The letter B indicates a(n) ____
a. producer
b. herbivore
c. detritivore
d. carnivore
e. decomposer
ANSWER: b
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Lamellipodia are formed by:
A. the contraction of myosin and actin. B. the polymerization of actin microfilaments. C. the polymerization of microtubules. D. the disassembly of intermediate filaments.
True or False: Exponential growth depends on the per capita growth rate (r) of a population gradually increasing over time
A. true B. false
Answer the following statements true (T) or false (F)
1. The type of cellular response that is caused by a given signaling molecule depends on the type of cell responding to the signal. 2. Apoptosis can occur via both intrinsic and extrinsic pathways. 3. Apoptosis is necessary in humans in order to eliminate cells infected by viruses, cells that are worn out, and those that have the potential to cause cancer. 4. Ligands that promote cell death are typically produced on the surface of cells of the immune system that recognize abnormal cells and target them for destruction.
Differentiate between the following terms and provide an example for each: mutualism, communalism, synergism, parasitism.
What will be an ideal response?