The perianth of a flower consists of
A. the pistil and stamens.
B. the petals and sepals.
C. the pedicel and receptacle.
D. the anthers and stigma.
E. the style and ovary.
B. the petals and sepals.
You might also like to view...
The basal lamina:
A. is a specialized extracellular matrix found beneath epithelial tissues. B. surrounds endothelial cells found in blood vessels. C. is a collagen-rich extracellular matrix D. links to epithelial cells through hemidesmosomes, which attach to intermediate filaments. E. All of these choices are correct.
The principal difference between endocrine glands and paracrine glands is that
a. paracrine glands are directly controlled by nerves. b. paracrine glands secrete steroid hormones, and endocrine glands secrete peptide hormones. c. endocrine glands act over a longer distance. d. paracrine glands are larger and easier to remove surgically. e. only the paracrine glands have a duct.
Four of the five structures listed below are related by
a common quantity. Select the exception. a. urethra b. testis c. ejaculatory duct d. vas deferens e. epididymis
What portion of the cell contains microtubules and microfilaments?
a. nucleus b. mitochondria c. cytoskeleton d. smooth ER e. rough ER