What is so special about tropics that might account for their greater biological diversity.

What if the difference between a fiona and a fauna

Which species are most broadly distributed, which have the smallest range?

The Endangered Species Act (ESA) of 1973 has helped to slow the destruction of habitat and the loss of species in the United States.  There are now many success stories of animals/plants that were on the edge of extinction and now are returning.  Even with the success stories there are many who criticize ESA. I want you to give at least 2 examples (with explanation) that show the success and need for The Endangered Species Act. And give 2 reasons why ESA is still criticized after all these years.

Insects are the largest group of animals on Earth. Insect diversity is greatest in the tropics, where habitat destruction and species extinction are occurring at an alarming rate. What biological, economic, and ethical arguments can you advance to persuade people and governments to preserve this biological diversity? Instructions:

Imagine you are a botanist. Below are characteristics of a never-before described plant species recently identified as part of the ‘All Taxa Biodiversity Inventory’ (ATBI).Organism 1Field Notes: Specimen collected from rocks on bank of streams from the Adirondack Park (NY). Plant growth form is more ‘prone’ than upright (plant seems to have little support).Laboratory Analysis:Body: Consists of three regions: light brown anchoring tissue (base of plant); Green vegetative area (middle of plant); Brownish-green, stalk-like structure bearing capsule at end (top of plant).Size: 8 cm in lengthChromosomal Analysis: Bottom two thirds of plant is haploid (chromosome # 10), while top third of plant is haploid (chromosome # 20).Lignin test: NegativeCuticle: PresentLeaves: Absent, though they do possess green photosynthetic structures. Contains chlorophyll a, b; B-carotenes; xanthophylls.Roots: Absent, though they do possess anchoring (possibly absorptive) structures.Stem: Absent, though they do…

Of the 50,000 species introduced into the United States, half are plants. Describe two ways in which non-native plants might be brought to a new environment. How might we help prevent non-native plants from establishing in new areas and posing threats to native communities?