Answer the following statements true (T) or false (F)
1.Gymnosperms are the flowering plants.
2.A seed is an embryo and its food supply is inside a seed coat.
3.The root and shoot apical meristems form at the same time in the plant embryo.
4.Seedless watermelons come from seeds that are triploid and therefore the seeds do not fully develop and form simple soft hulls that are easy to chew.
5.Coconuts are fruits containing seeds that are usually wind dispersed.
1.FALSE
2.TRUE
3.FALSE
4.TRUE
5.FALSE
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What structures are used to move nutrients to the developing embryo of an angiosperm?
a. pistil b. sepals c. style d. cotyledon
In multicellular organisms, specialization in
structure and function of cells is caused by
a. inhibition of transcription. b. methylation of nucleotides. c. a differential expression of genes. d. translation without transcription. e. more than one of these.
What are two factors affect membrane fluidity?
What will be an ideal response?
What is the proton-motive force used for?
a. diffusing substances across membranes and driving movement of flagella in bacteria b. pumping substances across membranes and driving movement of flagella in eukaryotes c. pumping substances across membranes and driving movement of flagella in bacteria d. diffusing substances across membranes and driving movement of flagella in eukaryotes