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Which of the following is a characteristic of all angiosperms?

Correct Answer: double internal fertilization

The flowering plants, also known as angiosperms, Angiospermae or Magnoliophyta, are the most diverse group of land plants. These are also seed producing plants like gymnosperms. In Angiosperms seeds are in flowers.

Statements : All pencils are birds. All birds are skies. All skies are hills.

Conclusions :
I. All pencils are hills.
II. All hills are birds
III. All skies are pencils.
IV. All birds are hills.

Which of the following is the principal pathway by which water is translocated in the angiosperms?

Which of the following is not true about Angiosperms?

In which of the following families of angiosperms, endosperm development is absent?

In which of the following periods the first traces of Angiosperms are available?

Which of the following has been regarded as the primitive most family of living angiosperms?

Which of the following is known to be involved in the photoperiodic flowering response of angiosperms?

h,J,K,L,M,N and O are the only legislators eligible to vote on Bills 1,2 and 3, each of which will be passed if at least four legislators eligible vote in favor of it. each legislator must vote on all three bills; on abstentions are possible. The following is known : *H must vote against all three bills; each of the other legislators must vote in favor of at least one bill and against at lest one bill. *j must vote against Bills 1. *O Must vote against Bills 2 and 3. * L must the same way that K dose on all three bills.*N must vote the same way that O dose on all three bills. If M votes the same way that O dose on all three bills, which of the following can be determined ?

Consider the following statements regarding evidences of evolution and choose the correct answer:
1. Serodiagnostic tests of the members of the families of angiosperms help greatly in tracing out the phylogeny among themselves
2. The barriers like lofty mountains, deserts and sea are responsible for the origin of endemic species of a particular area
3. Endemic species are often found to originate with some closely allied species
4. Domestication of plants means the culture or cultivation of plants

Consider the following statements and choose the correct answer:
1. In angiosperms the pollination consists of transference of the pollen grains from the anther to the stigma either by self-pollination or by cross-pollination
2. Pollen grain is shed from the pollen sac in the two-celled stage
3. The exine of each microspore grows out into a tube, called the pollen tube
4. The growth of pollen tube is stimulated by sugary substances secreted by the stigma