Answers
Answer:
When a peeled potato is placed in distilled water it will expand as result of osmosis
If some salt is added to the water the potato will shrink
A drop of ink is placed in a glass of pure, clear water, and after a while all the water turns blue. This spread is as result of osmosis
Explanation:
Hope it helped!
Related Questions
Scientists have found mesosaurus fossils (a prehistoric reptile) on the
each coast of South America and the west coast of South Africa. These
areas are now an ocean apart! Even though we know this animal could
swim, does the presence of mesosaurus fossils in two places support
Wegener's theory of continental drift? Explain your answer.
Answers
Answer:
Explanation:
It does not support Wegener's theory of continental drift. Africa and South America were the part of a same land mass at one time, which then got separated into two different land forms called North America and South America and drifted to different locations other than the one from where they originated. This occurred due to continental drift. The evidence of this phenomena can be observed in fossils that were found to be same in both land forms. This depicts that same type of organisms were living in both land forms. Hence, gives the evidence that land forms were related.
plssss help i will mark brainliest
Answers
Answer: 1, 3, 5, and 6
Explanation:
Answer:
DNA and Cytoplasm all cells have both in common
When cells want to store up energy will they add or delete a phosphate group
Answers
Answer:
they will add.
Explanation:
When a cell has energy available it can store small amounts of energy by adding a phosphate group to ADP molecules producing ATP molecules. The energy stored in ATP is released when ATP is converted to ADP and a phosphate group.
Which of the following is/are characteristics shared by most animals?
Asexual reproduction
Heterotrophic eukaryotes
All have radial symmetry
All have DNA outside of the nucleus
Answers
what organisms is unicellular? answered already!!!!
Answers
Answer:
hope you got the answer
Explanation:
Which statement best describes how a catalyst can speed up a chemical reaction?
The catalyst decreases the activation energy needed.
The catalyst increases the concentration of products.
The catalyst binds to enzymes to release substrates.
The catalyst increases the concentration of reactants.
Answers
Explanation:
The catalyst decreases the activation energy needed.
Catalyst can speed up a chemical reaction by decreasing the activation energy needed. Thus option a is correct.
What is catalyst?Catalyst is defined as a material that allows a chemical process to happen under new circumstances or at a typically faster rate.
It can also be defined as an additive ingredient that can speed up a reaction without being consumed during the process.
There are basically four types of catalyst.
Homogenous catalystHeterogenous catalystHeterogenized homogenous catalystBiocatalystNickel, When making margarine out of palm oil, Ni is employed. In the Haber process, iron (Fe) is employed etc. are some of the example of catalyst.
Thus, catalyst can speed up a chemical reaction by decreasing the activation energy needed. Thus option a is correct.
To learn more about catalyst , refer to the link below:
https://brainly.com/question/12260131
#SPJ6
Experiments can be carried out only in a science lab.
TRUE OR FALSE.
Answers
Answer:
False
Explanation:
i hope i am right
What would be the result if crossing over did not happen during meiosis in humans?
Answers
Answer:
A lack of genetic variation in offspring
How did the temperature relate to the “recommended temperature limit” (solid horizontal red line)?
Someone please just explain this question
Answers
Answer:
The “recommended temperature limit” indicates limit of the temperature that is good for our world.
Explanation:
The temperature related to the “recommended temperature limit” means that in the graph there is a limit of temperature for our world's environment. if the temperature is between this limit, there is less or no adverse effect on our environment while on the hand, if the temperature exceeds from this limit, then it adversely affected our world because the concentration of carbondioxide gas in the atmosphere increases due to this increase temperature..
Based on the arrows, what does the image represent? Air masses are barely moving. Air masses are colliding with each other. Jet streams are forming in the upper atmosphere. Weather conditions are remaining steady and unchanged.
Answers
Answer:
2-Air masses are colliding with each other.
Explanation:
have a great day <3
From the image given below its clear that the warm is rising upwards and as a result of the collision from the cold winds or front from below, hence the development of clouds that make the thunderstorms appear.And a result of this turbulent the rising air is pushed and the warm front cycle takes a turn and will lead to either development of cyclone or rainfall.__________independent cells begin to form during ______________________________.
Answers
Answer:
its 2 and telephase 1
Explanation:
Describe at least two of the four major systems we looked at in class: Ice, Water, Land, Atmosphere and
provide a specific example of how these systems are connected to one another
Answers
PLEASEEEE HELPPP ME ! I NEED HELPP!
Answers
Answer:
an a era
Explanation:
i dont know which era some point in time
What stage of photosynthesis uses
carbon dioxide to make glucose?
A. Light reactions
B. Calvin Cycle
C. ATP synthesis
D. Cellular respiration
Answers
Answer:
Calvin Cycle
Explanation:
The Calvin cycle takes over where the light reactions end. It uses chemical energy stored in ATP and NADPH (from the light reactions) and carbon dioxide from the air to produce glucose, the molecule that virtually all organisms use for food.
Describe the relationship between a tree and a cow. (Use terms like oxygen, carbon dioxide, photosynthesis, and cellular respiration)
Answers
Answer:
Without the tree the cow couldn't live.
Explanation
The cow breathes in oxygen and breathes out carbon dioxide. The tree uses cellular respiration and photosynthesis in order to take carbon dioxide (which the cow produces) and make it into oxygen (which the cow needs to breaths).
have you ever heard that a potato is a starchy vegetable? starch is a carbohydrate like the sugars, glucose, sucrose and lactose. how did this plant form the starch that is in the potatoes?
Answers
Answer:
co2
Explanation:
Plz help!!?? Due today
Answers
Answer:
6) unicellular means organisms contains one cell while multicellular means organisms contain more than none cell.
7) Each cell have different organells that carry different functions. For example, a cell have a organell named nucleus and its function is to store DNA
8) eukaryotic meas organisms with many cells aka are multicellular and prokaryotic means organism with single cells aka are unicellular.\
9) bunch of tissues together forms organs. and bunch of organs together forms organ system
Explanation:
Which will most likely result from a low-pressure weather system?
B. warm temperatures
D. cloudy conditions
A. clear conditions
C. cool temperatures
Answers
a low-pressure system usually brings clouds and precipitation
why might it be important to know a person's lung capacity?
Answers
Answer:
Explanation:
I would talk about how lung can help dictate someones physical condition, and the shape that their lungs are in. (dictate VO2 max, etc.) it can also tell yo u whether someone is severely out of shape, a smoker, in very good shape, a runner, etc.
CO2 + H2O à H2O3
Is the above chemical equation balanced? Why or why not?
Answers
what type of selection causes a shift in advantageous traits
Answers
Answer:
Natural Selection
Explanation:
In population genetics, directional selection, or positive selection is a mode of natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype.
Does the sodium-potassium pump move?
Answers
Answer:
The pumping method of sodium-potassium pushes sodium and potassium ions against elevated concentration levels. It transfers two potassium ions into the cell where the levels of potassium are high, and pumps three sodium ions into the extracellular fluid and out of the cell.
Explanation:
ATP's hydrolysis is an active transport mechanism by the passage of sodium and potassium ions across the cell membrane to provide the required energy.
A tall pea plant with red flowers has the genotype TtRr. This plant is crossed with another tall pea plant with white flowers, having the genotype Ttrr. What is the probability of getting dwarf plants with red flowers in the F1 progeny
Answers
Answer:
1/8 or 12.5%
Explanation:
This question involves two genes coding for height and flower color in pea plant. The alleles for tallness (T) and red flowers (R) are dominant over the alleles of short (t) and white flowers (r).
According to this question, a tall pea plant with red flowers (TtRr) is crossed with another tall pea plant with white flowers (Ttrr). The following gametes is produced by each parent:
TtRr - TR, Tr, tR and tr
Ttrr - Tr, Tr, tr and TR
Using these gametes in a punnet square (see attached image), the following proportion of F1 offsprings will be produced as follows:
Tall, Red (T_R_) = 6
Tall, white (T_rr) = 6
Dwarf, red (ttR_) = 2
Dwarf, white (ttrr) = 2
The probability of getting dwarf plants with red flowers in the F1 progeny is 1/8 or 12.5%.
Answer:
12.5
Explanation:
got it correct on test
Which sequence correctly indicates the branching pattern of the human respiratory system?
A) trachea bronchi bronchioles alveoli
B) trachea bronchioles bronchi alveoli
C) alveoli trachea bronchioles bronchi
D) alveoli bronchioles trachea bronchi
Answers
Answer:
A
Explanation:
The system including tissues and organs needed for breathing and exchanging gases is called the respiratory system. It is essential for providing fresh air and eliminating the waste air from the body.
The branching pattern of the human respiratory system includes option A) trachea bronchi bronchioles and alveoli.
The Respiratory system can be explained as:The respiratory system includes the major organ lungs which along with some other tissues makes up the whole system. The trachea gets diverged into two branches named bronchi which further splits into lungs called bronchioles.The bronchioles spread throughout the lungs and have a sac-like small structure on its end called alveoli where the exchange of gases takes place.Therefore, option A is the correct sequence of respiratory branching.
Learn more about the respiratory system here:
https://brainly.com/question/1621897
Which atom is involved in giving your heart energy to beat?
carbon
O gold
o oxygen
Tron
Answers
Answer:
hello
Explanation:
your answer of this question is oxygen
Answer:
OXYGEN!!
Explanation:
Oxygen is involved in giving your heart energy to beat.
If the initial population is 100, and the growth rate is 0.3, what will the population be at t
= 9?
Answers
Answer:
≈ 1060.45
Explanation:
You would use the exponential growth formula:
[tex]y=a\left(1+r\right)^{x}[/tex]
[tex]y=100\left(1+0.3\right)^{9}[/tex]
[tex]a =[/tex] initial value
[tex]r =[/tex] growth rate
[tex]x =[/tex] time interval
what is the car's acceleration from 0 to 1 second
Answers
Answer:
What do you mean?
Explanation:
examples.
Protein
a. Long term energy storage and
heat insulation (keep warm)
Carbohydrate
b. Make up the cell wall (Cellulose)
and short term energy
Lipid
c. Store genetic information
DNA
d. Speed up the rate of chemical
reactions with enzymes
NOTES Definitions:
Answers
Answer:
cellulose is the answer
Explanation:
carryonleanring
What are two kinds of molecules that make a good model of a solid dissolving in a liquid?
Answers
Answer:
In the simplest case it involves mixing two materials together. The most common examples of dissolving involve a solid and a liquid, usually water. When a solid dissolves the solid (solute) and the liquid (solvent) form a very close intimate mixture called a solution.
Explanation:
1.what is considered as the building block of nature? ____________
2.are all cells multicellular? support your answer.___________
3.give an example of unicellular organism._____________
4.differentiate a unicellular organism from a multicellular organism._________________
5.can there be tissues,organs and systems without cells? support your answer._____________
Answers
2- No, because some unicellular organisms like bacteria only consist of 1 cell.
3- An example is bacteria, amoeba, etc.
4- Multicellular organism consist of different cells and mostly have different specialized cells. Unicellular organisms carry out their functions like multicellular, but all in 1 cell. They are known to be smaller than multicellular organisms.
5- No, because cells are the building blocks of life and you need cells to form together to form tissues, later into organs and organ systems. Tissues and organs function due to the amount of cells functioning. Tissues and organs are the formation of cells that serve a function to create more complex systems.