Question 23
Put the steps of recombining DNA in order.

1. using PCR to make many copies of a gene
2. inserting the genes into the vectors
3. cutting the desired DNA by restriction sites,
4. transferring the vectors into host organism
5. obtaining the products of recombinant genes

the core of the sun is so hot and there is so much pressure, nuclear fusion takes place, hydrogen is changed to helium. nuclear fusion creates heat and photons. when the heat reaches the earth it warms the molecules of the atmosphere, and they warm other molecules and so on.

ocean expansion, global warming is melting icebergs and causing water levels to rise.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.