Answer:
maybe if you payed attention in class, you would know the answer.
Explanation:
1. What has to be added to a substance to cause a phase change?
Answer:
To cause a phase change, you either add heat energy to a substance to cause it to evaporate, melt, or sublimate, or you subtract heat energy, or take it away, to make the substance freeze or condense. Hope it helps!
Explanation:
2
If an organism has 15 chromosomes in a single sperm cell, how many
chromosomes would reside in its somatic cells?
O 15
O 30
0 7.5
45
Answer:
i just think but not sure
the answer is 30.....
I think but not sure
clarify and tell whether I am correct or not
Planet X is a terrestrial planet in our solar system. It has 21% oxygen in its atmosphere. Humans can walk on this planet without the aid of a space suit. Based on the description, planet X is____ .
a.Earth
b.Mars.
c.Mercury
d.Venus
Answer: the answer is actually earth
Explanation: A
Laws have been enacted to regulate cigarette labeling and advertising. What is this an example of?
an impact of changing scientific knowledge on society
the interrelationship of science and technology
an influence of society on scientific progress
the changing nature of scientific knowledge
Answer: B
Explanation: Society is basically a community of people and the way they live. The study on smoking is definitely science. So it would be b.
Answer:
A
Explanation:
I'm pretty sure it's A :)
Which describes bedrock?
o consists of solid rock
o lies directly above the soil layer
o does not contain weathered rock
o forms from decomposed material
Answer:
consists of solid rock
Explanation:
bedrock contains only solid rock unless you are talking about a different type of bedrock this bed is called saprolite. saprolite contains severly weathered rock and lies above the solid layer of bedrock
Answer:
a
Explanation:
define the following term
Answer:
What is the following term?
Explanation:
What you are asking is vague, you should add a term to define.
When sleeping overnight, a person doesn't eat for many hours and blood sugar decreases. How does negative feedback work to affect this physiological value in a healthy person?
A. Insulin is released to cause cells to release glucose into the bloodstream.
B. Glucagon is released to cause cells to absorb glucose from the bloodstream.
C. Glucagon is released to cause cells to release glucose into the bloodstream.
D. Insulin is released to cause cells to absorb glucose from the bloodstream.
Answer:
It is c
Explanation:
C is the answer ur looking for my guy
How do you know that vinegar was diffused into the cubes
Which primate group is classified as hominins
the group consists of modern humans, extinct human species, and all our immediate ancestors.
A diagram that is used to show the loss of energy as you go forward in a food chai
a.) food web
b.) energy pyramid
c.) concept map
d.) trophic levels
Answer:
tropical levels ........
Name a structural difference between triglycerides and phospholipids
Answer:
Phosphate group is the structural difference between triglycerides and phospholipids. A triglyceride contains three fatty acids attached to the glycerol backbone whereas a phospholipid has two fatty acids and a phosphate group attached to the glycerol.
Explanation:
Which of these is a condition where the endometrial lining that is normally supposed to only be inside the uterus, ends up outside the uterus (for instance, in the pelvic cavity) and causes extreme pain during menstruation? This condition affects up to 1 in 4 women.
Answer:
Endometriosis is called the pathology
Explanation:
Endometriosis is a pathology where fibroblasts or connective tissue cells proliferate outside the fallopian tubes in the abdomen, close to the intestine, and adjacent to the ovaries, by proliferating and reducing the space between the organs, the pressure of the terminals increases nervous and during menstruation it hurts.
They are benign proliferative cell foci.
Why were most test tubes incubated at 37 ⁰C?
Answer:
Optimal Growth Conditions
Explanation:
Different bacteria like to grow at different temperatures. By changing the temperature. Organisms that grow best at human body temperature, which is approximately 37 degrees Celsius (98.6 degrees Fahrenheit), are called mesophiles.
Hope this helps.
HELP HELP HELP ASAP ILL GIVE 100 points
Answer:
What's the question you need help with?? I will try my best to help. I'm not taking free points btw. I'm just wondering on what your question is
If correctly answered I will give out Brainliest.
Answer: D
Explanation: A = Thrust
B=Lift
C=Drag
D=Gravity
all of the following statements support the cell theory except-
Answer:
L
Explanation:
I NEED SOMEONES HELP ON THIS QUESTION THE PICTURE IS ABOVE
Answer:
chemical that's the answer!
Answer:
c) Chemical
Explanation:
The poison dart frog triggers the production of a chemically dangerous alkaline Batrachotoxin, when it feels a threat to itself or its habitat.
The skunk similarly sprays chemical containing aerosols, that have an offensive odour to defend itself.
whats the definition of photosynthesis?
Answer:
the process by which green plants and some other organisms use sunlight to synthesize get nutrients from carbon dioxide and water.
Explanation:
hopes this helped :)
Photosynthesis is defined as the processes that bring about the manufacturing of food by green plants.
Food is complex energy-rich organic matter which living organisms feed on to obtain nutrients, substances necessary for life. Green plants which are known as autotrophs has the ability to produce their own food through the process of photosynthesis.
The main features of photosynthesis include:
It takes place in the chloroplasts of plants, in the presence of sunlight.The energy needed for the process is gotten from sunlight which is absorbed by chlorophyll found in the chloroplasts.The raw materials used are low-energy containing inorganic compounds, example: carbon dioxide and water.The final products are high-energy containing sugars. oxygen is given off as a waste product.Learn more here:
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Please help. This is due today :(
Label the following.. Word bank is below
An example of a succulent is a _
Answer:
Agavoideae
Explanation:
The passive movement of particles from a region of higher concentration to a
region of lower concentration is known as...
A. Diffusion
B. Active Transport
C. Osmosis
D. Selective Permeability
Answer:
Answer is A. Diffusion
Explanation:
Because diffusion is a passive process in which a substance moves from a higher concentration to a lower concentration until the concentration becomes equal
The passive movement of particles from a region of higher concentration to a region of lower concentration is known as diffusion. Thus, the correct option is A.
What is Diffusion?Diffusion may be defined as the passive movement of particles from a region of higher concentration to a region of lower concentration.
Active transport requires energy for the movement of particles. Selective permeability may be defined as the ability to differentiate the movements of different types of particles in and out of the membrane.
Therefore, the correct option for this question is A.
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I have a question regarding construction building code ? can you help?
Which of the following is not a way in which carbon gases are introduced into the atmosphere? a forest fires b. respiration C. photosynthesis d. burning of fossil fuels Please select the best answer from the choices provided O A ОВ oc
Answer:
C. Photosynthesis
Answer:
its C
Explanation:
Which is not a unique property of water
Answer:
A
Explanation:
All of the other options are specific to water, but quite a few liquids cool off a lot faster than water.
water cools very rapidly is not a unique property of water. Thus option A is correct.
what are the properties of water molecule ?It has no taste, odor, or transparency, where the nucleus of the oxygen atom attracts electrons strongly than the nuclei of the hydrogen atoms.
In water molecule oxygen is more electro negative and electron-greedy than hydrogen, results in the development of a partial negative charge on the oxygen of the water and a partial positive charge on the hydrogen end.
Water shows strong cohesive property where the attraction of molecules for other molecules of the same kind is referred to as cohesion.
Surface tension is defined as the tendency of the surface to resist rupture when they are subjected to stress due to cohesive forces.
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Your question was incomplete, so the complete question is
Which is not a unique property of water
A) water cools very rapidly
B) frozen water floats on liquid water
C) water molecules stick to each other through hydrogen bonds
D) water covered most of the earths surface and retains a large amount of heat
Why do planets close to the sun have thin atmospheres and the planets far away from the sun have thick atmospheres. Use what you know about the nebular theory.
Answer:
There are two primary factors: size and distance from the Sun. Gravity helps planets and moons to hold on to their atmospheres, so small planets/moons such as Mars and the Moon have thin atmospheres. The reason why the outer planets are larger is probably down to two major factors. The first is simply the amount of material available which may be accreted to a planet. Clearly, the further away from the Sun, the longer the orbit (twice as far means an orbit twice the physical length).
Explanation:
Which step in the digestive process represents a chemical change in food?
Answer:
digestion
Explanation:
Humans deplete the most resources when
Answer:
Resource depletion is the consumption of a resource faster than it can be replenished. Natural resources are commonly divided between renewable resources and non-renewable resources (see also mineral resource classification). Use of either of these forms of resources beyond their rate of replacement is considered to be resource depletion. The value of a resource is a direct result of its availability in nature and the cost of extracting the resource, the more a resource is depleted the more the value of the resource increases. There are several types of resource depletion, the most known being: Aquifer depletion, deforestation, mining for fossil fuels and minerals, pollution or contamination of resources, slash-and-burn agricultural practices, Soil erosion, and overconsumption, excessive or unnecessary use of resources.
Resource depletion is most commonly used in reference to farming, fishing, mining, water usage, and consumption of fossil fuels. Depletion of wildlife populations is called defaunation.
Explanation:
A cell has chloroplasts, numerous ribosomes, an endoplasmic reticulum, and a cell wall. What type of cell is this?
Answer:
The cell with chloroplasts, abundant ribosomes, plus an endoplasmic reticulum, and a cell wall is of the plant cell type.
Explanation:
Plant cells are eukaryotic cells found in all plants, with specific characteristics given their ability to be autotrophic and use solar energy to synthesize their nutrients. The presence of many ribosomes and a developed endoplasmic reticulum is due to their high capacity for plant protein synthesis.
One characteristic that differentiates plant and animal cells is the presence of a cell wall, which surrounds the cell membrane, and chloroplasts. Chloroplasts are responsible for making the process of photosynthesis possible.
Plz help me with this question!!!!!!
Solution : It is a mixture of solvent (Major component mostly liquid) and solute (Minor component).
It is asking from a solution where water and solute are moving whether outise or inside.
_____________________________________As Per Hint Given:Solute ; Moves from higher concentration to the lower concentration by the process of diffusion.Solvent(Water) ; Moves from low solute area to the high solute area by the process of osmosis._____________________________________ROW 1 :26: Inside the cell (because inside the cell there is 5% solute(salt) whereas outside the cell it is 10%)
27: Outside the cell (outside the cell there is more concentration of salt so water moves out)
ROW 2:In Row 2 there is equal amount of salt outside and inside the cell so Solute and Solvent do not move because the solution is ISOTONIC
28: NO MOVEMENT
29: NO MOVEMENT
ROW 3:30: Glucose moves outside the cell
31: Water moves inside the cell (because glucose is more inside the cell)
ROW 432: Outside the cell (same reasons as above)
33: Inside the cell
ROW 534: NO MOVEMENT
35: NO MOVEMENT
ROW 636: Outside the cell
37: Inside the cell
ROW 738: Inside the cell
39: Outside the cell
ROW 840: Outside the cell
41: Inside the cell
ROW 942: Inside the cell
43: Outside the cell
_____________________________________The number of waves passing the observer per second is:
- the wavelength
- the amplitude
-the frequency
- the period
Answer:
frequency
Explanation:
comment if im wrong
The number of waves passing the observer per second is the frequency. Hence, the correct option is C.
What is frequency?Frequency refers to the number of waves that pass from a fixed point in unit time. It is a measure of the rate of repetition of a periodic phenomenon such as vibration or a wave.
It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle per second. The more cycles that occur per second, the higher the frequency of the system is.
For example-The human heart beats at a frequency of 68 beats per minute.
In general, frequency is a very important concept in many fields including physics, engineering, music and the natural sciences, and it is used to describe and analyze a wide range of periodic phenomenon.
Therefore, the correct option is C i.e., frequency.
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