Answer:
A closed circulatory system is one in which blood flows though a system of blood vessels throughout the body.
Options for the question are not given. They are as follows:
a. arg or lys
b. ala
c. thr
d. leu or ser
e. Only termination codons
Answer:
d. leu or ser
Explanation:
Four codons code for proline amino acid. These are CCT, CCC, CCA, and CCG. Hydroxylamine causes C to change into T or G to change into A.
If first position is changed in each codon:
CCT = TCT (UCU)
CCC = TCC (UCC)
CCA = TCA (UCA)
CCG = TCG (UCG)
These codons produce Serine amino acid.
If second position is changed in each codon:
CCT = CTT (CUU)
CCC = CTC (CUC)
CCA = CTA (CUA)
CCG = CTG (CUG)
These codons produce Leucine amino acid.
Hence, out of the given options, option d. leu or ser is correct.
The Nervous System and Endocrine Systems are the two systems which are responsible for controlling the whole body of an organism.
<h3>Which organ systems function as control systems, communicating with other cells/organs to regulate their activities?</h3>
The nervous system is the system which controls the system, major controlling, regulatory, and communicating system in the body. The nervous system is the center of all mental activity including learning, memory and thought. Together with the endocrine system, the nervous system is responsible for regulating and maintaining the homeostasis which helps to maintain the internal environment.
So we can conclude that the Nervous System and Endocrine Systems are the two systems which are responsible for controlling the whole body of an organism.
Learn more about Cells here: brainly.com/question/1399230
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Answer:
True
Explanation:
A group of organisms of the same species, living in the same area at the same time.
Answer:
Because different cells are needed for various things. One single cell cannot do everything by itself.
Explanation:
