1. All living organisms are composed of cells.
2. The cell is the basic unit of life.
3. New cells arise from pre-existing cells.
The molecules in the sugar move from an area of higher concentration (sugar cube) to an area of lower concentration in the water.
That is exactly what diffusion is: the net movement of molecules or atoms driven by a gradient , which means that it doesn’t requires energy.
The completed question is,
Identify the biotic factor of an ecosystem from the following:
a. soil composition
b. trees
c. temperature
d. sunlight
Option b. trees are the biotic factor of an ecosystem.
An ecosystem includes all the organisms and the physical environment with which they interact. These biotic and abiotic components exist linked together through nutrient cycles and energy flows. The energy penetrates the system through photosynthesis and exists incorporated into plant tissue.
The primary types of ecosystems are forests, grasslands, deserts, tundra, freshwater, and marine. The word “biome” may even be used to represent terrestrial ecosystems that extend across a large geographic area, such as the tundra.
With the provided choices. it exists trees that are categorized as biotic factors of an ecosystem. Biotic factor guides living things found in the ecosystem. Trees exist as living things that furnish oxygen for humans and animals to live.
Hence, Option b. trees are the biotic factor of an ecosystem.
To learn more about the Ecosystem refer to:
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b. It was successful.
c. It explained his theory of evolution.
d. It was based on his findings in South Africa.
It was based on his findings in South Africa; is not true Darwin’s book On the Origin of Species
The theory on " Charles Darwin's book "On the Origin of Species" stated that:
" individuals with traits that enable them to adapt to their environments will help them survive and have more offspring, which will inherit those traits"
Evolution simply means the way or process by which different kinds of living things were believed to have originated or developed from earlier forms
Learn more about Charles Darwin's theory of evolution:
Answer:
The correct answer is option D.
Explanation:
Darwin's book on the origin of species explains his theory of evolution and he was working on this book's manuscript over three years time period. The origin of species is well known and was very successful. So, all three statement are correct.
The book was based on findings on Galapagos island and South America not in south africa. This book explained natural selection on the survival of the fittest theory.
Thus, the correct answer is option D.
b contains chloroplyll
c is immobile
d both a and c
aids in digestion
produces insulin
fights intestinal infection
secretes hormones
Yes, it is a storehouse for good bacteria.