Fossil evidence shows that toothed leaves were present in Bighorn basin during the Paleocene and Eocene, but not during the PETM. Which of the following explains the changes in the fossils over this time?
The rate of the temperature change during the Eocene was too fast, driving toothed plants to extinction.
The temperature change was slow enough during the Paleocene that certain species could migrate, then return when temperatures
returned.
The rate of the temperature change during the PETM was faster than during the other eras, driving toothed plants to extinction.
The temperature change was slow enough during the PETM that certain species could migrate, then return when temperatures
returned.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.

idk about that one.

the cell is the smallest structural and functional unit of living organisms, which can exist on its own. therefore, it is sometimes called the building block of life. some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.