Question Two: Genetic variation. As healthy as someone might be, genetic variation is required to balance the differences out. This is to prevent possible diseases that aren’t present but may be if it becomes dominant.
Question Three: Variation is a good thing for species because it allows multiple possibilities for an organism, allowing a higher chance of survival. The higher the diversity, the more likely it is for people to not die from the same genetic diseases. Similarly, in a classroom, diversity can allow people to have different ideas, opinions, and answers. This lets other learn from one another within the environment rather than just wasting time listening to something that one knows already.
Answer:
C. If spiders evolved first, six legs is the derived trait.
Explanation:
A derived trait is a characteristic that is <u>present in a species but was absent in the common ancestor of this species.</u>
Spiders evolved from a crab-like ancestor and, although crabs are decapods, they possess eight walking legs and two claws. As insects evolved after spiders, the 'new' or derived trait that was absent in the ancestor would be having <u>six legs</u>.
Therefore, in this scenario, Mr. Morales states that <u>spiders evolved before insects</u>, which indicates that <u>the trait of six legs is a derived trait</u> from the last common ancestor, a characteristic that separates arachnids from insects.
a neap tide is just after the first or third quarters of the moon when there is the least difference between high and low water.
Answer:
I believe it is formed by secretions from the oocyte and the follicle granulosa cells. The human oocytes consists of four types of zona pellucida glycoproteins ZP1, ZP2, ZP3, and ZP4 which have different roles in fertilization.
I believe it would be 5g, because after 5 years, that 20 grams would be down to 10 (reduced by half). With the remaining 10 grams, you would take half of that 10 to find how much remains after another half life goes by. I hope this helps you!