Answer: b. birds have beak adapted to break open hard shells.
Birds in the rain forests are adapted to perform different functions. It helps birds to capture their food, groom their features, defend their territories and attack predators. The shape of the beak defines a particular ecological niche of a particular bird. The shape of the beak are specially adapted to eat foods such as seeds, fruits, insects. The beaks becomes hard and pointed in order to break open pods, seeds, fruits available as food source in rain forests. Therefore, adaptation in beak allows birds to feed different types of food and allows them to switch to different sources of food if one source becomes scare in the rain forests.
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
brainly.com/question/28283964
#SPJ4
I don't see the image but I'll just put input answers based on what I know.
Characteristics of an Earthworm.
1) From the Phylum Annelida
2) Displays Bilateral Symmetry, NOT RADIAL SYMMETRY
3) Has a true coelom
4) IS SEGMENTED
I think it depends on what kind of cancer they’re talking about
Mendel said that the factors that control a trait exist in pairs. TRUE
