<span>Forced expiratory volume is the percentage of the vital capacity that can be expelled in a specific period of time. This value is obtained by inspiring as much air as possible and then expelling the air from the lungs as quickly as possible. Individuals with decreased ability to expire typically exhibit decreased FEV values. Maximum voluntary ventilation is the greatest amount of air that can be taken into, and then expelled from, the lungs</span>
Answer:
Option A, all of the genes found within the ecosystem
Explanation:
Genetic diversity is very essential to maintain the health of the population of any species. It includes all forms of alleles with in a specific species to ensure variability. Variability is essential to allow evolution of species through mating where species with more desirable genes mate to produce healthy offspring. Sub groups with in a species can also varying set of genes thereby making a gene pool.
Hence, option A is correct
The average radius of a molecule of Iysozyme, an enzyme in tears, is 1430 pm.
The size of an element's nucleus and also the total number of electrons around it grow with an element's atomic number. The radius of an atom increases with increasing atomic number.
The calculation of conversion of radius is shown below:
It is known that, 1 meter is equal to 10¹² picometers.
We can use a conversion fraction to convert 1430 picometers to meters.
1430 pm × (1 m / 10¹² pm) = 1.430 × 10⁻⁹ m
1 meter is equal to 10⁹ nanometers.
Now, use a conversion fraction to convert 1.430 × 10⁻⁹ meters to nanometers.
1.430 × 10⁻⁹ m × (10⁹ nm/1 m) = 1.430 nm
Therefore, the radius of nanometers will be 1.430nm
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Answer:
D. atmospheric aerosols.
Explanation:
<em>Atmospheric aerosols are tiny particles that float in the air. These particles could be liquid or solid and are usually suspended primarily by direct emission into the atmosphere or secondarily by condensation process. </em>
Atmospheric aerosols have numerous effects on the biotic and abiotic factors of the environment. They alter air quality and impact human health in some cases, they can reduce atmospheric visibility, and they also reduce the amount of radiation that reaches the earth by scattering or reflecting some of the radiations from the sun back into space, leading to cooling of the atmosphere.
Answer:
C. They can grow to larger populations more quickly
Explanation:
Bacteria are the <u>key entities</u> of <u>biogeochemical cycle</u>s (Nitrogen, Carbon, Oxygen, etc.) on Earth. The strength of these cycles is typically achieved when they can multiply faster in a relatively <u>short time period</u>. If all bacteria on Earth start reproducing via sexual means only, then many of the biogeochemical cycles would take forever, thus <u>generating nutrients at a slower rate</u>. Since higher organisms (e.g. eukaryotes) depend on the abundant supply of nutrients, the overall life on Earth would be compromised to a larger extent in the absence of sufficient nutrients supply. Thus, it is <u>beneficial for all forms of life that bacteria reproduce mainly via asexual means</u>.
PS: A simple bacterium can produce millions of copies in 24 hours period.
