The Stramenopila are a very large and diverse group that all possess ________ at some point in their life cycle.
A. chloroplasts
B. a macronucleus
C. an exoskeleton
D. heterokont flagella
Answer: D
You might also like to view...
Refer to the figure above. Suppose new molecular analyses indicated that the phylum Annelida had diverged from the arthropod lineage after Onychophora and Tardigrada. What would this imply about protostome evolution?
1) Segmentation evolved only once within protostomes. 2) The annelid lineage gained and then lost the ability to molt. 3) The annelid lineage gained and then lost jointed limbs. A) 1, 2, and 3 B) 2 and 3 C) only 3 D) 1 and 2 E) 1 and 3
Estuaries in which river flow is strong and prevents the flow of seawater upstream are called:
a. fjords. b. salt-wedge estuaries. c. well-mixed estuaries. d. tectonic estuaries. e. drowned river valleys.
The process of introducing a needed, normal gene into human cells is called DNA mapping.
Answer the following statement true (T) or false (F)
For Mendel's law of segregation to occur, the alleles must be
a) on different loci (= locations) on different chromosomes. b) on a nonhomologous pair of chromosomes. c) on a homologous pair of chromosome at the same loci (= locations). d) at the same loci (= locations) on the same chromosome. e) at different loci (= locations) on the same chromosome.