Solar Nebula
Solar Nebula is based on a LAW of physics called “the conservation of angular momentum”
Answer: b. Nitrogen; Oxygen
Explanation:
The air is a mixture of gases in the following percentage;
Nitrogen; 78%
Oxygen : 21%
Carbon(IV)Oxide : 0.03%
Argon : 0.9%
Others ( minute traces of Neon, Helium, Methane e.t.c) : 0.17%
Answer:
Visible light
Explanation:
Photosynthesis is a unique phenomenon in which plants use sunlight energy, which is a type of electromagnetic radiation, to manufacture their food. During this process, certain pigments in the leaves of plants called CHLOROPHYLL absorbs the blue and red wavelengths of light ranging from 400nm - 700nm.
However, these wavelengths of light (blue and red) that are used during the photosynthetic process are found in the VISIBLE LIGHT PORTION of the electromagnetic spectrum. The visible light is the only part that can be made use of by photosynthetic pigments.
Answer:
1/10^4
Explanation:
Given that 500 colonies were observed on ampicillin plate after transformation. 1 colony represents 1 transformed bacteria because each colony is assumed to have grown from one single bacteria. Hence, 500 bacteria had transformed from 5*10^6 bacteria.
Fraction of cells that got transformed = (Number of cells that were transformed/ Number of total cells)
= 500/(5*10^6)
= 1/10^4
Hence, 1/10^4 cells were transformed in experiment.
Answer: An ovarian follicle is a roughly spheroid cellular aggregation set found in the ovaries. It secretes hormones that influence stages of the menstrual cycle. Women begin puberty with about 400,000 follicles, each with the potential to release an egg cell (ovum) at ovulation for fertilization.
Explanation:
