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Which of the two body forms found in cnidaria is the dominant part of the hydra life cycle?

What is the closest living relative clade to the bird clade?

nitrogen cycle.png Use the figure to answer the question. Consider the global nitrogen cycle depicted in the figure. What is the limiting portion of the cycle for plants?

What part of this egg is labeled at 59.? amniotic egg.jpeg  

What kind of animals are in Phylum Cnidaria?

You discover a new species in a remote rainforest, but this species exhibits some unusual characteristics. It has feathers, but cannot fly, it just uses its feathers to provide insulation and help regulate body temperature, similar to fur. Additionally, this creature produces an oily substance from something equivalent to salivary glands that is not milk but similar to it in that it is used to nurse its young and in nest-building. It builds nests and lays eggs, but it also shows a remarkable level of parental care, with both parents actively involved in feeding and raising their offspring. Given these intriguing characteristics, speculate on the classification of this unique species. Think about shared characteristics. Is it most likely to be a mammal, non-avian reptile, amphibian, or bird?

Which of these conservation ecologists would most likely have agreed with the Bureau of Land Management’s recent decision to cut off all human access to a few large sections of desert lands?

Bighorn sheep population growth.jpg Five new individuals were added to a small population of bighorn sheep in 1986, and ten more were added between 1990 and 1994. According to the figure, what occurred in this population after these additions?

In class, we discussed sea otters. Sea otters in Alaskan kelp forests have what kind of role in the ecosystem?

The symbols +, -, and 0 are to be used to show the results of interactions between individuals and groups of individuals. The symbol + denotes a positive interaction, – denotes a negative interaction, and 0 denotes where individuals are not affected by interacting. The first symbol refers to the first organism mentioned. What interactions exist between arbuscular mycorrhizal fungi and plant roots?