In a hen house, the length of daylight is prolonged by using indoor lighting. the stimulus for egg laying is
(a) food
(b) warmth
(c) light
(d) amount of water.
The correct answer is option (c) light.
Light is found to have a significant effect on egg laying by hens in the hen houses or poultry. Photoperiod is the length of the time within a day to which the hens are exposed to sunlight or artificial source of light. Egg production is reduced if the light intensity and duration is reduced. A peak production of hens is observed with the photoperiod is lengthened or a longer photoperiod.
Natural day light exposure to hens results in the production of not more than 40 eggs. Whereas, a prolonged day light of 12- 14 hours by indoor lighting increases the number of eggs layed to around 60 eggs. Thus, the stimulus for egg laying is the light.
Thus, In a hen house, if the length of daylight is prolonged by using indoor lighting, the stimulus for egg laying is light.
Answer: Diploid cells contain two complete sets (2n) of chromosomes. Haploid cells have half the number of chromosomes (n) as diploid - i.e. a haploid cell contains only one complete set of chromosomes. Diploid cells reproduce by mitosis making daughter cells that are exact replicas.
Explanation:
Humans can live depending on certain circumstances of the water and energy level but realistically it’s not possible . Water concentration would be hard for us to take in , considering the amount of oxygen we have in and take in it wouldn’t last as much as a certain time being in the water. We would have to consider how deep we can live in , how much oxygen and energy level there is to be able to live in water.
Based on the data provided, Anthony will be safe because Anthony's ladder will make a 75. 522 degree angle.
<h3>What is the height of the wall?</h3>
The height of the wall is determined using trigonometric ratios.
Since the ladder must be within 1 degree of 76 degrees to be safe, we assume the maximum angle to be 77°.
Length of the ladder = 10 m
The ladder, the wall of building and the floor form a right-angled triangle.
Height of wall = 10 × sin 77°
Height of wall = 9.74 m
If Anthony places the ladder 2. 5 feet from the base of the building, angle A, it will make with the floor is calculatedas follows:
Cos A = 2.5/10
Cos A = 0.25
A = 75.522°
Therefore, Anthony will be safe because Anthony's ladder will make a 75. 522 degree angle.
Learn more about trigonometric ratios at: brainly.com/question/1201366
