Mutations can cause instant adaptations, while natural selection is the process by which adaptations occurs over a series of generations. Adaptations are changes or processes of changes by which an organism or species becomes better suited for its environment. A mutation is an alteration of the DNA sequence.
Answer:
D
Explanation:
The identity of an atom is based on the number of proton
Hydrologic cycle is the undertaking of water amongst the basins of atmosphere, land and ocean. Water from the ocean enters the atmosphere through evaporation. And the sun helps in the evaporation of water and transpiration form the plants. As soon as it is contained in the atmosphere, the water vapor collects more water vapor, thus forming the dark clouds. When all water vapor form the ocean is collected, the high pressure allows the water vapor to condense and form rain, thus condensation occurs. The soil in most lands collects water from rain and they are held by chemical forces and gravitational surface tension. Then the process is repeated.
Answer: Unconditional response
Explanation:
Sonya had leukemia since childhood and because of this she had to undergo chemotherapy for a numerous times.
The side effect of the chemotherapy is that she felt nausea for numerous times because of chemotherapy.
After a year of treatment even the waiting made her feel the same because of the unconditioned response by her brain.
This can be defined as an involuntary reaction which is produced by the brain in case of the similar conditions. This is a unconditional response produced due to unconditioned stimuli.
