All categories

2 years ago

Help me in this question please thank u, it's urgent

Biology

1 answer:

Andre45 [30]2 years ago

5 0

Answer:

1 - R

2 - r

3 - R

4 - RR

5 - Rr

6 - r

7 - Rr

8 - rr

Explanation: hope this helps

You might be interested in

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

4 0

3 years ago

Enzymes - Please help!!

kicyunya [14]

it means ur diff lollllll

Explanation:

7 0

2 years ago

PLZ HELP ILL GIVE 5 PTS AND BRAINLIST IF ITS RIGHT!!!

ale4655 [162]

Explanation:

water

please mark me as brianlyest

8 0

2 years ago

Picture below - I really need help

saul85 [17]

For the second wig its decreasing

5 0

2 years ago

What are some risks of genetic engineering on humans?

nekit [7.7K]

Certain changes in a plant or animal could cause unpredicted allergic reactions in some people which, in its original form, did not occur. Other changes could make an organism toxic to humans or other organisms. These concerns range from ethical issues to a lack of knowledge on the effects genetic engineering may have.

6 0

3 years ago