Tropical bird species tend to produce smaller clutches of eggs than temperate bird species. One hypothesis put forward to explain the difference in clutch size is that the time available for gathering food differs between tropical and temperate species. Another hypothesis is that tropical and temperate species have different strategies that affect the quality and overall robustness of individual nestlings. Match each piece of evidence with the hypothesis that it supports. 1. Food-gathering time influences clutch size
2. Quality of each nestling influences clutch size

a. Tropical nestlings develop longer flight feathers and are better fliers when they leave the nest than temperate nestlings.
b. Temperate bird species make more foraging trips per day than tropical bird species.
c. Tropical bird species do not gather food at a faster rate than temperate bird species.
d. Temperate bird species have lower survival rates as adults than tropical bird species.
e. Bird species from both regions can usually at least provide enough food to keep the nestlings in their clutch from starving.
f. Tropical bird species make more foraging trips per nestling than temperate bird species.

Tropical birds are often brightly colored and have long bills. They're omnivores that eat seeds, nuts, fruit and insects. Some tropical birds eat small lizards and animals. Parakeets also belong to exotic and tropical birds.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

picture a world where computers are building made-to-order personalized robotic arms and synthetic organs, drones are circulating above mars! due to the rapid growth of technology, the future has never been more unpredictable, and it presents a huge challenge in education: we are teaching students how to work in a future that we have never been unsure of. it is widely predicted that in eight years’ time, there will be more jobs in the fields of science, mathematics, technology and engineering than in any other discipline. and, as the technology continues to develop, it will soon become clear that addressing social problems will involve more innovative thinking, and analytical and technical knowledge than ever before. undeniably, there are no subjects that encourage innovative and creative thinking, deep thought, problem solving and independence more than the stem subjects. while it is widely commented on that there is a need to reimagine the ways stem subjects are taught in schools by embracing a more interactive and innovative approach to appeal to more students, it should come as no surprise that some of the most reputable educational organizations in the world are already implementing changes to embrace stem. harvard, for example, announced in 2014 that they were increasing their computer science faculty by over 50% and has since introduced computer science as a core subject for all freshmen. the urgency of supporting stem subjects at a young age is becoming more relevant than ever, as adopting a keen interest in the curricula needs to happen early. however, beyond the age issue is one of gender.

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