LS4.1 BIO1 Review

Front

What is the endosymbiotic theory?

Back

The endosymbiotic theory suggests that double-membrane organelles like mitochondria originated when larger eukaryotic cells engulfed smaller prokaryotic cells, leading to a symbiotic relationship.

Front

What is the origin of the outer membrane of mitochondria according to the endosymbiotic theory?

Back

The outer membrane of mitochondria originated from the plasma membrane of the eukaryotic host cell.

Front

Which fossil is considered the oldest in geological strata?

Back

The trilobite is often considered one of the oldest fossils found in geological strata.

Front

What does embryonic similarity in organisms suggest?

Back

Embryonic similarities in organisms may suggest they evolved from a common ancestor.

Front

What theory did Louis Pasteur's experiment disprove?

Back

Pasteur's experiment disproved the theory of spontaneous generation.

Front

What is spontaneous generation?

Back

Spontaneous generation is the discredited theory that living organisms can arise from non-living matter.

Front

What evidence does a fossil with a fin and digits provide?

Back

It provides evidence for the transition of animals from sea to land.

Front

What is biogenesis?

Back

Biogenesis is the principle that living organisms arise from pre-existing life, as opposed to spontaneous generation.

Front

What is the significance of homologous structures in evolution?

Back

Homologous structures indicate common ancestry among different species, showing how they have evolved from a shared ancestor.

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.