List the main differences between protostomes and deuterostomes. What will be an ideal response?
Protostomes: exhibit schizocoely, spiral & determinate cleavage, and having a blastopore
that develops into the mouth.
Deuterostomes: exhibit enterocoely, radial & indeterminate cleavage, and having a
blastopore that develops into the anus.
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Innate immunity is
a. the body's first line of defense. b. the body's second line of defense. c. the body's third line of defense. d. involved with the production of antibodies. e. associated with all of these
In plant cells, what provides cellular support and protects cells from pathogens?
a. the cell wall b. the cell membrane c. the cytoplasm d. the plasmodesmata
A situation in which the heterozygote offspring of two homozygotes show an phenotype intermediate between those of the parents is called:
a) a single-gene trait. b) heterozygote superiority. c) a test-cross. d) incomplete dominance. e) multiple allelism.
A vaccine is currently available to prevent HIV infection.
Answer the following statement true (T) or false (F)