Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that
A) arthropods evolved before vertebrates did.
B) extant terrestrial arthropods are better adapted to terrestrial life than are extant terrestrial vertebrates.
C) ancestral arthropods must have been poorly adapted to aquatic life, and thus experienced a selective pressure to invade land.
D) vertebrates evolved from arthropods.
E) arthropods have had more time to coevolve with land plants than have vertebrates.
These two desert arthropods, a scorpion and a cicada, have evolved very different approaches to livi
The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old.
The age-related increase in spirituality is different for two cohorts born seven years apart. The ...
Climate change occurs over millions of years
Average Years of Schooling versus GDP per Capita
Generalized life cycle for land plants