1. humans are part of complex ecosystems. describe a few components of
the ecosystem in which you live. in your
• define abiotic and biotic factors (1)
. give an example of a biotic factor in your ecosystem (1)
• give an example of an abiotic factor in your ecosystem (1)

Give the biological term for: structures that display characteristics of living organisms only within living cells

All vaccination should(n’t) be mandatory! 1.at least 5 sentences explaining 2.why? 3.in the end summarize the sentence

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.