Which of the following statements is NOT true of any Foraminifera?
A. They contain symbiotic algae.
B. They formed petroleum deposits.
C. They are useful in studying global warming.
D. They have filose pseudopodia.
E. They have flagella.
E. They have flagella.
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The main role of the liver is to ________.
A. produce bile, which helps the process of digestion B. absorb nutrients C. break large food into smaller food bits D. absorb water
Structure of typical long bone
What will be an ideal response?
During the nineteenth century, sea otters were hunted almost to the point of extinction. When the number of sea otters became very low, it was noticed that the ecosystem of kelp bed "forests" was also disappearing
It was discovered that the sea otters were predators of sea urchins, which were, in turn, predators of the kelp. When sea otters declined, the sea urchin populations grew, destroying the kelp ecosystem and the many species that depended on it. What role did sea otters perform in this ecosystem? A) competitors B) producers C) a keystone species D) parasites
If an individual exhibits a recessive trait, which of the following statements can you be sure of?
A) Any children this individual has will always exhibit the trait, regardless of the genotype of the other parent. B) Any siblings of this individual will have the same phenotype for this trait. C) The phenotype for this trait is different from the phenotype of the homozygous dominant genotype for this trait. D) Both parents of this individual had the same genotype for this trait. E) The genotype of this trait will be heterozygous.