【题目】课文阅读表达根据课文 Shark attacks 回答以下问题1. How many different types of sharks ar e th er
2. Why do many people know that the most dangerous shark is the white shark?3. What are the fierce sharks mentioned in the passage?4.Why have shark attack been increasing recently? 5.What should we do when a shark attacks us?相关知识点: ...
Many times, they won't dive any deeper than 10 feet (3 meters) in search of food. They can't breathe underwater but can hold their breath for an average of two to four minutes. Eating takes up a bulk of their time, as manatees consume 10 percent of their body weight in sea ...
How many tentacles does a jellyfish have? Many jellyfish have four to eight tentacles hanging from their bell, but some species have hundreds. How many types of jellyfish are there? Studies show that there are around 2,000 types of documented jellyfish around the world. However, as is the...
How many basking sharks are in the world? Basking Sharks: Basking sharks get their name from their tendency to skim along the surface of the water while gathering plankton, small plant and animal organisms that drift on the ocean currents. This makes it appear that the sharks are basking in...
A. Nations Sign Up to Save Sharks B. New Rules Benefit Life in the Ocean C. Sharks Are Vital to Ocean Biodiversity D. CITES Aims to Protect Ocean Species C A new rule has been passed that will protect more than 50 of the world's shark species,many of which are endangered. The deal...
根据本段内容"A team at the University of Western Australia studied the visual systems of many different species of sharks and what they have found is diversity in eye design that mirrors the ecological and behavioral diversity of the shark species. The team looked at the retinal cells of 17 ...
On this episode of Shopify Masters, you’ll learn from two entrepreneurs who built a business where customers help them source raw materials for their products.
others are still making new discoveries on our planet. Among the discoveries that keep piling up are theidentification of various semiprecious stonesand minerals. In fact, there are more than 5,000 different types of minerals, which researchers think is 10 times as many as anywhere else in the...
We’ve been putting cameras on animals for decades in the scientific community and we’ve been doing that in the field of sharks for many years now. So, it wasn’t completely novel, but we wanted to advance our work on tiger sharks to get a better understanding of what a day in the...