Which of the following have a thicker muscular wall?

a. arteries
b. veins
c. capillaries


A

Biology & Microbiology

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Once implanted, the blastula releases which of the following hormones?

a. estrogen only b. all of the choices c. progesterone only d. human chorionic gonadotropin (HCG) only

Biology & Microbiology

Which of the following are sugar-transporting cells in angiosperms?

a) parenchyma cells b) tracheids and vessel elements c) sieve-tube elements d) collenchyma cells e) clerenchyma cells

Biology & Microbiology

The arguments supporting spontaneous generation were finally disproved by

A) Louis Pasteur. B) Francesco Redi. C) Rudolf Virchow. D) John Needham. E) Lazzaro Spallanzani.

Biology & Microbiology

All animals have cell junctions.

Answer the following statement true (T) or false (F)

Biology & Microbiology