Describe the evidence that supports that protists have evolved into multiple evolutionary lineages.
What will be an ideal response?
Some of the main evidence available today is DNA sequencing that points to multiple protist lineages. Protist lineages are very long and very old so it makes it difficult to determine the exact evolutionary lineages. The new DNA evidence has led scientists to classify protists and the other eukaryotes into six supergroups.
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The white chalk cliffs of Dover, England are composed mainly of the remains of ________
a. foraminiferans b. radiolarians c. dinoflagellates d. charophytes
(n) ____________________ stem cell gives rise to other specialized cell types. Fill in the blank(s) with the appropriate word(s)
The degree of mental retardation in a Down syndrome fetus is predictable. Indicate whether the statement is true or false
Which statement is NOT true about ferns?
Select one: a. The gametophyte stage lacks vascular tissue. b. The sporophyte stage lacks vascular tissue. c. Antheridia and archegonia develop on the prothallus of the gametophyte stage. d. Fertilization requires moisture for the sperm to swim to the egg within the archegonia. e. The sporophyte stage is the dominant generation.