Answer:
a) facilitated diffusion requires the use of a transport protein and energy in the form of ATP
Explanation:
Diffusion is defined as the movement of substances from high to lower concentration across a potential gradient. Facilitated diffusion and simple diffusion are two different types of diffusion.
Simple diffusion does not require energy while facilitated diffusion requires energy in the form of ATP. Facilitated diffusion is a type of passive transport in which transport protein and energy is used in the form of ATP that allow the movement of substances across the cell membrane. There are majorly three types of proteins involved in facilitated diffusions such as channel proteins, carrier proteins, and gated channel proteins.
While in simple diffusion, pumps are used to move the substance across the membrane.
Hence, the correct answer is "a".
Answer:
a) facilitated diffusion requires the use of a transport protein and energy in the form of ATP
Explanation:
In simple diffusion, the molecules can pass only in the direction of concentration gradient. In facilitated diffusion, the molecules can pass both in direction and opposite of the concentration gradient. Simple diffusion permits the passage of only small and nonpolar molecules across the plasma membrane.
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Answer:
A star and something that revolves around it.
Explanation:
It has to have something revolving around it. Otherwise there would be no system, but just a star.
What do proteins nucleic acids and carbohydrates all have in common?
a. they all use peptide bonds to form macromolecules
b. they're all made of chains of amino acids
c. they all contain the instructions for building organisms
d. they're all formed from the same elements
Which process causes earth to loose thermal energy to space?
Answer:
electromagnetic radiation
Answer:
electromagnetic radiation
Explanation:
A segment of RNA has the sequence AUU. What explanation can be made about how this codon came to be?
A
The RNA strand formed from the rearrangement of the bases in a DNA strand.
B
The RNA strand broke off from a DNA strand that had a much longer genetic code.
C
The RNA codon was transcribed from a DNA strand with the sequence TAA.
D
The RNA codon was transcribed from a DNA strand that had the sequence UAA.
Answer:
C - The RNA codon was transcribed from a DNA strand with the sequence TAA.
Explanation:
transcription describes the process by which a strand of mRNA is coded for by the protein RNA polymerase taking RNA bases and matching them in complimentry with the DNA bases
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Each myofibril is made up of arrays of parallel filaments. The thickbands are called _____ and the thin bands are called _____.
Answer:
A band , I band
Explanation:
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what way does the glucose go?
Answer:
The stomach and small intestines absorb the glucose and then release it into the bloodstream. Once in the bloodstream, glucose can be used immediately for energy or stored in our bodies, to be used later
What field of forensics do medical coroners work in?
O Forensic sociology
O Forensic pathology
O Forensic entomology
O Forensic psychiatry
Answer:
THE ANSWER is B
Explanation:
i need to poop
Think Critically. Compare and contrast point source pollution and nonpoint source pollution.
Answer:
Point-source pollution is easy to identify. As the name suggests, it comes from a single place. Nonpoint-source pollution is harder to identify and harder to address. It is pollution that comes from many places, all at once.
Answer:
Point source pollution as any contaminant that enters the environment from an easily identified and confined place. ... Nonpoint-source pollution is the opposite of point-source pollution, with pollutants released in a wide area.
The lab setup shows four test tubes. Tube 1 contains water only. Tube 2 contains a live snail. Tube 3 contains a live green water plant. Tube 4 contains both a live green water plant and a live snail.
In this setup, which tubes contain at least one organism carrying on cellular respiration?
A) Tubes 1 and 2 only.
B) Tubes 2 and 4 only.
C) Tubes 3 and 4 only.
D) Tubes 2, 3, and 4 only.
Answer:
I would assume D
Explanation:
Tube 1 doesn't contain an organism so it can't be that one. Both a snail and a plant are considered an organism, and cellular respiration occurs in almost any organism's cells
Answer: D) tubes 2, 3, and 4, only
Explanation:
I got this question on a test and got it right:)
The biotic and abiotic factors interacting with each
other in a pond form
A) an ecosystem B) a community
C) a population D) a food web
Answer:
Answer is A
Explanation
VERY URGENT:
Units that are combinations of two or more fundamental/base units are called (blank) units
Fill in the blank
Answer:
Derived Units
Explanation:
Answer:
Derived unit
Explanation:
The fundamental unit is Derived unit
A student wants to shorten the ripening time for tomato plants. He predicts that the more water the plants receive,the faster they will ripen. To test this prediction,he grows 20 tomato plants in a garden in full sunlight that has dry soil and 20 tomato plants in a garden with a shadier location where there is greater moisture content in the soil. He then records the time it takes for fruit to develop and ripen on the plants in each garden location. State a serious error the student made with the design of the experiment. State all the constants in the problem.
Answer:
Explanation:
The major problem with this experiment is that he should have had a constant variable (in the form of the surrounding temperature) for his groups. Meaning, he should have had both groups planted in full sunlight and/or a shadier location since his prediction was on water intake by the plant and not the surrounding temperature.
The independent variable here is the type of soil (moist and dry) used while the dependent variable here is the time it took the fruit to develop and ripen on the plants in each garden location.
NOTE:
Independent variable can be described as the variable that is not dependent on any variable in the course of an experiment. It is also changed by the researcher during the course of the experiment.
Dependent variable can be described as the variable that is been tested during the course of the experiment.
if a person has a dominant gene and a recessive gene for a certain trait which will be expressed
Answer:
The dominant gene will be expressed
Explanation:
Recessive genes are only expressed when you have two recessive genes and no dominant.
Which of the following is a term use to describe a mound, hill of ridge of wind-blown sand?
A.peak
B.hill
C.contour
D.dune
When it is high tide on one side of the earth, the opposite side of the earth experiences
A low tide.
B. high tide.
C. flood tide.
D. ebb tide.
E. red tide.
Which of the following is an example of a complex machine?
1. Pulley
2. Wedge
3. Scissors
4. Incline
3- Scissors are an example of a complex machine.
Answer:
A :3
Explanation:
Just did acceleratted ed. Hope this helps!
Why is desertification a problem?
A) New farmland is attained.
b) More people will immigrate to deserted areas.
c) Sand helps machinery run more efficiently.
d) Breathing air contaminated with sand particles can be hazardous.
Answer: The answer is D
Compare and contrast connective tissue and muscular tissue.
Answer:Connective tissue integrates the various parts of the body and provides support and protection to organs. Muscle tissue allows the body to move. ... Different types of tissues form membranes that enclose organs, provide a friction-free interaction between organs, and keep organs together.
Explanation:
Like a brace
I hold everything in place.
Fluid is what I am
Kind of like a jam.
What am I?
Answer:
cytoplasm
Explanation:
the material or protoplasm within a living cell, excluding the nucleus.
Which of the following smaller reservoirs of freshwater are missing from the diagram?
А
Fossil fuels
B
Rocks
С
Ice caps
D
Algae
Answer:
ice caps
Explanation:
What is different about the left and right ventricles of the heart? Why are they different?
Answer:
I forgot the names of the ventricles but one of them goes through the body with oxygen and blood and the other goes inside the heart with blood.
Explanation:
correct me if i am wrong
The __ releases enzymes that digest proteins
Liver
Gallbladder
Liver
Answer:
its the pancreas
Explanation:
What advice should you give to a person exercising on a very hot day
Answer:
uh stop exercising on a hot day? i dunno...
Explanation:
Answer:
Tell them to bring water, not to wear sweaters, hoodies, or jackets, and just make sure that it's not 100 degrees outside and stuff, ig-
Explanation:
Sorry if this doesn't help-
The location marked on the map indicates a biodiversity hotspot. What would scientists expect to find at this location?
-An ecosystem with very few plants and animals living in it.
-An ecosystem with a large variety of plants and animals that is threatened.
-An ecosystem that has experienced a disturbance that it cannot recover from.
-An ecosystem that has experienced a disruption in the flow of matter and energy through it.
Answer:
An ecosystem with a large variety of plants and animals that is threatened.
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Explanation:
The location marked on the map indicates a biodiversity hotspot. The scientists would expect to find An ecosystem with a large variety of plants and animals that is threatened at this location. Hence, the correct option is B.
What is a Biodiversity hotspot?Biodiversity hotspots are regions of the world that contain a high number of endemic species that are found nowhere else in the world and have suffered a high degree of habitat loss.
A hotspot is defined as an area that contains at least 0.5% of the planet's total species diversity and has lost at least 70% of its habitat.
The biodiversity hotspots preservation is important for maintenance of ecological services and functions that sustain life on earth. Hence, the correct option is B.
For more details regarding biodiversity hotspots, visit:
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The question is incomplete, but most probably the complete question is,
The location marked on the map indicates a biodiversity hotspot. What would scientists expect to find at this location?
— An ecosystem with very few plants and animals living in it.
— An ecosystem with a large variety of plants and animals that is threatened.
— An ecosystem that has experienced a disturbance that it cannot recover from.
— An ecosystem that has experienced a disruption in the flow of matter and energy through it.
The map is given below.
I will give you brainliest if you answer this question.
The Mid-Atlantic Rift was formed from a hot spot volcano.
Q: True or false?
Answer:
False
Explanation:
Iceland was formed from volcanic eruptions on the Mid-Atlantic ridge. ... the hot spot that is under Iceland, makes the country highly active in volcanic activities.
Answer:
hi how are you
Explanation:
hi what's up
chemical __are going in on your body all the time
Answer:
Metabolism
Explanation:
Metabolism
Metabolism. Metabolism is the name for the whole set of chemical reactions that the body needs to function. Metabolism comes from the Greek for “change”—because it is a set of changes in which substances are transformed into other substances.
Which two species are most closely related?
Answer:
Two species (B & C) are more closely related to one another than either one is to a third species (A) if, and only if, they share a more recent common ancestor with one another (at Time 2) than they do with the third species (at Time 1).
Explanation:
B and C species are closely related in this phylogenetic tree. A diagram that shows the evolutionary relationships between different species or groups of animals is called a phylogenetic tree.
By showing the branching points where species diverged from a common ancestor, it exemplifies the shared ancestry and evolutionary history of species. The arrangement of species on branches that have a recent common ancestor reflects the degree of relatedness between organisms.
Closely related species tend to cluster together on such branches. Phylogenetic trees are constructed based on similarities and differences in genetic structure, physical characteristics, or other traits observed in different animals. They are important tools in the discipline of evolutionary biology to study patterns of variation and the development of life on Earth.
Learn more about Phylogenetic trees, here:
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Lipids nucleic acids typically do not
Answer:
suck
Explanation:
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Answer:
gravity
Explanation:
the sun has a gravitational pull that keeps all the planets in orbit and prevents them from just floating away.
Answer:
The reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.
Your teacher drinks a glass of water in the front of the classroom and claims, "this water could have been frozen in a glacier on Greenland thousands of
years ago."
Construct a diagram or write a paragraph to support this claim that water could have moved from a glacieron Greenland to a local Baltimore
County Reservoir and into your school's water fountain
Your model must include the following processes:
Transpiration, Evaporation, Precipitation, Condensation and Infiltration
Answer:
technically all water has been recycled so she technically is correct if it is real water and not artificial.
Explanation:
