Double fertilization is
A. fertilization of two eggs in the same flower.B.
fertilization of an egg by two sperm.
C. fertilization of an egg by one sperm and an endosperm-forming cell by another sperm.
D. fertilization of two eggs by the same sperm.
E. fertilization of an egg and an endosperm-forming cell by the same sperm.
C. fertilization of an egg by one sperm and an endosperm-forming cell by another sperm.
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The water lost during transpiration is a side effect of the plant's exchange of gases. However, the plant derives some benefit from this water loss in the form of _____
A) increased turgor and increased growth B) mineral transport and increased growth C) evaporative cooling and increased turgor D) evaporative cooling and mineral transport
A specific marker with two peaks indicates that the individual is ________ with respect to that particular STR marker
a. homozygous b. heterozygous
The cell that participates in both the innate and adaptive defense by presenting antigens to activate helper T cells is the
A. B cell. B. T cell. C. macrophage. D. plasma cell. E. chondrocyte.
The stage of viral replication in which the new viruses leave the host cell is:
a. Release b. Attachment c. Penetration d. Synthesis e. Assembly