FREE EARTH SCIENCE AND STUDY GAMES ABOUT APES

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FREE EARTH SCIENCE AND STUDY GAMES ABOUT APES

UNIT 2 VOCAB EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -46 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: recombination

Answer:

the genetic process by which one chromosome breaks off and attaches to another chromosome during reproductive cell division

Question 2: phylogenetic diversity

Answer:

measure of biodiversity, based on phylogeny (the tree of life)

Question 3: ecosystem

Answer:

a particular location on Earth with interacting biotic and abiotic components

Question 4: episodic

Answer:

occasional events with irregular frequency

Question 5: limited resource

Answer:

a resource that a population cannot live without and that occurs in quantities lower than the population would require to increase in size.

Question 6: secondary succession

Answer:

the succession of plant life that occurs in areas that have been disturbed but have not lost their soil.

Question 7: salinity

Answer:

dissolved salt content in a body of water

Question 8: reproductive isolation

Answer:

the result of two populations within a species evolving separately to the point that they can no longer interbreed and produce viable offspring

Question 9: native species

Answer:

species that live in their historical range, typically where they have lived for thousands or millions of years.

Question 10: species richness

Answer:

the number of species in a given area

Question 11: supporting

Answer:

natural ecosystems support processes we do ourselves making them less costly and easier for us

Question 12: specialist species

Answer:

animals that acquire very unique resources

Question 13: non-native species

Answer:

organisms that do not occur naturally in an area, but are introduced as the result of deliberate or accidental human activities.

Question 14: species diversity

Answer:

the number of species in a region or in a particular type of habitat

Question 15: range of tolerance

Answer:

the limits to the abiotic conditions that species can tolerate

Question 16: regulating

Answer:

benefit provided by ecosystem processes that moderate natural conditions like climate change and air quality

Question 17: cultural

Answer:

revenue from recreational activities and profits from scientific discoveries made in ecosystem

Question 18: periodic

Answer:

occurs with regular frequency

Question 19: adaptation

Answer:

a trait that improves an individual's fitness

Question 20: speciation

Answer:

the evolution of new species

Question 21: sea level

Answer:

the base level for measuring elevation and depth on Earth.

Question 22: genetic diversity

Answer:

a measure of the genetic variation among individuals in a population

Question 23: ecological tolerance

Answer:

Capacity of an organism to tolerate certain conditions or changes to its environment, due to physiological and morphological properties.

Question 24: ecosystem services

Answer:

the processes by which life-supporting resources such as clean water, timber, fisheries, and agricultural crops are produced

Question 25: community

Answer:

all of the populations of organisms within a given area

Question 26: migration

Answer:

to move into or come to live in a region or community especially as part of a large-scale and continuing movement of population

Question 27: provisioning

Answer:

goods/products directly provided to humans for sale/use by ecosystems; goods/products are made from natural resources that ecoystems provide

Question 28: glacial ice

Answer:

an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly