Biology, 29.06.2021 21:50, beckers0115
Monocercomonoides are a genus of single-celled organisms that live as parasites in the guts of small animals. They lack mitochondria, but other evidence shows them to be most closely related to members of the excavates. Looking at the tree for eukaryotes, what can you conclude about the Monocercomonoides?
A. Since excavates are eukaryotes, it is extremely unusual for one of them to lack mitochondria.
B. Excavates branched off before the evolution of mitochondria, so the absence is not surprising.
C. Since they are parasites of animals, they should be placed within the opisthokont branch of the tree.
D. A phylogenetic tree reflects evolutionary relationships, so they should be placed within the excavates.
E. Their lineage likely had mitochondria but lost them at some point.
Answers: 3
Biology, 21.06.2019 22:20, yasmincastor
Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3
Answers: 1
Biology, 21.06.2019 23:00, bigboss2984
In some plants, pointed leaves (p) are dominant over rounded leaves (p). a plant with a genotype of pp
Answers: 2
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