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Masteriza [31]
3 years ago
13

Differences between pteridophyta and spermatophyta ​

Biology
1 answer:
LenKa [72]3 years ago
7 0

Answer:

Pteridophytes are vascular plants but they do not produce flowers and seeds which mean their source of reproduction is unknown or hidden.

On the contrary, Spermatophytes as the name indicates, are seed bearing plants. They produced seeds and flowers. Examples are flowering plants, cactus, leather flower, buttercup and may more.

Explanation:

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In physical science, what does MYA mean when referring to age?
Yuki888 [10]
Mya= Million Years Ago :)
3 0
3 years ago
Imagine that a biologist deposits 50 isopods on the surface of the leaf litter in a forest. the back ofeach isopod is marked wit
zhannawk [14.2K]

Answer:

The isopods will be found under the leaf litter.

Explanation:

Isopods are crustaceans and they live in freshwater, marine water or on land. The forms of isopods that are found on land mostly prefer the cool and moist environment.

As the biologist will leave them on leaf litter, they will crawl to the area under the leaf because the area under the leaf litter is relatively cool and moist and there they can get an environment which is suitable for their living. Thus when the biologist will come after one hour, most of the isopods will be found under the leaf litter.

8 0
3 years ago
You study a gene called hmr-1, which is essential for cell-cell adhesion. You find that it is expressed in specific cells, but y
notsponge [240]

Answer:

A. gtp gene (coding region, 5 and 3 UTRs) fused downstream to the hm-1 gene. The hml-1 gene will include its original regulatory sequences as well as its coding region and its S'UTR) and 3 UTRs) used downstream to the gtp gene. The gtp gene will include its original regulatory sequences as well as its

Explanation:

when the fusion between GFP and the hmr-1 gene occurs downstream, the location of the latter can be monitored by means of fluorescence

7 0
4 years ago
The Marianas trench contains Challenger Deep, the deepest point in the ocean floor that we know of today. Challenger Deep is loc
ArbitrLikvidat [17]

Answer:

Above the floor of challenger deep, the ocean zone located would be the <u>Hadal zone .</u>

Explanation:-

<u>THE CHALLENGER DEEP </u>-  The deepest location in the ocean is the Challenger Deep, at the southern end of the Mariana Trench (sometimes called the Marianas Trench). It is difficult to measure its depth from the surface, but modern estimates vary from 305 meters (less than 1,000 feet). The Challenger Deep 's great depth is due to the successful steepening of the subducting slab along a region of poor link with the overriding plate tearing away from the northern part of the Mariana Trench in the southern part of the Mariana Trench.

<u>THE HADAL ZONE </u>-: The Hadal zone (named in Greek mythology after the domain of Hades, the underworld),, is the ocean's deepest area lying within oceanic trenches. The hadal zone is located at a depth of about 6,000 to 11,000 meters (20,000 to 36,000 feet) and is present in long but narrow V-shaped topographic depressions.

Hence, the answer is Hadal zone ,which is located just above the floor of Challenger Deep.

4 0
3 years ago
Which of the following events would most likely produce an earthquake?
Naya [18.7K]

Answer:

C

Explanation:

3 0
3 years ago
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