Answers 2024
Which of the following characteristics describes only true terrestrial animals with
no need to return to water at any stage of the life cycle? - amniotic eggs
Which of the following represents the strongest evidence that two of the three
middle ear bones of mammals are homologous to certain bones in the lower jaw of
reptiles? - the bones can be observed to move from the developing jaw to the
developing middle ear in mammalian embryos
In general, where on Earth would you expect to find the greatest amount of
biodiversity? - tropical rainforest
While walking across campus with two of your friends, you come across a stray cat
that
becomes startled. The cat arches her back, her hair stands on end, and she hisses.
You ask your
two friends why the cat behaved in that way. One of your friends says that you
triggered a neural
reflex in the cat, which culminated in the contraction of certain muscles. Your other
friend
responded that the behavior makes the cat look bigger, which might frighten
predators. Which of
the following statements best describes these explanations? - - the first explanation
refers to
proximate causation, whereas the second refers to ultimate causation
, Irish elk (now extinct) had extremely large antlers. Paleontological studies have
shown that
the antlers grew at a faster rate than other regions of the body.This type of growth
is known as: - allometric
The small portion of the embryo that will become its dorsal side develops from
the:? - gray crescant
Which of the following groups of vertebrates would be most affected by a short
and sharp
decrease in temperature? - squamates
When skeletal muscle contracts, the actin and myosin filament? - slide past one
another
. Which of the following was NOT likely a major problem that the first tetrapods
encountered in
moving from water to land? - - - larger vertebrate predators that were already
adapted to a terrestrial lifestyle
According to your textbook (Campbell Biology, 9th Edition, by Reece et al.), the
oldest fossil remains of Homo sapiens date from about: - 160,000-195,000 years
ago
In humans, the notochord is replaced by: - intervertebral discs
. You have discovered a new species of chordate! Your new species has the
following