Answer:
The correct answer will be option- A
Explanation:
Spores are the reproductive unit produced as a result of sexual reproduction and asexual reproduction in both lower and higher plants.
The plant groups like Fungi, Algae, Bryophytes, Pteridophytes and Gymnosperms produce these spores which provides adaptation as they can be dispersed for the long-distance as well as germinate and form an organism.
The spores are formed by the process of sporogenesis which forms four spores from a diploid structure their meiosis which reduces the genetic material to half and maintain the haploid ploidy number.
Thus, option-A is the correct answer.
<span>The abundance and variety of fossils in Phanerozoic rocks have allowed geologists to decipher in considerable detail the past 600 million years or so of the Earth’s history. In Precambrian rocks, however, fossils are rare; thus, the geologic record of this important part of the Earth’s history has been especially difficult to decipher. Nonetheless, stratigraphy and radiometric dating of Precambrian rocks have clearly demonstrated that the history of the Earth extends billions of years into the past.</span>
Overexploitation, Habitat loss, invasive species, climate change
The following goal the U. S. Integrated Ocean Observing System (IOOS) is not intended to address is to promote ocean ownership.
<h3>What is the Integrated Ocean Observing System?</h3>
The United States' Integrated Ocean Observing System, is a network of people and technology.
It collaborates to collect and transmit data on our coastal waters, Great Lakes, and seas.
Some of its work is gathering data in the ocean, while others are on land or in space.
Thus, the correct option is C, which promotes ocean ownership.
Learn more about Ocean Observing System, here:
brainly.com/question/1565876
If mitosis occurs correctly, the division of one cell by mitosis produces two cells.
