Answer:
Each of her parents must have one recessive gene for blond hair color
Explanation:
- Blond is a recessive trait
- Since Silvia is blond this means she has both copies of the recessive gene for hair color
- Therefore, both her parents have a recessive gene for blond hair and passed it down to her.
- The parents don't have blond hair because their dominant gene for browns masks the recessive gene for blond.
In animal cells centrioles are located in, and form part of, the centrosome where they are paired structures lying at right angles to one another. In this context they are possibly involved in spindle assembly during mitosis. The centrosome is positioned in the cytoplasm outside the nucleus but often near to it.
Answer:
thermosphere(80 - 480 km from Earth's surface)
Explanation:
characteristics
- cloudless and free of water vapour
- the phenomenon of aurora is seen in this layer
- the bottom part of the thermosphere is known as the ionosphere
- the ionosphere has very high temperatures due to the presence of charged particles or ions. The ions function as a reflector of electromagnetic waves in long distance telecommunications.
a. They attract birds and insects to assist in pollination
Without pollination, a plant species cannot spread to new places as quickly
hope this helps
Answer: Matthias Schleiden and Theodor Schwann
Explanation:
