Aphids White-spotted bamboo shark Coral Spotted hyena Depending on the environme

Question

Aphids White-spotted bamboo shark Coral Spotted hyena Depending on the environmental conditions, aphids reproduce in different ways. In particular, in spring when food is plentiful, aphid females produce offspring ovoviviparously. These offspring develop from numerous small diploid eggs produced by mitosis. However, during the short days of fall, aphid females produce eggs by meiosis. These eggs are larger and contain more nutrient-storing yolk, because they are laid after fertilization Return to instructions Aphids White-spotted bamboo shark Coral Spotted hyena Recent observations in captive sharks have led to the acceptance that these ancient-jawed fishes are, indeed, capable of virgin births. For example, in 1996, a captive white-spotted bamboo shark at the Belle Isle Aquarium in Detroit deposited seven eggs despite having reached sexual maturity in the absence of males. All of her offspring were female, though only two survived to maturity. Genetic analysis confirmed that each of the offspring developed from an unfertilized haploid egg that had undergone a doubling of its chromosomes Return to instructions Aphids White-spotted bamboo shark Coral Spotted hyena Coral refers to small marine cnidarians. Coral reefs are composed of species of coral and the hard calcium carbonate exoskeletons that they secrete. Each polyp of coral is a single multicellular organism with tentacles and a single opening to the gastrovascular cavity. Storms or other turbulent activity can break polyps apart, scattering the cells. For certain coral species, such physical separation is the predominant mode of reproduction Return to instructions Aphids White-spotted bamboo shark Coral Spotted hyena Female spotted hyenas are pseudohermaphrodites. They are typically more muscular and more aggressive than their male counterparts. In addition, they have an enlarged clitoris that resembles a penis in size and shape (and becomes erect as a show of submission). Despite their masculine appearance, female spotted hyenas have a typical mammalian female reproductive system and conceive upon mating with a male Return to instructions

Explanation / Answer

Reproductive Mechanism

Demonstrates reproduction by fragmentation: CORAL

Demonstrates (mitotic) Parthenogenesis: APHIDS

Capable of asexual reproduction: WHITE-SPOTTED BAMBOO SHARK

Offspring Characteristics

Offspring are genetically identical to parent: WHITE-SPOTTED BAMBOO SHARK

Offspring receive genetic material from only one parent:  SPRINGTIME APHIDS

Siblings are always genetically identical to each other:  CORAL POLYPS

It is selectively advantageous for many animals to be capable of both sexual and asexual modes of reproduction. The reason is that SEXUAL reproduction adds genetic variety to the population. However, ASEXUAL reproduction is preferable when genetic variety is not necessary (for example, when the parent genotype is very successful as is).

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.