B. The deep affection for wild animals.C The gold mine in northeastern Congo. D. The forest destruction caused by mining.26. What is Adams trying to achieve in partnership with the police officers?A. A uniform rul...
25) and neurodevelopmental26 explanations for systematic behavioural differences. Recently, dogs have been proposed as an ideal natural model for the study of several cognitive and behavioural traits that are shared with humans. Dogs are easily available and tractable subjects and, because they evolved...
caused by human activities. For example, many birds depend on stars for direction, but they get lost easily at night when city lights are kept on all night. To solve this problem, we can simply turn off some lights at night. Clearly, one small act of humans may mean a lot to animals...
Earth is home for all living things—humans, animals, plants, and even tiny microbes (微生物). An ecologist is a scientist who studies the 3 between organisms (生物) and their environment. The environment is an organism’s surroundings. It may 4 water, gases, rocks, and temperature. An ...
developed For most of human history, humans hunted animals and gathered wild food such as fruit, seeds and nuts in order to survive. It was not until the " 1 revolution" 10, 000years ago, which is quite recent in terms of world history, that we began to grow enough food to live on...
Some animals can sense the earth’s magnetic field (磁场), while humans can’t. This magnetic field guides a certain kind of fish when they swim a long way to a place and then back. How can this kind of fish do that...
根据文章第二段内容尤其是第一句话“This was an aha moment for me, and I never thought about endings the same way again.(这对我来说是一个顿悟的时刻。我没有再以同样的方式去想结局。)”可知,在见过格雷西教授后,作者发现虽然自己不喜欢书的结局,但是对主人公来说却是最合理的,即作者意识到每种文学...
of headphones can minimize noise and help students stay on task．Indeed,where and how we study can be a source of distraction as well．Some students wear comfortable pajamas while lying on their beds with laptops to watch class lectures．This can be a problem for concentration because humans ...
Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER ISHEET 1. The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, (1) this is largely because, (2) animals, we stand upright. This means that ...
the given word; for the other blanks, use one word that best fits each blank. Preserving Foods Early humans had to rely on the environment to find food. Men hunted animals or caught fish while women gathered fruits and nuts. However, if the food was not eaten quickly, it would spoil an...