Where do scientists think early mammals came from

Vitamin b12 is essential for the proper functioning of which type of cells?

timurjin [86]

<span>nerve cells need b 12 for proper functioning</span>

4 0

3 years ago

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

What is a way the skin helps to maintain homeostasis?

zhenek [66]

Skin maintains homeostasis by regulating your body temperature. <span />

5 0

3 years ago

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Water’s poler properties allow it to dissolve a wide range of compounds and assist these molecules with moving into and out of c