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UNO [17]
3 years ago
15

Who does not experience critical periods? humans animals both neither

Chemistry
2 answers:
Alexxx [7]3 years ago
7 0

Answer:

The correct answer is neither.

Explanation:

A critical period in developmental biology refers to a stage of maturation in the organism's lifespan during which the nervous system is mainly vulnerable to some kinds of environmental stimuli. If due to certain causes, the organism does not acquire the suitable stimulus at this critical period, to acquire a given trait or skill, it may become tough, eventually less successful, or even not possible, to attain some of the functions in the later stages of the life. The functions, which are essential for the survival of an organism, like vision, are mainly likely to form at these critical periods.

Rashid [163]3 years ago
4 0
I would go with neither

Hope this helps
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Us
MrRissso [65]

Answer:

24.9%

Explanation:

According to this question, mole fraction of NaCl in an aqueous solution is 0.0927. This means that the mole percent of NaCl in the solution is:

0.0927 × 100 = 9.27%

Let's assume that the solution contains water (solvent) + NaCl (solute), hence, the mole fraction of water will be;

100% - 9.27% = 90.73%

THEREFORE, it can be said that, NaCl contains 0.0927moles while H2O contains 9.073moles

N.B: mole = mass/molar mass

Given the Molar Mass

NaCl: 58.44 g/mol

H2O: 18.016 g/mol

For NaCl;

0.0927 = mass/58.44

mass = 0.0927 × 58.44

5.42g

For H2O;

9.073 = mass/18.016

mass = 9.073 × 18.016

= 16.35g

Total mass of solution = 16.35g + 5.42g = 21.77g

Mass percent of NaCl = mass of NaCl/total mass × 100

% mass of NaCl = 5.42g/21.77g × 100

= 0.249 × 100

= 24.9%

5 0
3 years ago
Read 2 more answers
If sodium arsenite is Na3AsO3, the formula for calcium arsenite would be
lara31 [8.8K]

Answer:

Ca₃(AsO₃)₂

Explanation:

Sodium arsenite, with the chemical formula Na₃AsO₃, is formed  by the cation Na⁺ and the anion AsO₃³⁻. For the molecule to be neutral, 3 cations Na⁺ and 1 anion AsO₃³⁻ are required.

Calcium arsenite would be formed by the cation Ca²⁺ and the anion AsO₃³⁻. For the molecule to be neutral, we require 3 cations Ca²⁺ and 2 anions AsO₃³⁻. The resulting chemical formula is Ca₃(AsO₃)₂.

4 0
3 years ago
PLEASE HELP MEEEE ASAP 50 PTS
belka [17]

Answer: The answerer is CH4 + 2O2 → CO2 + 2H2O

Explanation: }

7 0
2 years ago
Read 2 more answers
How to do thw part where it says list the elements to period 2<br>and the metals
marissa [1.9K]
A)2nd period - Li, Be, B,C,N,O,F,Ne
b)Metalls of the 2nd period are Li,Be
7 0
3 years ago
in this punnett square what is the ratio of homozgous to heterozygous offspring? in the punnett square what percentage of the of
Elina [12.6K]
Idk if this is a ratio but I know the percentage will be 3/4 Tt and 1/4 tt so Tt is 75% tt is 25%
8 0
3 years ago
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