B. an ecosystem
An ecosystem contains a community (several species of organisms) and the environment including air, water, and more.
How are new alleles created? Occasionally, DNA mutations occur in germ cells – cells destined to become eggs or sperm. In this case, the DNA mutation is copied into every new cell of the growing embryo following fertilisation. ... If the mutation affects a gene, it will result in a new version of that gene – a new allele.
Answer:
Nitrogenous Base. Purines and pyrimidines are the two categories of nitrogenous bases. ...
Pentose Sugar. In DNA, the sugar is 2'-deoxyribose. ...
Phosphate Group. A single phosphate group is PO43-.
Explanation:
Answer:
true
Explanation:
remember- Haploid it sounds like half, so when you think of half, always think of sex chromosomes. 23 chrom.
diploid- well its the other one so yeah 46 chrom.
Explanation:
vascular because it has spores
vascular because it has true roots
nonvascular because it has spores
nonvascular because it has true roots
