Answer: ok its becase
Explanation:
Lithification is the process by which sediments combine to form sedimentary rocks. Compaction is a consolidation of sediments due to the intense pressing weight of overlying deposits. With compaction, sediment grains get squished together, reducing the size of the original pore space that divided them.
Hope it helps and can i get brianlest
Answer:
mutation and sexual reproduction
Explanation:
Genetic variation within a population occurs via mutation and sexual reproduction, and can be measured using average heterozygosity. Genetic variation between populations is called geographic variation.
The process of sexual reproduction involves two parents, each contributing one gamete. Gametes are produced
by a process called meiosis, which starts by the duplication of the
chromosomes, followed by two rounds of cell divisions and halving of the
chromosome number. Gametes have half the chromosome number of other
adult
cells of an organism.
A key feature of meiosis is the exchange of chromosome pieces which occurs in the first division of this process, called recombination or
crossing over. Recombination is a very important source of genetic
variation between individuals of sexually reproducing species, and the
driving force for the process of natural selection.
<span>Chloroplast is found only in plant cells.</span>
Answer:
water
Explanation:
water is the most important molicule