Which two types of cells are involved in fertilization?
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- Gametes are an organism's reproductive cells. The female gametes are called ova or egg cells, and the male gametes are called sperm.
- During fertilisation, the gametes (an egg and sperm) fuse to form a zygote.
Answer:
Answer is in image see it..
Answer:
dialect.
Explanation:
if you look at parents and their children. you see their eyes and you see the child's eyes. they could have the same eyes. if you look at both noses you can see that one is similar to the other one. hair texture, lets say a mom has thin hair, and the father also has thin hair. the child more likely will have thin hair as well. you only inhertit dialect when your around that person for a long time.
The relative humidity of the air is the ratio of the actual amount of moisture in the air to the fully saturated amount. There for the answer is 33.1% or 3.3g/kg
Answer:
At the burner temp. and pressure, 18.85 litres of air is needed to completely combust each gram of propane
Explanation:
The combustion stoichiometry is as follows:
C₃H₈ + 5O₂ = 4 H₂O + 3CO₂ The molecular weights (g/mol) are:
MW 44 5x32 4x18 3x44
So each gram of propane is 1/44 = 0.02272 mol propane
and will need 5 x 0.02272 = 0.1136 mol oxygen
At 0.21 mol fraction oxygen in air, 0.1136 / 0.21 = 0.54 mol air is needed to burn the propane.
At the low pressure in the burner we can use the Ideal Gas Law
PV=nRT, or V = nRT/P
P = 1.1 x 101325 Pa = 111457 Pa
T = 195°C + 273 = 468 K
R = 8.314
and we calculated n = number of moles air = 0.54 mol
So V m³ = 0.54 x 8.314 x 468 / 111457 = 0.0188 m³ = 18.85 litres air.
