What describes how a large host cell and ingested bacteria could easily become dependent On one another for survival resulting in a permanent relationship

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.