With 2 questions will mark as

1.) over time, organisms change. sometimes they change so much that descendants may be completely different from their ancestors. what must happen for this process to occur?

mutations in egg and/or sperm

organisms die before they have a chance to reproduce

traits acquired during an organism's lifetime are passed on to offspring

no chance for mutations in sex cells

2.) in order to support his theory of evolutionary change, charles darwin concentrated his studies on the many species of finches in the galapagos islands. darwin noted that many of the birds had different shapes and styles of beak.

what is the possible explanation for what darwin observed?

the birds had different beaks because the females preferred certain beak shapes over others.

people had bred the birds to have beaks with varied shapes and sizes.

the birds had beaks that were adapted for feeding differently.

some birds had been injured by predators and were poor competitors.

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

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.

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis