Plant Anatomy And Physiology - Study Mode
[#316] The part of life cycle of Puccinia which is passed on the grain host or the wheat plant represents the
Correct Answer
(D) Dikaryophase
[#317] Advantages of self-pollination include
Correct Answer
(A) Less chances of failure of pollination
[#318] Which of the following statements about phloem transport is correct?
Correct Answer
(D) Sugar is transported in phloem as non-reducing sugar
[#319] A natural process observed in lakes and tanks where the rich growth of micro-organisms consumes much of the dissolved oxygen, tending to deprive other organisms is known as
Correct Answer
(A) Eutrophication
[#320] Consider the following statements and choose the correct answer: 1. The effects of biotic factors include interactions amongst plants growing in a community, between plants and animals including man and between plants and soil-microorganisms 2. In a densly populated area, one of the most important types of biotic factors influencing vegetation is due to man's multifarious activities - this is noted in farming operations 3. Change or destruction of vegetation by fire is a direct biotic effect due to man's activities 4. In many cases different plant groups, plants and bacteria live in mutual benefit - this is called symbiosis in which each partner derives some benefit from the other
Correct Answer
(A) Only 1, 2 and 4 are true