Compare and contrast a fossil and a trilobite.(1 point) A (Both fossils and trilobites are relativity new, both being around 1,000 years old. However, fossils are only found under water, whereas trilobites are found all over the globe.

B (Both fossils and trilobites are relativity new, both being around 1,000 years old. However, trilobites are only found on the bottom of the ocean, whereas fossils are found only on land.

C (Both fossils and trilobites are extremely old. However, a fossil was a creature that was living on Earth at some point that over time turned into a trilobite, meaning a fossil is one type of many different types of creatures found in trilobites.

D (Both fossils and trilobites are extremely old. However, a trilobite was a creature that was living on Earth at some point that over time turned into a fossil, meaning a trilobite is one type of many different types of creatures found in fossils.

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Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated. 1. sporophyte dominance, gametophyte independence 2. sporophyte dominance, gametophyte dependence 3. gametophyte dominance, sporophyte dependence a) 1 → 2 → 3 b) 2 → 3 → 1 c) 2 → 1 → 3 d) 3 → 2 → 1 e) 3 → 1 → 2

Ineed the answer asap. in order to be considered alive, an organism must simultaneously possess the characteristics of homeostasis, heredity, cells, reproduction, and

To answer this question, researchers studied populations of the dusky salamander (desmognathus ochrophaeus) living on different mountain ranges in the southern appalachian mountains. the researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. four mating combinations were tested for each pair of populations (a and b)—two within the same population (female a with male a and female b with male b) and two between populations (female a with male b and female b with male a). the proportion of successful matings for each mating combination was measured. for example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). the reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (aa + bb) minus the sum of the proportion of successful matings of each type between populations (ab + ba). the table provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.