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Stolb23 [73]
3 years ago
10

Owls do most of their hunting during the night and they have specialized cells in their eyes that provide good night vision. The

y can see some color, but their color vision is not highly developed. Which of these would best describe the specialized cells in an owl's eyes?
A) They have an equal number of cones and rods.
B)They do not have any rods or cones in their eyes.
C)They have a large number of rods and small number of cones.
D)They have a large number of cones and small number of rods.
Chemistry
2 answers:
KiRa [710]3 years ago
7 0
C) They have a large number of rods and small number of cones.
oee [108]3 years ago
7 0

C) They have a large number of rods and small number of cones.

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2 years ago
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A positively charged substance is brought near the ion. What will most likely happen and why
d1i1m1o1n [39]

<u>Answer:</u> It repels positive ion and attracts negative ion.

<u>Explanation:</u>

There are 2 types of ions:

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2. Anions: These ions are negatively charged ions which are formed when a substance gains electrons.

It is known that, like charges repel each other and unlike charges attract each other.

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4 0
3 years ago
In the summer of 2016, the city of Columbus Dublin Road Water Treatment plan exceeded the regulatory level of nitrate, which is
Verizon [17]

Answer:

a) 10 mg NO_3^-/L

b) 1.61*10^{-4}mol NO_3^-/L

c) 2.26 mg N/L

Carbon: C=26.64 \frac{mg C}{L}

Explanation:

<u>Nitrate</u>

First of all, is important to know that:

1 ppm=1 mg/L

a) 10 ppm of nitrate (NO_3^-) is equal to 10 mg NO_3^-/L

b) The molecular weight of nitrate is 62 g NO_3^-/mol

10 mg NO_3^-/L=0.01 g NO_3^-/L

\frac{0.01 g NO_3^-/L}{62 g NO_3^-/mol}=1.61*10^{-4} mol NO_3^-/L

c) Nitrate has 14 mg of N per 62 mg of NO3

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<u>Carbon</u>

Carbonate has 12 mg of C per 60 mg of CO_3^{-2}

Bicarbonate has 12 mg of C per 61 mg of HCO_3^{-}

C=24 \frac{mg CO_3^{-2}}{L}*\frac{12 mg C}{60 mg CO_3^{-2}}+111 \frac{mg HCO_3^{-}}{L}*\frac{12 mg C}{61 mg HCO_3^{-}}

C=26.64 \frac{mg C}{L}

8 0
3 years ago
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Luda [366]
A^2 + b^ = c^2

peak is 12,740, that's the highest point. the climber goes down so the leg is 200 then solve
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3 years ago
Why blood is separated into different parts​
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Answer:

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