science

Question 1

the series of predictable changes that occur in a community over time is called

Answer 1

succession

Question 2

___________ is the series of changes that occur in an area where no soil or organisms exist

Answer 2

primary succession

Question 3

what is the order of who things arrive in a ecosystem

Answer 3

lichen, mosses, grass, flowers, and trees.

Question 4

what are the first species to populate an area called

Answer 4

pioneer species

Question 5

what would happen to a farm that shuts down and water flows back into the land.

Answer 5

Native organisms would recolonize

Question 6

how would an ecosystem change as a result of a flood

Answer 6

Everything dies and causes secondary succession

Question 7

after a hurricane affect an island ecosystem will secondary succession or primary succession take place.

Answer 7

Secondary

Question 8

Name 2 natural disruptions that can affect an ecosystem

Answer 8

earthquakes and hurricanes

Question 9

what are four human activities that can disrupt an ecosystem

Answer 9

pollution,mining ,oil drilling,housing

Question 10

true or false primary succession usually occurs more rapidly that secondary succession

Answer 10

false

Question 10

when changes to physical and biological components occur _________________ most populations in the ecosystem do not survive

Answer 10

rapidly

Question 12

true or false most organisms will reappear at some point after fires because of adaptions

Answer 12

true

Question 13

true or false primary succession is a natural event and secondary succession is always due to human activity

Answer 13

true

Question 14

what can trigger primary succession

Answer 14

volcano

Question 15

what are two organisms that form lichen

Answer 15

algae and fungus

Question 16

true or false the longleaf pine tree is typically destroyed by wildfires which is why there are so few left in the south

Answer 16

false

Question 17

true or false Oak trees outcompete long leaf pines for sunlight because the are more wide spreading

Answer 17

true