<span>DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.</span>
<u>Gymnosperms and Angiosperms-</u>
Gymnosperms and angiosperms evolved seeds and pollen grains allowing them to live and reproduce in drier habitats than bryophytes and seedless vascular plants.
<u>Properties of gymnosperms and angiosperms-</u>
Gymnosperms are plants which bear seeds without fruits or without any outer coverings. These plants also do not produce flowers. Most plants under this group have needle-shaped leaves. This is an adaptation as these plants grow in colder conditions. Gymnosperms. These plants produce pollen without bearing flowers. Angiosperms are found in almost all climatic conditions. These plants bear flowers and produce seeds that are enclosed inside a fruit or inside an ovary. The seeds of angiosperms have a single cotyledon.
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A globe is a three dimensional model
<span>A </span>globe<span> is a </span>three-dimensional<span>, spherical, scale model of Earth (terrestrial </span>globe<span> or geographical </span>globe<span>) or other celestial body such as a planet or moon.</span>
Answer:
Sensing danger and sweating
