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

Biology & Microbiology

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The viral envelope closely resembles the

A. prokaryotic cell wall. B. capsomere. C. eukaryotic cellular membrane. D. cytoplasm.

Biology & Microbiology

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

Biology & Microbiology

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.

Biology & Microbiology

Why does understanding the origin of life require the collaboration of biologists, chemists, geologists, and atmospheric scientists?

What will be an ideal response?

Biology & Microbiology