The three groups of amphibians: Salamanders, Frogs, and Caecilians are different because they look different as adults. Salamanders have tails and they have four weak short limbs that allow them to walk instead of jump. Frogs have fours legs with strong hind legs and no tails. Caecilians have no legs and they are burrowing animals.
Answer:
50 percent
Explanation:
The efficiency of ramp can be found by using this formula
(Output work/input work)*100.
Amounts of work to lift up = 600j
Amount of work bro take up to same height = 1200j
Efficiency of ramp = (600j/1200j) * 100
= 0.5 x100
= 50 percent
Therefore from the calculations above, the efficiency of this ramp is 50 percent
The phosphate enters the ecosystem and becomes tied up in the biogeochemical system where it is recycled. The rapid growth of aquatic vegetation or increases in the algal population can cause the death and decay of vegetation and aquatic life because of the decrease in the dissolved oxygen levels
Answer:
A Virus is a infectious agent that only multiply in the living cells of organisms
Bacteria (Can depend on which kind) is a member of a large group made up of unicellular microorganisms. They contain cell walls but do not contain a nucleus or organelles.
Some bacteria can cause diseases like viruses.
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