Answer:
physical
Explanation:
example: water freezing into ice
there is no change in the chemical properties, frozen water is still water
A different jar has 100 black marbles. (The total number of marbles is unknown.) If you pull 4 marbles out and 1 is black, what is your guess for the total number of marbles?
Answer:
400 marbles
Explanation:
The total number of marbles should be 400.
Given that,
A different jar has 100 black marbles. (The total number of marbles is unknown.) If you pull 4 marbles out and 1 is black.Based on the above information, the calculation is as follows:
[tex]= 100 \times 4[/tex]
= 400
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i’m having trouble on this anyone know what goes there?
Answer:
reactants
Explanation:
....................
What is dermal plicae?
Answer:
The dorsolateral dermal plicae of the leopard frog are two pale, thickened bands of the dorsal skin extending posteriorly from each eye to the urostyle prominence While they are normally found in all areas of trunk skin, the largest ones are in the plicae
Explanation:
dermal plicae of the leopard frog are two pale, thickened bands of the dorsal skin extending posteriorly from each eye to the urostyle prominence. ... While they are normally found in all areas of trunk skin, the larg- est ones are in the plicae
How can scientists investigate the impact of limiting factors on a population?
Answer:
Limiting factors are resources or other factors in the environment that can lower the population growth rate. Limiting factors include a low food supply and lack of space. Limiting factors can lower birth rates, increase death rates, or lead to emigration.
Explanation:
Show the Work.
Calculate the first and second velocities of the car with two washers attached to the pulley, using the formulas
v1 = 0.25 m / t1, and
v2 = 0.25 m / (t2 – t1)
where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. Record these velocities, to two decimal places, in Table E.
What is the first velocity of the car with two washers at the 0.25 meter mark?
m/s
What is the second velocity of the car with two washers at the 0.50 meter mark?
m/s
(1) The first velocity of the car with two washers at the 0.25 meter mark is 0.125 m/s.
(2) The second velocity of the car with two washers at the 0.5 meter mark is 0.25 m/s.
What is velocity?Velocity is the rate of change of displacement with time. The velocity of the cars depends on displacement and time of motion.
First velocity of the car at the 0.25 meter markThe first velocity is calculated as follows;
v1 = 0.25 m / t1
let t₁ = 2 s
v₁ = 0.25/2
v₁ = 0.125 m/s
Second velocity of the car at the 0.5 meter markv2 = 0.25 m / (t2 – t1)
let t₂ = 3 s
v₂ = 0.25(3 - 2)
v₂ = 0.25 m/s
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Answer:
What is the first velocity of the car with one washer at the 0.25 meter mark?
1st = 0.11 m/s
2nd = 0.13 m/s
3rd = 0.19 m/s
What is the second velocity of the car with one washer at the 0.50 meter mark?
1st = 0.28 m/s
2nd = 0.36 m/s
3rd = 0.45 m/s
Explanation:
trust
What is meant by "true nucleus".
it simply means the cell's DNA is surrounded by a membrane. therefore the nucleus houses the cell's DNA and directs the synthesis of the proteins and ribosomes the cellular responsible for protein synthesis.
What DNA strand is complementary for the DNA strand attgcgtatcc
Answer:
TAACGCATAGG
Explanation:
The complementary for A is T (visa versa)
The complementary for G is C (visa versa).
So we just have to put the complementary for each letter to get the complementary strand.
Hope this helps!
what is environment
Explanation:
the natural environment
or condition u live for example the land, air, plants , animals.
Huntington's disease is caused by the allele H, which is completely dominant to the normal recessive allele h. Consider a couple where the man has the genotype Hh, and the woman has the genotype hh. What is the chance that their first child will develop Huntington's disease?
50%
0%
25%
75%
Answer:
25%
Explanation:
HELP ME PLZZ I NEED HELP WITH THIS!!!!
Answer:
c. plant cells
Explanation:
tiny spaces in dead cork bark
APEX: Biology Sem1; Dry Lab 2.4.3
2. What is the name of the enzyme that breaks down:
a. Protein?
b. Carbohydrate?
c. Fat/Oil?
Answer:
a. Protein: Protease
b. Carbohydrate: Amylase
c. Fat/Oil: Lipase
Explanation: cause your nipples are swollen
A plant is an example of a heterotroph. True
False
Answer:
False
Explanation:
Heterotroph means energy is made through consuming another organism.
Autotroph means energy that is made through producing by itself.
A plant makes energy by itself
So a plant is an autotroph, so this statement is false.
What best describes the relationship between the two sets of reactions of photosynthesis, which are the light-dependent reactions and the light-independent reactions?
Answer:
The light-dependent reactions produce ATP and NADPH, which are then used by the light-independent reactions.
Light-dependent reactions and light-independent reactions both produce each set of sugars, and working together they produce more sugars than they can produce separately.
What are Light-dependent and independent reactions?Light-dependent reactions which convert light energy into chemical energy, so the goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to form ATP and NADPH, while these two energy storage molecules occur which is used in light-independent reactions.
Light-dependent reactions occur in the thylakoid membrane that use light energy to make ATP and NADPH while in light-independent reactions or the Calvin cycle where electrons activated from light-dependent reactions provide energy to make carbohydrates from carbon dioxide molecules.
Thus, Light-dependent reactions and light-independent reactions both produce each set of sugars, and working together they produce more sugars than they can produce separately.
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Who can help me ? It’s due at 12:59:(
Answer:
wow
Explanation:
good luck
Will the CO2 molecules that exist today still be the CO2 molecules in a million years
Answer:
Yes
Explanation:
cause nothing is created or lost it is just cycled.
Yes, the carbon dioxide molecules existing today will be the same carbon dioxide molecules in a million years because the matter is not created or destroyed.
What is carbon dioxide?
Carbon dioxide (CO2) is a colorless gas with a sour taste and a little harsh odor. It is one of the most significant greenhouse gases associated with global warming, but it only makes up a small portion of the atmosphere on Earth (roughly 3 volumes per 10,000).
It is produced during the combustion of carbon-containing materials, fermentation, and animal respiration, as well as during the photosynthesis of carbohydrates by plants.
The so-called greenhouse effect is caused by the gas because its presence in the atmosphere prevents part of the radiant energy that Earth receives from being reflected back into space.
In the industrial setting, it is recovered for a wide range of uses from flue gases, by-products of the hydrogen-preparation process for ammonia synthesis, lime kilns, and other sources.
Therefore, the same carbon dioxide will exist in a million years as today.
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Hiiii pls answe this
Answer:
D
Explanation:
Answer:
D
Explanation:
D is the correct answer, because the Cell Theory does not state what D says.
Lesson 1 student activity: how did this little girl get so sick? Answer key
Answer: please inform me because i don’t see anything
Explanation:
girl where’s the pic of it
Three red square pieces of wood, four yellow square pieces, and five blue square pieces are put into a cloth bag. Four red round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.
The question is incomplete. Here is the complete question.
Three red square pieces of wood, four yellow square pieces, and five boue square pieces are put into a cloth bag. four re round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.
What are the chances that the piece is red round or blue round piece?
a. Cannot be determined
b. 1 chance out of 3
c. 1 chance out of 21
d. 15 chances out of 21
e. 1 chance out of 2
Because:
a. 1 of the 2 shapes is round
b. 15 of the 21 pieces are red or blue
c. There is no way to tell which piece will be picked
d. Only 1 of the 21 pieces is picked out of the bag
e. 1 of every 3 pieces is a red or blue round pieces
Answer: b. 1 chance out of 3
e. 1 of every 3 pieces is a red or a blue round pieces
Explanation: Inside the bag, there will be:
Total of squares: 3 + 4 + 5 = 12Total of round: 4 + 2 + 3 = 9Total of pieces inside the bag: 12 + 9 = 21The question is asking for a round red piece. The probability of that happening is
P(r) = [tex]\frac{4}{21}[/tex]
And a blue round piece:
P(b) = [tex]\frac{3}{21}[/tex]
It is a "OR" probability, so:
P(r or b) = [tex]\frac{4}{21} +\frac{3}{21}[/tex]
P(r or b) = [tex]\frac{7}{21}[/tex] or [tex]\frac{1}{3}[/tex]
Which means 1 out 3 pieces taken out of the bag will be red or blue.
What is the utility of tissues in
multi-cellular organisms?
Which biomolecule is important in storing and passing genetic information to our offspring?
Answer:
Nucleic Acids.
Explanation:
Nucleic acids pass off genetic information (found in the nucleus) to offsprings
What does geologic time
measure?
Answer:
The geologic time scale is the “calendar” for events in Earth history. It subdivides all time into named units of abstract time called—in descending order of duration—eons, eras, periods, epochs, and ages.
Explanation:
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What are 3 structures that bacterial (prokaryotic) cells share with eukaryotic cells?
Answer:
Cell membranes, DNA, and Ribosomes
Hope this helps!!
Answer: Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA.
plasma membrane, ribosomes, cytoplasm, and DNA.
The development of a new community in a previously uninhabited area occurs via which of the following processes?
a.secondary succession
b.primary succession
c.adaptive radiation
d.geographic isolation
Answer: B. Primary Succession
Fill in the blank with the correct sphere label.
A
В:
C
Answer:
it is a = exosphere b = biosphere and c = hydrosphere
Explanation:
the exosphere takes part in rocks and soil etc. the biosphere takes part of animals and plants etc. and the hydrosphere takes part of any water like lakes, oceans, ponds etc.
i hope i helped!
How many first-level consumers are in the food web below? *
Answer:
2: Shrubs and grasses
Explanation:
Shrubs and grasses are both first level consumers, obtaining their energy from the sun. They are also the source, essentially, of the entire food web's food sources.
True or False. The more threads a screw has the greater the holding power of the screw.
1. True
2. False
Answer:
True. The more threads a screw has the greater the holding power of the screw.
Explanation:
E If you increase the surface area of a rock, how will it affect the rate at which it weathers? It will weather more quickly. b. It will have no effect because surface area is not a factor in weathering. It will weather more slowly. d. It will have no effect because a rock does not have a surface area. C.
Answer:
it will weather more quickly
Answer:
It's A
Explanation:
How do scientists explain the slow rotation of the sun with respect to the rest of the solar system?
Answer:
The Sun rotates on its axis once in about 27 days. This rotation was first detected by observing the motion of sunspots. The Sun's rotation axis is tilted by about 7.25 degrees from the axis of the Earth's orbit so we see more of the Sun's north pole in September of each year and more of its south pole in March.
Since the Sun is a ball of gas/plasma, it does not have to rotate rigidly like the solid planets and moons do. In fact, the Sun's equatorial regions rotate faster (taking only about 24 days) than the polar regions (which rotate once in more than 30 days). The source of this "differential rotation" is an area of current research in solar astronomy.
Answer:
To explain this problem, evolutionist propose a mechanism of magnetic field breaking.
Explanation:
Draw a space filling model of water and show and describe why it is polar.
Answer:
You need to draw a water molecule but on each end put a positive and negative that is why water is polar because it is attracted to itself.
Explanation:
Stars begin their life cycle in: a. a black hole. b. a nova. c. a nebula. d. a supernova. explain for every answer PLEASE I NEED IT IS DUE TODAY!!!!!!!!!!!!!!!!
Answer:
C. a nebula
Explanation:
a supernova is when it explodes and then it turns into a black hole