Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.
Answer:
True
Explanation:
Organic catalyst that increase the rate of biochemical reactions in the cells of living organism s are called enzymes.The are proteins with active sites which are specific to a particular substrate, for enzyme-substrate complex and later enzyme product complex to formed.
They act by lowering the activation energy in the organic chemical reaction therefore increase the rate at which chemical reactions progress.
Hence when the reactions are too slow,activation energy are high,because enzymes are not available to catalyze the reaction fixing the active sites with the the substrates.
<span> During the breakdown of ATP, ADP moving back to ATP synthase will most likely not happen.</span>
Answer:
The statements in options A,B,C,D and E are correct:
A. Deuterstomia, Protostomia and Ecdysozoa are clades of bilaterians.
B. Invertebrates do not posses a back bone.
C. Lophotrochozoans posses a flexible exoskeleton for protection from harmful environments.
D. Studies show that sponges do not consist in a group with a common ancestry hence all animals except sponges share a common ancestor.
E. Lophotrochozoans posses three germ layer: the endoderm mesoderm and ectoderm, are bilaterally symmetrical and are invertebrates.
