Answer: E. When one contracts, the other relaxes and this allows the bones to move; triceps and biceps.
Explanation:
Antagonistic action occurs between the two pairs of muscles. In this action one muscle while contracts other muscle relaxes. The example of antagonistic pair is of biceps and triceps. The triceps remain in the relax phase while the biceps contracts so as to lift the arm.
They are part of our immune system they help protecting your body infection,illnesses ,and syndromes etc
The answer is c. Adaptation
Adaptation is a physical characteristic that helps an organism survive in an environment. This help them survive in a natural selections.
The examples are :
- cactus that evolved to change its body structure to retain as much water as possible
- Bat that have adapted their hearing to hunt at night
Salty ocean water because salt is a condesor.
When RNA is transcribed from DNA ( Transcription) and leaves the nucleus, it is called mRNA. This message is “read” by ribosomes in groups of three nucleotides, called a codons
