The punnet square would look like this
b. t
B Bb. tB
T Tb. Tt
a chestnut trotter would have a Tb or 25%
Answer:
The theory of natural selection was proposed by Charles Darwin, which states the mechanism of biological evolution by explaining <u>adaptation and speciation.</u> There was five observation of the theory of natural selection.
1) The population produces more offspring than there are adults, in each generation.
2) The population does not continue to grow in size.
3) Food and many other resources are limited.
These three observations interfere that individuals compete for resources within a population.
4) Individuals within all populations vary.
5) Many variations are heritable.
He also assumed from these two observations that individuals inherit some characteristics that give a better chance of surviving and reproducing.
These observations and interpretations helped him to propose the theory of natural selection. The theory tells the <u>heritable characteristics in a population change over time</u> <u>become more adapted in generation after generations.</u>
2) The concentration of O2 will increase inside the cell.
The cell will want to reach equilibrium, meaning that there should be an equal number of oxygen inside and outside the cell. In the picture, more oxygen is shown outside the cell than inside so oxygen will flow into the cell until it has reached equilibrium. Therefore, the concentration of O2 will increase in the cell.
Hope this helps!!
Answer:
option B
Explanation:
The correct answer is option B.
The bond formed by donating electron is called Ionic bond.Ex LiF,NaCl
Bond formed by mutual sharing of electron between two atoms is know as Covalent bond. Ex CO, IBr
hydrogen bond is the bond formed between the hydrogen and highly electro negative compound. Ex: H₂O, NH₃
Polar bond is a covalent bond which is between two atoms where the electrons are unequally distributed.
