Question

what mammal lays egg?​

Answer 1

Answer:

Monotremes are one of the three main groups of living mammals, along with placentals and marsupials. The monotremes are typified by structural differences in their brains, jaws, digestive tract, reproductive tract, and other body parts compared to the more common mammalian types

These three groups are monotremes, marsupials, and the largest group, placental mammals. Monotremes are mammals that lay eggs. The only monotremes that are alive today are the spiny anteater, or echidna, and the platypus.

Answer 2

1. Only two kinds of egg-laying mammals are left on the planet today—the duck-billed platypus and the echidna, or spiny anteater. These odd “monotremes” once dominated Australia, until their pouch-bearing cousins, the marsupials, invaded the land down under 71 million to 54 million years ago and swept them away.
2. Linseed oil is obtained from the seed of the linseed–flax plant, one variety of which produces a high yield of seed and another a high yield of fiber (flax). Dual-purpose varieties are said (Oils and Oilseeds, 1971) to give inferior seed and fiber.
3. Imaging tests used in diagnosing cancer may include a computerized tomography (CT) scan, bone scan, magnetic resonance imaging (MRI), positron emission tomography (PET) scan, ultrasound and X-ray, among others. Biopsy. During a biopsy, your doctor collects a sample of cells for testing in the laboratory.
4. Flax, (Linum usitatissimum), plant of the family Linaceae, cultivated both for its fibre, from which linen yarn and fabric are made, and for its nutritious seeds, called flaxseed or linseed, from which linseed oil is obtained.
5. Ocimum tenuiflorum, also known as Ocimum sanctum, Tulsi, or Holy Basil from the family Lamiaceae has been described as the “Queen of plants” and the “mother medicine of nature” due to its perceived medicinal qualities.
6. Hydrogen is the common element in all acids.
7. Hydrogen is another gas lighter than air; it's even lighter than helium. Hydrogen, however, is not used in balloons and this demonstration shows why. Helium is a special gas called a Noble Gas, which means it doesn't burn. When a match is held near a helium-filled balloon, the balloon pops.
8. Although we may not extra- polate and affirm that bone and dentine are absolutely similar to these mixtures, we can only deduce that the main constituent of bone and dentine mineral is an apatitic phosphate compound with a Ca/P ratio lower than hydroxyapatite (Ca/P= 2*15), the high Ca/P ratio determined by analysis.
9. Peat is the first stage in the formation of coal. Normally, vegetable matter is oxidized to water and carbon dioxide. However, if the plant material accumulates under water, oxygen may not be present and the decomposition is only partial.
10. 1 fathom is equal to 1.8288 metres.

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