Plant-based organic matter that is compressed under high pressure to form solid carbon structures is known as

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Drag the correct tiles to the image. not all tiles will be used. the diagram is a schematic representation of the electron transport mechanism in mitochondria. label the diagram to complete the model.

Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.