a cell with 10 chromosomes will contain 20 chromosomes (10+10 chromatids on each pole) in the Anaphase stage just before the cell divides into two in a process called CYTOKINESIS.
What will a hypothesis become if it is supported by repeated
experimentation?
A. A scientific theory
OB. A conclusion
C. A prediction
D. A control
Answer:
I would go with a conclusion because the study is repeated.
Explanation:
What does the pulmonary vein do?
O A. Carries carbon dioxide-rich blood from the heart to the lung
O B. Carries carbon dioxide-rich blood from the lung to the heart
O C. Carries oxygen-rich blood from the heart to the lung
O D. Carries oxygen-rich blood from the lung to the heart
Answer:
B, Carries Carbon dioxide-rich blood from the lungs to the heart
Explanation:
Why is it so important that we think about waste and what happens to it? *
Yes Its Important
yes it's good important to know about placed because if you think about waste then what saving the earth and remember that and plastic or wood will keep us and USA backlash tired and save future of tomorrow a mother nature and so is a very good thing to think about ways are the best thing about you will reset and two more things and have people and mark my words this happy a lot thank you have a nice day
Answer:
Mainly because it can destroy our lives. Waste is usually thrown into waste pits or places specifically for waste but what happens when there is no more place to put it? It can cause pollution and harm to wild life so if we pay more attention to it and try to stop how much waste is thrown out then maybe the earth will be able to live longer.
BIOLOGY EXPERTS!!!! Shared core processes support the relatedness of all eukaryotes. Discuss how chromosome structure and function provides insights into the history of life on Earth.
Answer: Many eukaryotic organisms are related based on the shared core characteristics and processes.
Explanation:
The following are the shared core processes shared by all eukaryotes.:
1. Cytoskeleton: It is a network of structural proteins, that helps in movement of cell and organelle support.
2. Membrane-bound organelle: Mitochondria and chloroplast are organelles that formed via endosymbiosis these are present in all eukaryotic organisms.
The DNA is the basic genetic material that is found in almost majority of living beings on earth. The DNA is being transmitted from the primitive organisms on earth to the modern day organisms. The chromosomes are the carriers of DNA. These chromosomes are passed from the parents to the offsprings through reproduction. This is the basis of relatedness among organisms and these are also considered while studying the phylogenetic relationships.
A student made a model of an onion skin cell she viewed using a microscope. The scale is 1:500.The students cell model has a length of 15cm. How many centimeters is the real cells length?
Answer:
Length of the real cells = 7500 cm
Explanation:
A scale model is a physical representation of an object that has the same aspects as that of the object.
A scale model can be used in fields like engineering, film making, salesmanship, etc
Length of the student's cell model = 15 cm
The scale is [tex]1:500[/tex]
So,
Length of the student's cell model / Length of the real cells = [tex]1:500[/tex]
15 / Length of the real cells = [tex]1:500[/tex]
Length of the real cells = 15 × 500 = 7500 cm
Answer:
7500 cm
Explanation:
we in the same grade problem i am on this test
All viruses causes diseases and are called parasites.. true or false please help
Answer:
False
Explanation:
theres this site called weegy just put weegy after every question and answers come up
(URGENT) What system in the body carries information from the glands and organs to the brain? A. Lobe system B. Neural Feedback System C. Endocrine System D. Nervous System
Sensory neurons transmit nerve impulses from sense organs and internal organs to the brain via the spinal cord. In other words, they carry information about the inside and outside environment to the brain. Motor neurons transmit nerve impulses from the brain via the spinal cord to internal organs, glands, and muscles.
thank you hope it helps
The system in the body which carries information from the glands and organs to brain is endocrine system.
What is endocrine system?
All mammals, birds, fish, and many other forms of living things have endocrine systems, commonly known as hormone systems. They are composed of:
Throughout the body, there are glands; hormones that are produced by the glands and released into the bloodstream or the fluid around cells; and receptors in various organs and tissues that detect the hormones and react to them.
All bodily components are affected by hormones, but only target cells with the right receptors can react. In both humans and other vertebrates, more than 50 hormones have been discovered.
Therefore, The system in the body which carries information from the glands and organs to brain is endocrine system.
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The bottom area of a pond or lake where very little sunlight reaches is the
O trophic zone
O plankton zone
littoral zone
O benthic zone
Answer:
benthic zone
Explanation:
Answer:
D: benthic zone
The law of April 6 1830 signaled a major shift in
Answer:
This isn't biology LOL. But "the implementation of the American policy of westward expansion."
Explanation:
What’s the most common type of mutation observed in living populations
What is a example of accretion?
Answer:
An example of accretion is the garage someone may bulid on his home.
Many species diverge from a single ancestor in the process of
A. gene flow
B. adaptive radiation
O C. radioactive dating
D. genetic isolation
Answer:
genetic isolation
Explanation:
how does the virus use a host cell to make copies of itself
Answer:
I wasn't quite sure what virus you were referring to in your question, but here's a general answer: Viruses use their host cells' machinery to replicate themselves.
If they are a specific type of virus known as a retrovirus, they have the ability to use the host cells' enzymes to change the RNA contained within the virus into DNA (via some type of replication I suppose).
In other cases, if they contain DNA instead of RNA (that is, the virus), they can use the host cell's machinery to create RNA via enzymes involved in transcription and/or they can incorporate that DNA into the host cell's DNA. This is part of a type of viral replication cycle known as the lysogenic cycle.
In another type of viral replication cycle known as the lytic cycle, the virus simply has itself and its genome duplicated until the host cell bursts, releasing the viral material. Here, again, the virus uses the host cell's machinery to replicate itself.
Identify the large brown tectonic plate and whether it is oceanic or continental
Option and image is not provided in the question. So the image is attached below and complete question is as following:
Identify the large brown tectonic plate and whether it is oceanic or continental?
A. Eurasian, continental B. South American, oceanic C. African, oceanic D. North American, continental
Answer:
D. North American, continental
Explanation:
Tectonic plates are defined as the region or area of the Earth's crust and uppermost mantle, that is present far below the sea around the world.
The given image shows that the large brown tectonic plate is North America and it is continental plate because it lie under surface land masses.
Hence, the correct answer is D. North American, continental .
Answer:
The answer is D because the plate is not touching the water and is the north American
Explanation:
How does the stratification of the earth make plate tectonics possible?
Answer:
Explanation:
Convention currents causes magma to rise and fall therefore it moving the earths plates in different directions
A red blood cell placed in distilled water will swell and burst due to the movement of Your answer: salt from the distilled water diffusing into the cell water molecules moving by osmosis into the cell water from the red blood cell moving into the distilled water
Answer:
Due to the movement of surounding water ijnto the cell.
Explanation:
A red blood cell placed in distilled water will swell and burst due to the movement of - water molecules moving by osmosis into the cell.
Osmosis is the movement of water that diffuses from a higher water concentration area to a lower water concentration area.
The distilled water outside the red blood cell, since it is 100% water and no salt, is hypotonic to the red blood cell.The red blood cell will gain water, swell ad then burst.Thus, a red blood cell placed in distilled water will swell and burst due to the movement of - water molecules moving by osmosis into the cell.
Learn more:
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What are some examples of comparative embryology in evolution?
Answer:
Similarities in structure among distantly related species are analogous if they evolved independently in similar environments. They provide good evidence for natural selection. Examples of evidence from embryology which supports common ancestry include the tail and gill slits present in all early vertebrate embryos.
Why is it important to monitor the pH and other factors in the AgWorks lab
Answer:
To know the actual pH for a particular organism.
Explanation:
It should be understood that in a 6,100-square-foot lab and classroom named AgWorks, students not only learn how to grow food in a controlled environment, but also explore and have the idea of agriculture-related careers.
In this aspect, the monitoring of pH is very important because not all organism survive in acidic and basic mediums, but there are some that required neutral medium for their survival. And this is the reason why to always affirm the particular pH necessary for the survival of a particular organism.
Minerals come from organic materials.
Please select the best answer from the choices provided
OT
OF
Answer:
false
Explanation:
not all materials are organic materials. so False
Uranium can supply energy for the world's electricity without increasing greenhouse gases. Which of these statements best describes a benefit of uranium mining?
Answer: Uranium mining does not cause air pollution.
Explanation:
Answer:
It does not cause any air pollution.
Explanation:
Because uranium is not like coal, oil and other resources such as. Which can cause a heavy amount of air pollution, as uranium is only used for nuclear supplies.
During daylight savings, Christie's neighborhood soccer games get cut short because the sky becomes dark much earlier than during the summer. Her father talked to the electric company about installing large lights above the field so Christie and other kids in the community could continue their soccer games after dark. The electric company informed Christie's father that although the light poles could be installed, there are too many short trees and trees with low branches in the park to connect electrical lines. Without electricity delivered to the light poles, they would not work. Christie and her father talked about this information with neighborhood residents and together they came up with several ways to solve the problem.
Considering the concerns of everyone involved, which idea would be the BEST solution to the problem?
A)
Instead of electrical light poles, install solar-powered light poles.
B)
Parents can leave their cars running with headlights on facing the park.
Build several large fire pits around the field and light them each night.
D)
Cut down the larger trees, install the electrical lines, and replant the area
with shrubs.
Answer:
If I am big brained, I believe the answer is A
Explanation:
Who holds the public property rights? A. individuals B. government C. businesses D. local communities
Answer:
B. Government
Explanation:
I do not know if it's okay.
Which pedigree symbol is used to represent a female carrier of a recessive X-linked trait?
Answer:
B.
Explanation:
Answer:
Half-Circle
Explanation:
Mandy and Pat are discussing a movie that showed someone being injured by radio waves. Mandy says that's not likely because radio waves are low frequency and low energy, and Pat says that it is likely because otherwise they would not put it in a movie. What is the best way to help them decide if the information is true?
Answer:
I think the answer is C.
Explanation:
The best way to help them to decide about the information of the scenario is that they can use reliable web sites or books to get more information. The correct option is C.
What are reliable information?Reliable information or data is accurate or trustworthy: Broker-dealers must use their discretion when determining whether issuer information is reliable.
Trustworthy information/data/evidence currently, investors do not always have timely access to reliable information.
Reliable data must come from trustworthy sources. A reliable source will provide a "thorough, well-reasoned theory, argument, etc. based on strong evidence," according to UGA Libraries.
Scholarly, peer-reviewed articles and books are examples of highly credible sources.
Recognizing the type (genre) of knowledge you are going to encounter allows you to predict its form, function, and context, making what you find more understandable and assisting you in determining the information's relevance and validity.
Thus, the correct option is C.
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Your question seems incomplete, the missing options are:
They can write a letter to the director.Movies are reliable sources, so they can assume Pat is correct.They can use reliable web sites or books to get more information.They can watch another movie in the series to see what happens next.In which situation would all of the larger elephants in a herd most likely stand shoulder-to-shoulder around a young calf? to protect the calf from predators to play a game with the calf to keep the calf shaded if it is sunny out to keep the calf dry if it is raining
Answer:
a
Explanation:
What is the original source of energy for gasoline?
O plants
O Sun
O petroleum
O fossil fuels
Answer:
Sun
Explanation:
