soumyajeetrc123

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Pollination is best defined as

a)transfer of pollen from anther to stigma

B)germination of pollen grains

C)growth of pollen tube in ovule

D)visiting flowers by insects

Suppose that Demand is D = 10-2P, where P is the price.

(a) Evaluate the elasticity of demand at P = 2.

(b) Evaluate the elasticity of Demand at P = 3.

(c) Write the marginal revenue, evaluated at these two prices.

8. Explain where meiosis takes place in the a. Mosses b. Ferns c. Angiosperms

9. Mosses and liverworts are non-vascular plants, while club mosses, ferns, and angiosperms are vascular plants. Define the term vascular. How does the presence of vascular tissue affect the height of the plant?

3. Non-vascular and vascular seedless plants are said to be homosporous. Using C-ferns as an example, explain how male and female gametophytes develop from spores that are genetically identical.

17. The angiosperms are classified in___________________________.

A. two phyla, "seedless vascular plants" and "seed-producing vascular plants"

B. the same phylum as conifers

C. three classes, the eudicotyledoneae, the monocotyledoneae, and the angiophyta

D. a single phylum, the anthophyta

Pine, fir, spruce, cedar, larch and cypress are the famous timber-yielding plants of which several also occur widely in the hilly regions of India. All these belong to

A)angiosperms

B)gymnosperms

C)monocotyledons

D)dicotyledons

Plants receive their nutrients mainly from

A)chlorophyll

B)atmosphere

C)light

D)soil

Write a persuasive speech on why America needs more gun control

Ordinary table salt is sodium chloride. What is baking soda?

A certain aqueous solution of sucrose at 25oC has a vapor pressure of 23.34 torr (a unit for pressure). The vapor pressure of water at 25oC is 23.76 torr. Find the activity of the solvent water in this sucrose solution.