I believe it’s Precambrian.
Answer:
Carbon dioxide and oxygen can't pass through the cuticle, but move in and out of leaves through openings called stomata
Explanation:
Answer:
1. A. carbon,hydrogen,nitorgen and oxygen
2.C. Nucleotides
3.A.Brain
4.D. Polysaccharide
5. B.Amino acids contain nitrogen; fatty acids and sugars do not.
Answer:
(Fill in the blank) When comparing DNA and structural characteristics between plant species, the similarities that appear can indicate a genetic adaptation to a particular environment, between them.
Explanation:
The evolution of the spice indicates that there were changes in the environment where these plants were able to adapt genetically, and not only that but they transmitted it in their generations, that is why many manifest the same genetic code, if this gene was inherited among them it means that the species EVOLVED.
Otherwise, those genes that generate benefits for the plants but are not transmitted in the parent plants will not be considered as an evolutionary change of the species but individual of the plant.
The genetic changes produced by modifications in the environment translate into phenotypic changes, thus generating a more suitable species with a greater chance of survival.
Answer:
The cell membrane is decribe by sandwich model and by fluid mosaic model.
Explanation:fluid mosaic model is used to describe the kinds of protein which are present in cell or plasma membrane ...according to this the cell membrane contain intransic,extrinsic,and conjugate molecule like glycoprotien,glycolipid etc.
