However, a deficit in loss of function mutants in humans indicated that THBS1 is also highly loss-intolerant. In addi- tion to roles in embryonic development or adult reproduction, genes may be loss-intolerant in humans because their function is needed to survive environmental stresses that are ...
根据设空处后文“Why do we consider this important? A wide variety of animals means greater productivity and better health. If there are fewer animal species, a disease that affects any species spreads faster and more effectively.(为什么我们认为这很重要?种类繁多的动物意味着更高的生产力和更好的...
Without the sun, plants can't get the food they need to grow, reproduce and survive. Unlike animals, plants are autotrophs, meaning they create their own food source. They use energy from light or from the sun, water and gases from the air to create glucose. This process is photosynthes...
Some wild animals, such as reptiles and hedgehogs can actually carry bacteria called salmonella, which is very easily transmitted to humans. Exotic animals can be very social, and need to have a companion of the same species living with them. If the animal is kept isolated from its kind, ...
Hibernating brown bears do not have this capacity and must therefore resort to major bone reformation in the following spring. If the mechanism of bone remodelling in polar bears can be understood, many bedridden humans, and even astronauts, could potentially benefit. The medical benefits of the...
humans, mutations of this gene are associated with increased risk of heart disease. Polar bears may 类身上 这种基因的变异 与更高风险的心脏病有关。 因此北极熊 therefore be an important study model to understand heart disease in humans.
E Habitat does not have to be completely removed to lose its usefulness to an organism.G Nearly all plants and animals require food, water, and shelter to survive, just as humans do. 相关知识点: 试题来源: 解析 A 篇章导读 物种栖息地的丧失、过度开采和猎杀都是导致 物种濒危的原因,而...
Animals need a habitat because like humans, they have specific needs that must be met in order for them to survive. Animals must live in places where...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
there was no evidence of significant loss of bone density. Hibernating brown bears do not have this capacity and must therefore resort to major bone reformation in the following spring. If the mechanism of bone remodelling in polar bears can be understood, many bedridden humans, and even astronau...
Plants need it to grow, animals need it to survive, and the human body needs it to stay hydrated and keep functioning.植物靠它生长，动物赖以生存，人体需要它来保持水分，维持机体正常运作。Water is an essential building block to life and it comes to us from above.水是生命的基本组成部分，它...