Answer:
silicon-32
Explantion: Silicon is a chemical element that has atomic number 14 and is located in group 14 in the periodic table. Silicon has 23 recognized isotopes, with mass numbers from 22 to 44. The oldest lived radioisotope is Silicon-32, and its half-life has been examined to be around 150 years. Silicon-32 is formed in the atmosphere by cosmic ray spallation of argon and is released on the surface of the earth in precipitation.
Asexual is where you dont need a partner and can reproduce on your own and sexually is when you need to partners to reproduce.
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Photosynthesis starts when a photon- a tiny packet of light is absorbing a molecule of chlorophyll.
The correct term to fill in the blank would be cortisol. In the context of stress hormones and the brain, cortisol has a profound effect on the hippocampus, a brain structure that plays a pivotal role in memory. Cortisol is classified as a steroid hormone which is produced by the adrenal gland. It is deemed as the stress hormone as it is released as a response to stress as part of the fight or flight process. From studies, cortisol was found to have effect on the hippocampus when present in high levels. It damage and kill the cells in that area of the brain. The hippocampus is the area of the brain that is responsible for the long term memory storage. So, when this part is damage then the storage for our memories would surely be affected.