Which gives nourishment to embryo sac??
1) Tapetum
2) Endosperm
3) Thalamus
4)Nu...
Biology, 20.03.2021 14:50 harris6518
Which gives nourishment to embryo sac??
1) Tapetum
2) Endosperm
3) Thalamus
4)Nucellus​
Answers: 3
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6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.
Answers: 1
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Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries
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Contrast how pollination is different among gymnosperms and angiosperms.
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