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Fossils and genes are used to determine(1 point)

how many mutations occurred in a species over time.

how species will change over time.

differences between organisms.

how species interact with each other.

2. A common ancestor is an organism that is the(1 point)

direct ancestor of two or more different organisms.

indirect ancestor of two or more different organisms.

indirect ancestor of one organism.

direct ancestor of one organism.

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?(1 point)

The fossils came from the same organism.

The fossils are from an organism that is a descendant of organism X.

The fossils are from an organism that is an ancestor of organism X.

The fossils are from organisms that lived in the same location.

4. Which group includes only bipedal animals?(1 point)

primates

lesser apes

hominins

hominids

5. What does the fossil record tell us about the evolution of the hominin skull?(1 point)

The part of the skull surrounding the brain grew larger as hominins evolved.

The face stuck out farther from the rest of the skull as hominins evolved.

The part of the skull surrounding the brain grew more pointed as hominins evolved.

The face grew wider as hominins evolved.

6. Compared to rodents, rabbits have an extra pair of incisors and other skeletal structures that are different. What can scientists conclude from this observation?(1 point)

Rabbit teeth are better than rodent teeth.

Rodents and rabbits evolved from different mammal ancestors and lack a common ancestor.

All rodents have a more recent common ancestor than any rodent and rabbits.

Rabbits evolved from a species of rodent.

7. Humans, mice, and giraffes have seven vertebrae in their necks. What can scientists conclude from this observation?

(1 point)

All vertebrates have seven vertebrae in their necks.

Each animal independently evolved this trait.

These animals descended from a common ancestor.

Humans, mice, and giraffes have the same number of bones.

8. Archaeopteryx is considered to be a transitional form between dinosaurs and birds. Which of the following is a trait that is unique to both Archaeopteryx and modern birds? (1 point)

wings

feathers

teeth

claws

9. Which pattern emerged in horse evolution as scientists studied early horse fossils and modern horse bones?(1 point)

Early and intermediate horses had four foot bones (three small and one large), and modern horses have three foot bones (two small and one large).

The earliest horses had four foot bones (three small and one large), intermediate forms had three foot bones (two small and one large), and modern horses have a single large foot bone.

Early and intermediate horses had three foot bones (two small and one large), and modern horses have four foot bones (three small and one large).

The earliest horses had a single large foot bone, intermediate forms had three foot bones (two small and one large), and modern horses have four foot bones (three small and one large).

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.(1 point)

gill slits that turn into gills

scales as a form of skin

hatch from and lay eggs

spines and tails

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?(1 point)

birds and humans

amphibians and fish

amphibians and reptiles

birds and reptiles

12. Which evidence supports the theory that fish and mammals evolved from the same ancestor? (1 point)

They both produce egg and sperm cells that must join in fertilization.

Their embryos share features in the late stages of development.

Their embryos share features in the early stages of development.

They both emerge from fertilized eggs.

13. Which pattern is evidence that reptiles and amphibians share the same ancestor? (1 point)

They have backbones.

They have eyes.

They have legs.

They have similar skin.

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  1. Fossils and genes are used to determine(1 point)

    how many mutations occurred in a species over time.

    ----> how species will change over time.

    differences between organisms.

    how species interact with each other.

    2. A common ancestor is an organism that is the(1 point)

    ------> direct ancestor of two or more different organisms.

    indirect ancestor of two or more different organisms.

    indirect ancestor of one organism.

    direct ancestor of one organism.

    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?(1 point)

    The fossils came from the same organism.

    The fossils are from an organism that is a descendant of organism X.

    -------> The fossils are from an organism that is an ancestor of organism X.

    The fossils are from organisms that lived in the same location.

    4. Which group includes only bipedal animals?(1 point)

    primates

    lesser apes

    ---------------> hominins

    hominids

    5. What does the fossil record tell us about the evolution of the hominin skull?(1 point)

    -----> The part of the skull surrounding the brain grew larger as hominins evolved.

    The face stuck out farther from the rest of the skull as hominins evolved.

    The part of the skull surrounding the brain grew more pointed as hominins evolved.

    The face grew wider as hominins evolved.

    6. Compared to rodents, rabbits have an extra pair of incisors and other skeletal structures that are different. What can scientists conclude from this observation?(1 point)

    Rabbit teeth are better than rodent teeth.

    Rodents and rabbits evolved from different mammal ancestors and lack a common ancestor.

    -----> All rodents have a more recent common ancestor than any rodent and rabbits.

    Rabbits evolved from a species of rodent.

    7. Humans, mice, and giraffes have seven vertebrae in their necks. What can scientists conclude from this observation?

    (1 point)

    All vertebrates have seven vertebrae in their necks.

    Each animal independently evolved this trait.

    -----> These animals descended from a common ancestor.

    Humans, mice, and giraffes have the same number of bones.

    8. Archaeopteryx is considered to be a transitional form between dinosaurs and birds. Which of the following is a trait that is unique to both Archaeopteryx and modern birds? (1 point)

    -------------> wings

    feathers

    teeth

    claws

    9. Which pattern emerged in horse evolution as scientists studied early horse fossils and modern horse bones?(1 point)

    Early and intermediate horses had four foot bones (three small and one large), and modern horses have three foot bones (two small and one large).

    The earliest horses had four foot bones (three small and one large), intermediate forms had three foot bones (two small and one large), and modern horses have a single large foot bone.

    Early and intermediate horses had three foot bones (two small and one large), and modern horses have four foot bones (three small and one large).

    The earliest horses had a single large foot bone, intermediate forms had three foot bones (two small and one large), and modern horses have four foot bones (three small and one large).
    ------------> NO IDEA

    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.(1 point)

    gill slits that turn into gills

    scales as a form of skin

    hatch from and lay eggs

    spines and tails

    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?(1 point)

    birds and humans

    amphibians and fish

    amphibians and reptiles

    birds and reptiles

    12. Which evidence supports the theory that fish and mammals evolved from the same ancestor? (1 point)

    They both produce egg and sperm cells that must join in fertilization.

    Their embryos share features in the late stages of development.

    Their embryos share features in the early stages of development.

    They both emerge from fertilized eggs.

    13. Which pattern is evidence that reptiles and amphibians share the same ancestor? (1 point)

    They have backbones.

    They have eyes.

    They have legs.

    They have similar skin.
    Student
    1 hour ago
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  2. My #6 is different, as the answers are not the same, here it is

    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?(1 point)

    Rodents and rabbits evolved from different mammal ancestors and lack a common ancestor.

    Rabbits evolved from a species of rodent.

    Rabbit teeth are better than rodent teeth.

    Rodents and rabbits share a common ancestor.

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  3. the questions are different for different states

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  4. Anonymous You didn't put the last 4 questions in and I got a 8/17 that is less than 50%.

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