How do plants control water uptake

What will be an ideal response?


solute concentration in roots, opening and closing of stomates

Biology & Microbiology

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Which of the following statements regarding fern alternation of generations is not correct?

A. Ferns have a dominant, diploid sporophyte. B. The fern gametophyte is very small, but very hardy. C. Most fern gametophytes are capable of producing both male and female gametes. D. Chemical signals released by gametophytes producing eggs cause other, nearby gametophytes to also produce eggs. E. The diploid zygote will grow to become the sporophyte.

Biology & Microbiology

Your infant has been diagnosed with severe combined immunodeficiency disease (SCID).  Your doctor suggests which treatment as a possible cure for the disease?

A. Gene therapy B. Genome mapping C. Microarrays D. Reverse transcription

Biology & Microbiology

Puberty in males marks the start of

a. sperm production. b. testosterone production. c. the emergence of secondary sexual traits. d. fertility. e. all of these.

Biology & Microbiology

The modern synthesis was a fusion of ______.

a. genetics and evolutionary biology b. population ecology and genetics c. molecular biology and comparative anatomy d. the fossil record and genetics

Biology & Microbiology