Zebra mussels are great eating and intentionally grown in Texas lakes.

True or false


Answer is false. (They cause environmental problems by killing native mussels; coating surfaces with razor-sharp shells; foul anchor chains; blocking water intake pipes; and stealing plankton and other food from native fish.)

Biology & Microbiology

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In polar covalent bonds

1.one atom has a stronger attraction for the shared electron than the other. 2.both atoms share the electrons equally. 3.the bonds are the result of ions being formed. 4.the atomic mass is altered.

Biology & Microbiology

Hypophosphatemia is inherited as a sex-linked dominant trait. The relevant gene is found on the X chromosome. What is the expected outcome of a cross between a homozygous recessive woman and a man with hypophosphatemia?

A. Fifty percent of their daughters and fifty percent of their sons exhibit hypophosphatemia. D. Twenty-five percent of their offspring exhibit hypophosphatemia. C. All of their sons and none of their daughters exhibit hypophosphatemia. D. All of their daughters and none of their sons exhibit hypophosphatemia.

Biology & Microbiology

Which of the following does not occur during PCR?

A) Denaturation at high temperatures B) Synthesis of oligonucleotide primers C) Annealing of oligonucleotide primers D) Extension of primers by DNA polymerase E) Changes in the reaction temperature by a thermocycler

Biology & Microbiology

When you walk into your grandma's house, you follow the smell of the baking chocolate chip cookies using ________ cues, but after spending a half an hour in the kitchen,

you cannot notice the strong smell anymore because of ________, meaning that your receptors adjusted. A) visual; sensory adaptation B) olfactory; stapedial reflex C) olfactory; sensory adaptation D) visual; stapedial reflex

Biology & Microbiology