1. leaves of a plant manage water movement in and out of the plant using guard cells stomata cuticle all of the above 2. ferns have roots, stems, and leaves just like seed plants. why are they classified separately? their leaves are compound and feathery. they produce cones to reproduce. their roots are only shallow rhizomes. they produce spores instead of seeds. 3. the first plants to grow in new environments are usually ferns and horsetails grasses liverworts and mosses mosses and ferns,

Which best explains how this maneuver unblock a person's airway?

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

What are 3 reasons that natural selection occurs