A population is the amount of people somewhere. Usually, the number will be rounded.
Arranged in layers of rock in the ground
1.primary oocytes
<span>- diploid (2 complete sets of chromosomes) </span>
<span>- 'formed' from oogonia during the process of oogenesis </span>
<span>* primordial follicles consist of a primary oocyte + a single layer of squamous follicle cells </span>
<span>* primary follicles consist of a primary oocyte + 1/several layers of cuboidal follicle cells </span>
<span>2. secondary oocytes </span>
<span>- haploid (1 complete set of chromosomes) </span>
<span>- developed from the primary oocyte undergoing meiosis I to form a secondary oocyte + a tiny first polar body </span>
<span>* found in the matured Graafian follicle </span>
<span>* begins meiosis II & stops at metaphase II upon ovulation & only continues upon fertilisation</span>
The most reliable way to prove the change of horses over time is B: Fossil evidence. By observing the remains of the ancestors of horses they can bridge the connections between the two to prove and explain any differences due to environmental and genetic differences and maybe perhaps adaptive differences with more research.