Ecology of Ecosystems
Ecosystems are exposed to change in the environment which can effect the composition of the ecosystem. These changes are called _____
what is disturbances
Animal embryos pass through a series of developmental stages that establishes a _____ body plan
what is determined and fixed
A variety of methods can be used to sample populations to determine their size and density, depending up whether the organism is _____.
what is immobile or mobile
Rarely do populations live in isolation from populations of other species. Most of the time, numerous species share the same habitat.
What is true
Over _____ % of the world's natural forests have already been destroyed.
What is 80%
Over time, adaptations led to changes in the _____ of bones in different species.
What is shapes and sizes
Scientists often study populations by sampling a _____ part of each habitat, and then use the sampled data to make inferences about the whole habitat.
what is small
All of the interactions between populations within a community play a major role in regulating a given population.
What is true
is the study of the changes in ecosystem structure caused by changes in the environment (disturbances) or by internal forces.
what is Ecosystem dynamics
_____ is a medical process of removing wastes and excess water from the blood by diffusion and ultra filtration.
What is Dialysis
What is the statistical study of population dynamics?
what is Demography
Populations occupying the same habitat form a _____.
What is community
The theory of _____ helps to explain how populations can evolve to become better suited to their environments within their ecosystem.
what is natural selection
____ is the evolutionary changes that are adaptive to a given environment.
what is Adaptive evolution
Populations are groups of organisms of the same species which live in _____ at the same time and compete with each other for resources.
what is the same place
Species have evolved numerous mechanisms to escape predation and herbivory. These defenses may be classified as _____.
what is chemical, behavioral, mechanical, physical
is the steady state of an ecosystem in which all organisms are in balance with each other and with their environment.
What is equilibrium
Osmoregulation is the process of maintaining the _____ balance across membranes within the body.
What is water and salt
Populations with a _____ population density may be more stable than smaller populations due to their genetic variability and potential to adapt to the environment.
What is high
conspicuous coloration or markings of an animal serving to warn off predators. This is
What is aposematic coloration