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2 years ago

One reason farmers often choose genetically modified crops over non-genetically modified crops because genetically

Biology

2 answers:

Bingel [31]2 years ago

8 0

Answer:

B hopefully it’s right

Explanation:

mylen [45]2 years ago

3 0

Answer:

Explanation:

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An owl has good night vision because its eyes can detect a light intensity as small as 5.0 × 10-13 W/m2. What is the minimum num

Lady bird [3.3K]

Answer:

Thus, the minimum number of photons per second is 77.34

Explanation:

Light intensity, $I_{min}$ = $5\times 10^{-13} W/m^{2}$

Pupil has a diameter, d = 8.5 mm

= 8.5 x $10^{-3}$ m

Radius of the eye, r = 4.25 x $10^{-3}$ m

∴ Area of the eye, A = $\pi .r^{2}$

= $3.14\times \left ( 4.25\times 10^{-3} \right )^{2}$

= $5.6\times 10^{-5} m^{2}$

Let $P_{min}$ be the minimum number of photons.

Therefore, $P_{min}$ = $I_{min}$ x A

= $5\times 10^{-13}$ x $5.6\times 10^{-5}$

= $2.8\times 10^{-17}$ W

Thus the minimum number of photons is given by

$N_{min}=P_{min}/E$

where E = $hc/\lambda$

= $\left (6.63\times 10^{-34}\times 3\times 10^{8} \right )/548\times 10^{-9}$

= $3.62\times 10^{-19} J$

Therefore, $N_{min}$ = $\frac{2.8\times 10^{-17}}{3.62\times 10^{-19}}$

= 77.34 photons per second

Thus, the minimum number of photons per second is 77.34

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3 years ago

Which term means having only one set of chromosomes?

Salsk061 [2.6K]

One set of chromosomes would be Haploid

4 0

2 years ago

Carbon that gets into the soil through (animal death or defection) can get buried and eventually (after a really long time) turn

iragen [17]

C the answer is c or maybe it is B

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3 years ago

An obligate anaerobe is an organism that would die in an oxygenated environment. What could be assumed about these organisms?

makkiz [27]

The correct option is C.
Obligate anaerobes are micro organisms that are poisoned and killed when exposed to the normal atmospheric oxygen concentration. These organisms can only survive in the absences of oxygen, therefore, they carry out only anaerobic form of respiration in order to obtain the energy that they need. <span />

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2 years ago

Read 2 more answers

Describe the biotic and abiotic features of the temperate deciduous forests

frez [133]

Living things in the environment such as plants, animals, and bacteria are biotic factors. Biotic factors also include once-living parts such as dead leaves on the forest floor. Abiotic factors are nonliving aspects of the environment such as sunlight, temperature and water. One important abiotic factor is soil.

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2 years ago