Answer:
The correct option is D
Explanation:
A male sperm needs a x chromosome and y chromosome , whereas a female sperm needs 2 x chromosomes , Thus both genders needing x chromosome
Answer:
No metabolism occur and decrease oxygen consumption.
Explanation:
There is adverse effect of chemical on metabolism and oxygen consumption of the treated seedlings because NADH is very important because it maintains the hydrogen pumping that produces ATP molecules. If NADH is oxidized to NAD, then the metabolism did not occur in the seedlings and due to no metabolism, oxygen consumption is also greatly affected.
Answer:
The third diagram shows Refraction of waves.
Explanation:
Refraction is a phenomenon, which occurs in a wave when it travels from one medium to another medium, and during Refraction there is slight or greater change in direction of the wave.
hence, the wave will pass through the surface and displaces from its actual path.
that's why the most appropriate diagram showing Refraction is third one ( c ) .
I believe the universe is 13.8 billion years old. Possibly longer, or possibly shorter. Correct me if I'm wrong.
Photsynthesis to make food
