Each DNA strand within the double helix is a long, linear molecule made of smaller units called nucleotides that form a chain. The chemical backbones of the double helix are made up of sugar and phosphate molecules that are connected by chemicals bonds, known as sugar phosphate backbones.
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<h2>(d) is the correct option </h2>
Explanation:
Flank pain refers to discomfort in upper abdomen or back and sides
- The kidneys are located on either side of the spine, under the rib cage
- The right kidney hangs a little lower than the left, making it even more likely to cause lower back pain if it's infected, irritated, or inflamed
- A kidney contusion, often called a kidney bruise, occurs following blunt trauma or direct impact to the lower back
- This trauma leads to bleeding inside of the kidney which may also cause pain, tenderness, and discoloration of the skin
- The back muscles and rib cage of human body protect the kidneys
- If a kidney becomes injured there is a chance that one has injured other muscles and bones
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The answers are transcription; translation
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This process is called Facilitated diffusion. because the protein channels must help the substance get into the cell based on fitting. It's important to regulating what comes in and goes out.
Answer:
The statements in options A,B,C,D and E are all correct.
A. Invertebrates lack a back bone
B. Ecdysozoans typically posses a flexible exoskeleton that protects these animals from harmful external factors like water loss.
C. Deuterstomia, Lophotrochozoa and Ecdysozoa are classes of Bilaterians.
D. Animal A is a bilateral because bilateral embryos are triploblastic possessing three germ layers, are bilaterally symmetrical and lack a back bone.
E. All animal from studies are found to have a common ancestry.
