Answer:
Chemical nutrients and energy tend to flow in the same direction for most of an ecosystem. The big difference is that the chemical nutrients are ultimately recycled in the ecosystem while the energy is ultimately lost from the ecosystem to the universe at large. Energy in any ecosystem ultimately comes from the Sun.
Explanation:
Trophic levels is known as feeding levels in an ecosystem.
Trophic levels is any of the stages involved in the food chain. In an ecosystem, the trophic levels begins with the producer which provides foods from inorganic sources.
- Consumers at all levels feeds on the food produced by the producers. Some consumers feeds on other consumers.
They will shrink , that is your answer.
The study pushes back the clock on the origin of Earth's water by hundreds of millions of years, to around 4.6 billion years ago, when all the worlds of the inner solar system were still forming. Scientists had suspected that our planet formed dry, with high-energy impacts creating a molten surface on the infant Earth.
Answer: 4.6 billion years.
The genotype of the parents is Ff and Ff.
Explanation:
Data given:
freckles = dominant, FF or Ff genotype
no freckles = recessive, ff
genotype of parents with freckles = ?
child has no freckles = ?
The possibility of the child having no freckles is because the parent could be heterozygous dominant for the trait i.e freckles.
The genotype is Ff X Ff
F f
F FF Ff
f Ff ff
It can be seen from the Punnet square that there are 25% chance of the child to be with no freckles when both parents are having freckles.
The genotype ratio is 1:2:1
The phenotype ratio is 3:1
3 with freckles and 1 with no freckles.
