Which of the following represents the smallest functional unit of living organisms?
A. atoms
B. molecules
C. proteins
D. water
E. salt
A. atoms
Biology & Microbiology
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Which of the following animals reproduce through internal fertilization?
a. Crabs b. Frogs c. Oysters d. Chickens
Biology & Microbiology
This type of cell is closely associated with a companion cell
a. sieve tube member b. tracheid c. vessel elements d. sclerenchyma e. collenchyma
Biology & Microbiology
Which of the following hormones is NOT
related to sexual reproduction?
a. GnRH b. ACTH c. LH d. FSH e. all of these are hormones related to sexual reproduction
Biology & Microbiology
The outer layer of skin is mostly __________
epithelium. a. simple squamous b. simple cuboidal c. stratified squamous d. simple columnar e. stratified cuboidal
Biology & Microbiology