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Mumz [18]
3 years ago
9

Nitrogen is one the important elements for life. Nitrogen is present in dna and proteins.

Biology
1 answer:
ryzh [129]3 years ago
5 0

Answer:

This is anmy science question so you can see this answer from meritnation

Explanation:

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All living things have cellular organization
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Why do plant cells have both chloroplasts and mitochondria?
MrMuchimi
In plants, the chloroplast is necessary to photosynthesis, and mitochondria contain enzymes responsible for producing energy
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A researcher investigates a recently discovered species of plant. The plant has vascular tissues and exhibits a sporophyte and a
Anna71 [15]

The plant contains vascular tissue and has an alternation of generation. But, it lacks seeds. So, the plant is a Pteridophyte.

  • Vascular tissues are absent in thallophytes and bryophytes. They are found in pteridophytes, gymnosperms and angiosperms.
  • The sporophyte and gametophyte generation is common in bryophytes and pteridophytes.
  • Seeds are produced in plants that come under the group gymnosperms and angiosperms. The presence of seeds is the main characteristic of these groups.
  • Thallophytes, bryophytes and pteridophytes lack seeds. The reproduction in plants that comes under these groups occurs with the help of spores.

Thus, the recently discovered species of the plant should be classified based on the presence of vascular tissues, gametophytes and sporophytes. As pteridophytes contain vascular tissues, sporophytes and gametophytes and lack seeds, the plant is a pteridophyte

Learn more about pteridophytes here:

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6 0
2 years ago
Types of minerals change in heated (First blank) area rock. A record of biological time can be found in (second blank) area rock
Elina [12.6K]

Answer:

Types of minerals change in heated<u><em> metamorphic </em></u>area rock. A record of biological time can be found in <u><em>sedimentary</em></u> area rock. Matter changes state from liquid to solid to form<u><em> igneous </em></u>area rock

Explanation:

Metamorphic rocks can be described as a type of rocks which arise by the phenomenon of metamorphism. Immense heat and pressure changes previous rocks (sedimentary, igneous or other metamorphic rocks) into metamorphic rocks.

Sedimentary rocks can be described as the type of rocks which are made by the deposition of minerals or organic particles and hence, help in evolutionary studies.

Igneous rocks can be described as the rocks which are made from lava or magma (hence changing state from liquid to solid).

3 0
3 years ago
Dr. Semmelweis, a physician from Austria, wanted to locate the cause of childbed
tatuchka [14]

Answer:

Hypothesis

Explanation:

A hypothesis is an educated guess, based on evidence provided by the initial question the scientist had. I hope I helped you:)

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3 years ago
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