1. The wavelength is the ratio of the wave's speed to its frequency in hertz or 1/s. This is shown below,
λ = s / f = (320 m/s) / (300 1/s) = 1.07 m
The wavelength is approximately 1.07 m.
2. The frequency is the ratio between speed and the wavelength,
f = (330 m/s) / 0.45 m = 733.33 hertz
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Answer:
The correct answer is vertebral column and cranium
Explanation:
Vertebrates are the animals that are characterized by having backbone or vertebral column and apart from the vertebral column they also have a bony skull. Skull and vertebral column protect the brain and spinal cord in vertebrates.
Vertebrata is a subphylum under phylum Chordata and clade Craniata so vertebrates have both cranium and vertebral column. In vertebrates, notochord is present in the embryonic stage and is replaced by vertebral column in adults.
Animals that comes under the Vertebrata are fishes, mammals, reptiles, amphibians, and birds. So the correct answer is B and C.
Answer:
The best answer is option E.
Explanation:
Pseudomonas are gram-negative bacteria which is present almost everywhere air, soil, water and even indoors. These gammaproteobacteria are also present in some of the healthy people.
Pseudomonas is resistance to many antimicrobials and disinfectants. These bacteria are generally harmless but some opportunistic species like P. aeruginosa are infectious.
Thus, the correct answer is option E.
Answer:
decreases amount of energy necessary for reaction to proceed
Explanation:
they lower activation energies of the reactions they catalyse
Answer:
Absorb Energy
Explanation:
As the food breaks down in the human stomach the food breaks down and turns into energy for the body.
