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The membrane surrounding the vacuole in a plant cell is called the
Nastic movement is
An organism that exhibits extracellular digestion is
Secondary thickening in a dicotyledonous stem is controlled by the
The behavioral adaptation in social insects could best be described as
A unique characteristic of the cervical vertebrae is the presences of
The companion cells are part of the
A pollutant that is biodegradable is
The larval stage of a mosquito is called
A band of connective tissue linking two bones in a joint is known as
The enzyme that is present in the saliva is
The inactive state exhibited by an animal during hot and dry seasons is termed
Which of the following is an organ
The vascular tissues in higher plants are responsible for
For heterotrophic organisms, competition is least caused by the inadequacy of
An example of a fish that aestivates is
A hydrostatic skeleton is the type of supporting system found in
The average number of individuals of a spear per unit area of the habitat is the
An amoeba and an unlaid chicken egg are
The brightly colored eyespot on the hind wings of a moth is an example of
The scapula and the ischium are parts of the
The loss of soil through erosion can be reduced by
Which of the following groups is the most advanced?
The ability of a chameleon to change its color is an adaptive feature for
The main structure in vertebrae that supports and protects the body is the
Which of the following animals is most adapted for water conservation?
Spines and shells on animals are adaptations for
A plant tissue that carries water and mineral salts is the
The most important ecological factor in a terrestrial environment is
One adaptation of reptiles to water loss is the presences of
Which of the following relationship involves only one organism?
Plants that grow in an area that is neither too wet nor too dry are
Germination which results in the cotyledons being brought above ground is called
A pollutant that is mostly associated with acid rain is
Which of the following is an example of a carnivorous plant?
For growth to occur in organisms, the rate of
Secondary thickening is initiated in a dicotyledonous stem by the
The natural process that produces adaptive evolutionary changes is
Water is necessary for a germinating seed because it
The red coloration on the head of a male lizard helps it to
A major adaptive feature of endoparasites is the
The function of ribosome in cells is
In which of the following vertebrates does the skin function as a respiratory surface?
Which of the following has the most primitive respiratory system?
Muscles are indirectly attached to bones by means of
The organism is found in soil rich in
Which of the following factors can bring about competition in a population
The organelle involved in tissue respiration is the
Which of the following does a virus have in common with animal cells
The highest level of ecological organization is the