Answer:
A single strand of DNA is a polymer of nucleic acids joined covalently between the phosphate group of one and the deoxyribose sugar of the next to for a “backbone” from which the nitrogenous bases stick out. In its natural state, DNA has two strands wound around each other in a double helix.
Explanation:
A city is supplied by water from local wells. The city discharges its treated wastewater into the ocean.The city uses 25,000 liters of water per person per year. Precipitation falls in the amount of 25,000 liters per person per year.
Is the city using its water supply in a sustainable manner?
A)yes
B)no
Answer:
B)no
Explanation:
Sustainable use of water means use of water to fulfil various human needs for water without having any negative impact on the environment.
The sustainable use of water allows a minimum of 20 to 50 litres of daily water per person to fulfil their water needs, that means 600 litres maximum per person per year but in the given situation the city uses 25,000 litres of water per person per year.
This shows that people in the city are not using water sustainably which is causing a fall in precipitation.
Hence, the correct answer is "No".
Vhy did the color of the peppered moth change?
A.The moths' life cycle changed,
B.The environment changed
C.The amount of variation in the moth population changed
D.The number of individual moths in the population changed,
Answer:
the environment changed
Explanation:
The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. ... Later, when pollution was reduced, the light-coloured form again predominated.
Answer:
B.The environment changed
Explanation:
What is the role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem
Answer:Cellular respiration in plants and animals involve chemical reactions with oxygen that release stored energy. ... Plants, algae, and many microorganisms use the energy from light, carbon dioxide from the atmosphere, and water to make sugars (food) through the process of photosynthesis, which also releases oxygen.
Explanation:
hope it helps :)
The role of photosynthesis and cellular respiration in the cycling of matter and the flow of energy through the ecosystem is the following:
The fundamental energy source of all ecosystems is the Sun, which sends a large amount of energy to Earth in the form of light and heat.
The various green plants use energy from the sun, water and nutrients from the soil, and carbon dioxide from the air to produce organic matter.
The process by which light is used as an energy source to transform CO2 into organic compounds essential for life is called photosynthesis.
The manufactured organic matter is used by the photosynthetic organisms themselves for the maintenance of their vital processes through cellular respiration.
Energy, once solar energy is transformed by producers into chemical energy by making organic matter in photosynthesis, is transmitted along with matter.
In each transfer of energy, between the different types of organisms there is a release of energy to the environment, in the form of heat.
On the contrary, matter flows cyclically, chemical elements are transferred between living beings and in the physical environment of each ecosystem.
Therefore, we can conclude that the role of photosynthesis in the cycling of matter and the flow of energy through the ecosystem is to produce the transformation not only of inorganic into organic matter, but also of light energy into chemical binding energy, oxygen is released as a waste product and is used by most organisms for cellular respiration.
Learn more here: https://brainly.com/question/19427203
a group of organisms of the same species linving in an area is called
Answer:is called a pack
Explanation:
If there has been a drought for 6 month's what is the likely response of a seed?
What kind of leaf is this
The cytoplasm in a particular cell is contains 5% salt with the rest being
water. The cell is placed in a solution of 25% Salt. Which way does the water
flow and how does this affect the cells appearance?
Which phrase describes faults?
Cause gaps in the geologic record
Cause rocks to break and move
Are older than surrounding rocks
Are igneous rocks that form beneath Earth's surface
Answer:
The answer is B, cause rocks to break and move.
Explanation:
Answer:
The answer is B, cause rocks to break and move.
A worker who harvests vegetables would be susceptible to which of the following combinations of hazards?
-unsafe equipment and falls
-noise and vehicle injuries
-unclean conditions and respiratory risks
-heat and muscle injuries
Answer:
heat and muscle injuries
Explanation:
edge 2020
Explain how deforestation contributes to global warming.
Answer:
Using machinery to cut down trees lets gasses into the atmosphere, and contributes to the Greenhouse effect. This causes heat from the sun to become trapped in the atmosphere and gradually cause a global rise in temperature.
Explanation:
Which of the following is an example of how enzymes are catalyst?
A. Enzymes can alter the free energy change (∆G) for a chemical reaction.
B. Enzymes increase the free energy of the reactants to make the reaction go faster.
C. Enzymes provide the activation energy for the reactions they facilitate.
D. Enzymes lower the activation energy so that reactants absorb enough energy to reach transition state.
Answer:
d
Explanation:
Use hydrogen bonding to explain how the unique properties of water you observed emerge.
Due to the existence of hydrogen bonding between the hydrogen atom and an oxygen atom of a water molecule, it shows the following unique properties.
It is polar in nature.It has a high heat of vaporization and high specific heat.Its solid form is less dense as compared to its liquid form.It illustrates other properties like cohesion and adhesion.It acts as a universal solvent.How the charges are distributed in a water molecule?The distribution of charge is determined by the fact that the oxygen atom attracts electrons a bit more strongly than the hydrogen atom. This is due to the unequal sharing of electrons between the two different atoms.
This unequal sharing of electrons is responsible for obtaining a slight negative charge near the oxygen atom, while a slight positive charge near the hydrogen atom.
Therefore, it is well described above.
To learn more about Water molecules, refer to the link:
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Describe hydrogen bonding
please help me! :)
Answer: hydrogen bonding is the association between a hydrogen atom which is somewhat positive because it is bonded to a small electronegative atom and an atom of O, N or F on another molecule
Explanation:
What chemical elements are present in proteins?
Energy is released from ATP when a phosphate group is removed.
true or false?
Yes! True!
[From nature.com] "When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP). Likewise, energy is also released when a phosphate is removed from ADP to form adenosine monophosphate (AMP)."
Answer:
true bro trust me
Explanation:
ASAP PLEASE
All living things maintain a balance within their cells and with the environment through the process of
Group of answer choices
Evolution
Homeostasis
Growth
Development
Answer:
its Homeostasis
Explanation:
hope this helps
Answer:
its (c) Growth.
Explanation:
Basically living things contain "growth" to make cells out of living things like plants or animals.
there's your answer mate :)
HELPPPPPP ASAAPPPPPPPPP
how many plant species of the tropical rain forest are identified as having some measure of cancer-fighting ability?
The National Cancer Institute (NCI) has screened approximately 35,000 plant species for potential anticancer activities. Among them, about 3,000 plant species have demonstrated reproducible anticancer activity
write one sentence using both words in the pair.
Taiga, swamp
Answer:
I went to visit a Taiga, which can sometimes be like a swamp.
i need help with this,
it’s for biology
Explanation:
this is your answer
I hope it is clear
Answer: This is the REAL answer smh
Explanation:
The government want to set new regulation that reduce carbon emission
Answer:
"It will reduce greenhouse gases in the atmosphere" is the one reason among the following choices given in the question that this act will help with the sustainability of our environment. The correct option among all the options that are given in the question is the first option. I hope that the answer has helped you.
Explanation:
in mutualism neither organism benefits true or false
Conducting experiments,
using inquiry, and asking testable questions are processes that are used by
Answer:
scientists
Explanation:
just is
Do trees keep their internal parts separate from the outside environment?
Answer:
yes, they do.
Explanation:
Describe the effect of increasing the number of tablets dissolved in water on the number of new leaves in four weeks. 25 points
In Hawaii, new land forms when lava erupts from Kīlauea volcano and hardens. The new land is without any living things. The first organisms to populate the surface of that new land are known as species. With time, a series of changes called succession occur on the new land through which it becomes colonized by a variety of organisms.
Answer:
Primary succession
Explanation:
The new landforms that are devoid of any vegetation have barren and rocky environment are colonized by the first plant species like grass and moss is called as primary succession which changes with time and occurs on new lands that not colonized yet and later on gets colonized a variety of organisms.An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of _____ amu
Answer:
The answer is 13
Explanation:
To find the amu you have to add the # of protons to the # of neutrons.
How are these genes related?
Plants may grow faster if they have more
carbon dioxide.
Clear plastic bag
Indigestion tablets dissolve in water to form a
solution.
This solution slowly gives off carbon dioxide.
A student set up an investigation to see what
concentration of carbon dioxide is best for
increasing the growth of geranium plants.
Dish containing water
and one tablet
The student:
put a geranium plant in a clear plastic bag
put a dish containing water and one tablet in the bag and sealed the top of the bag.
The student:
set up 5 more experiments each with water and a different number of tablet and left all
the plants in a well-lit place for four weeks.
The student used a clear plastic bag, not a black plastic bag.
Explain why.
Answer:
the clear plastic bag is used for the sunlight penetration to allow photosynthesis to take place (i guess this is the answer I'm not sure tho but think about it) Black plastic bag would prevent the light penetration
Rank the cycles covered in order from I being least necessary to 4 being most necessary. Provide an explanation for your ranking.
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Steal your competitors' keywords. ...
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PLEASE HELP!!!!!! I HAVE TO TURN THIS IN SOON!!!!
HELP ME FILL IN THE BLANKS
Oceanic crust is ___________ dense than continental crust, thus it goes underneath the continental crust forming a ________________.
Answer:
More dense
Explanation: