Answer:
abiotic and biotic factors
Explanation:
abiotic factors are things like sunlight, soil, minerals, ect.
biotic factors are things like plants, animals, fungi, ect.
Both have been impacted by oil drilling and mining.
Answer:A, B, D, E
Explanation:i just did it on usatestprep, trust
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:
when G1/S cyclin-CDK is activated. Expression of G1/S cyclins is regulated by E2F proteins
Explanation:
I've found this on Google
Commitment to cell division occurs at Start when G1/S cyclin-CDK is activated. Expression of G1/S cyclins is regulated by E2F proteins in conjunction with pRB proteins.. Mitogens stimulated cell division by increasing the amount of G1 cyclins.
