It is believed that this happens because some signals that regulate development are the same between different species and because <span>they share ancient genes. </span>These ancient genes are expressed during a middle "phylotypic stage" of embryonic development for all species.
For example, human and animal embryos go through very similar stages of early development and share similar features such as tails and gill-like structures. The major difference appears to be how long it takes to reach each of these same stages.
Explanation:
Earthquake waves produces two very important waves that useful in studying the composition of the earth.
These waves are P and S-waves.
- P-waves are primary longitudinal waves that propagates through any material medium.
- S-waves are secondary transverse waves that can only pass through solids but not fluids.
Using these waves we can know the composition of the earth.
Answer:
B. Dendrite - cell body - axon - terminal branches
is correct
I think that an antonym for Food Chain is food web.
1. I think A
2. <span>A.
algae (do not have seeds)
B.
mosses(do not have seeds)
C.
shrubs (I do not know if they really mean this one, but all others do not have seeds)
D.
fungi(not plants)
3. A
4. I think B
5.I think C
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