The answer should be C, the heart and the blood vessels.
The heart acts as a pump in the circulatory system. It pumps blood to organs and tissues all around the body. Meanwhile, the blood vessels (arteries, veins, and capillaries) help transport the blood to tissue and cells and back to the heart. Each type of blood vessel has their own function.
The brain is not involved in this system, as the whole circulation process does not require any us to make any decision.
In addition, there's also one structure that is in the blood vessels, but technically not another item for the circulatory system. That's valves, they are like flaps that ensure blood flowing in one wag direction and to prevent the back flow of blood.
So, the answer is C.
Answer:
The appropriate order for the basic steps of protein synthesis are listed below
Explanation:
First step D The large ribosomal subunit joins the initiation complex preparing it for elongation stage.
Second step C Binding of mRNA by small Sub unit followed by association of a particular initiator aminoacyl tRNA that recognizes the first codon.
Third step B The P site is occupied by peptidyl tRNA carrying the growing polypeptide chain.
Fourth step A The elongation reaction transfers the peptide chain from the peptidyl tRNA in the p site to the aminoacyl tRNA in the A site.
Fifth step E The new longer Peptidyl tRNA moves from A site into the p site as the ribosome moves one codon further along the mRNA.
Answer:
The waste products are Carbon Dioxide and Water.
Explanation:
They don't have ovaries !!
so they don't turn into fruits and thus seeds are naked !!
