List the three major steps in the development of angiosperms.
What will be an ideal response?
Answer: three major steps are from zygote to seedling embryogenesis maturation germination
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A student travels to Brazil by boat on the Amazon River, without visiting the doctor prior to traveling for recommended vaccinations for travel to South America. The student becomes ill during the trip and is quarantined
Which of the diseases listed below does the student most likely have? A) hantavirus B) yellow fever C) Ebola D) Q fever
What phenomenon would violate the conditions for Hardy-Weinberg equilibrium?
A. The population is isolated from other populations. B. Females select males based on secondary sex traits. C. The population is large. D. No genotypes within the population have a reproductive advantage. E. Genetic drift within the population does not change allele frequencies.
Which organ system is NOT required for the maintenance of homeostasis within an organism?
a. excretory system b. reproductive system c. skeletal system d. endocrine system e. lymphatic system
A variant of a trait coded for by a gene is known as ________.
a. DNA b. an allele c. a homozygote d. a hybrid