Answers
Answer:
oxygen
Explanation:
its the only element needed
Related Questions
The shadow zone exists due to the of seismic waves.
O A. reflection
O B. refraction
O C. absorption
OD. deletion
Answers
Answer:
B. refraction
Explanation: hope this helps!
The shadow zone exists due to the effect of seismic waves is the refraction. Thus, the correct option will be B.
What is Refraction?Refraction can be defined as the redirection of a wave as it passes from one medium to another medium. The redirection of the waves in a medium can be caused by the wave's change in speed or by a change in the medium of wave.
Seismic waves are the waves which follow the same law of refraction at the compositional boundaries. If the seismic wave velocity in the rock below a boundary is increasing then, the waves will be refracted in the upward direction and this speed up relative to their original path of movement.
Therefore, the correct option will be B.
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What is a contribution of biological wildlife
Answers
Answer: Wildlife biologists are important to the safety and preservation of animal species, but they also benefit society as a whole. They observe animals in their natural habitats and conduct experimental studies to test for environmental hazards, diseases and unusual movement patterns.
Explanation: Mark me brainliest
Answer:
i would love to help you but i cant sorry
Explanation:
What are some helpful and harmful examples of dna mutations
Answers
Answer:
Examples of helpful mutations embrace HIV resistance, milk sugar tolerance, and colored vision.Harmful mutations may cause genetic disorders or cancer. A genetic disorder is a disease caused by a mutation in one or a few genes.How many total atoms are present in the compound 2Ca(OH)2 I’ll give brainliest on both
Answers
i think there are 10 atoms present
Contast h0m0zyg0u and h3t3r0zyg0u.
Answers
Answer:
i need points
Explanation:
cool question
How are plants important in maintains oxygen levels
Answers
they make oxygen and so we don't die from too much oxygen
What is the animal that looks like a squirrel, but glides. AKA, i know
Answers
Answer:
sugar glider
Explanation:
Answer:
either the obvious answer: flying squirrel
or slightly less obvious: sugar glider
Why are invasive species dangerous to the environment?
A)They pollute the environment.
B)They are always predators.
C)They threaten biodiversity.
D)They bring abiotic factors.
Answers
Answer:
C
Explanation:
They threaten the other animals. They can take their food, homes, and they don't have natural predators.
Invasive species are dangerous to the environment as they threaten the biodiversity. Thus, the correct option is C.
Invasive species are those imported species that are able to thrive rapidly in another foreign area by adapting and reproducing quickly.
Invasive species of plants and animals lead to an increase in the competition for survival, which results in decrease in the population of the native species.
The invasive species also affect the food web that is existing in the particular ecosystem, because of which other all organisms which are part of the food web are affected. They outcompete the native species for food,
Thus, biodiversity is threatened due to the invasive species.
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What question did Charles Darwin attempt to answer?
A. Where is genetic material stored in the cell?
B. How many offspring can an organism have?
C. Why do different organisms live in different places?
D. Are an offspring's traits similar to those of its parents?
Answers
Answer:
The correct answer is C. Why do organisms in different places have different traits?
Explanation:
Charles Darwin was a naturalist, biologist, and geologist from England and known for his theory of evolution. According to the theory, he observed different types of species of organisms such as birds, plants and fossils all over the world and found similarities in the characteristics.
He suggested that there were variations in species on the basis of specific geological locations. On the basis of these observations, he proposed that all species of organisms are come from the same ancestor but shows the differences due to the response to the condition of their habitat or location
Answer: C <3
Explanation:
Which statement best describes a portion of the molecule represented below?
a. It consists of many ribose sugars
b. It unites with amino acids in the cytoplasm
c. It contains uracil, which functions in protein synthesis
d. It consists of alternating phosphates groups and deoxyribose molecules
Answers
Answer:
d. It consists of alternating phosphates groups and deoxyribose molecules
Explanation:
The statement above best describes a portion of the molecule that is represented here.
Actually, the molecule represented here is the Deoxyribonucleic acid (DNA). The molecule is composed of two polynucleotide. The DNA carries genetic properties that lead to growth, development, reproduction and functioning of organisms. The phosphate group and deoxyribose molecule are found attached to the DNA. The phosphate group is also found in RNA and in ATP. The deoxyribose is known to be a five-carbon sugar molecule which helps to form the phosphate backbone of DNA molecules.
The given molecule is consists of alternating deoxyribose molecules and phosphates groups.
DNA:
It is the biomolecule that is made up of nucleotide polymers. Nucleotide are made up deoxiribose sugar, phosphate, and nitrogenous bases.
In a DNA strand one nucleotide link with another by the phosphodiester bond in which 3' OH of pentose sugar bond with 5' OH of phosphate.
Therefore, the given molecule is consists of alternating deoxyribose molecules and phosphates groups.
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What changes an object's speed and direction? *
A. Friction
B. Acceleration
C. Gravity
D. Inertia
Answers
Answer:
C
Explanation:
A change in speed is a change in velocity – so, a change in speed is an example of acceleration! Acceleration may be positive or negative. Negative acceleration is sometimes called deceleration. Force – a push or pull When a force acts on an object; it may change the object’s acceleration (speed, direction, or both).
Why is some amount of air is left inside in your lungs after inhalation
Answers
Answer: Residual volume (RV) is the volume of air remaining in the lungs after maximum forceful expiration. In other words, it is the volume of air that cannot be expelled, thus causing the alveoli to remain open at all times. The residual volume remains unchanged regardless of the lung volume at which expiration was started. The residual volume (RV) is the amount of air that is left after expiratory reserve volume is exhaled. The lungs are never completely empty: There is always some air left in the lungs after a maximal exhalation.
So your answer will be Residual volume...
Hope this helps........ Stay safe and have a Merry Christmas!!!!!!!!! :D
It is left because exhaling will never remove all air from your lungs, if it did your body would shut down due to lack of oxygen to all organs. It distributed the atoms throughout the body.
The digestion of ___ takes place in the stomach by the actions of enzymes operating at low pH. This digestion continues in the small intestine and the large molecules are broken down into ___.
Answers
Answer:
food minerals
Hydrotropism
Stimulus = ___________ Response = __________
A sunlight, roots grow downwards
B water, roots grow towards source of water
C plant leaves move away from touch, plant stem grows towards light
D Plant stem grows upward, plant roots grow downward
Answers
Answer:
a,d
Explanation:
Answer:
c
Explanation:
plant leaves move away from touch,plant stem grows towards light
A square jaw is recessive to a round jaw (dominant), It is possible for two parents with a square jaw to have a child with a round jaw? Why or Why not?
Answers
x x
x xx xx
x xx xx
would be the possible genotypes for the offspring
Which process produces a greater number of offspring? A. Chromosome duplication. B. Asexual reproduction. C. Gamete formation. D. Sexual reproduction.
Answers
Answer:
Sexual reprodution! wheres my cookie?
Explanation: its right i think
Answer:
the answer is C
Explanation:
If humans accidentally release an herbicide, a chemical that kills plants, into the ponds, what impact would this have on the amounts of carbon the ponds could remove from the surrounding environment?
A.The amounts of carbon that the ponds could remove would decrease because there are less plants to cycle matter.
B. The amounts of carbon that the ponds could remove would increase because there is more area to cycle matter.
C. The amounts of carbon that the ponds could remove would increase because the plants decompose underwater.
D. The amounts of carbon that the ponds could remove would decrease because the plants retain strong roots.
Answers
what is a primary role of decomposers in ecosystem
Answers
Answer:
to decompose organic matter
Explanation:
Answer:
Decomposers feed on dead things: dead plant materials such as leaf litter and wood, animal carcasses, and feces. They perform a valuable service as Earth's cleanup crew. Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere.
Compare and contrast the disposal of waste via composting and via recycling. What are the
pros and cons of each type?
Answers
Answer: Commercial Trash Management, Consulting, Cost Reduction and Zero Waste Programs. Compliance, training, recycle and compost program implementation, waste equipment.
Explanation:
Which TWO types of rock are formed as particles get pushed closer together?
A. Metamorphic
B. Extrusive igneous
C. Intrusive igneous
D. Sedimentary
Answers
Answer:
Sedimentary rock? Because when sediments get pressed together
And then turn into a rock
Which structure is correctly paired with its function? (1) testis — produces nutrients for the offspring (2) placenta — allows nutrients to diffuse from the mother to the embryo (3) uterus — produces testosterone used in egg production (4) ovary — provides a place for the internal development of the embryo
Answers
Answer:
(2) the placenta allows nutrients to diffuse from the mother to the embryo.
Explanation:
The placenta is a shared organ between the mother and the embryo. It diffuses the necessary nutrients from the mother to the future baby and the residues from this one to the mother, so that she can expel them. The placenta separates the mothers and the embryo blood, but it allows the diffusion of said nutrients and wastes through especial parts of the placenta with thin walls.
What is the direct cause of most earthquakes?
O Gravitational pull on bedrock by the moon
O deposition of sediment in lakes and oceans
O movement of bedrock along a fault line
O heat exchange betwęen the crust and the atmosphere
Answers
Answer:
Pretty sure it's C or B? Most likely C.
The direct cause of most earthquakes is the movement of bedrock along a fault line. Earthquakes occur when energy stored in the Earth's crust is released suddenly, causing the ground to shake. Hence option D is correct.
What is an earthquake?An earthquake is a sudden and rapid shaking of the Earth's crust caused by the breaking and shifting of rock beneath the Earth's surface. The Earth's crust is made up of tectonic plates that constantly move and interact with each other.
When these plates move against each other, they create pressure that builds up over time until the rock breaks, causing an earthquake.
This energy is released when two blocks of rock, called tectonic plates, move relative to each other along a fault.
The blocks may become stuck, and as the pressure builds up, they may suddenly slip, releasing energy in the form of seismic waves that cause the ground to shake.
The intensity and magnitude of an earthquake depend on the amount of energy released and the distance from the epicenter.
While other factors such as volcanic activity, landslides, or human activities can also cause earthquakes, movement along a fault line remains the primary cause.
Hence option D is correct.
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Are eukaryotes more closely related to bacteria or to archaea? Explain.
Answers
Hello!
The Answer Is: Bacteria and Archaea are comprised exclusively of microorganisms; plants, mammals, and microorganisms such as fungi and protists are contained in the Eukarya. Because of their lack of a nucleus, the Bacteria and Archaea were grouped together and called Prokaryotes, but the Archaea are more closely connected to the Eukaryotes than to the Bacteria. The cell walls of bacteria contain a compound called peptidoglycan, while the cell walls of archaea do not. Archaea and bacteria also vary because the composition of the cell membranes of archaea is peculiar and does not contain the same lipids, or fats, present in other species' cell membranes.Thank you for asking this question!
It would be greatly appreciated if you thanked me and marked me as the brainliest!
Have an amazing day.
What is the importance of cell membranes to supporting life?
Answers
Answer:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. And that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell. I hope this helps you :)
Helpppp
In the lytic cycle, how does the virus cause
the host cell to die?
By taking over the bacterial cell and making it produce viral DNA
and protein.
By becoming part of the host DNA.
By damaging the cell membrane as it injects viral DNA into the
host celL.
Answers
Answer:
A
Explanation:
A virus, or phage, will go into a cell and inject instructions for it to start reproducing more viruses. Once the cell is full of viruses, they trigger the cell's 'self destruct' and burst out to go to other cells and rapidly reproduce exponintially.
why are plant cells undergoing cell division do not have a vacuole? Please answer this question within 1-2 hour/s
Answers
Answer:
because they can
Explanation:
which combination of alleles could be produced in a gamete of an individual that has the genotype AaBbcc? A) abc B) AB C) Aa D) ABC
Answers
Answer:b. AB
Explanation:
a single strand of DNA helix has the code CGCTAA. which would be the complementary code on the other strand of helix
Answers
Answer:
The other side would be GCGATT
Explanation:
Adenine (A), cytosine (C), guanine (G), or thymine (T).
A (adenine) always pairs with T (thymine)
C ( cytosine) always pairs with G (guanine)
Hope this helps.
Sorry if it doesn't.
Coral needs sunlight to grow. True or false identify if it is false.
Answers
Answer:
Yes ,corals depend on the zooxanthellae (algae) that grow inside of them for oxygen and other things, and since these algae needs sunlight to survive, corals also need sunlight to survive.
Answer:
True
Explanation:
Corals need to grow in shallow water where sunlight can reach them. Corals depend on the zooxanthellae (algae) that grow inside of them for oxygen and other things, and since these algae needs sunlight to survive, corals also need sunlight to survive.
Hope this helps ya!
The Appalachian Mountains were formed about 500-400 million years ago. What has caused them to change so much over time
Answers
Answer:
There are many factors that go into the changes made to the Appalachian Mts.; you've got wind erosion, water erosion from rain/snow melting, and tectonic plate movements that can either cause the mountains to grow or to shrink.