Which of the following are involved directly in pulmonary circulation?

With the help of examples, explain the various types of vascular bundles.

In angiosperms the vascular bundles are mainly of three types (i) radial (ii) conjoint (iii) concentric.

(i) Radial : Presence of radial vascular bundles is the characteristic feature of roots. Those vascular bundles in which xylem and phloem are present on different radii are known as radial vascular bundles. In between xylem and phloem bundles parenchymatous cells are present.

(ii) Conjoint : In these vascular bundles xylem and phloem are present on the same radii. Conjoint vascular bundles may be collateral (phloem is present only outer to xylem) or bicollateral (phloem is present on both sides of xylem). If cambium is present between xylem and phloem then the vascular bundle is known as open, otherwise it is called closed.

(iii) Concentric : Those vascular bundles in which one type of vascular tissue is surrounded by another type are known as concentric vascular bundles. These bundles may be amphivasal or leptocentric(phloem is completely surrounded by xylem) or amphicribal or hardocentric (xylem is completely surrounded by phloem). Amphivasal bundles are found in Dracaena and Yucca. Amphicribal bundles are found in stamens of many dicots etc.

He got his 1000th run against Zimbabawe in '92

Sourav Ganguly made his debut against West Indies at Brisbane and scored 3 runs. (India dismissed for 191 in 48.3 overs). West Indies won the match by 6 wickets.

Dumping is a term that is used in financial markets as well as in international trade. In the context of buying and selling securities, dumping refers to the practice of selling large blocks of securities. More specifically, when dumping securities the seller is primarily interested in getting rid of the securities at any price. One simply dumps, or unloads, on the market with no regard to the selling price of the securities.

Dumping is also used in a commercial sense in the context of international trade. It refers to the practice of one country selling commodities or finished products in another country below cost or fair market value. Predatory dumping occurs when one nation exports goods to another nation below cost or fair market value in order to obtain market share at the expense of domestic competitors. In many cases, predatory dumping drives out domestic competition. Then, having established a dominant marketing position in the industry, the predatory dumpers raise their prices well above previous levels.

Many nations, including the United States, have enacted antidumping laws that provide for the imposition of antidumping penalties or tariffs when a case of dumping can be proven. Following the Uruguay Round of Multilateral Trade Negotiations in 1993, the General Agreement on Tariffs and Trade (GATT) contained provisions to standardize antidumping measures by different nations. Antidumping measures affect not only the practice of dumping goods into the U.S. market, they also affect the ability of U.S. companies to export goods to other countries at competitive prices.