It carries oxygen to the rest of the body. It can also remove carbon dioxide.
Answer:
sorry man i dont know how to answer this one on brainly
Explanation:
Answer:
An important function of seed dormancy is delayed germination, which allows dispersal and prevents simultaneous germination of all seeds. ... Many species of plants have seeds that delay germination for many months or years, and some seeds can remain in the soil seed bank for more than 50 years before germination.
Answer:
1) Nitrogenous bases
2) Nucleotides
3) Purines
4) Pyrimidines
Explanation:
1) Each one is made up of a pentose , a group, and one of four Nitrogenous bases
2) Adenine, guanine, cytosine and thymine are Nucleotides
3. Adenine and guanine, which have a nine-member double-ring, are called Purines
4. Cytosine and thymine, which have a six-member single-ring, are called Pyrimidines