Centrales

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References

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Hemp (Cannabis sativa).

9 Mind-Altering Plants

Fish. Lionfish. Lion-fish. Turkey fish. Fire-fish. Red lionfish. Pterois volitans. Venomous fin spines. Coral reefs. Underwater. Ocean. Red lionfish swims by seaweed.

10 of the World’s Most Dangerous Fish

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

Easter Procession of Maria Santisima del Sacromonte in Granada, Spain. This statue is known as Virgen de los Gitanos or The Virgin of the Gypsies.

What is Holy Week?

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)

Cruel and Unusual Punishments: 15 Types of Torture

Illustration for Demystified "How Dangerous is Quicksand"

How Deadly Is Quicksand?

Centrales

algae order

Also known as: centric

Learn about this topic in these articles:

diatoms

In diatom
…and shape: the round nonmotile Centrales have radial markings; the elongated Pennales, which move with a gliding motion, have pinnate (featherlike) markings.
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