Biology, 06.10.2021 21:10 wolfyrainECT
The pictures show two different ferns that lived millions of years apart. The early fern
is extinct, but is drawn based on fossil evidence. Scientific data reveals that the early
fern is an ancestor of the modern fern.
Early Fern
Modern Fern
Which statement best explains why the fern changed over time?
O Humans cut ferns to be decorations, causing each generation to be smaller in size.
O As the Sun aged, its energy output decreased and limited the size ferns could grow.
O As flowering plants emerged, less energy was left for ferns and the growth of ferns was stunted.
The changing environment caused unfit plants to die and better adapted plants were smaller in size.
Answers: 3
Biology, 21.06.2019 22:00, queenpanda365
Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.
Answers: 3
Biology, 22.06.2019 02:00, Totototono
The leopard frog and the pickerel frog are two closely related species. in areas where their ranges overlap, the frogs will remain separate species if they
Answers: 2
Biology, 22.06.2019 10:00, bobbyhsu3751
Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area
Answers: 1
The pictures show two different ferns that lived millions of years apart. The early fern
is extinc...