Some species of cuckoos lay their eggs in the nests of other birds. when the birds hatch, the other species tends to the cuckoo’s young as their own. while the other species takes care of their young, the parent cuckoos collect food for themselves and produce more offspring. how does this tactic affect the survival of the cuckoos and the offspring of the birds that care for young cuckoos? a) it increases survival for both. b) it decreases survival for both. c) it increases survival for cuckoos, but decreases survival of the other birds. d) it decreases survival for cuckoos, but increases survival of the other birds.

What do plants release during cellur respiration? a. carbon dioxide and oxygen.b. water and sugar.c. carbon dioxide and waterd. oxygen and sugar meh!

Asnail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup.

On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.