B nucleic acids or c nucleotides
There are holes in the end of the phloem tubes because Phloem consists of sieve tube cells and companion cells for conduction of food These sieve elements are placed end to end . At the the junction of two sieve elements there is a plate called sieve plates having circular pores.
The diaphragm in the diagram below is a muscle that contracts during inhalation. thus option A is correct option.
<h3>What is the role of the diaphragm?</h3>
The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily.
Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.
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The correct is option (C) includes bacterial genes that produce a toxin that reduces damage from insect pests.
Due to advancements in plant biology, some plant species can now incorporate unique traits that are typically not found in their species. New and improved plant strains can be created using plant biotechnology. This technology is heavily utilized to advance agriculture.
A particular crystalline insecticidal protein is created by combining a specific gene sequence from the bacteria Bacillus thuringiensis with plants. Bt plant is a common name for these transgenic plants. One such transgenic plant that protects transgenic maize from damaging insects and pests is bt maize.
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