Which of this organisms belongs to the stramenopiles , a large, diverse group of protists?
Answer: Brown alage
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Which of the following statements is NOT correct regarding the "multiregional" and "out of Africa" hypotheses for the origin of modern humans
A. The "multiregional" hypothesis predicts an approx. two million year divergence time between African and non-African mitochondrial DNA sequences. B. The "out of Africa" hypothesis is consistent with an approx. 200, 000 year divergence time between African and non-African mitochondrial DNA sequences. C. The "multiregional" hypothesis predicts that African samples would form a monophyletic group in a phylogenetic analysis of African and non-African samples. D. The "out of Africa" hypothesis predicts that African samples should form a paraphyletic group in a phylogenetic analysis of African and non-African samples.
____ have four pairs of walking legs attached to their cephalothorax and no antennae
a. Ticks and mites b. Insects c. Crustaceans d. Myriapods e. Arachnids
Which of the following characteristics is often associated with animals that are radially symmetrical?
A) Gastrovascular cavity B) Sessile or otherwise nonmobile C) Cephalization D) Mobility E) Mesoderm
A patient arrives at a hospital suffering from serious difficulty breathing and shortness of breath. Initial tests indicate none of the standard respiratory infectious agents are present. The physician suspects an immune disorder. What clinical indicators would distinguish between asthma, pneumonitis and Pneumocystis pneumonia?
What will be an ideal response?