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.
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 biomolecule(s) do athletes need to consume before a big game, to have energy to perform.?
Answer:
glucose
Explanation:
So that, its oxidation would produce more ATP as energy for the game
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
Will be marked brainliest
Say something helpful for a broken heart
Answer:
you're a nice person
Explanation:
your a wonderful person and you keep your words you dont let me down and your very intelligent iluWhich gender do you think is more affected by inheriting a mutated gene that causes red green colorblindness?
Answer:
The genes that can give you red-green color blindness are passed down on the X chromosome. Since it's passed down on the X chromosome, red-green color blindness is more common in men. This is because: Males have only 1 X chromosome, from their mother.
Explanation:
Hope this helps u
Crown me as brainliest:)
Answer:
Males
Explanation:
Males would be more affected, because they inherit only one X chromosome. Women would have to inherit two recessive genes to develop the trait, while men would have to inherit only one.
What is the primary specie of leaf insects?
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.
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:
What do I already know about chemical and physical properties and changes? Identifying Pure Substances Which of the following is a pure substance? Select all that apply.
A. air
B. distilled water
C. iron sulfide
D. oxygen gas
E. seawater
F. sodium chloride
Answer: db a
Explanation:
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
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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Which of these may be required to become a
nurse? Select all that apply.
doctoral program
two-year college
four-year college
certification
Answer:
What is required to become a nurse is two-year college or four-year college
and certification.
Explanation:
The nurses are in charge of the care of the patients and the administration of medicines, in addition to other activities that pursue the integral care of the sick person. To do this, nurses must receive training and demonstrate their ability to do the job.
Nursing training can be accomplished through various programs, including an associate's degree in nursing, a diploma, or a bachelor's degree, which can be completed in two, three, or four years, respectively.
After their studies, nurses must demonstrate their skills and knowledge in order to be certified —in addition to college— by institutions such as American Nurses Credentialing Center Certifications.
Doctoral program is a higher degree that requires more years of study and is not initially required to become a nurse.
Which of the following is a scalar quantity?
⇒velocity
⇒speed
⇒force
Answer: A. Speed
Explanation: Hope it Helps!
describe the two types of external growth factors
Answer:
Chemical and physical signals
Explanation:
Growth factors - proteins that stimulate cell division
(Most mammal cells form a single layer in a petri dish and stop dividing when they touch other cells.)
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:
Someone please help me
Answer:
d
Explanation:
Atom Z has a full valence shell which makes it the most stable.
The diagram shows a ball resting at the top of a hill.
Which statement best describes the energy in this
system?
х
O The potential energy in the system is greatest at X.
The kinetic energy in the system is greatest at X
O Total energy in the system decreases as the ball
moves from X to Y
O Total energy in the system increases as the ball
moves from X to Y
Answer:
O Total energy in the system decreases as the ball
Explanation:
The statement which best describes the energy in this system is: A. The potential energy in the system is greatest at X.
What is potential energy?Potential energy can be defined as a form of energy that is possessed by an object due to its height (position or location) above a surface or planet Earth.
How to calculate potential energy.Mathematically, potential energy is given by this formula:
[tex]P.E = mgh[/tex]
Where:
m is the mass.h is the height.g is acceleration due to gravity.Since the height is maximum at point X, the potential energy in the system is greatest at X.
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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 best describes technology?
A. Government regulation of science
B. The society of humans on Earth
C. The creative use of science to solve problems
D. The process of research
Answer: C
Explanation: the application of scientific knowledge for practical purposes, especially in industry
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.
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If the neuron in the figure above is an interneuron where does it send its message
Answer: A) Dendrites
Explanation:
Cell body. Also known as a soma, the cell body is the neuron's core.Axon. An axon is a long, tail-like structure which joins the cell body at a specialized junction called the axon hillock.Dendrites. Dendrites are fibrous roots that branch out from the cell body.Rainwater is naturally acidic.
O True
False
Fill in the blank.
The fluid_______which houses the proteins and limits what goes in and out of the cell.
Answer:plasma membrane
Explanation:its fluid is of lipid bilayer protein components embedded in it.
what must occur before any cells can divide?
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»Answer
The DNA must copy itself. This is necessary so that each of the two cells produced will have the correct number of chromosomes.
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PSYCHOLOGY
Describe two communication differences between the nervous system and endocrine system.
The nervous system uses an electrical messaging system requiring a short time and endocrine system uses a chemical system requiring a longer time.
What are functions of nervous and endocrine system?Both the nervous system and the endocrine system work to coordinate the functions of the body. They secrete substances to carry their functions, which reach the effector organs.
The organs comprising the nervous system are brain, spinal cord and the remaining peripheral nerves. The endocrine system is comprised of glands.
The functions of endocrine system are carried by the hormones and the functions of nervous system are carried out by neurotransmitters. The hormones are secreted by the glands into the bloodstream. The neurotransmitters are secreted by the neurons into the connecting neuron.
Therefore, the mechanism of action of endocrine system takes longer to cause effect than the nervous system.
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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
How are archaea and bacteria alike
Answer:
Archaea and bacteria are both prokaryotes, meaning they do not have a nucleus and lack membrane-bound organelles. ... Both archaea and bacteria have flagella, thread-like structures that allow organisms to move by propelling them through their environment.
Explanation:
1.Excess carbon dioxide is harmful to
the oceans because
A. they product carbonic acid form
the atmospheric carbon
B. it removes most of the dissolved
oxygen
C. it decreases the rate of evaporation
Increased levels of CO2 make the ocean more acidic and put sea organisms in danger. This could mean slower growth in the world's corals reefs, which are already stressed and dying from the warmer ocean temperatures associated with increased greenhouse gases in the atmosphere.
What are the causes and effects of ocean acidification?Ocean acidification is mainly driven by carbon dioxide gas in the climate dissolving into the sea.
This directs to a lowering of the water's pH, making the sea more acidic. Many factors contribute to rising carbon dioxide levels.
Thus, correct option is "A" they product carbonic acid form the atmospheric carbon.
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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.
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