All of the following were unique challenges that life on land presented to land plants, E O Lack of structural support O Loss of buoyancy provided by water O Increased predation from early mammalian herbivores

How does plant growth at elevated atmospheric carbon dioxide concentration affect the nutritional quality of plants? O A. It doesn't change ОВ.It decreases OC. Itincreases O D.It makes brussel sprouts taste like chocolate. QUESTION 13 Climate change can affect which of these plant characteristics? OA Changes in flowering time OB. Loss of synchrony with pollinators OC Increased competition from invasive plants OD.All of the answers QUESTION 14 Almost all of the water that plants take up i ed for what process? O A. Growth OB. Transpiration OC. The Greenhouse Effect OD. Photosynthesis QUESTION 15 What is the term for the internal positive pressure developed in plant cells that prevents wilting? OA. Negative pressure O B. Peer pressure OC. Air pressure OD.Turgor pressure

The important data to be recorded in this experiment will come from the observations of the increase in

Stomata likely evolved as a solution to which of the following land plant problems? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b C d e Threats from predators. Lack of nutrients. Lack of water. The pull of gravity. Excess UV radiation.

There is an evolutionary trend for more basal plants to be gametophyte dominant, but more derived plants to be sporophyte dominant. Suggest one reason why there might have been an evolutionary advantage to spending more time in the sporophyte generation.

A typical food chain in the San Joaquin Valley consists of plant roots >> gophers >> snakes. If a snake weighs 1.5 pounds, how many pounds of plant roots would there need to be to support that snake? (Type only the number--do not spell the number--and don't include the word "pounds")

If plants were able to respond in any possible way, what could plants have done to make productivity higher or at least less vulnerable over the past 400,000 year time period?

Discuss the role that  Carboniferous (Paleozoic) pteridophytes (ferns)  play in the global biosphere. (2 sentences minimum)