Answer:
The DNA enzyme; Helicase
Explanation:
DNA chains are "unzipped" by the enzyme Helicase; which requires energy to function
Answer:
Following are the six accurate statements:
1. The seeds allow the plant embryos to get dispersed over the long distances from the parent plant through animals or wind.
2. In various angiosperms, the male gametophyte comprised in a pollen grain can get translocated various miles away through animal or wind.
3. Fruits help in the dispersal of seeds by animals or wind, which eat or carry the fruits.
4. The fruits protect the seeds, and the seeds nourish and protect the plant embryos.
5. The floral components of the sporophyte safeguard the reduced female gametophyte from dying out and from ultraviolet radiation.
6. Flowers fascinate animal pollinators carrying pollen from other plants of the similar species.
The other mentioned statements are incorrect. The spores are not generated in the angiosperms, however, seed gets produced post-fertilization that comprises developing embryo. The cotyledons exhibit stored food substance and seeds are comprised within the seeds. The seeds get dispersed with the help of abiotic and biotic agents.
The fertilization in angiosperms is not reliant upon the water, it is rather the pteridophytes and bryophytes that cannot complete their life cycle in the absence of water. In angiosperms, the main plant body is sporophyte that safeguards the female gametophyte.
They keep the climate of the land moderate
Answer:
Because it talks about matter in an unspecified way
Explanation:
Answer:
Nicolaus Copernicus
Explanation:
Nicolaus Copernicus challenged the notion proposed by Aristotle, which stated that there were four physical elements: water, fire, earth and air. It also stated that Earth was the centre of the universe, and that the four elements were below the moon and other planets, all moving around the Earth.
Copernicus challenged this with the heliocentric theory, which included assumptions that the Earth was the centre of gravity and its orbiting moon, that the sun is close to the centre of the universe with the planets orbiting it, and that the universe is much larger than the scale that Aristotle suggested.
