Answer:
Organs
Explanation:
It is a system of cells and tissues. Organisms are comprised of organs. Btw what anime do you like?
Answer:
lol it's classified as an organ
Explanation:
im 99.99%sure
A biology student looked through a microscope and observed an Elodea cell in a drop of water and illustrated it in diagram A. He added a 10% hypertonic salt solution to the slide. He then observed the cell and illustrated the change in diagram B. What caused the change in the appearance of the cell after the salt solution was added?
More water flowed into the cell than out of the cell.
More salt flowed into the cell than out of the cell.
Lass salt flowed into the cell than out of the cell.
More water flowed out of the cell than into the cell.
Answer:
There are no diagrams in this question, however, it can be answered.
More water flowed out of the cell than into the cell.
Explanation:
According to this question, a biology student added 10% hypertonic salt solution to an Elodea cell in a drop of water. The student illustrated the changes observed in diagrams A and B. Based on the principles of OSMOSIS, which is the movement of water from a region of lower solute concentration to a region of higher solute concentration, water will flow out of the cell.
Since the solution outside the Elodea cell has more solute solute/salt concentration, water will be move down the concentration gradient from the cell into the extracellular solution. Hence, more water flowed out of the cell than into the cell.
how do trees prevent flooding
Answer: the trees prevent flooding by the water so when water is higher it prevents flood
Answer:
by
Explanation:
your basement flooded once, it can happen again. Fortunately, there’s a lot you can do to prevent a flooded basement. That’s where we come in. As a basement waterproofing company, Ohio Basement Systems offers basement flood prevention and waterproofing solutions that will ensure that your basement stays dry.
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Different kinds of substances have different properties. Compare and contrast the electrical properties of salts, metals, and acids.
so e.coli have mitochondria and undergo cellular respiration?
Answer:
No
Explanation:
E. coli are prokaryotes, meaning they do not have membrane-bound organelles like mitochondria.
However, they do perform respiration to produce the energy needed for cellular processes. They can perform both aerobic respiration (in the presence of oxygen) and anaerobic respiration (in the absence of oxygen).
Since they don't have any membrane-bound organelles, these processes take place in the cytoplasm
Which of the following elements is required for growth and development and is in our DNA? *
hydrogen
carbon
oxygen
nitrogen
phosphorus
Answer:
Nitrogen
Explanation:
Nitrogen is the most abundant element in our atmosphere and 7th most abundant in the universe. It is vital in the formation of nitrogenous bases which are the key bonds that form nucleic acids such RNA and DNA.
the rain shadow effect is caused by
Which of the following most nearly approaches the commonly preferred soil pH?
A pH of 8
A pH of 5
A pH of 14
A pH of 3
Answer:
I did the test and put A pH of 5 but I got it wrong so I redid the test and put
A pH of 8 and I got it right!
Explanation:
if an Object has a density of 0.9 g/cm^3 and you put it into water with the flow or sink
Humans are unusual because our cultural practices can actually change our environmental circumstances. We can change the environment in which natural selection acts on our traits. Describe how this process has played out in the evolution of adult lactose tolerance. Describe how this process has played out in the maintenance of the sickle-cell trait. Can you hypothesize any similar situations where our future evolution may be influenced by cultural practices we have today
Answer:
Adult humans capable of digesting lactose were selected, thereby this phenotypic trait became common in dairy consuming societies
Explanation:
From the first moment after birth, babies can digest lactose in milk because they produce lactase, which is an enzyme capable of hydrolyzing lactose into glucose and galactose. In human societies that non consume milk products, the level of the lactase enzyme abruptly decreases during the first years of life due to the inactivation of the gene encoding this enzyme (i.e., lactase gene). However, in dairy consuming societies, a genetic mutation in the lactase gene that appeared among early cattle-raising people in Europe was selected, nowadays, this mutation is mostly present (i.e., in a higher frequency) in these societies, thereby adult people is generally adapted to consume lactose-based products.
Which of the following is a central idea of cell theory? (5 points)
All living things are made of at least two cells.
O Cells cannot live alone as single organisms.
O All living things have five or more types of cells.
Cells are the basic unit of structure and function in living things.
Which part of scientific design occurs when an experiment is conducted by more than one scientist to determine the validity of results?
Replication
Research
Trials
Variables
The answer is: Trials.
Trials part of scientific design occurs when an experiment is conducted by more than one scientist to determine the validity of results. Thus the correct option is C.
What is trail?Researchers gather information, group volunteers according to broad characteristics, and compare changes over time.
Repeated trials are when researchers do a measurement multiple times - at least three, commonly five, but the more the better. When they measure something once, the chance that the number he get is accurate is much lower. But if researcher measure it several times, then he can take an average of those numbers and get a result that is much closer to the truth.
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Answer:
D
Explanation:
What is the purpose of stage directions?
Answer:
The purpose of stage directions is ,stage directions serve many functions , but their primary purpose is to guide actors’ movement on the stage, called blocking.
Explanation:
Their primary purpose is to guide actors’ movement on the stage, called blocking.
Answer:
"To describe details about where a scene takes place and how an actor must deliver his or her lines"
Explanation:
I got it right on my test ;)
True/False
Indicate whether the statement is true or fulse.
1. A career in food science limits the individual to work in a lab as a scientist.
2. An agriscience technician career requires a college degree.
3. American agriculture is the world's largest commercial industry.
4. About 20 percent of the careers in agriscience require college degrees.
5. Large farm operations can produce more food than one farmer.
6. Agriscience jobs occur only outdoors.
7. Production agriculture involves producing literature about growing food crops.
8. People who haul agricultural commodities from their production sources work in the segment called
agricultural processing
9. U.S. consumers spend about 15 percent of their income on food.
10. Landscape designers work in the segment known as forestry.
Answer:
true
Explanation:
sorry if i am wrong
What are some examples of disturbances that lead to secondary succession
Answer:
Secondary succession occurs when the severity of disturbance is insufficient to remove all the existing vegetation and soil from a site. Many different kinds of disturbances, such as fire, flooding, windstorms, and human activities (e.g., logging of forests) can initiate secondary succession.
Explanation:
What type of pollution causes health problems primarily through decreased mental health and stress?
A. Species extinction
B. Acid rain
C. Noise pollution
D. Water pollution
Answer:
Noise pollution
Explanation:
6. Jayden recently learned that the atmosphere is made of gases. Which is NOT a way in which
gases are helpful to life on Earth?
A. It provides carbon monoxide to help plants grow
B. It protects us from the Sun's harmful rays
C. It allows us to breathe
D. It protects us from meteors
It’s earth and space science
Answer:
B
Explanation:
It protects us from harmful rays
Diego said that some plants can be grown from stem cuttings, but Jay disagrees. Who do you agree with and why?
Answer:
I gree with Diego
Explanation:
Because there's what we call drafting to improve on plant yields.
What is accretion?
PLEASE HELPPPPP!!!
Answer:
b is the answer accretion means to add or to increase
Answer:
its b
Explanation:
i have the same test
Andre said that all plants grow from seeds but you disagree. Explain how Andre is wrong in 1-2 sentences, and give an
example:
Answer:
I disagree
Explanation:
Because some plants don't grow from seeds like cassava.
Some plants don't bare fruits which contain seeds and use spores for example algae.
Vaccination and health records are not required in the child-care facility:
For infants.
For all children.
For school-age children.
In child-care homes.
in child-care centers.
Answer: for school - age children
Explanation: student vaccination and health records are not require because training requirements that are provided by national organization includes evidence of competency developed by the department of children and families.
how come one type of matter can be converted to a totally different type
Answer:
the type of matter probably turned into a whole different chemical thing
Explanation:
Which energy sources could provide energy to run an electric vacuum cleaner or power the lights in a football stadium?
POSSIBLE
solar, hydroelectric, and nuclear
geothermal, wind, and biomass
neither A or B
both A and B
Answer ::
solar,wind,biomass
How do was the carbon cycle most different before 1900s
Answer:
I would probably say that it was most different because of the cars. The first car was released in 1885, but they weren't really popularized in America until the 1920s. So therefore, Earth's atmosphere was much better than it is now.
The discovery of cells was made possible by the invention of microscopes. Today, several different types of microscopes are used by scientists. Which of the following best describes transmission electron microscopes? A.Transmission microscopes produce images of cell surfaces. B.Transmission microscopes produce three-dimensional images of cells. C.Transmission microscopes produce highly detailed images of cell structures. D.Transmission microscopes produce images of living cells.
Answer:
C
Explanation:
:)
The statement that best describes transmission electron microscopes is:
C.Transmission microscopes produce highly detailed images of cell structuresA microscope is the instrument that is used to view microorganism and magnify them so that they cab be visible to the human eyes.
The transmission electron microscopes are those micrpsccp[es wjich makes use of a particle beam in order to produce a well magnified image and can magnify an object uo to two million times.
As a result of this, they produce highly detailed images of cell structures.
Therefore, the correct answer is option C
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1. A student conducted research about the roles of molecules in metabolic processes
such as digestion. She found one experiment that revealed the following about a
certain molecule:
• The molecule can break down proteins into amino acids.
• The molecule itself can be broken down into amino acids.
• The molecule is found in high concentrations in the small intestines of humans.
The molecule is most likely-
Answer:
Enzyme- Peptidase/protease
Explanation:
According to this question, a student is conducting an experiment to determine the roles of molecules in metabolic processes such as digestion. Based on what she found out that the molecule, which itself can be broken down into amino acids, can also break down proteins into amino acids, this suggests that the molecule being described is a PROTEOLYTIC ENZYME.
This is because an enzyme is made up of proteins which can be denatured or broken down into its simplest unit (amino acids) and also, a substance that breaks down amino acid is said to be PROTEOLYTIC.
However, another observation that the molecule is found in high concentrations in the small intestine was made, hence, the enzyme is a PEPTIDASE OR PROTEASE, which are secreted into the small intestine by the pancreas to aid digestion of proteins.
A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. Which of the macromolecule groups is this liquid MOST likely to be a member of?
A.
proteins
B.
carbohydrates
C.
nucleic acids
D.
lipids
Why are bacteria such as Rhizobium and cyanobacteria so important in the
nitrogen cycle?
A. They return nitrogen gas to air
B. They fix atmospheric nitrogen gas for the food chain
C. They decompose dead plants and animals
D. They build protein in plants
Answer:A. They return nitrogen gas to air
Explanation:
Answer:
The correct answer is B
Explanation:
Got it correct on GAVS..
An artificial cell is with a solution of 2% protein and placed in a solution with a 8% protein concentration. Predict what would happen to the cell after a few hours.
Answer:
water would diffuse out of the cell
Explanation:
proteins can't pass through the cell membrane, water can.
Water will diffuse in the outer part of the cell after a few hours.
What is cell?Cell is defined as the base of life as it is the structural as well as functional unit of life. Cell is made up of pre existing cells and the cell contain various cell organelles such as mitochondria, endoplasmic reticulum, ribosomes, golgi appratus, nucleus, and cytoplasm.
Basically, cell is of two type one in prokaryotic and another one is eukaryotic. The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.
The unicellular animals are made up of single cell and all the functions carried out in a single cell like amoeba and multicellular organisms are made up of multiple cells and there is specific cell for specific functions.The prokaryotic cell is known as pre mature cells as they do not contain cell organelles and eukaryotic cell are known as advanced and developed cells as they contain several cell organelles.
Therefore,Water will diffuse in the outer part of the cell after a few hours.
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All of the following occur in both DNA and RNA EXCEPT
a.four nitrogenous bases.
b. a phosphate-sugar backbone.
c. a double-stranded molecule.
d. All of these are found in both DNA and RNA.
Answer:
a
Explanation:
because there are only 2 bases that occur in both
Answer:
It is c
Explanation:
DNA is a double helix, RNA is a single strand
What term describes the set of chromosomes matched together and labeled as numbered chromosomes?
Answer:
Here is your answer
Homologous pair
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