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Andrew [12]
3 years ago
5

How does a maglev train work

Biology
1 answer:
aivan3 [116]3 years ago
7 0
<span>Every magnet has a north pole and a south pole. Similar poles of two magnets repel each other; opposite poles attract each other.</span>
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Why cycus are called conifer? give its 3major characteristics features​
Licemer1 [7]

Answer:

Cycads /ˈsaɪkædz/ are seed plants that typically have a stout and woody (ligneous) trunk with a crown of large, hard, stiff, evergreen and (usually) pinnate leaves. The species are dioecious, therefore the individual plants of a species are either male or female. Cycads vary in size from having trunks only a few centimeters to several meters tall. They typically grow very slowly[3] and live very long, with some specimens known to be as much as 1,000 years old.[citation needed] Because of their superficial resemblance, they are sometimes mistaken for palms or ferns, but they are not closely related to either group.

Cycads are gymnosperms (naked seeded), meaning their unfertilized seeds are open to the air to be directly fertilized by pollination, as contrasted with angiosperms, which have enclosed seeds with more complex fertilization arrangements. Cycads have very specialized pollinators, usually a specific species of beetle. Both male and female cycads bear cones (strobili), somewhat similar to conifer cones.

Cycads have been reported to fix nitrogen in association with various cyanobacteria living in the roots (the "coralloid" roots).[4] These photosynthetic bacteria produce a neurotoxin called BMAA that is found in the seeds of cycads. This neurotoxin may enter a human food chain as the cycad seeds may be eaten directly as a source of flour by humans or by wild or feral animals such as bats, and humans may eat these animals. It is hypothesized that this is a source of some neurological diseases in humans.[5][6]

Cycads all over the world are in decline, with four species on the brink of extinction and seven species having fewer than 100 plants left in the wild.[7] The plant has a very long fossil history, with evidence that they existed in greater abundance and in greater diversity before the Jurassic and late Triassic mass extinction events.

Explanation:

~Dr.Smiley~

(Jane)

8 0
2 years ago
What are preserved remains that shed light on past animals?
Daniel [21]
The answer would be fossils since they are they remains of past life forms
3 0
3 years ago
Name and describe three ways in which populations can become isolated.
erica [24]

Answer:1. not enough natural ingredients like food and water, 2. the people your are surrounded in the environment, 3. the laws or rules that apply to living in gov./environment

Explanation:

1. maybe there aren't enough local stores in your area and you have to walk or drive miles just to get there, 2. maybe you have some connotation with people around you, or they themselves are setting good examples for you or your family, the community is too crowded, 3.maybe you want to leave a country because the system doesn't work for you, discrimination laws or a form of unfairness and mistreatment. maybe  too intrusive.

8 0
3 years ago
Read 2 more answers
Which part of the root allows it to grow deep inside the soil in search of water? A. epidermis B. cortex C. root tip
Zepler [3.9K]
The root tip allows the plant to grow deeper into the soil
3 0
3 years ago
You are working in an outpatient clinic when a mother brings in her 20-year-old daughter, C.J., who has type 1 diabetes mellitus
lbvjy [14]

Answer:

The additional questions are listed in the explanation

Explanation:

1. For how long has C.J. been drowsy

2.  What have C.J.'s blood glucose levels been running?

3. How much fluid has C.J. been able to keep down over the past 3 days?

4. How often has C.J. been vomiting over the past 3 days?

4 0
3 years ago
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