Fossils and genes are used to determine?
how many mutations occurred in a species over time.
how species interact with each other.
how species will change over time.
differences between organisms.
Do not trust anime girl!!!! I got a 7/17
Here’s the answers
1) differences between organisms
2) direct ancestor of two or more different organisms
3) the fossils are from an organism that is an ancestor of organism x
4) hominins
5) the part of the skull grew larger as hominins evolved
6) all rodents have a more common ancestor than any rodent and rabbits
7) these animals descended from a common ancestor
8) feathers
9) the earliest horses had four foot foot bones...
10) Gill slits that turn into gills
11) amphibians and fish
12) their embryos share features in the early stages of development
13) they have backbones
14) you can’t plagiarize so sorry guys!
14. Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today. Paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms.
should i trust these guys? my grades good but if these are wrong imma say goodbye to my C!
i am you is 100% right! good luck guys :]
Just letting you guys know that if you use 2certified's answer you'll get it wrong...its copied from a website (btw you'll get a 76% if you only miss #14)
1)Fossils and genes are used to determine
ANSWER: differences between organisms
2)A common ancestor is an organism that is the
ANSWER: direct ancestor of two or more different organisms.
3)A scientist discovers a fossil of a new organism and places it in the fossil record. The fossil shows the organism had similar structures to organism X, which appears later in the fossil record. Which conclusion about the organisms is most reasonable?
ANSWER: The fossils are from an organism that is an ancestor of organism X.
4)Which group includes only bipedal animals?
ANSWER: hominins
5) What does the fossil record tell us about the evolution of the hominin skull?
ANSWER: the part of the skull surrounding the brain grew larger
6)Compared to rodents, rabbits have an extra pair of incisors and other skeletal structures that are different. They also have some features that are similar. What can scientists conclude from this observation?
ANSWER: Rodents and rabbits share a common ancestor.
7)Humans, mice, and giraffes have seven vertebrae in their necks. What can scientists conclude from this observation?
ANSWER: These animals descended from a common ancestor.
8) Which of the following is a trait that is unique to both Archaeopteryx and modern birds?
ANSWER: feathers
9)Which pattern emerged in horse evolution as scientists studied early horse fossils and modern horse bones?
ANSWER: earliest horses had 4 foot bones, the modern horse have a single large foot bone
10)Listed below are characteristics that serve as evidence of shared ancestry between fish and reptiles. Select the option that applies only to embryos rather than adults.
ANSWER: gill slits that turn into gills
11) Fish, amphibians, reptiles, birds, and mammals have similar embryos.
They all start with gill slits. Fish and some amphibians grow to have gills. Some amphibians, reptiles, birds, and mammals develop lungs to breathe air.
They all start with tails. Fish, some amphibians, reptiles, and birds grow tails. Humans do not keep their tails.
Fish and reptiles develop scales. Amphibians, birds, and humans have skin. Birds have feathers, and humans have hair.
Which two animals exhibit the most linear relationship?
ANSWER: amphibians and fish
12)Which evidence supports the theory that fish and mammals evolved from the same ancestor?
ANSWER: their embryos share features in the early stages of development
13)Which pair of embryos are most alike in later stages of development?
ANSWER: fish and amphibian
2023