grphene is a form of ?
Answer:
Graphene is a two-dimensional carbon allotrope. It is composed of carbon atoms positioned in a hexagonal design, which can be said to resemble a chicken wire. A single layer of carbon atoms arranged in such a honeycomb structure forms a single graphene sheet.
Explanation:
A field biologist observed and recorded the ground squirrel population in a forest ecosystem over a 40 year period. During which
years is the squirrel's ecosystem most stable?
A)
years 1-9
B)
years 10-30
years 31-37
D)
years 38-42
Years 10-30 covers a longer time period and thus might provide a better representation of the ecosystem's stability over time. The correct option is B.
What is ecosystem?An ecosystem is made up of all the organisms and the physical environment in which they live. These biotic and abiotic elements are linked by nutrient cycles and energy flows.
If the ground squirrel population is assumed to be relatively stable over time, the years with the least amount of change or variation in population size would indicate the most stable ecosystem.
Forest, desert, rain forest, grassland, tundra, savanna, and mountain ecosystems are the most common types of ecosystems.
Healthy ecosystems clean our water, purify our air, keep our soil in good condition, regulate the climate, recycle nutrients, and provide us with food.
They supply raw materials and resources for pharmaceuticals and other uses.
Thus, the correct option is B.
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helpp pleasee thank u soo much !! ♡♡♡
Answer:
b?
Explanation:
Question 2: Symbiosis Symbiosis is another type of two-species interaction. It literally means living together, and refers to pairs of species that live in close physical proximity with the other species for a major part of their life cycles. Some examples of symbiosis: You and the microorganisms that live in your intestines; bark beetles burrowing in pine tree trunks; Monarch butterfly caterpillars and milkweed plants; and algae living in coral tissues. Can you think of any symbiotic interactions that are commensal or parasitic
Answer:
Commensal= mites and larger insecta who fly. Hermit crabs and shells of other organisms. Remora fish and whales. tree frogs and plants.
Parasitic= tick and dogs, tapeworm in humans, Barnacles and whales
Explanation:
Commensalism is when one species benefits and the other is neither helped or harmed. Parasitism is when one benefits and the other is harmed.
What is the function of the respiratory system?
o elimination of wastes
O transport of blood
O nutritional support
o transfer of gases
***ANSWER ON EDGE: TRANSFER GASES***
which drscribes the most direct function of the nostrils?
*** ANSWER ON EDGE: permits air to enter the body ***
Answer: D. transfer of gases and the second one is also D. permits air to enter the body
Explanation:
Right answer on edg
Answer:
1. D
2. D
Explanation:
both D haha 100%
In meiosis, you end up with half the number of chromosomes and that makes sense because you get 23 from your dad and 23 from you mom to form YOU.
Answer:
Yes
Explanation:
Mendel's law of segregation states that every individual possesses two alleles, and only one allele from each parent is passed on to the offspring. That means that you get 23 chromosomes from each of your parents.
Which of the following is the focus of the NOAA?
limiting fishing
preserving fish species
policing fishing methods
maintaining water quality
Answer:
preserving fish species
Explanation:
"NOAA" stands for "National Oceanic and Atmospheric Administration." It focuses on preserving the marine environment and shares information about the climate, weather and so on. This means that its focus is to "preserve the fish species," and in order to do this, it created policies like the "Annual Catch Limits." This will prevent overfishing and ensure the world of a sustainable fish supply. Besides this, they also try to improve fish habitats and ensure the water quality in order for fishes to thrive.
Which of these best compares the conditions at Location X and Location Y?
A. It is day at Location X and night at Location Y.
B. It is winter at Location X and summer at Location Y.
C. There are more hours of daylight at Location X than at Location Y.
D. The moon is brighter when viewed from Location X than when viewed from Location Y.
Answer:
B. It is winter at Location X and summer at Location Y.
Explanation:
(90 POINTS) The three points of cell theory correspond to which signs of life?
point 1. All living things
are composed
of cells.
point 2. Cells are the
fundamental
units of life.
point 3. All cells come
from other
cells.
A. Reproduction and one or more cells
B. Response to the environment and information system
C. One or more cells and information system
D. Information system and complex chemical activities
Answer:
A) I think
Explanation:
Answer:
b
Explanation:
Which energy source would provide the cheapest electricity for a factory?
Answer:
Gas Generators
Explanation:
A plane travels 2500 miles in 180 seconds. What was its speed?
Answer:
speed = 22352 m/s
Explanation:
Given data:
Distance travelled = 2500 miles (2500 mile×1609 m /1 mile = 4023360 m)
Time taken = 180 sec
Speed of plane = ?
Solution:
Formula:
s = d/t
s = speed
d = distance
t = time
by putting values,
s = 4023360 m / 180 sec
s = 22352 m/s
The elements least likely to form bonds are found in which group?
Answer:
Noble gases
Explanation:
Noble steam, any of the seven chemical elements that make up the periodic table in group 18.
Within normal conditions, noble gases are colorless, odorless, tasteless, and nonflammable gases. The noble gases are grouped according to their boiling point in the periodic table. Noble gases, from incandescent lamps to excimer lasers, are commonly used in distinct areas.
Answer:
its B: 16
Explanation:
How do television stations broadcast live video across the entire world simultaneously? Please me help!!!
Answer:
Television broadcasting
The transmission of visual images of moving an stationary objects, generally with accompanying sound, in the form of electromagnetic waves that when received can be reconverted into visual images.
Very high frequency (VHF)
A band of radio frequencies falling between 30 and 300 MHz; VHF signals are widely employed for television and radio transmissions. In the United States and Canada, television stations that broadcast on channels 2 through 13 use VHF frequencies, as do FM radio stations. Many amateur radio operators also transmit on frequencies within the VHF band.
Telecasting on television electromagnetic transfer of moving or still objects' visual pictures, usually accompanied by sound, which, when received, can be transformed back into visual images, they broadcast on VHF and UHF frequency channels.
What is VHF in television broadcasting?Very high frequency (VHF), They broadcast on VHF and UHF frequency channels. Due to the fact that radio waves at these frequencies travel along lines of sight, their reception range is constrained by the horizon to between 40 and 60 miles, depending on the height of the transmitter station.
VHF signals, a range of radio frequencies between 30 and 300 MHz, are often used for radio and television transmissions. VHF frequencies are used by FM radio stations as well as television stations that broadcast on channels 2 through 13 in the United States and Canada.
Therefore, telecasting on television electromagnetic transfer of moving or still objects' visual picturesThey broadcast on VHF and UHF frequency channels.
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A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons does it have? (3 points)
13
5
9
4
Please help :c
Waste , water , and enzymes are stored at which structure?
Answer: I believe the answer is vacuole.
Explanation: Vacuoles are fluid-filled organelles used mainly as storage compartments. Depending on the cell type, they can hold things like enzymes, waste, food, and water!
Hope this helps! ^^
I saw that rock from the mantle is added to the edges of both plates at (convergent / divergent) plate boundaries, where the plates move (toward / away from) each other.
Answer:
I saw that rock from the mantle is added to the edges of both plates at CONVERGENT plate boundaries, where the plates move AWAY FROM each other.
Explanation:
:)
During cellular respiration, is energy absorbed or released? Explain
Answer:Dont worry im here to help!
Yes energy is released
Explanation:
"Energy released during the reaction is captured by the energy-carrying molecule ATP (adenosine triphosphate)."
Next, several biochemical tests are run to further identify the microorganism. Lactose fermentation is run for 24 hours at 37⁰C in lactose broth containing a Durham tube and phenol red indicator. The result shows a red broth with no air bubbles in the Durham tube.
What do these results mean in terms of this microorganism’s ability to ferment lactose?
Answer:
The organism is not a lactose fermenter.
Explanation:
The result means that the microorganism was not able to ferment lactose.
The lactose fermentation test is conducted to test the ability of a bacterium to utilize the carbohydrate, lactose, as its carbon source. A bacterium that is positive for this test would be able to ferment lactose to produce lactic acid.
In order to conduct the test, a pure culture of the microorganism is inoculated in phenol red lactose brought and incubated at the optimum temperature for about 24 hours. If the organism is able to ferment lactose, lactic acid and carbon dioxide gas would be produced. This means that the phenol red indicator would color to yellow from red and the Durham tube would contain air bubbles.
In this case, there was no change in color of the indicator nor production of gas in the Durham tube. Hence, the microorganism is concluded to be a non-lactose fermenting one.
A virus's specificity to infect only certain tissues is known as ___.
tissue tropism
specialized transduction
lysogeny
vector specificity
Answer:
100% sure it's tissue tropism.
Explanation:
Some aquatic organisms that live in cold environments similar to that of the crabs have multiple forms of certain enzymes that catalyze reactions at various temperatures. Explain how having multiple forms of the enzymes would contribute to the fitness of these organisms. Both adult and juvenile red king crabs can be found in ocean water of a different salinity and osmolarity than their body tissues are. Explain why it is important to the crabs that they can regulate the osmolarity of their tissues.
Answer:
To maintain homeostasis.
Explanation:
It is important for the crabs that they can regulate the Osmoregulation of their tissues because they needs to maintain the homeostasis of the organism. This osmoregulation also maintains the concentration of water content and solutes in the body of crabs. So we can say that for maintaining balance in the body osmoregulation is very important for crab's tissues .
Which is NOT a process that introduces genetic variability in meiosis?
A. Cytokinesis
B. Crossing over
c. Law of segregation
D. Independent assortment
What is true of sand dunes? A) they are built by waves B) they are made by rivers cutting through land C) they are built by water carrying sediment away D) they are built by deposition of sand by wing.
Answer:
its d I'm pretty sure.....
Answer:
it is D i just did it
Explanation:
Which example describes an abiotic factor interacting with a biotic factor?
Small fish use underwater plants as homes.
More light allows underwater plants to grow.
Small fish feed on phytoplankton.
Lower water temperatures increase oxygen concentration in the water.
Answer: the correct answer is
B) More light allows underwater plants to grow.
Explanation: I took the quiz!
Question 20 of 25
What kind of substance is made up of neutral atoms or molecules and
changes its shape and volume when placed in a new container?
A. Solid
B. Gas
C. Plasma
D. Liquid
Answer:gas
Explanation:
which 2 processes are directly responsible for the growth and development of a butterfly?
Answer:
development, growth and reproduction that a living thing goes through.
Explanation:
A life cycle refers to the stages of development, growth and reproduction that a living thing goes through. Every butterfly goes through four stages of development: (1) egg, (2) larva, (3) pupa and (4) adult. This process of development is called metamorphosis.
The two processes that are directly responsible for the growth and development of a butterfly are metamorphosis and molting.
What is Metamorphosis process?Metamorphosis is the process by which a butterfly develops from an egg to a larva (caterpillar), then to a pupa (chrysalis), and finally to an adult butterfly. During this process, the butterfly undergoes significant changes in its body structure, behavior, and diet.
Molting is the shedding of the outer layer of skin (cuticle) that allows the butterfly to grow and develop. The caterpillar undergoes several molts as it grows, shedding its skin and developing a new, larger one.
Each molt allows the caterpillar to increase in size and change in appearance as it progresses through its developmental stages.
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berf erf erf crefinging
Answer:
what the hell
Explanation:
what the 就是啥好北京市上班
What goes into a cell during Cellular respiration? Give me a simple answer, I'm in 6th grade!
Answer:
Oxygen and glucose.
Explanation:
Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage.
Additionally, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.
Basically, oxygen goes into the body of a living organism such as plants, humans and animals when they breathe while glucose is absorbed by the body when they eat.
Hence, oxygen and glucose goes into a cell during Cellular respiration and as such are known as the reactants.
How do extrusive igneous rocks differ from intrusive igneous rocks?
Answer:
The difference between intrusive and extrusive igneous is that, intrusive rock is one that forms when magma cools within Earth. Extrusive igneous rock is one that, forms when lava cools on Earths surface.
My main organs are the heart and blood vessels.
What am I?
Answer:
cardiovascular system
Explanation:
What percerntage of light hits Earth's surface directily?
O 3 percent
O5 percent
O 31 percent
O 47 percent
the anterior is 31 percent
