Answer:
C. Nucleic Acids arranged in a double helix.
Explanation:
The structure of DNA is best described as a double helix. DNA has a sugar phosphate back and nucleotides connected by covalent bonds. Together, it looks like a twisted ladder which is also known the double helix.
Answer:
hope this helps! :)
Explanation:
1. reproduction
2. support (kind of like bones to support the body so it doesn't fall down)
3. transporting the materials (like the nutrients to different parts of the plant)
4. able to get water and nutrients from the soil
5. retaining water and prevents water loss
Answer:
The tiny muscles that make up the iris, known as the circular and radial muscles, relax and contract to maintain a fairly constant level of light entering the eye. In bright light, the circular muscles contract whilst the radial muscles relax. This causes the pupil to constrict and less light enters the eye.
Explanation:
The correct term for on female arctic fox would be "organism". Although it should be noted that this depends somewhat on the context of the environment.
