Answer:
Luminosity is an intrinsic(natural) measurable property of a star independent of distance. The concept of magnitude, on the other hand, incorporates distance. The apparent magnitude is a measure of the diminishing(decrease) flux of light as a result of distance according to the inverse-square law.
Which is a correct statement?
Select one:
a. As porosity increases, permeability stays the same
b. As porosity increases, so does permeability
c. As porosity increases, permeability decreases
d. Porosity and permeability are unrelated
help pls!!!
As porosity increases, permeability decreases It increases as particle length increases. via definition, permeability is a measure with which fluids will go with the flow though a porous rock, soil or sediment. a material that has high porosity does not have to have high permeability.
Smaller particles have a low permeability. this is due to the fact there's less space among debris, which reasons a lower porosity, which makes water travel slower through the ground. Smaller debris have a higher capillarity.
Porosity is the amount of pore area that is between particles in soil or rocks. Permeability takes this pore space and connects the voids collectively so that water can pass thru. Porosity is extra associated with garage of water, whilst permeability is extra related to groundwater motion and flow.
To calculate the permeability of a porous material, use Darcy's law equation: Multiply together the fluid discharge fee, dynamic viscosity, and distance traveled. Divide the end result from step one with the aid of the move-sectional place of the fabric elevated with the aid of the strain difference on either aspect of the material.
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The field of Astronomy is not related to technology
O True
False
Answer:
false
i hope this helps and goodluck!
Example of reproduction
Answer:
a deer giving birth to a baby deer
find all the hidden words related to earthquake in the grid below
Match each mineral property to the correct description.
crystal system
the ability to attract certain metals
cleavage
the number and angle of crystal faces
magnetism
the ability of a mineral to break along flat
surfaces
fracture
an irregular way of breaking apart
fluorescence
the ability to produce a visible glow
Answer: here you go hope this helps
Explanation:
Matching each mineral property to the correct description is:
crystal systemthe number and angle of crystal faces
cleavagethe ability of a mineral to break along flat surfaces
magnetismthe ability to attract certain metals
fracturean irregular way of breaking apart
fluorescencethe ability to produce a visible glow
A mineral property are those things that make up or characterize a mineral. For example, things like crystal forms, luster, color, etc are all ways to recognize a mineral.Read more here:
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Suggest why a cell within the trunk of a tree cannot carry out photosynthesis.
Answer:
The water needed for photosynthesis is absorbed through the roots and transported through tubes to the leaf. Note that root cells do not contain chloroplasts, as they are normally in the dark and cannot carry out photosynthesis.
Explanation:
The trunk of a tree consists of dead tissues and serves only to support the weight of the tree crown. This portion of the tree does not contain chloroplast, hence photosynthesis is not carried.
What is Photosynthesis?Photosynthesis may be defined as a process through which green plants and some photosynthetic algae synthesize their food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
The part of the trunk region of the tree does not have chloroplast, chlorophyll pigments, and other required machinery which is significantly utilized by the leaves of the tree in order to perform photosynthesis. Due to this, the trunk part of the trees is not capable to carry out the same process.
Therefore, the most prominent reason why a cell within the trunk of a tree cannot carry out photosynthesis is well described above.
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Collisions between molecules cause diffusion.
True or false
If false then what does cause diffusion
Answer:
True
Explanation:
The collisions between the particles cause them to spread out and move away from each other.
Are mouse cells eukaryotic or prokaryotic?
Answer:
Eukaryotic
Explanation:
A location's weather depends on...
Question 1 options:
A. temperature
B. clouds
C. precipitation
D. all of the above
Answer:
D
Explanation:
its obvious
Answer:
D all of the above
Explanation:
The temperature is the heat or cold in the weather.
The clouds can change the temperature in the weather.
Precipitation is what most people think of when you say weather.
HELPPPP MAN IDKK- IM DOINGTHISLASTMINUTE
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.
Cells are the basic unit of life. Some cells are single-celled organisms and others
are specialized to do a specific function for an organism. Even though cells are
structurally different depending on the organism, all cells have this in common?
A. The presence of nucleic acid
B. The absence of a nuclear envelope
C. The presence of a cell wall
D. The absence of ribosomes
Answer:
A. The presence of nucleic acid
Explanation:
What kind of joint is pictured in the diagram shown? Need Answer ASAP
Answer:
b A moveable moveable joint joint that that allows allows back back and and forth forth movementmovement
Explanation:
A moveable joint that allows back and forth movement. Therefore, the correct option is B.
What is moveable joint?A synovial joint, commonly referred to as a movable joint, allows for a variety of motion between bones. Limbs and other areas of the body that require movement have movable joints.
These joints have a synovial membrane that secretes synovial fluid, and they are enclosed in a capsule of connective tissue. This fluid helps lubricate the joint and lower friction as the bones move in closer proximity to each other.
Ball-and-socket joints, pivot joints, saddle joints and gliding joints are some examples of movable joints. Different types and ranges of motion are possible with each type of joint.
Therefore, the correct option is B.
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What did Oparin call the mixture of carbon-based molecules that would eventually from life ?
Answer:
Earth's primordial soup
Explanation:
Alexander Oparin was a Soviet biochemist who proposed theories for the origin of life through a book he called "The Origin of Life". He claimed that life on earth came about as a result of a gradual chemical evolution which is a mixture of carbon-based molecules that he called Earth's primordial soup (or sometimes called "organic soup").
What percent of energy is transferred from the sun to the level indicated? (3 points)
A. 50 percent
B. 100 percent
C. 90 percent
D. 10 percent
Answer:
10 Percent :)
science is so confusing to me!
Select all answers that are correct.
If people have never observed matter (mass) to be created or destroyed, then using inductive reasoning, it would be logical to conclude that:
the known laws of science cannot account for the origin of mass
the amount (quantity) of mass in the universe has never changed
the mass of the universe must have created itself
Answer:
second one.
Explanation:
not sure but it's the only answer that goes with the other laws
Consider the plant cells in the image below. What is a function of the cell structure that is labeled x?
Answer:
c) It provides support to the plant
Answer:c
Explanation:
Rashad hears a loud noise outside. When the sound reaches his ears and travels to the brain to be recognized, which of the following is true about how this happens A) information will only travel to the frontal lobe B) information will first travel to the thamalus and then to wernickes area C) information will travel only to the temporal lobe D) information will first travel to the thalamus and then to the temporal lobe
Answer:
D. information will first travel to the thalamus and then to the temporal lobe
Explanation:
How many millimeters are equal to 3.46 meters
Answer:
3460
Explanation:
Answer:
3460
Explanation:
Which theory suggests all living things are made up of a cell or cells? cell theory organismal theory
Answer:
Cell theory
Explanation:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
In the outer layer of the sun, energy is transported outward by the rising of hot plasma and sinking of cooler plasma. This transfer is known as
Answer: Convection.
Explanation:
We have 3 types of heat transmission.
Radiation: Heat is transported as electromagnetic waves, this is not the case shown here.
Conduction: When we have two objects with different temperatures and we put them in contact, the system will want to go to equilibrium (both objects have the same temperature) so the hot object will give heat to the cooler object. We usually see this with solid objects.
Convection: It is the heat transfer due to the bulk movement of the molecules, so this need a material medium (it can not take place in solids, because the position of the molecules is fixed in the solids).
Then the rising of hot plasma and sinking of cooler plasma is convection.
A rabbit population is near the carrying capacity of its ecosystem. If the population density of rabbits in an area were to increase, what direct effect would it most likely have?
It could most likely lead to less food for herbivores to eat, predators could start flourishing off of the rabbits, and the food chain would be out of place.
Dependence and Addiction are the
same thing?
a. True
b. False
Answer:
b
Explanation:
one is a necessity, the other is a struggle
Which of the following is true for a water molecule
Answer:
The oxygen atoms have electrons more often than hydrogen.
Explanation:
function of cell membrane in muscle cells
Answer: The sarcolemma generally maintains the same function in muscle cells as the plasma membrane does in other eukaryote cells. It acts as a barrier between the extracellular and intracellular compartments, defining the individual muscle fiber from its surroundings
Explanation:
please help me, 50 points
What type of bond are the arrows pointing to below in the picture
what are thylakoids? I will give BRAINLIEST!!
Answer:
each of a number of flattened sacs inside a chloroplast, bounded by pigmented membranes on which the light reactions of photosynthesis take place, and arranged in stacks or grana.
Thylakoids are membrane-bound compartments inside chloroplasts and cyanobacteria. They are the site of the light-dependent reactions of photosynthesis. Thylakoids consist of a thylakoid membrane surrounding a thylakoid lumen. Chloroplast thylakoids frequently form stacks of disks referred to as grana.
Explanation:
Answer:
They are membrane-bound compartments inside chloroplasts (the food producers of the cell) and cyanobacteria (group of photosynthetic bacteria).
Which organisms synthesize carbohydrates, and in which cell organelle(s) does this synthesis occur?
a. animals in mitochondria
b. plants in mitochondria
c. plants in chloroplasts
d. animals and plants in mitochondria
e. animals and plants at ribosomes
Answer:
C
Explanation:
Green Plants are the main producers of starch as carbohydrate.In order to carry out this special organelle Chloroplast are specially adapted for this purpose,
Green plant are made up of Chlorophyll which are the green pigments that for trapping sunlight for the synthesis of starch to occur.
Photosynthesis is the process of synthesis of the starch.It involves the reaction of C02 with water in the presence of sunlight and enzymes to give oxygen as the byproduct, and Starch( carbohydrate) as the main product.
This process occur in two pathways the light dependent pathways and the light independent pathways,
Green plant and some organisms phytoplankons,algea are capable of producing starch through photosynthesis because of the green pigment they possess.Therefore they are said to be Autothrophic.
What do eukaryotic cells have that prokaryotic cells do not?
Answer:
a nucleus
Explanation:
hey! the main difference between eukaryotic and prokaryotic cells is that eukaryotes have a nucleus, while prokaryotes do not.
The _____ is a process at the top of the femur: A. calcaneus B. lateral greater trochanter C. tarsus D. fibula
Answer:
PART C I THINK SO
Explanation:
why did samy say the f word i told him so many times and still says it