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.
Explanation:
Cuando los niveles de testosterona están bajos, la hormona liberadora de gonadotrofina (GnRH) es liberada por el hipotálamo que a su vez estimula la glándula pituitaria para liberar LH. Esta última hormona estimula los testículos para sintetizar la testosterona.
The correct answer is - A) Swamps tend to be humid while deserts tend to be dry.
The swamps are places that are dominated by shallow, murky waters. The precipitation at these places is relatively high, and the climate tends to be pretty stable throughout the year, being relatively warm. Because of the precipitation, the water surface, and the temperatures, the swamps tend to be very humid places.
The deserts are the total opposite. They are dry all year round, with maybe one or two days in the year where precipitation will occur, though occasionally that may be once every several years. Depending on the type of desert, the climate is either very hot all year and very dry, or very hot in the summer and very cold in the winter and dry.
False. Both animals and plants carry out cellular respiration.