4. Why must earthworms come out of the earth if it rains a lot?5. When can we easily find earthworms? 相关知识点: 试题来源: 解析 IV. 1. About 1,800. 2. It means rainy.3. Because they breathe through their skin, and theycan't breathe if their skin gets too dry.4. Because ...
Why must earthworms come out of the earth if it rains a lot?A. Because they also can't breathe in their flooded burrows.B. Because they like cool and damp weather.C. Because they can hunt for food.D. Because they can burrow into the earth.(B)5. When can we find earthworms easily...
Do you know how many kinds of earthworms (蚯蚓) there are? There are about one thousand and eight hundred kinds in the world! They can be brown, purple, red, blue and green. They can be as small as 3 cm long and as large as 3 meters long. The best time to see earthworms is ...
You may further find that the total wet biomass of all these worms equals 10 times the total weight of all the animals living aboveground on that same plot of land [source: Green-Pik]. Yet as ubiquitous as earthworms are, there is much we only recently have come to learn about them. ...
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Earthworms like to be in the sun.4. Earthworms must come out of the earth ifit rains a lot because__.A. they can't breatheB. they can find food easilyC. they can stay in the sunD. they can't find their holes5. We can easily find earthworms when __.A. it is a sunny dayB....
earthworms are non-native, invasive species from Europe. Nightcrawlers (Lumbricus terrestris) are the most common earthworm species found in lawns. They are brownish-red in color and grow up to a few inches long. Where to Buy Earthworms You can find earthworms at lawn and garden centers, and...
aAs earthworms are a measure of soil fertility, so are they indicators of soil management practices. Consequently, the use of earthworms to our benefit depends not only upon a knowledge of their activities but also upon an awareness of how our own activities, in particular agricultural practices,...
What earthworms look like Earthworms aren’t actually insects per se, but they’re one of the most beneficial bugs out there for the lawn and garden. Earthworms are long, thick worms covered in circular bands from end to end. They range in color from brown to gray to pinkish. ...
Too much organic material yields too much nitrogen and water, but too little will not support many soil organisms (earthworms). Get Your Feet Wet Grapes get loaded into a crusher at the winery. Photo courtesy Chatham Hill Winery In the fall, it is crush time. The grapes are harvested...