Mimulus lewisii and mimulus cardinalis are two plants that occupy the same habitat but do not interbreed in nature. however, they can be readily crossed in the laboratory to produce fertile offspring. which of the following is a likely reason that prevents interbreeding of these plants in nature? . 1. they only reproduce by self-pollination.. 2. they have incompatible gametes.. 3. they show seasonal differences in flowering.

Option 1,  They only reproduce by self-pollination.

Explanation:

There exists a pollinator isolation between the given two species of plants. Mimulus lewisii is pollinated by bees while Mimulus cardinalis is pollinated by humming bird. The two plant species pollinate with in their own species and thus there is no scope for cross pollination.  Due to this difference, there in no possibility of natural interaction between Mimulus lewisii and Mimulus cardinalis and hence they breed separately.

Option 1 is correct

chemical because it warmed up which involves temperature and it bubbled which includes changing

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answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;