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Related Questions
Julie has been working in the laboratory with a new antibiotic. First, she placed an
antibiotic on a petri dish of bacteria. Then she placed a solution of distilled (plain)
water in the petri dish and observed under the microscope that water moves into the
bacterial cells, causing them to burst. In the control group of bacteria that did not
receive the antibiotic, the cells do not swell or burst. Julie is trying to determine what
organelle must be damaged by the antibiotic to allow for the cell to burst.
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Answer:
contractile vacuole.
Explanation:
Contractile vacuole is an organelle which is damaged from the antibiotic and as a result the cell burst. The main function of contractile vacuole is to regulates the quantity of water inside the cell. If the contractile vacuole is damaged so it does not regulate water required by the cell as a result more water enters inside the cell which results in the bursting of the cell.
Which is the closest synonym for the word reform?
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Answer:
Reconstruct
Definition:
build or form (something) again after it has been damaged or destroyed.
Answer:
ameliorate
Explanation:
Why do computer models have limitations?
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Answer:
All because they not representative of every possible scenario.
Explanation:
They use current knowledge and scientific date‚but as those are subject to change‚the based off that knowledge and data subject to change as well.
helppppppp, pls :/ , i dunno this question
Answers
Answer:I’m pretty sure that it is the last one
Explanation:
It wants a physical adaptation and a structural adaptation is the only one that is physical
Hope this helped
Which of the following is an example of postzygotic isolation?
A. Allopatric Speciation.
B. Gamete incompatibility.
C. Hybrid sterility.
D. Polyploidy.
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Answer:
C
Explanation:
The correct answer here would be hybrid sterility.
Postzygotic isolation refers to the mechanisms of reproductive isolation that occur after two organisms of different species have successfully mated and fertilization/formation of zygote has occurred.
Generally, reproductive isolation mechanisms act to prevent members of different species from mating (pre-zygotic)or prevent their products of mating from being viable (postzygotic). A hybrid is a product from mating of two different species of organisms.
The mechanisms of postzygotic isolation include the production of hybrid zygotes that are not viable and hence, will not make it past the embryonic stage or if they do, the resulting offspring remains sterile.
Hence, hybrid sterility is an example of a postzygotic isolation mechanism.
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You're looking through a microscope at a eukaryotic cell and notice that its genetic material (DNA) is openly floating around the cytosol.
What could be a possible cause for what you're seeing through the microscope?
Choose 1 answer:
(Choice A)
A
The lysosome is damaged.
(Choice B)
B
The nucleus is damaged.
(Choice C)
C
The vacuole is damaged.
(Choice D)
D
There is no cause; genetic material should be floating around the cell in this manner.
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The nucleus is damaged
B) True or False
Write a T for true or an F for false for each statement.
Enzyme activity is affected by temperature.
b. I Enzyme activity is affected by pH.
c. I Enzyme activity is affected by the shape of the enzyme.
d. A catalyst lowers the activation energy of a reaction.
e.
Without enzymes, the chemical reactions in your body would occur too slow to support life.
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Answer:
T
Explanation:
A water molecule is polar because there is an uneven distribution of _______________ between the oxygen and the hydrogen atoms.
1 point
electrons
reactants
monomers
activation energy
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A water molecule is polar because there is an uneven distribution of electrons between the oxygen and the hydrogen atoms. Therefore, the correct option is A.
A water molecule (H₂O) consists of two hydrogen atoms linked to one oxygen atom.
The electronegativity of oxygen is 3.44 which is higher than the electronegativity of hydrogen, which is 2.2. As a result, it tends to pull the shared electrons towards itself, because of which it acquires a partial negative charge and the hydrogen atoms acquire a partial positive charge.
As a result of unequal sharing of electrons, a dipole moment in the molecule is created, making the water molecule polar.
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List the six fundamental elements found in living organisms in the text area below.
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Explanation: hopes it helps
Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus
Answer:
Carbon , hydrogen, oxygen , nitrogen , phosphorus, and sulfur
Explanation:
got right on edge.
which of the following is most likely the result of an organism having lipids in its body
A. a chipmunk buries nuts for the winter
B. a reptile slows down in colder temperature
C.a fish moves up the river to spawn
D. a walrus stays warm in the cold ocean
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how do you answer a question that is a peer review
Answers
Answer:
Consult your coauthors or a colleague who is familiar with your work.
Make sure that you address each of the comments in entirely.
Be polite in your response when you disagree with any comment/suggestion.
Wherever required, cite references, or include supplementary/unpublished data in support of your argument.
Explanation:
Also I didn't copy the answer before me, I found this one the internet just like him/her did, which is from the internet.
what helps the recycling of nutrients in an ecosystem by consuming dead organic material
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Using a fictional product or service, create a simple business plan by answering the
three questions business owners must consider.
What good will you produce, or what service will you provide?
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Answer:
Goods produced which are in high demand and services provided which is needed by the people.
Explanation:
The business owners produced those goods which has high demand in the people in order to make high profit. Those services provided by the business owners which is needed to the customers. Those goods which are in high demand make a good profit due to their importance for the customers. The business owners provides such type of services which a customer needed so the owner also make good money from providing the service.
The Goods i.e. generated that are in high demand and services provided should be required by the people.
Creation of Business plan:The owners of the business should generate those goods that contains high demand so that high profit should be made. Those services should be provided by the business owners that are required to the customers. This results in making a profit. The business owners should provide that type of services that should be required by the customer.
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A weakened immune system may be caused by
O an overproduction of lysozymes.
O muscle disorders.
O immunodeficiency disorders.
O complement systems in the blood.
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Answer:
immunodeficiency disorders,and etc
Explanation:
because immunodeficiency disorder- is a disorder that helps you attract more viruses and illness. it can bae acquired trough birth or dieting or lack of energy foods...
A weakened immune system may be caused by immunodeficiency disorders.
What is the Immune system?
The immune system means the protection of our body from different pathogens which are non-self agents. It is a complex network of cells, tissues, organs, and the substances they make that helps the body fight infections and other diseases.
Immunodeficiency disorders destructs the immune system's ability to defend the body against foreign molecules or abnormal cells that invade or attack it, such as bacteria, viruses, fungi, and cancer cells. As a result, unusual bacterial, viral, or fungal infections or lymphomas are caused and spoils the immune system completely.
Therefore, a weakened immune system may be caused by immunodeficiency disorders.
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What is the cell membrane made of?
Choose 1 answer:
(Choice A) Lipids and proteins only
(Choice B) Lipids only
(Choice C) Lipids, proteins, and carbohydrates
(Choice D) Carbohydrates and lipids only
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Answer:
(Choice C) Lipids, proteins, and carbohydrates
Explanation:
The cell membrane is also known as the plasma membrane. The cell membrane made of lipids, proteins, and carbohydrates. Therefore, option C is correct.
What is cell membrane ?The cell membrane is also called as the plasma membrane. It is the outermost covering of animal cells. It is a semi-permeable membrane made up of lipids and proteins and carbohydrates.
The plasma membrane produce the boundary in between the outer environment and living systems.Mitochondria, chloroplast , and nucleus consist of two membranes that are one outer and one inner.
The cell membrane is present on the cell walls of the cells in animals. The cell membrane is located in between the cytoplasm and cell wall in plants. The cell membrane provide protection to the cell.
Thus, option C is correct.
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what do birds eat to survive the evironment
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Answer:
Birds can eat fruit, insects, fish, or small mammals
Explanation:
PLEASE HELP!!! WILL MARK BRAINLIEST
Answers
Answer:
its f-gamma ray telescope since thats what is being observed
Explanation:
When an experiment is repeated and the new results are different from the original results what may likely be inferred?
A)
Additional test/trials are needed.
B)
Both results are wrong due to the discrepancy.
C)
The hypothesis is incorrect and must be modified.
D)
The first must be inaccurate because you are sure the second results
are correct.
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Answer:
A
Explanation:
You have to repeat it to see which result you see more of, because that would most likely be the correct solution.
Answer:
a
Explanation:
just did it
science- CANT SOMEONE HELP ME PLEASE I NEED HELP OF ONLINE SCHOOL. There are two photos they are the same problem just find out what the answer is.
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Answer:
Your answer will be 24mL.
What substance gives plant their green color ?
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which is a component of a phospholipid a) carbon ring b)hydrophilic head c)amino acid
Answers
Answer:
Hydrophilic head
Explanation:
The phosphate group is the negatively-charged polar head, which is hydrophilic.
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3
What is an inference?
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Answer:
a conclusion reached on the basis of evidence and reasoning.
Explanation:
Make a hypothesis. Include if__then____because in the statement. 15 POINTS!!
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What niche do lions fill in their habitat?
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Answer:
Lions are a big predator in their savanah habitat. They hunt zebras, wildebeast, and compete with hyenas.
Hope that helps
What best describes ecosystem on earth
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Answer:
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.
Explanation: These biotic and abiotic components are linked together through nutrient cycles and energy flows.
Decide which two organisms to compare in your paper. Choose one organism that lives in the
tundra and another from a
desert region so that you are working with two contrasting environments. Read about the two habitats, and describe their
characteristics. Here are a few characteristics to consider:
• average temperature
• seasonal changes
• average rainfall or snowfall
vegetation
• land features
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Answer:
Temperatures in a desert climate range from 86 to 104 degrees Fahrenheit, while summers are wet and winters are dry. When the rains fall, herds of prey animals abound as they feed on the lush grasslands and water at the many waterholes and rivers. The average rainfall in the desert is 10 inches per year. Sahara desert vegetation includes African Welwitchsia, date palm, thyme, magaria, olive trees, orange trees, and fig trees. Apart from these, more than half of the Sahara desert is extremely barren with no vegetation found. However, there are still some areas in the Sahara desert that are lush, containing abundant trees and plants. The most common landscape features found in deserts are sand dunes, yardangs, desert pavements, debris, playas, oases, mesas, alluvial fans, arroyos and buttes. These landforms vary from desert to desert. In areas dominated by the tundra climate type, winters are long and cold, especially in the region north of the Artic Circle where, for at least one day in the year, the Sun does not rise. Winter precipitation generally consists of dry snow, with seasonal totals less than in the summer when cyclonic storms that develop along the boundary between the open ocean and sea ice yield rainfall. The average snowfall in the tundra is 10-40 inches per year. Tundra vegetation is composed of dwarf shrubs, sedges and grasses, mosses, and lichens. Scattered trees grow in some tundra regions. The ecotone between the tundra and the forest is known as the tree line or timberline. The arctic tundras located between the north pole and the coniferous forests or taigaregion. It is characterized by extremely cold temperatures and land that remains frozen year-round. Arctic tundra occurs in frigid mountaintop regions at very high elevations.
Lightning is one of the natural mechanisms by which atmospheric nitrogen is converted to ammonia or ammonium ions.
Group of answer choices
A)False
B)True
Answers
B
The statement "Lightning is one of the natural mechanisms by which atmospheric nitrogen is converted to ammonia or ammonium ions" is definitely true. Thus, the correct option is B.
What is Lightning?Lightning may be defined as the occurrence of a natural electrical discharge of a very short duration. The discharge of atmospheric electricity produces the flashing of light.
Lightning is one of the natural mechanisms that initiate the process of nitrogen fixation. Through this process, the atmospheric nitrogen (N2) is converted to ammonia (NH3) or ammonium ions (NH4+).
Therefore, it is well described above.
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Help please anything helps.
Answers
Answer:
D, yes, because new islands will form as the volcanoes emerge from the sea.
Explanation:
Which of the following could be a hypothesis for what causes a scarlet ibis to have red feathers?
A. The red feathers make the bird more beautiful to people.
B. A chemical in the bird's food produces the red coloring
C. What does the scarlet ibis eat?
D. The feathers are red because a wizard cursed the bird long ago.
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Explanation: This is a testable statement formed through an inference
Definition: This is the process of matter changing from the liquid to the solid state.
Example: snow, ice forming in your freezer
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Answer:freezing
Explanation:
Answer:
freezing
Explanation:
