Soil
Soil is the upper layer of the ground comprising of a mixture of sand, silt, clay, loose rock fragments, and organic matter that can support the growth of rooted plants. The relative proportions of sand, silt and clay determine the texture and size of the pores of the soil, which affects its ability to allow air and water to penetrate/infiltrate.
Abiotic
Abiotic
Abiotic
Biotic
Biotic
Biotic
When two protein chains combine to form an active protein, the structural level is quaternary.
<h3>What is a quaternary structure?</h3>
The quaternary and tertiary structure of a protein is the tridimensional shape of the protein, which involves protein domains.
The quaternary protein structure refers to the different arrangements generated by different protein subunits.
The primary structure of a protein involves its amino acid sequence, whereas the second structure involves protein chains.
Learn more about quaternary structure here:
brainly.com/question/5286438
Answer: Diploblastic animals have radial symmetry.
Phylum porifera lack body symmetry and are therefore call asymmetrical this is because their bodies lack true tissues, true organs and there body is well adapted for water and water flows through their body and deposit nutrients needed for growth and development.
Explanation:
Diploblastic organisms meaning organisms that have two germ layers(ectoderm and endoderm) have radial symmetry because their symmetry is located along a central axis examples are the sea anemone and jelly fishes belonging to phylum cnidarians.
Phylum porifera e.g sponges are assymetrical that is they have no body plans and this is because the shapes of their bodies is adapted to water and water flow allow nutrients to enter their body for growth.
Trees are green, Trees are autotrophic (they make their own food), Trees release oxygen into the air.
