difference between
1 parallel venation and reticulate venation.
2 tendrils and spines.
3 simple leaf and compound leaf.
4 complete flower and in-complete flower.
5 petals and sepals.
6 self-pollination and cross-pollination.
7 androecium and gynoecium.
8 testa and tegmen.
9 cytoplasm and nucleopllasm.
10 cell memberane and cell wall.
11 nucleus and nucleolus
Answers
Answer:
1.parallel venation and reticulate venation.
Parallel venation is when the formation of veins are parallel to each other through the leaf. Reticulate venation refers to the arrangement of veins in a leaf where they form a web-like structure. Smaller and more delicate veins emerge from the midrib and spread in the entire leaf.
2. tendrils and spines
Tendrils and spines are two such structures. They can be modified leaves, leaf parts, stipules, petioles or stems. Tendrils are thread-like in shape while spines have pointed ends. Tendrils support climbing plants to twine around a suitable host.
3.simple leaf and compound leaf.
Simple leaves are single leaves that can not sub-divide into leaflets. These leaves attach to a twig by the petiole or stem. Compound leaves can divide to the mid-vein and form multiple leaflets or blades on a common rachis. ... Leaves divided into separate and distinguishable two or more blades.
4.complete flower and in-complete flower.
Complete flowers contain four flower parts: petals, sepals, stamen, and pistil. Incomplete flowers are missing one or more of these four parts. It is possible for a perfect flower to be incomplete, but it is not possible for an imperfect flower to be complete.
5.petals and sepals.
Petals are modified leaves that surround the reproductive parts of flowers. ... Together, all of the petals of a flower are called the corolla. Petals are usually accompanied by another set of modified leaves called sepals, that collectively form the calyx and lie just beneath the corolla.Sepals are small, leaf-shaped, green-coloured and outermost part of the flower. They are the vegetative part of a flower, which functions by protecting the rising buds and by supporting the petals when in bloom. ... The sepals of a single flower are collectively called the calyx.
6. self-pollination and cross-pollination.
Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.
7. androecium and gynoecium.
The main difference between androecium and gynoecium is that the androecium (or stamen) refers to the male part of the flower whereas the gynoecium (or pistil or carpel) refers to the female part. ... Moreover, androecium produces pollen grains while gynoecium produces ovules.
8. testa and tegmen.
Testa is the outermost covering of the seed which protects the seeds from the external injury and bacterial infection whereas, tegmen is the covering of the seed that lies just under the testa.The tegmen is the thin osseous plate that separates the middle cranial fossa from the tympanic and mastoid cavities of the temporal bone. It is comprised of two or three parts 1,2: tegmen tympani (roof of the tympanic cavity)
9. cytoplasm and nucleopllasm.
The cytoplasm is a thick fluid that is present inside each cell and is covered by the cell membrane. Nucleoplasm is the living part of the nucleus that is surrounded by a nuclear membrane.
10. cell memberane and cell wall.
cell wall cell membrane
Present only in plants Present in all types of cells
The most outer layer of cell of plant cell The outermost layer of animal cell
It is 0.1um to several um. It is 7.5-10 nm.
Thick and rigid Thin and delicate
Protects cell externally Protects cell internally
Metabolically inactive Metabolically active
Grows in thickness Does not grow
Fully permeable Selectively permeable
11. nucleus and nucleolus
nucleus nucleolus
Large in size Very small in size
Bound by the nuclear envelope It has no limiting membrane
It contains chromosomes. It does not hold any chromosomes
It is rich in DNA, the genetic material It is rich in RNA