Answer:
A human heart is roughly the size of a large fist.
Explanation:
but the size varies according to an individual's age, health and size. The heart weighs 7 to 15 ounces.
In artificial selection, nature provided the variation, and human selected those variations that they found useful
Explanation:
This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond. An atom that loses one or more valence electrons to become a positively charged ion is known as a cation, while an atom that gains electrons and becomes negatively charged is known as an anion.
Answer:
cytokinesis
Explanation:
The most important and observable difference in the plant animal cells mitosis is the cytokinesis.
Answer:
Explanation:
It is the lactic acid which makes milk taste sour. Pasteurising milk kills off harmful bacteria and greatly reduces the number of lactobacillus ensuring that milk will last up to three weeks in a fridge. Lactobacillus is a very useful bacterium as the acidic conditions it creates makes a milk protein called casein turn to curd.
