Which example is an organism?

a.
bacteria

b.
heart

c.
clay

d.
soil
how does a rabbit reproduce?

a.
through spores

b.
through sexual reproduction

c.
through budding

d.
through asexual reproduction
how does a rabbit reproduce?

a.
through spores

b.
through sexual reproduction

c.
through budding

d.
through asexual reproduction
a venus flytrap closes around a small insect.

which life characteristic does this illustrate?

a.
response to stimuli

b.
permeability

c.
reproduction

d.
growth
which animal could a polar bear mate with to produce offspring?

a.
grizzly bear

b.
puma

c.
moose

d.
seal
the taxonomic reference for humans is eukarya, animalia, chordata, mammalia, primates, hominid, homo, sapiens.

humans belong to which order?

a.
animalia

b.
hominid

c.
primates

d.
chordata

Rease is an enzyme used by plants to break down urea (a nitrogen-containing compound) into carbon dioxide and ammonia. urease urea > > > carbon dioxide and ammonia ammonia is broken down by plants into a nitrogen source plants need to grow. thus, plants could not use urea as a nitrogen source unless it was first converted to ammonia. in soybean plants there are two different kinds of urease, one produced in the seeds and the other produced in the leaves of the plant. three types of soybean plants were used in a set of experiments: normal soybeans and two mutant strains, one lacking the urease in the seeds only (strain 1) and one lacking urease in the leaves only (strain 2). experiment 1 separate areas in a field were planted with normal, strain 1, and strain 2 soybeans. all types of soybeans appeared to grow, flower, and produce seeds equally well. there were no externally detectable differences among the strains. experiment 2 small pieces of plant leaves of equal weight were obtained from each type of soybean plant and separately placed on media in culture dishes. tissue growing in this way will become an unorganized clump of cells referred to as callus. to provide a controlled nitrogen source, half the tissue samples of each type were placed on media containing urea, and the other half of the samples were placed on media containing ammonia. after 30 days, the weight gain for each of the callus samples was determined. results are shown in the table below.

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

Has anyone taken the genetics unit test in connexus? not looking for answers, just a little bit what to expect and some with studying.