All the following have some sort of hardened
endoskeleton EXCEPT
a. sea stars.
b. sea urchins
c. fish.
d. sea anemones.
e. turtles.
Answer: d
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Where does the Calvin cycle occur?
a. thylakoid membrane b. thylakoid lumen c. stromal lamellae d. cytosol e. stroma
Gastrulation produces
a. hollow balls of cells. b. embryos with primary tissue layers. c. solid balls of cells. d. maternal messages. e. all of these.
Extracts from the ginkgo tree are sold in over the counter (OTC) medicines purported to increase memory. Extracts
from what other gymnosperm were once sold in OTC weight loss supplements? a. Ephedra b. Eucalyptus c. Welwitschia d. Archaeopteris e. Sequoiadendron
G = green leaves g = yellow leaves N = naturally shapedleaves n = curly leaves Individuals with the heterozygous genotype of GgNn repeatedly produce haploid gametes consisting of the alleles GN, Gn, gN, and gn. Which law best represents this phenomenon?
A. Law of Meiosis B. Law of Dominance C. Law of Crossing Over D. Law of Independent Assortment