The adaptive structure and function of leaves and stems helps the plant Question 1 options: produce haploid gametes. produce diploid gametes. prevent wilting. create its own energy. Question 2 (5 points) Over time, plants developed structural adaptations of vascular systems and seeds in order to Question 2 options: carry out photosynthesis. produce haploid seeds. colonize land ecosystems. be more successful in water ecosystems. Question 3 (5 points) This category of plants does not have vascular tissue or seeds. Question 3 options: Angiosperms Mosses Ferns Gymnosperms Question 4 (5 points) This type of plant tissue is responsible for protecting the outside of the pant. Question 4 options: Endodermis Nodes Apical meristem Dermal Question 5 (5 points) Plant processes of capillary action, transpiration, and root pressure are the result of Question 5 options: unique properties of water. seasonal changes. leaf production. the water cycle.

the farther away the object is from the central star (the sun) it's gravitainal pull on the object is weaker when it is farther

explanation:

c. heat from the poles back down towards the equator.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.