What is meant by double fertilization in flowering plants?
What will be an ideal response?
Two sperm are necessary. The first fertilizes the egg to produce the 2N zygote. The second sperm fertilizes the N + N endosperm mother cell to form the 3N endosperm.
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Which of the following is an important function of The Vertebrate Skeleton?
A. support and locomotion B. blood formation C. calcium homeostasis D. protection of soft tissues such as the brain E. All of the choices for this question are correct.
The most common GMOs are
a. protists and plants b. fungi c. animals d. bacteria and fungi e. plants
In Drosophila melanogaster, sex is determined by the ratio of the number of X chromosomes to the number of haploid sets of autosomes
Indicate whether the statement is true or false
Which of the following bacteria is a common soil contaminant that may cause disease in humans and is a biological select agent?
A. Aspergillus oryzae B. Bacillus anthracis C. Cyanobacteria D. Lactoccocus cremoris E. Streptomyces scabies