Explain the classification animals on the basis of the type of body cavity present. Use correct
terminology and give an example of each. What will be an ideal response?
The classification of animals according to body cavity pertains only to triploblastic organisms. Such
animals can be classified as follows:Acoelomate
animals lack a body cavity; an example is a flatworm
Pseudocoelomate animals have a body cavity that is found between tissue that develops from
endoderm and tissue that develops from mesoderm; an example is a nematode.
Coelomate animals have a body cavity that is completely lined with tissue that develops from
mesoderm; an example is a dog.
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Transcription of a gene depends on the presence of a particular combination of enhancers and their regulatory transcription factors, a type of gene regulation called ____ control
Fill in the blank with the appropriate word.
Answer the following statements true (T) or false (F)
1. Glycolysis involves 10 enzyme-catalyzed steps, that can be grouped into three phases: energy investment phase, cleavage phase, and the energy liberation phase. 2. The electron transport chain consists of a series of redox reactions in which electrons are transferred to oxygen as the final electron acceptor. 3. Oxygen is an excellent final electron acceptor because of its low electronegativity. 4. NADH and FADH2 donate their electrons to protein complex I. 5. Ubiquinone is also known as coenzyme Q.
The Calvin cycle is sometimes referred to as the C3 pathway because it generates a single three-carbon molecule for
every three turns of the cycle.
a. True b. False
The dead brown spots on these leaves
are sites where a pathogen invaded and triggered the defensive destruction of surrounding cells. This is an example of which type of defense?
1.activation of heat-shock proteins 2.increased production of terpenes 3.systemic acquired resistance 4.the hypersensitive response