Smoking places you at serious risk of cardiovascular and respiratory disease.
The sex of the embryo is predetermined at fertilization.
It involved research in genetics, plant breeding, plant pathology, entomology, agronomy, soil science, and cereal technology.
This view has caused great controversy: Black Americans have fallen into a "tangle of pathology".
During the winter the seeds lie dormant in the soil.
The pupae remain dormant in the soil until they emerge as adult moths in the winter. pupae 蛹
Without gravity to help circulate air, the carbon dioxide you exhale has a tendency to form an invisible cloud around your head.
She was given artificial respiration and cardiac massage.
The living space of the amphibian is much larger than that of others.
With our present data, we don't know what precisely the interactions were between a primate and a big carnivore.
Hybrid cars can go almost 600 miles between refuelling.
混合动力汽车 hybrid car
hybrid rice 杂交水稻
I mean, crocodiles' brains are the most developed of any reptile.
indigenous population 土著
Surprisingly few extinctions of indigenous species can be attributed to competition from introduced species.
alien species invade 外来物种
Some seed varieties germinate fast, so check every day or so.
But, unlike sunlight, the light from these LEDs did not support photosynthesis.
He used to breed dogs for the police.
Frogs will usually breed in any convenient pond.
Like the old song says, there's no place like home, not because of the real estate, but because of the sense of shelter and nurture that it provides.
Your intake of alcohol should not exceed two units per day.
How long will I be under the anaesthetic ?
You'll be under anaesthetic, so you won't feel a thing.
He despised the esthetic of minimalism. 极简派艺术
biotic community 生物群落
They're all groaning about soaring health budgets, the fastest-growing component of which are pharmaceutical costs.
I have an allergy to animal hair.
The speed with which digital cameras can take, process, and transmit an image is phenomenal.
The patient suffered severe brain trauma.
depressive disorder、depression 抑郁症
The orbit of this comet intersects the orbit of the Earth.
A monsoon is a seasonal wind that can bring in a large amount of rainfall.
The tidal stream or current gradually decreases in the shallows.浅滩
When plants pioneered the land, they faced a range of challenges posed by terrestrial environments.
Twenty million years ago, Idaho was not the arid place it is now. Rather, it was warm and damp, populated by dense primordial forest.
Ash began to erupt from the crater.
A liquid layer forms at the base of the glacier.