Which statement is true?(1 point)

Question

Responses

Petrified skeletal bones from an ancient mammal are not fossils.
Petrified skeletal bones from an ancient mammal are not fossils.

Recent remains of plants or animals on topsoil are fossils.
Recent remains of plants or animals on topsoil are fossils.

Imprints of leaves or footprints in sedimentary rock are fossils.
Imprints of leaves or footprints in sedimentary rock are fossils.

Insects preserved in hardened tree sap are not fossils.
Insects preserved in hardened tree sap are not fossils.

Answer 1

The true statement is:

Imprints of leaves or footprints in sedimentary rock are fossils.

Fossils can include various types of preserved evidence of past life, such as imprints, casts, and actual remains. The other statements are incorrect as petrified bones are indeed fossils, remains in topsoil are not usually classified as fossils, and insects preserved in hardened tree sap (amber) are considered fossils.

Answer 2

Which of the following pieces of evidence would best support the argument that humans are more evolutionarily related to fish than they are to insects?(1 point)
Responses

Fossils of ancient fish and human ancestors have been discovered in the same sedimentary rock layers.
Fossils of ancient fish and human ancestors have been discovered in the same sedimentary rock layers.

The earliest fish fossils are found in the lowest strata of sedimentary rocks, followed by insects, and then humans.
The earliest fish fossils are found in the lowest strata of sedimentary rocks, followed by insects, and then humans.

The early stages of embryo development in fish and humans look strikingly similar while insects develop very differently compared to both fish and humans.
The early stages of embryo development in fish and humans look strikingly similar while insects develop very differently compared to both fish and humans.

All these organisms require oxygen to survive.
All these organisms require oxygen to survive.

Answer 3

The best piece of evidence to support the argument that humans are more evolutionarily related to fish than to insects is:

The early stages of embryo development in fish and humans look strikingly similar while insects develop very differently compared to both fish and humans.

This statement highlights the similarity in embryonic development between humans and fish, indicating a closer evolutionary relationship, whereas the developmental processes of insects differ significantly. The other options, while potentially relevant, do not provide as direct evidence regarding evolutionary relationships as the similarity in embryonic development does.

Answer 4

Human embryos have tails, which become tail bones before birth. Tails also appear in fish, reptiles, amphibians, birds, and mammals. Humans also have hair and produce milk to nourish the young, which is unique to mammals. What does this indicate?(1 point)
Responses

a very distant evolutionary connection between humans and many other reptiles
a very distant evolutionary connection between humans and many other reptiles

a very distant evolutionary connection between humans and many other mammals
a very distant evolutionary connection between humans and many other mammals

a close evolutionary connection between humans and many other mammals
a close evolutionary connection between humans and many other mammals

a close evolutionary connection between humans and many other reptiles

Answer 5

The correct response is:

a close evolutionary connection between humans and many other mammals.

The presence of traits such as having hair and producing milk (which are characteristics of mammals) indicates a closer evolutionary relationship between humans and other mammals. Additionally, the development of structures like tails in embryos further supports the idea of common ancestry within the group of mammals.