The answer to the question given is letter D. The cones are diploid.
The true reproduction in a pine tree is its cones which are diploid. <span> Conifers has both male and female cones. Once the ovule is fertilized, a </span>diploid<span> sporophyte is produced, which gives rise to the </span><span>embryo.</span>
The labeling of the cell represents.
The label A is Nucleus: The nucleus of the cell carries the hereditary material DNA from one generation to another generation. This carries the traits from one generation to another.
The label B is Cytoplasm: This is the fluid part of the cell which has all the organelles floating in it.
The label C is ribosomes: It is the an organelle present in that that is responsible for the protein synthesis.
The label D is Nucleolus: It is known to be the largest structure in the nucleus of the eukaryotic cell. It helps in the signal recognition pathway.
Cell membranes are important because they protect the cell and control the materials that flow in and out of it. Lipids are needed in order to create the membranes in the cell.
The correct answer would be all of the above. The bone marrow is where both types of blood cells are formed: red blood cells or erythrocytes and white blood cells of lymphocytes, along with cells that help defend the body against diseases and germs, which is the same as white blood cells. Red blood cells are vital in providing oxygen to cells as fuel whole white blood cells are responsible for maintaining immunity.