Q: Flowers, double fertilization, and fruits are unique features of what life cycle? Choices: - dinoflagellate - protozoa - early lifehood - angiosperm A:
angiosperm

(Question)
Q: What are the most diverse plants on earth? Choices: - conifers - gymnosperms - grasses - angiosperms A:
(Answer)
angiosperms

Ques: Q: How many major massive extinctions have been since life began on earth? Choices: - three - four - one - five A:
Ans: five

(Q).
Q: What do scientists think are the oldest eukaryotes? Choices: - arthropods - fungi - prokaryotes - protists A:
(A).
protists

Ques:Q: An amide bond joining two amino acid units is called a what? Choices: - carboxyl bond - ammonia bond - precipitate bond - peptide bond A:

Ans:peptide bond

Ques:Q: What is determined by the amount of energy in molecules? Choices: - kingdom - radioactivity - momentum - state of matter A:

Ans:
state of matter