Answer:
Scientists use the fossils around the new fossil to find its relative age.
Explanation:
A and B are correct. The circulatory system is all of that.
Una sustancia pura es cuerpo homogéneo constituido de un mismo componente que puede ser elemento o compuesto.
- Una sustancia pura posee siempre la misma composición y características fisico-químicas, aún variando las condiciones del medio donde esta sustancia se encuentra.
- Unas sustancia pura no puede ser separada por métodos de separación tales como, por ejemplo, evaporación o destilación.
- De este modo, una sustancia pura posee propiedades definidas y la misma composición entre diferentes muestras.
- Por ejemplo, el agua (H2O) es una sustancia pura, la cual siempre está formada por dos átomos de Hidrógeno y un átomo de Oxígeno.
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Answer:
3/4
Explanation:
In humans, a widow's peak hairline is dominant while a straight hairline is recessive.
Tom and Sue both have a widow's peak but their son Joe has a straight hairline.
For Joe to have a straight haircut which is inherited in the recessive condition, that means both parent each has a recessive allele copy for this trailer making them heterozygotes for the trait.
If the widow's peak allele is W (genotype for heterozygote would be Ww)
A cross between these two heterozygotes gives
Ww x Ww
WW Ww Ww ww
3/4 widow's peak 1/4 straight hair line
The genetic probability of that child having a widow's peak hairline is 3/4...
Answer:
The nucleus is called the "control center", since it runs the cell and sends and receives signals to the brain.
A gene is part of your DNA. It codes for proteins which make you who you are!
Explanation:
