yes, over time pieces of an animals life cycle can change and adapt to help them survive in different environments that doesn't happen overnight. In a frogs life cycle they develop into a frog from an egg. frogs have adapted to become what they are today and if I where to make a prediction it would be that frogs at one point lived solely in water based on the way they grow and develop in there life cycle. having a life cycle means there's room for improvement and tiny adjustments can be Made as a defense mechanism that develops over the course of many froggy life cycles.
The probability that an F1 plant will be tall when it is cross with a heterozygous tall pea plant when crossed with a short plant is 50%. This is because there is only one tall and one short. Therefore, the likelihood is kin to a coin flip.
Explanation: Directional selection occurs when one end of the bell curve has a better fit than the other end. The end that has preferable traits in relation to the environment won't always be the same. The environment can change, and then the opposite end of the bell curve might become preferable.
