Answer: A) transcription Explanation: Protein synthesis at the ribosome is immediately preceeded by the transcription process.

(B) Spleen

The organ primarily affected by malaria is the spleen. Malaria is a parasitic infection caused by Plasmodium parasites that are transmitted through the bites of infected mosquitoes. The parasites multiply in the liver and then infect red blood cells, leading to symptoms such as fever, chills, and an enlarged spleen. The spleen plays a crucial role in the immune response against malaria, but the infection can cause it to enlarge as it filters out infected red blood cells from the circulation. If left untreated, severe cases of malaria can lead to complications, including damage to the spleen and other organs.

Answer: B) They are the sites at which microtubules attach to chromosomes. Explanation: They are the sites at which microtubules attach to chromosomes.

Answer: A) taking in carbon dioxide and making carbohydrates (sugars) Explanation: Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms activities.

Answer: A) Chloroplasts Explanation: Chloroplasts contains chlorophyll, the green substance in plants that allows them to create food from carbon dioxide and water called as photosynthesis.