The fish that eat plants have smaller mouths and teeth. The fish that eat other fish need larger mouths and stronger teeth.Fish are usually dark on the top and light on the bottom.(A)1. Fish start as ___. A. eggs B. fish C. food D. plants( B)2. At the very beginning the ...
The article discusses an article in "The Wall Street Journal" which discusses the possibility that carnivorous saltwater fish can one day be farmed on a plant-based diet, according to researchers at the Institute of Marine and Environmental Tec...
3. Bears live mainly on meat and fish, but sometimes they eat plants and ___(昆虫). After he ___(injure) a wound of 11 (伤的) bird, he decided to help it.相关知识点: 试题来源: 解析 insects;injured 第一空需要填入表示“昆虫”的名词,即“insects”。第二空需要填入表示“受伤”的动词...
If you have used an algaecide in your aquarium to remove algae, the large amounts of rotting algae can be fouling the water which can cause the fish, live plants, and invertebrates in the aquarium to die. Algae blooms produce a toxin that is lethal to fish known as algal toxins. These...
【解析】首先题目给定的词“main”为形容词,意为“主要”,而句子中有动词“live”,因此我们可以知道句子中缺少修饰动词“live”的词语,而修饰动词的只有副词,所以我们需要将“main”变成副词形式“mainly”,故答案为“mainly”。 反馈 收藏
51. Why are researchers, seeking for plant-based sources of food to feed fish?APlants can be found and grown very easily.BPlants are more environmentally fri.CPlants are much hardier.DPlants have healthy, ogen-boosting genes.相关知识点: ...
Moreover, their mouths have rostral barbels. They act as taste receptors and aid them in targeting certain food items. It is why they prefer to eat hair algae and black beard algae. The only downside for this algae-eating fish is that they also love to eat live plants. ...
Soil doesn't always have the nutrients that plants need to grow, so the students would need natural helpers."可知,这个地方的人很贫困, 且自然环境很恶劣,不适合种植。 故选C项。 27.D 【解析】细节理解题。 根据“To solve the problem, the school set up a system in which fish poop makes ...
help create a balance between plants and fish. Remember, however, that larger fish need more food than small ones, so they may take a look at your plants for snacks if not fed enough. Not to mention, feeding koi and pond fish adds fun and enjoyment to Living the Aquascape Lifestyle®...
A 1.A 解析:语境暗示题。本句中的fish, other sharks, and plants均为上一句中food的具体解释,可知选A符合语境。 结果一 题目 A. Sharks eat fish, otherASharks have lived in the world's oceans for millions of years. A shark hassharks, and plants thatan extremely good sense of smell.It can...