A good index fossil is one with four characteristics: it is distinctive, widespread, abundant, and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms
Answer:
D
Explanation:
A is wrong, it's talking about land. B is an increase in biodiversity. C is wrong because other biomes depend on reefs
An important part of gamete<span> production is </span>meiosis<span>. In this process, diploid </span>cells<span> get the karate chop to turn them into haploid </span>cells<span>. Although sperm and egg production differ in many ways, </span>meiosis<span> is critical to both processes. ... The parent </span>cell<span> has two sets of chromosomes (2n).</span>
Answer:
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.