Male Bowerbirds are black hedium-sized birds that live in New Guinean rainforests. Once a year they create elaborate nest-like structures to attract a female. Male Bowerbirds use sticks and leaves to build their structures and decorate them using brightly colored objects, including beetles. To attract a
mate, male Bowerbirds depend on -
A predators to kill off competition.
B other organisms for building materials.
с seasonal variation in sunlight.
D the temperature range of their location.

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material

Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. an incomplete dominance cross is performed between a bird that is homozygous for red feathers and a bird that is homozygous for blue feathers. purple offspring result. then, two of the purple offspring are crossed. according to the punnett square for this cross, how many of the offspring from the second cross will have a feather color that results from incomplete dominance? 1 in 4 2 in 4 3 in 4 4 in 4