Answer: B. Closed
In a closed circulatory system is the one in which the blood is circulated to all the parts of the body of the organism through vessels of different length and width. In this system the blood is pumped from the heart through blood vessels where it is transported to different organs and cells of the body instead of filling up the body cavity.
My guess would be D.. Not for sure tho.
Answer:
The repeating subunits of DNA are ribonucleotides whereas in RNA they are deoxyribonucleotides.
Explanation:
Ribonucleotides are repeating subunit of RNA while the deoxy-ribonucleotides are repeating subunits of DNA. That why RNA full form represent the ribonucleic acid and DNA represent deoxyribonucleic acid.
Actually the word "deoxy" means one oxygen is removed or less in DNA. The DNA lacks the one oxygen atom of hydroxyl group at carbon number two of ribose sugar. While RNA have the hydroxyl group at carbon number two of hydrogen atom.
The removal of one hydrogen atom in DNA make it more stable than RNA because DNA is made specifically to store genetic information and needed to be strong. The oxygen atom in RNA makes it vulnerable for attack by other biological molecules.
Organisms are classified into domains and kingdoms based on their cell type, their ability to make food, and the number of cells in their bodies.
Hope this helped :)
Sensory receptors convert stimulus into electrical signals by signal transduction.
<h3>What is sensory receptors?.</h3>
Sensory receptors are found in specialized organs such as the eyes, ears, nose, and mouth, as well as internal organs. Each receptor type transmit stimulus or sensory modality which is interpreted to electrical signal and into a single perceptual frame eventually.
Therefore, Sensory receptors convert stimulus into electrical signals by signal transduction.
Learn more about sensory receptors here.
brainly.com/question/9173579
