The process, which contribute to the pattern of animal diversity observed is EXTINCTION EFFECTS BOTH LOCALLY AND GLOBALLY.
Biodiversity refers to the varieties of plants and animals, which are obtainable in a particular ecosystem. A high level of biodiversity is always consider to be very important for any ecosystem. The reduction in diversity that was observed was due to mass extinction of some plants and animals. <span />
Answer:
Primary succession begins in barren areas, such as on bare rock exposed by a retreating glacier.
Explanation:
The Moon takes about 27 days, <span>7 hours, 43 minutes, 11.6 seconds</span>
The answer is <span>B. secondary spermatocytes.
A diploid organism (2n) has 12 chromosomes (2n = 12) in its germinal cells. Spermatogenesis actually consists of mitosis and meiosis (the reduction division). It starts from spermatogonia (germinal cells) that are diploid. Through the mitosis, they divide into identical primary spermatocytes. As they are the result of mitosis, they are diploid (2n), too. However, primary spermatocytes undergo meiosis. After meiosis I secondary spermatocytes are formed and they are the first that are haploid (n) and have 6 chromosomes.
</span>
Answer:
The tissues are essential because it represents a level of organisation in living organisms. Tissues also function by transporting nutrients and connects bones and other body parts.
Explanation:
