Are stomata open during the day or night ?

What maintain homeostasis when a persons internal body temperature is 97.5°f

The activity of the modern sample is 1.10 bq . how long does that measurement take?

Which of the following are not matched correctly? cd8+: directly destroy infected or cancerous cells t reg cell: reduce the adaptive response once threat passes t l: activate cellular branch (cytotoxic t cells, macrophages, nk cells) t 2: stimulate b cells to make antibodies t (cd4+): mhc i