Answer:
B. Habitat destruction
Explanation:
What is the number one cause of biodiversity loss? 1. Habitat destruction. Habitat destruction is a major cause of biodiversity loss.
Answer:
2n=46(duplicated)
Explanation:
Prior to cell division, which can either be meiotic or mitotic, the DNA content of the cell gets doubled in the Synthesis phase of the Interphase stage. In humans like myself, our cells consist of 23 pairs of chromosomes or 46 chromosomes. The DNA doubles in order for each daughter cell to get the correct number of genetic material.
After the S-phase, the chromosome number in the human cell does not change, just that each individual chromosome gets replicated or duplicated to form sister chromatids. Therefore, the human cell will contain 46 duplicated chromosomes or 92 sister chromatids after Synthesis phase and before the meiotic division.
Note that, humans are diploid organisms (2n) i.e. two set of chromosomes. Hence, they undergo meiosis to reduce their ploidy level from diploid (2n=46) to haploid (n=23).
A. "In the distant future, we're all going to be crushed"
Explanation -
Oscillating Universe Theory combines the big bang theory and the big crunch theory. This theory states that the Universe does not have any end and it would undergo various epochs during this process.
It mentions that the Universe expands and contract where it becomes small and dense and will lead to a new beginning that will have a different property than the old universe. Some day, the universe is going to shrink and crush.
Answer:
BB indicates that the gene is homozygous dominant.
bB: indicates that the gene is heterozygous dominant.
bb: represents that the gene is homozygous recessive.
Bb: shows that the gene is heterozygous dominant.
Explanation:
Capital alphabet is used to describe dominant allele while small alphabet is used to show recessive allel. If both allele are small or capital alphabets so it is homozygous while if both allele are different so it is heterozygous gene.
