The first picture shows a cross-section of ground with four different sediment layers. The red, purple, yellow, and black colors represent four different types of sediments. Rainwater (the blue circles) has fallen on the ground and has moved through some of the layers.
The second picture shows close-up views of four types of sediments: gravel, sand, silt, and clay.
Based on the pictures, what type of sediment is represented by the black layer?

Explain your answer.

Fruit bats in central america eat bananas and other fruits. banana plants rely on bats for pollination. what would be the most likely consequence on the banana crop if fruit bats were eliminated from the area? the banana crop would increase because bats would stop eating the crops. the banana crop would decrease because bats would no longer pollinate the crops. the banana crop would remain constant because bees would replace the bats. the banana crop would remain constant because the plants would adapt using asexual reproduction.

Which of the following describes how binary fission and mitosis are similar? a)they are both used for growth or repair b)they both break down membrane-bound nuclei c)both invoke the replication of a single stand of dna d)both replicate genetic material

When is your breathing likely to speed up? a. when your white blood cells increase b. when your cells need more energy c. when your heart cells need more carbon dioxide d. when your blood cells have too much oxygen