Answer:
See explanation
Explanation:
Fossil records contain an extensive detail of the evolution of various species on earth which have been preserved in the remains of these organisms or imprints that organisms that existed long ago must have left in sedimentary rocks.
Fossil records basically tell us about the past. They tell us about the species that once existed on earth. They also tell us how long these species existed and how the were related to other species.
This information help us to work out how these organisms lived and the environment where they lived.
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Answer:
The vacuoles is like the cabinets in the school used to store items. ... The Chloroplast is like the cafeteria in a school because it is where the students in a school get their energy. Large central vacuole. The Large Central Vacuole is like a swimming pool because it stores water for the swim team.
Explanation:
Answer:
Dwarf plants should be 20
Tall plants should be 60
Explanation:
This question involves a single gene coding for height in pea plants. The tall allele (T) is dominant over the allele (t). This means that T will always mask the expression of t in a heterozygous state.
Heterozygous state implies a plant that contains both dominant and recessive alleles i.e. Tt. Using a punnet square, two heterozygous pea plants (Tt × Tt) will produce four possible offsprings with genotypes: TT, Tt, Tt and tt.
TT, Tt, Tt are all phenotypically tall while the are phenotypically dwarf. Hence, a 3 Tall : 1 dwarf ratio was obtained. The phenotypic ratio can be used to determine the amount expected in offsprings.
Out of 80 offsprings, 1/4 × 80 will be dwarf i.e. 20
Out of same 80 offsprings, 3/4 × 80 = 60 will be produced.
Only 10% of the energy from prey is passed on to the higher trophic levels of the food chain.