How do scientists know dark matter exists? It gives off dark energy.

It causes temperature
increases in areas where it exists.

it causes a greater red shift than ordinary matter.

It creates gravitational effects that can be measured.

Which of the following is an example of competition that could be found in a forest? question 14 options: deer eat berries and their droppings seed new areas creating more berry bushes two fox populations utilize the same rabbit population as their main food source two hawk populations utilize the same scorpion population as their main food source lack of sunlight due to changes in the seasons restricts the growth of certain plants

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.