Darwin Found Fossil Remains of Several Extinct Species in South

question 19

Multiple Choice

Darwin found fossil remains of several extinct species in South America.He considered the fossils to be evidence that

• A)numerous catastrophic events had occurred.
• B)acquired characteristics are inherited.
• C)the species composition of the planet had changed over time.
• D)all life forms are immortal.
• E)horses and sloths were closely related.

Describe different leaf arrangements and identify them in various plant species.

Recognize the structural adaptations in leaves for photosynthesis and water conservation.

Explain the process of photosynthesis and the role of leaves as the main photosynthetic organ in plants.

Describe the significance of cuticle, guard cells, and other epidermal structures in plants.

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Definitions:

Host

An organism that harbors another organism, often providing nourishment and shelter to parasites.

Chlorophyte

Chlorophyte refers to green algae, a diverse group of photosynthetic organisms found in various aquatic environments, part of the eukaryotic kingdom Chlorophyta.

Seaweed

Multicellular algae that grow in marine or freshwater environments, often used as food or fertilizer.

Sea Lettuce

A common name for Ulva, a genus of edible green algae that grows in salty waters around the world.