- (A) Axons
- (B) Dendrites
- (C) Schwann Cells
- (D) Myelin Sheath
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- The C4 photosynthetic process was discovered by?
- (A) Blackman
- (B) Marshal Hatch
- (C) Rogerslack
- (D) Both B & C
- Toxic substances can influence organisms in what ways at the cellular level?
- (A) They can effect enzymes which regulate many important chemical reactions.
- (B) They can bind directly to the cells or the molecules upsetting the chemical balance within the body.
- (C) They can cause the release of other substances that have an adverse effect.
- (D) All of the above
- Which one of the following is not included in single gene effect mechanism?
- (A) Neurospora
- (B) Yeast
- (C) Drosophilla
- (D) Some fish
- A ground plan showing relation of flora leaves to each other and to mother axis is called?
- (A) Floral diagram
- (B) Inflorescence
- (C) Floral formula
- (D) Placentation
- which one is drought resistant xerophyte(Succulent plant)?
- (A) Opuntia
- (B) Suaeda
- (C) Typha
- (D) Triantherna
- Weathering may be?
- (A) Biological
- (B) Physical
- (C) Chemical
- (D) All of the above
- Which one is not submerged hydrophyte?
- (A) Wolfia
- (B) Vallisnaria
- (C) Hydrilla
- (D) Elodea
- They are the outgrowth of somatic hyphae which the fungus sink into plant host cells through minute pores in the cell wall?
- (A) Appressoria
- (B) Trape
- (C) Haustoria
- (D) Rhizomorph