Biology, 18.03.2020 05:05 ob3ymysins
Consider the following points: (a) many excavates live in environments where oxygen availability is low; (b) many excavates lack mitochondria; and (c) all excavates have some mitochondrial genes. Based on this information, which of the following statements is TRUE of the excavate lineage?
a. Their ancestors were eukaryotes that existed prior to the origin of mitochondria
b. Their ancestors were not able to metabolize glucose
c. Excavates are in the process of acquiring mitochondria through evolutionary adaptation
d. Their ancestors had mitochondria, but the mitochondria were lost over time
Answers: 2
Biology, 22.06.2019 10:10
Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.
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Biology, 23.06.2019 02:30
If a dna molecule has 100 nucleotides and 22 of them are cytosine, how many thymines does it have?
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Biology, 23.06.2019 10:40
Ameadow ecosystem includes many species of grasses and small shrubs, several herbivores, and a few carnivores. a fungus colonizes the meadow and kills most of its vegetation. what is most likely to happen to the populations of herbivores and carnivores in the ecosystem?
Answers: 2
Consider the following points: (a) many excavates live in environments where oxygen availability is...
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