1108 Module 2 Review

Front

Female bees produce unfertilized eggs that develop into new worker bees. What asexual reproduction strategy is this?

Back

Parthenogenesis

Answer explanation

Parthenogenesis: embryo develops without any sperm involved (ex: whiptail lizards)

Fragmentation: part of body falls off and it can develop into a whole new individual (ex: sea stars)

Budding: buds that come out of one eventually fall off and develop into individuals

Polyembryony: one fertilized egg develops into multiple embryos that are genetically identical (ex: twins)

Front

Under what condition would a new animal species that can reproduce both sexually and asexually most likely reproduce sexually?

Back

Having a decreased concentration of food in the tank per animal

Answer explanation

Sexual reproduction is more likely to occur when conditions of survival are unfavorable.

• - genetic diversity --> more chance of survival

Front

Which of the following are FALSE regarding the three life cycles? 1. In the haplontic life cycle, the mature multicellular organism is haploid 2. In the diplontic life cycle, the mature multicellular organism is diploid 3. The mature multicellular haploid stage in alternation of generations is
the gametophyte 4. The mature multicellular haploid stage in alternation of generations is
the sporophyte

Back

The mature multicellular haploid stage in alternation of generations is
the sporophyte

Answer explanation

Front

Order the cell development processes right after fertilization: Meiosis, Cell differentiation, Induction, Mitosis.

Back

Mitosis -> Induction -> Cell differentiation

Answer explanation

make more cells --> tell them what to be --> differentiate

Meiosis occurs before fertilization.

Front

Which of the following is NOT a reason as to why sexual selection is performed mostly by females?

• Eggs are more limited than sperm
• Females tend to invest more than males into their offspring
• Females look for resources that the male can provide to make raising offspring easier
• Females maximize their reproductive success by mating with as many males as possible

Back

Females maximize their reproductive success by mating with as many males as possible

Answer explanation

Females get to be "choosy" because are eggs are expensive!

Front

What is indicative of first male advantage?

Back

Copulatory plugs

Answer explanation

Other first male advantages: Mate guarding, copulatory plugs

Front

Which of the following is not an example of intersexual selection or female choice (lekking)?

• Female rams choosing to mate with male rams with larger horns
• Female kangaroos mating with the stronger male kangaroo that beat others to mate
• Female peacocks choosing male peacocks with more colorful plumage
• Female birds mating with larger, more colorful male birds

Back

Female kangaroos mating with the stronger male kangaroo that beat others to mate

Answer explanation

Lek: males congregate for display and
females choose

Front

Which behavior is an example of parental investment in vogels?

• A female vogel killing nearby nestlings to protect her own
• A female vogel mating with many males to preserve her genes
• A male vogel guarding his offspring while his partner hunts
• A male vogel mating with many females to increase fitness

Back

A male vogel guarding his offspring while his partner goes to
hunt in a nearby stream

Answer explanation

Parental investment: anything done by a parent to increase the chance of survival of their offspring

Front

Where does spermatogenesis occur?

Back

seminiferous tubules

Answer explanation

S : seminiferous tubules

E : epididymis

V : vas deferens

E : ejaculatory duct

N: ---

U : urethra

P : penis

Front

Each oogonium produces ___ eggs(s) and each spermatogonium produces ___ sperm.

Back

1, 4

Answer explanation

Only 1 egg is produced due to unequal
cytokinesis at the end of meiosis.