Question

79,80

Question 79 2 pts Which of the following is a synapomorphy of the angiosperms? monosulcate pollen pollen tubes embryos heterospory Question 80 2 pts Which of the following is a synapomorphy of the angiosperms? seeds stamen micropyle tracheids

Answer 1

Answer-

According to the given question-

Question 79-

synapomorphy - is defined as the characteristic which is found in ancestral species as well as in their evolutionary descendants which is either in less modified form or less modified form.

• Presence of one polar furrow in the pollen are known as  monosulcate and it is  plesiomorphic found in monocots as well as in basal angiosperms.
• Pollen tubes helps in transporting the male gamete  from the pollen grain
• In angiosperm double fertilization occur which leads to formation of  one embryo and endosperm this is synapomorphy .
• Heterospory is the production of two different size spores which one develop into microgametophyte and produces antheridia and other as megagametophyte responsible for producing archegonia.

So the correct answer is (C) Embryos.

Question 80-

Synapomorphy is found in stamen which have two locili and lateral dehiscence.