The longest-living trees in the world are a species of
a. angiosperm
b. cycad
c. gymnosperm
d. fern

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

Could someone me with number one you

Speed is the ratio of the distance of an object moves to