1. why is it rare for the soft parts of an organism to become a fossil
a. the soft parts take a long time to decay.
b. the soft parts can be eaten by other animas.
c. The soft parts cannot be buried in sediment.>>>my answer
d. the soft parts from petrified fossils.
2.Which of the following terms refers to a solid of the shape of an organism?
a. mold
b. cast
c. carbon film
d. trace fossil
Disagree with first answer but not sure about second but guess at cast.
the first one is not D its B and the second one is B
1. The correct answer is b. the soft parts can be eaten by other animals. Soft parts of an organism, such as flesh and organs, are more likely to be consumed or decomposed by scavengers and other organisms after death. This makes it rare for soft parts to be preserved and become fossilized.
2. The correct answer is a. mold. A mold is a type of fossil that forms when the organism's remains decay and leave behind an empty cavity in the shape of the organism. This cavity can later be filled with minerals to create a solid replica of the organism's shape. Casts, on the other hand, are formed when minerals fill the mold and create a copy of the organism's shape, but they are considered a separate term from the original shape of the organism. Carbon films and trace fossils refer to different types of fossil preservation and do not necessarily represent the solid shape of an organism.
1. The correct answer is b. the soft parts can be eaten by other animals.
Explanation: It is rare for the soft parts of an organism to become a fossil because they are susceptible to decay and can be easily consumed by scavengers and other animals. Soft tissues such as muscles, organs, and skin are composed of organic matter that tends to decompose quickly after an organism dies. Even in the rare cases when soft tissues are preserved, they are often fragmented and distorted over time. In contrast, harder parts like bones and teeth have a much higher chance of becoming fossilized because they are more resistant to decay and are less likely to be consumed by other organisms.
2. The correct answer is b. cast.
Explanation: In the context of fossils, a cast refers to a solid replica or copy of the shape of an organism or its body part. Casts are formed when the remains of an organism, such as a shell or bone, are buried in sediment. Over time, minerals seep into the surrounding sediment and fill the spaces left by the original organism, gradually hardening and forming a solid replica. This replica, or cast, preserves the shape and outer surface features of the original organism. It provides valuable information about the anatomy and structure of the organism, even if the original material has decomposed or been removed. Other options, such as mold (an impression of the organism's shape), carbon film (a thin layer of carbon left behind after decay), and trace fossil (evidence of an organism's activity, like footprints or burrows), do not refer to the solid shape of an organism itself.