Answer:
- They have dorsal nerve chord.
- They have pair gilled pouches.
- They breathe through gills.
- They have a notochord.
- They are coelomate.
Explanation:
✌Hope I helped ya.✌
Brainliest would be nice
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Answer: Yes, estimation of a population of plant species in a given area. The tool I used was a QUADRAT.
Explanation:
Plants in a small area are easy to count and their distribution is recorded on a map or scale diagram for the area. For larger areas, quadrats are used to obtain a fairly accurate estimate of the number and types of plants in those large areas.
The ESTIMATION of the population of plants can be done using a method called the quadrat sampling method. Here, a QUADRAT which is a rectangular or square frame(tool) made from thick wire, is thrown at random several times. On each landing, the area covered by if is observed. The type of species and their number within the quadrat are recorded. The average number of times each species appears is calculated and the most frequent or dominant species is then determined.
Some quadrats are specially made to mark off an area for the study of seasonal variations of plants. They are sturdier, larger and permanent and can thus serve their purpose through the seasons. These quadrats often have a mapping grid attached so that the flora within it can be mapped at regular intervals.
Answer:
d.They are still very common ,but threatened with increasing harvesting for timber.
Explanation:
Brazil's Araucaria trees:
These trees are very soft and can be cut so easily.Brazilian pines is also know as Araucaria tree.
Before 1950's or 60's the number of trees were more but now due to harvesting the number of trees become less.The these trees are used for timber and for glue also.
In the present time the availability of these trees threatened with increasing harvesting for timber.
So the our option d is correct.
Answer:
Rhino and owl are closely related.
The are closer on the limb.
Explanation:
This is because cladogram can be used to show species that are closely related. It is a diagram that indicates evolutionary relationships that exist between organisms.
Owl and Rhino are closely related because they have some traits in common and their limbs are close
B. ATP contains less potential energy than ADP.