Chloroplasts convert sunlight (energy) with water and carbon dioxide gas to produce sugar (food) for plants and some types of alge. They do this process with chlorophyll and the process itself is called photosynthesis. In a good number of plants this process has two systems the photosystem I and photosystem II.
Both A and B, let me know if the answer is correct!
Sympathetic-adreno-medullar (SAM) axis, secretes noradrenaline and norepinephrine and the hypothalamus-pituitary-adrenal (HPA) axis, secretes glucocorticoids during stress.
SAM (Sympathetic-adreno-medullar) axis activation occurs in just a seconds as a result of a stressor and generate a adaptive respond towards stressor. The HPA axis is a slower response system involving release of corticosteroids .
Corticosteroids are corticotropin releasing hormone, adrenocorticotropic hormone, and cortisol, Which suppress the immune system . Corticotropin-releasing factor (CRF) plays a major role in the stress response by regulating the hypothalamic-pituitary-adrenal (HPA) axis.
To learn more about Corticosteroids , here
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Answer:
A) boreal forest and tundra
Explanation:
Boreal forests are present north of 50-60 degree north latitude. Tundra biomes are also called as arctic tundra and are also located in extremes of the north latitude. Boreal forests are world' largest biome and stretches across both North America and Eurasia. So, the two habitats are found at high latitudes among the given options are: boreal forest and tundra.
