To strengthen the conducting cells and help plants stand erect without water for them to float in, land plants developed
A) stomata.
B) a cuticle.
C) flowers.
D) vascular tissue.
E) lignin.
E
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The viral envelope closely resembles the
A. prokaryotic cell wall. B. capsomere. C. eukaryotic cellular membrane. D. cytoplasm.
Couples who are at risk for passing on alleles for cystic fibrosis, muscular dystrophy, or other genetic disorders can eliminate this risk by opting for ________
a. preimplantation diagnosis b. amniocentesis c. chorionic villi sampling d. fetoscopy
The first hominin to have enough uniquely human features to be placed in the same genus as modern
humans is Homo erectus. ____________________ Indicate whether the statement is true or false.
Why does understanding the origin of life require the collaboration of biologists, chemists, geologists, and atmospheric scientists?
What will be an ideal response?