Which statement best describes a situation where competition occurs in an ecosystem?
(1)a deer outruns an attacking wolf.
(2)a deer, during the winter, consumes tree bark.
(3)a deer and a rabbit consume grass in a field.
(4)a deer and a rabbit are both startled by a hawk flying overhead.

Option C

Explanation:

A competition with in an ecosystem usually occurs among the species for limited resources such as food, habitat, etc.

Of all the given options, Option C clearly indicates that both the deer and rabbit depend on the same resource i.e grass for feeding themselves. Over a time period when production of grass would reduce, there can be a competition between these two species for food.  

Hence, option C is correct

measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in tiny world. record your observations and test measurements in the lab report below. youwill submit your completed report.name and title: lyric lawton, mr.herbert, 10/13/17, physical properties lab. objective(s): i need to parvus build his house out of the right material, so he will stay cool in the mountains.hypothesis: if we use wood to build the roof of the house, then the temperature inside the house will remain cooler.if we use clay brick to build the walls and floors of the house, then the temperature inside the house will remain cooler.if we use aluminium to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate.if we use iron to construct the latches on the windows and doors, then the magnetism will keep the latches secure.

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive