Answer:
• covers the body and makes up inner lining
• protects against damage, dust, bacteria
Explanation:
A group of students investigated how the salt content of water affects a plant that
lives in an aquatic ecosystem. On one slide, the students placed a piece of a leaf of
an aquatic plant and then added a drop of tap water. On a second slide, they placed
a piece of the same leaf and then added a drop of 10% salt solution. The students
observed both leaf pieces with a microscope. They repeated the process three times.
The table below summarizes their findings.
Observations of Aquatic Plant Cells
Condition Cell Membrane Vacuole Chloroplasts
Slide 1: Leaf in tap
water
Just inside cell
wall
Large, fills most
of cell
Near edges of cell,
around vacuole
Slide 2: Leaf in
10% salt solution
Pulled away from
cell wall
Invisible
Clumped in center
of cell
Which statement is the BEST explanation for these findings?
a The 10% salt solution was hypertonic; the tap water was isotonic.
b The 10% salt solution was hypotonic; the tap water was hypertonic.
The 10% salt solution was isotonic; the tap water was hypertonic.
O The 10% salt solution was isotonic; the tap water was hypotonic.
1. The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle.
carbon dioxide
carbon sink
carbon source
carbon flux
2. Bacteria add carbon to the carbon cycle by
being consumed by larger organisms, such as plankton.
decomposing dead organisms.
exchanging carbon dioxide and oxygen gases.
performing photosynthesis.
3. Breathing is related to the carbon cycle because(1 point)
only animals release carbon dioxide as a waste product.
it produces energy.
organisms exhale carbon dioxide.
it converts glucose and oxygen to water and carbon dioxide.
4. Which of the following is a carbon sink in the desert?(1 point)
cacti
snakes
plankton
insects
5. Where does cellular respiration occur?(1 point)
bacteria
lungs
chlorophyll
mitochondria
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Answer:
it is what the coments
Explanation:
PLEASE ANSWER————-Apply: Where in the Gizmo (and in real life) do the following energy conversions occur?
26.
Chemical to thermal to electrical current:
27
Gravitational potential to kinetic to electrical
current:
28.
Electrical to sound, radiant and thermal energy
29.
Nuclear to thermal to electrical current
Answer:
I'm not sure but I think the answer is 28
Explination:
Electrical energy is a form of energy resulting from the flow of electric charge whereas Gizmos are in microwave and etc which includes electrical,sound,radiant,and thermal energy.
I really need the answer to this question! Please help!!!!
what color eye is this?
Answer:
haze/green
Explanation:
If thats ur eye it is SO pretty
lol mine r brown
In your own words, describe how redshift gives evidence that the stars are moving farther and
faster away from Earth. Include the following words in your explanation light, stars, redshift
wavelength, change, distant.
Answer:
ALL OF THEM
Explanation:
Answer:
all of the above
Explanation:
Which best describes the difference between wave A and wave B? O Wave A has a greater pitch and frequency. O Wave B has a greater pitch and frequency. O Wave A has a greater pitch but lower frequency. O Wave B has a lower pitch but greater frequency.
Write a paragraph explaining the function of a cell wall and cell membrane and why plants have cell walls and animal cells do not.
plssssssssssssssssssssssss a good paragraph with good vocabulary
A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism.[1] Cell walls are present in most prokaryotes (except mollicute bacteria), in algae, fungi and eukaryotes including plants but are absent in animals. A major function is to act as pressure vessels, preventing over-expansion of the cell when water enters.
Which statement best describes a portion of the molecule represented below?
a. It consists of many ribose sugars
b. It unites with amino acids in the cytoplasm
c. It contains uracil, which functions in protein synthesis
d. It consists of alternating phosphates groups and deoxyribose molecules
Answer:
d. It consists of alternating phosphates groups and deoxyribose molecules
Explanation:
The statement above best describes a portion of the molecule that is represented here.
Actually, the molecule represented here is the Deoxyribonucleic acid (DNA). The molecule is composed of two polynucleotide. The DNA carries genetic properties that lead to growth, development, reproduction and functioning of organisms. The phosphate group and deoxyribose molecule are found attached to the DNA. The phosphate group is also found in RNA and in ATP. The deoxyribose is known to be a five-carbon sugar molecule which helps to form the phosphate backbone of DNA molecules.
The given molecule is consists of alternating deoxyribose molecules and phosphates groups.
DNA:
It is the biomolecule that is made up of nucleotide polymers. Nucleotide are made up deoxiribose sugar, phosphate, and nitrogenous bases.
In a DNA strand one nucleotide link with another by the phosphodiester bond in which 3' OH of pentose sugar bond with 5' OH of phosphate.
Therefore, the given molecule is consists of alternating deoxyribose molecules and phosphates groups.
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I need help with this question now please
Answer:
The answer is:
(C) Substances from an area of high concentration to and area of high concentration.
Explanation:
Question 5
Which of the following is an autotroph?
Shark
Fish
Snail
Algae
Fungus
Algae is an autotroph. Autotrophs include organisms including plants, algae, plankton, and bacteria. Producers, primary consumers, secondary consumers, and tertiary consumers make up the food chain.
An autotroph is what?An organism that can manufacture food by utilizing light, water, carbon dioxide, or other chemicals is known as an autotroph. Autotrophs are occasionally referred to as producers since they grow their nourishment. Although the most well-known autotroph is a plant, there are numerous more types of autotrophic creatures.
What exactly are heterotrophs and autotrophs?Autotrophs are referred to as producers since they can generate their food using energy and raw resources. Plants, algae, and several varieties of bacteria are examples. Heterotrophs are known as consumers because they devour producers or other consumers. Humans, dogs, and birds are all instances of heterotrophs.
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What is the relationship between respiration and cellular respiration?
What is the difference between a partial blockage and an obstruction blockage?
What is the first aid for choking?
respiration is when you breath and cellular respiration involves taking the cells from when you breathe and turning it into chemical energy.
partial blockage can be cause by cancer within the bowel area or inflammation within the bowel area. obstruction blockage is caused by tissue compressed in the gut.
for first aid, you turn the individual on their back and deliver 5 back slaps between their shoulder blades, then do 5 chest thrusts.
A _is something in the environment that causes an organism to
respond . *
Stimulus
Response
Effect
Which best describes the importance of carbohydrates to organisms?
A. Carbohydrates provide an additional source for amino acids.
B.Carbohydrates provide an immediate energy source
C. Carbohydrates provide permanent storage for genetic information.
D.Carbohydrates provide storage for water molecules
Answer:
[tex]\boxed {\boxed {\sf B. \ Carbohydrates \ provide \ an \ immediate \ energy \ source}}[/tex]
Explanation:
Carbohydrates are important because they provide the body with energy. It's essential to consume the correct amount of carbohydrates for your body, but make sure they are healthy (examples: whole grain, squash, sweet potatoes, beans)
Carbohydrates are easy for the body to break down. The body will digest these first into simple sugars, like glucose. The glucose is then used in cellular respiration to produce ATP or energy.
Therefore, carbohydrates can quickly provide energy for the body. The best answer choice is B.
Answer:
Carbohydrates provide energy to organisms.
Explanation:
I'm 100% sure because Carbohydrates can also be defined chemically as neutral compounds of carbon, hydrogen and oxygen. Carbohydrates come in simple forms such as sugars and in complex forms such as starches and fiber. The body breaks down most sugars and starches into glucose, a simple sugar that the body can use to feed its cells
A(n) _____ places medication near the nerves in the lower back to "block" pain in a wide region of the body while the person stays awake. Group of answer choices A) Opiate B) Epidural C) General anesthesia D) None of the above
Answer:
B) Epidural
Explanation:
Epidural administration of medication refer to a method of medicine administration in which a medicine is injected into the lower back.
An epidural works on the nerves that carry pain signals. The patient remains awake and is able to feel touch and pressure. He/she may even be walk around when helped.
The epidural makes the patient not to feel pain in a wide region of the body.
What kind of display would be the best way to represent the data below?
Which best explains a way of protecting water for human consumption?
Which group makes up the largest level of a trophic level pyramid?
-Producers
- Carnivores
-Omnivores
-Decomposers
whats a term for ecology that starts with the letter Y
Answer:
yellow rain
Explanation:
source Wikipedia
Answer:
yellow rain
Explanation:Don't let anyone bring you down you got this you matter, and rock!
A forest fire would cause an ecosystem to go through which of the following?
A. tertiary succession
B. secondary succession
C. primary succession
Answer:B, Secondary succession
Explanation:
What is the name of the theory of how the universe was created?
*Please Help*
The answer is The Big Bang Theory
All cells contain two proteins called actin and myosin? True or false
Answer: i think its true
Explanation:
True that all eukaryotic cell i.e. muscle cells. contains actin and myosin protein .
What are actin and myosin protein?Actin filaments are responsible for a variety of cell motions, generally in conjunction with myosin. Myosin is a molecular motor prototype—a protein that transfers chemical energy in the form of ATP into mechanical energy, allowing it to generate force and movement. Muscle contraction is the most noticeable type of such movement, and it has served as a model for studying actin-myosin interactions and myosin motor activity. Actin and myosin interactions, on the other hand, are essential for not just muscle contraction but also a range of non muscle cell motions, including cell division, making them important in cell biology.Actin is a protein found in all eukaryotic cells. Actin filaments move along filaments of another protein called myosin to cause cells to contract. It was initially found in skeletal muscle. Actin filaments are less structured in non muscle cells, and myosin is considerably less prominent.Hence, the given statement is true.
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People spray pesticides on crops to kill insects that eat and destroy the crops. However, these insects are becoming resistant to the pesticides. Explain how this could happen.
When an organism or insect develops a mechanism for the removal of the pesticide compound is known as pesticide resistance.
What is pesticide resistance?The organism or insects develop mechanisms such as the alternation of the binding site of the compound present in the pesticide leading to the development of resistance against the used pesticides. The development of resistance against the pesticide is a slow process, it takes time. The usage of pesticides becomes a failure if organisms develop resistance.
The frequent use of pesticide and insecticides cause changes in the genetic material of the organisms. They help in the development of enzymes and changes in the binding sites. These changes are passed on to the next generation of the organism, which makes the entire population resistant to the particular pesticide and insecticide.
The use of the chemicals should be monitored. Only use when required with rotation.
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what is the definition of gogibidies?
Answer:
a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
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Answer:
#1, #2, and #4 are all true. #3 is false
Explanation:
Which of the following is a necessary reactant for cellular respiration to occur?
Group of answer choices
Water
Carbon dioxide
Nitrogen
Oxygen
Answer: Oxygen
Explanation:
The strength of an acid or a base depends on the degree of ionization in water
Explain how water is used to create electricity.
Answer:
Explanation:Flowing water creates energy that can be captured and turned into electricity.The most common type of hydroelectric power plant uses a dam on a river to store water in a reservoir. Water released from the reservoir flows through a turbine, spinning it, which in turn activates a generator to produce electricity.
Answer:
Water can be used in a lot of ways, let say that you have a big paddle by a raging river next to you to power your home, this paddle can keeping continuously moving to power that home based off how much that river is going. This is one way that water can be used to make electricity. Hope this helps, Merry Christmas, and have a nice day!
Explanation:
I really need help I will mark you guys as brainlist pls help
Thank you
Answer:
Southern Australia
Explanation:
It's the only location that doesn't have an average over 80 degrees
Southern Australia is the yellow
Yellow = 32 to 50 degrees
Hope this helps dude
Answer: A or c
Explanation: because they want a good place where they can put there headquaters
The image above shows an amino acid attached to which type of molecule?