Answer:
Calcium signaling is the use of calcium ions (Ca2+) to communicate and drive intracellular processes often as a step in signal transduction. Ca2+ is important for cellular signalling, for once it enters the cytosol of the cytoplasm it exerts allosteric regulatory effects on many enzymes and proteins. Ca2+ can act in signal transduction resulting from activation of ion channels or as a second messenger caused by indirect signal transduction pathways such as G protein-coupled receptors.
Explanation:
Wikipedia
What happens to a microscope if placed at the edge
Answer:
If you don't, finger prints will get on it. ... Place an object on the slide and drop some water over it. Then, drop a cover slip over it at a 45 degree angle.
Explanation:
Do you think different sources of carbs (sugars) would affect
the rate of fermentation in yeast? Why or why not?
8. The honeycomb-like appearance of this sandstone is a result of
A. salt weathering.
B. oxidation.
C. hydrolysis.
D. frost wedging.
(FROST WEDGING IS NOT THE RIGHT ANSWER I ALREADY TRIED IT)
The honeycomb-like appearance of this sandstone is a result of frost wedging, hence option D is correct.
What is frost wedging?Wedging Repeated freezing results in a freeze. When the water turns into ice due to the 9 percent expansion, freeze wedging happens. Water-filled fissures are compelled to further divide when it freezes, and other choices, which can be characterized as follows, are erroneous
0xidation is incorrect since the element is in a state where it transforms into a liquid. Hydrolysis is incorrect since it is a reaction in which the bonds of water are broken down into a specific chemical.
Salt weathering is incorrect since it refers to a type of mechanical or physical rock weathering.
Therefore, option D frost wedging is correct.
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do Lungs take up dissolved oxygen in water and exchange it for carbon dioxide.
Answer:
yes they do
Explanation:
My dad is a marine bialogist
Answer
no.
Explanation:
we can only breathe normal oxygen. if we could breathe any other type of oxygen, we could breathe underwater.
but some animal lungs can do this though. but humans can't.
hope this helped. have a good day. :)
Which area of Earth is most similar to the sun’s convection zone?
Answer:
The Mantle
I hope this helps
The mantle is the part which is the most similar to the sun’s convection zone. It is the second layer of Earth.
Which layer from Earth's atmosphere is convective in nature ?It is the troposphere that is convective in nature. Troposphere means the region of mixing.
The mantle is the most similar to sun's convection zone. Sun's convection zone is later dominated by the convection currents that carries energy outward to surface. Mantle is second layer of Earth.
The zone is not that dense enough to just use the radiative transfer of the energy, infact , they uses the thermal convection zones in just other words then it boils. Energy is then carried out through the thermal columns to surface of sun and later creates out areas that are seen as the solar granulation and the super granulation.
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Which of the following nutrients is NOT an element supplied as a soil amendment in fertilizers?
O potassium
O nitrogen
O phosphorus
hydrogen
Answer:
hydrogen
Explanation:
What appears to happen to the Moon as it goes through the phases?
Answer:
What appears to happen to the Moon as it goes through the cycle? The moon appears to change shape or get lighter and darker as it passes through its cyclic monthly phase. Why does the Moon look different at different times of the month? Moonlight is sunlight bouncing off the Moon's Surface.
Explanation:
Hope it helps sorry if I am wrong.
Answer:
The moon appears to change shape or get lighter and darker as it passes through its cyclic monthly phase. Why does the Moon look different at different times of the month? Moonlight is sunlight bouncing off the Moon's Surface.
Explanation:
Which statement is scientifically based?
Ο Ο
O O
Mutations rarely occur.
All mutations are harmful.
Some mutations can be contagious, like infections.
Mutations are not passed from parent to offspring?
Answer:
Mutations rarely occur.
2. What do you call the environmental conditions that help balance the
ecosystem?
A. Limiting reagent
C. Limiting factor
B. Population density
D. Index of diversity
Answer:
B
Explanation:
What is the lowest level of organization
A) nerve cell
B) brain tissue
C) brain(organ)
D) organism
Answer: The lowest level of organization is A.) Nerve Cell aka. Cell because it's just cell.
The lowest level of organization - A) nerve cell
Cellsare the most basic unit of life at the smallest level of organization.cells are joined together to form a structure called is tissue as nerve cells are cells that form together to make brain tissue.Tissues form organ and organ ultimately form an organ system of an organismvarious organ systems form an organism togetherThus, The lowest level of organization - A) nerve cell
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2
Which process can occur in BOTH mitosis and meiosis
A)
fertilization
B)
independent assortment
gene mutation
D
crossing over
Answer: Gene Mutation
Explanation:
what will most likely happen to the squirrel?
Could you give me more background about said squirrel.
Answer:
C) The squirrel will starve if it can't find enough food
Explanation:
If the question is “This squirrel lives in a forest and eats only acorns. What will MOST LIKELY happen to the squirrel if the oak trees in this forest start dying of a disease? A) The squirrel will adapt to less food. B) The squirrel will not be affected at all. C) The squirrel will starve if it can't find enough food. D) The squirrel will eat berries instead of acorns to survive.” then the answer would be C because the squirrels usually on the acorns from trees, and if the trees are gone or there isn’t any food left on the tree the squirrels will starve because they were depending on the acorns for food.
HELP ME, PLEASE;(
describe the significance of mitosis for unicellular algae.
Answer:
Mitosis plays an important part in the life cycle of most living things, though to varying extents. In unicellular organisms such as bacteria, mitosis is a type of asexual reproduction, making identical copies of a single cell. In multicellular organisms, mitosis produces more cells for growth and repair.
Explanation:
May it helps
Which of the following features help plants stay upright? (Select all that apply)
Cell wall
plasma membrane
Endoplasmic reticulum
Vacuole
Answer:
Cell Wall
Explanation:
If you cook a pizza on a metal tray, you place the pizza on the tray at room temperature. This is placed in a hot oven. Once cooked, you remove the tray from the oven. Eventually the tray reaches room temperature again. Describe and explain what happens to the motion of the particles in the metal tray.
Answer: 1. particles vibrate
more
2. individual particles do not
get ( change their temperature).
3. They vibrate less and become
motionless
Explanation:
when the tray is placed in the oven,the particles get heated ( this results in a change in temperature.) as the temperature increases so does their kinetic energy. What this simply implies is that the particles would tend to vibrate more vigorously than before.
When you remove the tray from the oven it’s temperature decreases, so also is it’s kinetic energy. This makes the particles to vibrate slowly and become motionless.
Which is a carbohydrate monomer
A- Glucose
B- Sucrose
C- Glucagon
D- Glycogen
Answer:
D-Glycogen
Explanation:
Took a test
Answer:
A.
Explanation:
Monosaccharides are made of carbon, hydrogen, and oxygen (CHO). They are the monomers for carbohydrates. Any sugar is a monomer.
In order to maintain homeostasis, the human body must be able to get rid of the waste products produced by cellular processes. The kidneys, for example, are responsible for removing waste from the bloodstream by producing urine. Urine produced in the kidneys then travels through the ureter and into bladder, and is finally expelled from the body by the urethra. The kidneys, ureter, bladder, and urethra help the body maintain homeostasis through the process of what?
Answer: process of excretion
Explanation:
Answer:
excretion on study island
Explanation:
Which of the following is NOT part of the nitrogen cycle? A. Conversion of atmospheric nitrogen into usable organic compounds by bacteria.
B.
The process of eroding rocks into sediments.
C.
Conversion of nitrogen from decaying organisms into ammonia.
D.
Conversion of soil nitrates into atmospheric nitrogen.
What animals do not have a gallbladder? What type of digestive system do they have?
Answer:
Horses, Deers, Rats all don't have gallbladers
Different species of animals are better able to digest certain types of feeds than others. This difference occurs because of the various types of digestive systems found in animals.
If a polypeptide chain is 30 amino acids, how many nucleotides will make up the coding mRNA strand?
93
30
33
90
96
Answer:
3 nucleotide require to produce one amino acid.As 30 amino acid , it requires 90 nucleotides including start codon but a polypeptide chain have a stop codon at last therefore 93 nucleotide will make up the coding mRNA strand.
The stop codon may be UAA ,UAG ,UGA they encode no amino acid.
One amino acid requires 3 nucleotides. The coding mRNA strand will have 93 nucleotides since a polypeptide chain has a stop codon at the end of 30 amino acids. Therefore, option (A) is correct.
What are codons?A segment of three adjacent nucleotides within a DNA or RNA molecule that, when read, denotes the presence of a particular amino acid. There are particular codons that indicate the beginning or end of the translation process.
3 nucleotide require to generate one amino acid. As 30 amino acids, it requires 90 nucleotides including a start codon, but a polypeptide chain also has a stop codon at the end; as a result, the coding mRNA strand will have 93 nucleotides.
The stop codon could be UAA, UAG, or UGA; however, none of these codons encode an amino acid.
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Which is nutrient that leads to
eutrophication?
A) phosphorous
B) carbon dioxide
C) oxygen
Answer:
I think a
Explanation:
Answer:
A.) Phosphorus
Explanation:
How do cells with the same set of DNA become a wide variety of specialized cells?
Answer:
Cellular differentiation
Explanation:
I think this is it. In cellular differentiation a cell changes from one cell to another so this might have something to do with this
How do vaccinations work to provide immunity? and What body system regulates blood glucose levels? (For a Biology exam)
Thanks :)
Answer:
it trains the body immunity towards certain diseases
Explanation:
first of all we humans have two types of wbc cells phagocytes & lymphocytes. phagocytes produces pseudopodia which is like cytoplasm that traps or catches bacteria or viruses. lymphocytes produces chemical antibodies which destroy the viruses or bacteria by attaching to the virus and burst it out. Now when u get vaccinated u train those wbc cells for future viruses and hepl them to make antibodies to defend the body.
The blood glucose gets regulated by production of insulin in pancreas to maintain proper amount of glucose in the body
What do dermal tissues in plants do
Answer:
The dermal tissue system protects the soft tissues of plants and controls interactions with the plants' surroundings. The epidermis is a dermal tissue that is usually a single layer of cells covering the younger parts of a plant. It secretes a waxy layer called the cuticle that inhibits water loss.
Primary dermal tissues, called epidermis, make up the outer layer of all plant organs (e.g., stems, roots, leaves, flowers). They help deter excess water loss and invasion by insects and microorganisms.
(hope this helps ^^)
PLZ HELP WILL GIVE BRAINLIEST
Answer:
A, B, and D are correct
Explanation:
I took biology
what are the stratigraphic principles?
Answer:
There are 6 of these...
Law of Superposition
The geologic principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.
Principle of Original Horizontality
The geologic principle that states that sediments are deposited as essentially horizontal beds.
Principle of Lateral Continuity
The geologic principle that states that strata originally extended in all directions until it thinned out to zero or ended against the edges of another structure or deposit.
Principle of Cross-cutting Discontinuities
The geologic principle that states that any discontinuity that cuts across a stratum must have formed after that stratum.
Law of Inclusions
The geologic principle that states that any piece of rock that has become included in another rock or body of sediment must be older than the rock or sediment into which it has been incorporated.
Law of Faunal Succession
The geologic principle that states that sedimentary rocks that contain fossils succeed each other in specific and reliable order.
Help me please I don’t understand I rlly need the answer
Answer:
True
Explanation:
I read it at biology class
testing ur knowledge on cats: when cats wag their tales what does that mean
A. They are hungry
B. They are happy
C. They are annoyed
D. They are thirsty
Answer:
When cats wag their tales it means that they are most likely annoyed.
Flow of Endosymbiotic Theory
Answer:
The Endosymbiotic theory is the theory that “Cells evolved from previous ancient cells.”
How was HMS Beagle’s voyage significant to science?
Answer:
The HMS Beagle was the boat that Darwin took when he sailed to the Galapagos Islands. It was on this journey that Darwin observed that the different finches on the different islands where all related, they had just evolved separately. This led him to come up with his theories of evolution and natural selection.
Explanation:
