Answer:
A. Uracil BaseExplanation:
Slight sure
#Brainlist :) Ty
Explain what would happen if water did not expand when freezing. How would this impact aquatic life?
Explanation:
If water did not expand when freezing, then it would be denser than liquid water when it froze; therefore it would sink and fill lakes or the ocean from bottom to top. Once the oceans filled with ice, life there would not be possible.
The characteristic of a cell membrane that allows materials to pass troughs it is called ?
A.synthesis
B.polarity
C.permeability
D.catalysis
Answer:
It's permeability
Explanation:
I WILL GIVE 100 POINTS!!
You have learned that heat moves from warm areas to cooler ones. In solids, heat is transferred by the physical touching of molecules. This type of heat transfer is called conduction. Some materials, like metal, conduct heat better than other materials. In fluids (liquids and gases), heat is transferred by convection currents caused by differences in density.
MATERIALS
hot water
cold water
metal fork
plastic fork
stick of cold butter
large glass
watch or clock with a second hand
yellow and blue food coloring
playing card
four empty, identical plastic bottles (sports drink bottles work well)
access to a sink
QUESTIONS
Part 1
What type of heat transfer is demonstrated in Part 1?
How long did it take for the butter to melt off of the plastic fork? The metal fork?
How do explain the difference in time between the two forks?
Part 2
What type of heat transfer is demonstrated in Part 2?
What happened when the warm water bottle was placed over the cold water bottle? Why?
What happened when the cold water bottle was placed over the warm water bottle? Why?
Pt. 1
In gases and liquids, heat is usually transferred by convection, in which the motion of the gas or liquid itself carries heat from one place to another. ... If you boil water in a kettle, the heat is transferred through convection from the fire to the pot.
Pt. 2
This motion of fluids is called convection. In the set of bottles where the hot water was above the cold water, the cold water was already on the bottom, so there was no convection.
Pt. 3
When the bottle was put into the cold water, the air in the bottle contracted, taking up a smaller space in the bottle. The sides of the bottle pushed in when the air inside controlled
when a piece of zucchini is soaked in salt water, the zucchini loses its firmness. Which process best explains what happens to the zucchini?
Explanation:
The zucchini is breaking down which we already know bit the zuchinni is absorbing and breaking down at the same time so when that happens the cells are expanding and breaking
think of a water balloon
Answer:
The cells in the zucchini shrink because they lose their water.
Explanation:
how does evolution operate via the gene pool of population
Answer:
The composition of a population's gene pool can change over time through evolution. This can occur by a variety of mechanisms, including mutations, natural selection, and genetic drift. The result is a gene pool that is altered to be attuned to the needs of the population's specific environment.
Explanation:
Juanita and Alfred hypothesize that a seed will sprout faster if it is warmer. They plant three seeds and water them the same amount. One seed is placed near a heater, one is left at room temperature, and one in a refrigerator. The results are shown in the table below. Do the results support the hypothesis?
Temperature of Seed Days to Sprout
by heater 2 days
room temperature 5 days
in refrigerator did not sprout
A.
No, because the seeds all sprouted at the same time.
B.
Yes, because the cooler seeds sprouted sooner.
C.
Yes, because the warmer seeds sprouted sooner.
D.
No, because the cooler seeds sprouted sooner.
Answer:
C
Explanation:
Yes, because the warmer seeds sprouted sooner.
Yes, because the warmer seeds sprouted sooner.
What is Room temperature?
The typical temperature range in a home is widely agreed to be between 68 and 76 degrees Fahrenheit, specific variations and geographic variations aside.
The use of smart home appliances, such as a smart AC controller, automates the maintenance of these typical house temperatures at all times, however keeping the ideal room temperature is a challenge.
The location, season, type of house, and personal preferences are just a few of the many variables that can dramatically affect the appropriate room temperature. When determining appropriate room temperatures, home architecture is a crucial factor.
Therefore, Yes, because the warmer seeds sprouted sooner.
To learn more about Warmer seeds, refer to the link:
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Q.which bird don't make its own nest?
The common cuckoo does not make a nest of its own, and they do not bring up their own young. Instead, the female lays her eggs in the nests of other birds. Each female cuckoo specialises in just one host species, and lays camouflaged eggs in that bird's nest.
Human Sperm cell must move rapidly, using a lot of energy, in order to reach the egg before they die. Based on this information, which organelle would be more abundant in a sperm cell than a skin cell?
Answer:
Mitochondria
Explanation:
Mitochondria are energy-producing organelles. They are the site of cellular respiration, and produce ATP to power cellular processes.
Cells that have large energy requirements, such as muscle cells and sperm cells, possess a lot of mitochondria,
Which of the following is used to bind the bricks of the wall?
a) glass b) wool c) cement d) steel
if humans didn't exist what would the world be right now and the life on it
Answer:
"Effectively, there used to be large animals everywhere, and there would be large animals everywhere around the globe without human involvement." His research has revealed that without humanity's heavy species impact, the central United States, and parts of South America,
Explanation:
NPR. Imagining a World Without Humans What would happen to the Earth if all humans suddenly disappeared? In his new book, The World Without Us, author Alan Weisman discusses how long it would take for all evidence of human life to vanish from the planet.
10 Species That Would Dominate if Humans Died Out
The Rats. Rats love disasters. ...
The Bears. Humans are unquestionably masters of the planet. ...
The Dogs. If you've ever been to a developing nation, you know that dogs are already in charge of large swathes of the planet. ...
The Ants. ...
The Pigs. ...
The Octopi. ...
The Racoons. ...
The Cockroaches.
What are some consequences of poor forecasting?
Answer:
Poor forecasting leads to poor business decisions and can sometimes lead to catastrophic results. Optimistic forecasts often mean that the firm projects a demand that is much higher than the actual demand and will lead to inventories pilling up and retailers having to discount the products to clear the shelves.
Answer: Some consequences of poor forecasting are poor business decisions and can sometimes lead to catastrophic results.
Explanation: Hope this helps! :3
23
Put the 4 phases of mitosis in the correct order.
III
Prophase
Telophase
III
Anaphase
III
Metaphase
Answer:
beef
Explanation:
poop
Answer:
prophase, metaphase, anaphase, and telophase
Explanation:
I'm happy to help
which human activity negatively affects the stability of the enviroment
Answer:
pesticides
Explanation:
damages soil and plants
Polarity of bonds and molecules is determined by the of atoms involved.
Answer:
Bond polarity is determined by the difference in electronegativity and is defined as the relative ability of an atom to attract electrons when present in a compound.
Explanation: :))
electronegativity
Explanation:
usa test prep
Which of the following are true statements regarding cellular respiration? Lactic acid fermentation is an aerobic process The final electron acceptor in the electron transport chain is oxygen ATP are produced in Krebs cycle Two of these answer choices are correct All of these statements are correct
Answer:
not all of the statement is correct. THE LACTIC ACID FERMENTATION IS ANAEROBIC not an aerobic.
The statements which are correct regarding cellular respiration are;
The final electron acceptor in the electron transport chain is oxygen.ATP are produced in Krebs cycle.As such, Two of the answer choices are correct.
Lactic acid fermentation is an anaerobic fermentation reaction that occurs in some bacteria and animal cells, such as muscle cells.The electron transport chain is one of the series of catabolic pathways of aerobic respiration that uses free oxygen as the final electron acceptor of the electrons removed from the intermediate compounds in glucose catabolism.The Krebs cycle takes place in the mitochondria. The Krebs cycle produces the CO2 that you breath out. This stage produces most of the energy ( 34 ATP molecules, compared to only 2 ATP for glycolysis and 2 ATP for Krebs cycle). ... It is at this stage that NADH is converted into ATP.Read more:
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Exam
What do we call information you've
gathered, whether through
experimentation or research?
A. hypothesis
B. data
C. conclusion
D. procedures
What are the approximate coordinates of the star Rigel?
Answer:
approximately 860 light-years (260 pc) from Earth
Which major type of air mass typically brings cool, dry weather? maritime polar continental polar maritime tropical continental tropical
Answer:
b on eng 2020-2021
Explanation:
Air mass is defined as the volume of air that is determined by the temperature and water vapor content. The air mass is divided into four categories, which are maritime polar, continental polar, maritime tropical, and continental tropical.
The correct answer is:
Option B. continental polar
Continental polar air masses are generally cold and dry because they arise from the continental region. The air mass is stable and originates over Canada and Alaska. The continental polar are marked by the surface high pressure, cold temperatures, and low dew points.
The maritime tropical air mass is warm, moist, and unstable, whereas the continental tropical air mass is originated from the low-altitude desert and is characterized by negligible rainfall.
Therefore, option B is correct.
To know more about air mass, refer to the following link:
https://brainly.com/question/12089291
In biological systems, chemical energy can be stored in glucose or
released and made available for use. Which of the following
statements correctly describes how this energy is stored and then
released for use?
A.
Energy is stored in organic compounds during the process of cellular
respiration and then released during the process of photosynthesis.
B.
Energy is stored in organic compounds during the process of
photosynthesis and then released during the process of cellular
respiration.
C.
Photosynthesis and cellular respiration are both responsible for
storing energy in organic compounds and fermentation is responsible
for releasing that energy.
D.
Fermentation is responsible for storing energy in organic compounds
while both photosynthesis and cellular respiration are responsible for
releasing that energy.
Answer:
The anwser is A! i am taking a test with the exact question!!! please mark brainliest
A
Energy is stored in organic compounds during the process of cellular respiration and then released during the process of photosynthesis. Thus, Option A is correct.
what are the factors affecting photosynthesis?It is a process by which autotrophic plant and bacteria use light energy as a source to make sugar from water and carbon dioxide.
They convert light energy into chemical energy which is stored in the form of starch.
The surface of Leaves have chloroplast which absorb light energy.
[tex]\rm 6\;CO_2\;+\;6\;H_2O\;\rightarrow\;C_6H_{12}O_6\;+\;6\;O_2\\\\[/tex]
Th factors affecting photosynthesis are the intensity of light energy increased then rate of photosynthesis also enhanced.
Higher concentration of carbon dioxide induces the rate of photosynthesis. The average range CO2 needed is from 300 – 400 PPM
The adequate temperature needed between 25° to 35° C and water is an important factor, the scarcity leads to refusal of stomatal opening to retain the amount of water.
Thus, Option A is correct.
Learn more about photosynthesis, here:
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1. In the 1820s what did scientists think all dinosaurs really were
Answer:
yes dinosaurs were there
Explanation:
some fossils and skeleton models were found as proof
what force dose dark energy have on the universe?
function of typosole
8) Bacteria can get past the skin through
Answer:
wounds, open sores or any openings
Explanation:
Answer:
Pores
Explanation:
Pores are small holes on the skin
which of the following do not contribute to the decaying process
a. sunlight b. microorganism. c. sound. water
What is NOT a reason hydrogen bonds are significant?
Question 1 options:
Many molecules can have hydrogen bonding occur between them
They are extremely strong compared to ionic or covalent bonds
They are the reason for many of water's amazing properties
They are present in very common molecules found on Earth
Example of adhesion is when water sticks to _______ and cohesion is when water sticks to __________
Question 2 options:
Different molecules or surfaces, other WATER molecules
Solids, liquids
Liquids, Solids
Other WATER molecules, different molecules or surfaces
Hydrophilic substances, such as phosphate groups ___________
Question 3 options:
Fear and run away from water
Will not dissolve in water
Are attracted to hydrogen and other gases
Love to be surrounded by water
Which statement is NOT true?
Question 5 options:
Many sugars are not organic molecules
Sugar is used for a variety of purposes other than energy
Wood and paper are almost entirely sugar
Polysaccharides are carbohydrates
Answer:1. not as strong as ionic or covalent bonds. 2. Adhesion is when water sticks to other things, not water; cohesion is when similar molecules stick together. 3. Hydrophilic means liking water. 5. polysaccharides are carbohydrates
Explanation: self explanatory
Describe the levels of organization of a human being
Answer:
wassup ExTrA
Explanation:
Life processes of the human body are maintained at several levels of structural organization. These include the chemical, cellular, tissue, organ, organ system, and the organism level. Higher levels of organization are built from lower levels.
hope this helps
Where does mountain formation generally occur?
A. Transform and convergent boundaries
B. Divergent and convergent boundaries
C. Transform boundaries
D. Divergent boundaries
Answer: B. Divergent and convergent boundary’s
Explanation: I hope this helps you! :D
Answer:
D
Explanation:
hope this helped you out
According to Arroyo, how can we better prepare and adapt to violent storms and floods?
Answer: She suggests doing three main things to prepare: adapting to violent storms and floods, preparing for heat and drought, and adapting to the rising seas by rebuilding and restructuring
Explanation:
Compare how both prokaryotes and eukaryotes use two of the cell
structures listed and describe the common functions of these structures
Answer:
I don't know I'm sorry
Explanation:
I don't remember but if you search it up it will give you the answer.
please help! I really need help!