Which statements are part of the theory of endosymbiosis? Select all that apply.

Early prokaryotes were able to carry out aerobic respiration and were engulfed by eukaryotic cells.
Early anaerobic prokaryotes engulfed aerobic prokaryotes, which evolved into mitochondria.
The first cells that appeared on Earth were eukaryotic and were engulfed by prokaryotic cells.
Some early eukaryotic cells engulfed photosynthetic prokaryotes, which evolved into chloroplasts.

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems