Ans.
Gymnosperms are those plants that do not have fruits and flowers and they show naked or unenclosed seeds, while angiosperms are flower-bearing plants, having flowers, and seeds enclosed in an ovary that develops from fruit.
Both gymnosperms and angiosperms show sporophyte generation and gametophyte generation, known as alternation of generation.
Both gymnosperms and angiosperms show pollination, and fertilization of egg cell with sperm to form zygote that develops into mature plant.
Answer:
d.smooth muscle
Explanation:
Blood vessels contain only smooth muscle cells. These muscle cells reside within the tunica media along with elastic fibers and connective tissue
Vegetables,Fruits,Nuts, ETC.
Genetic variation in a population allows for phenotypic variation, meaning that different traits exist in the same population. When the environment changes, the members of the population are tested by natural selection with regards to how well adapted their specific traits are to the new environment. If the traits they have do not suit their environment, this results in reduced survival and fitness, leading to less of that trait in the population. However, if the traits they have are adapted to the environment, they become naturally selected for with better survivability and fitness (leading to a higher frequency of that trait in the population). Thus, evolution has occurred.