Question

1. which of the following is not one of the way fitness cost of sexual reproduction?

a)courtship and mating rituals associated with courtship are time consuming

b)recombination of alleles during meiosis can break up beneficial combinations of alleles

c)in sexual reproduction, fitness decreases by two fold

d) sexually reproducing organisms experience the effects of muller's ratchet at a disproportionately higher rate than asexually reproducing organisms

e)coming into close contact with other organisms during copulation facilities disease transmittance

2. each of the following traits evolved more than once on the phylogeny of animals excepts___

a)eye

b)segmentation

c)four-chambered heart

d)nematocysts

e)flights

3. which of the following traits is an example of exaltation of cephalopods/

a) radula

b)tentacles

c)bristles

d)jointed appendages

Answer 1

1) the correct option should be C....The cost of males (or "2-fold cost of sex"): in many species, males do not provide any resource to the next generation, yet sexual females typically invest half of their resources into the production of males. Everything else being equal, this generates a 2-fold advantage for asexual females

2 ) The Correct ans is C Segmentation ....

3) Tentacles ....cephalopods use their arms to think, act, smell and even taste. ... And these neurons are distributed to make the most of its eight arms. An octopus' central brain – located between its eyes – doesn't control its every move