Answer:
Black
Explanation:
The paper absorbs light of all visible wavelengths.
No visible light is reflected.
The paper will appear black to human eyes.
Answer:
The correct answer is D) dendrites; cell body; axon
Explanation:
Neurons cells makes the nervous system and are responsible for carrying the information from one body part to the other body parts. A neuron has three distinct parts dendrites and axon.
Dendrites are the neurons extension which receives the impulse and transfers to the cell body. We can link dendrite with our fingers. Cell body is a spherical part of neuron like our palm and it controls all functions of the cell. Then from cell body signals are transferred to axons.
Axon is a long part of the nerve cell like our hand which helps in transmitting the signals to the next neurons. Therefore the correct answer is D.
A lipid does, it forms a phospholipid bilayer.
Answer:
A and F are phosphate groups.
B and E are sugars.
C and D are nitrogenous bases.
Explanation:
Nucleotides are the molecules responsible for composing DNA and RNA. They are formed by three units: a phosphate group, a sugar molecule and a nitrogenous base.
The sugar molecule is a pentose, which means that it is a molecule formed by 5 carbons. These collections are represented by geometrical figures such as the letters "B" and "E" shown in the figure above, where each tip represents a carbon.
The nitrogenous bases are molecules that are named adenine (A) and guanine (G) and the pyrimidine bases cytosine (C), uracil (U) and thymine (T).
The phosphate group, in turn, is a molecule derived from phosphoric acid and is the only one that does not vary in each nucleotide.
