Atemperate deciduous forest is dominated by oak trees, which produce acorns. populations of deer, black bear, and squirrels all rely on the acorns as a primary source of food. a large portion of the forest is cut down, causing it to lose most of its oak trees. what is most likely to happen in the forest as a result?

a.
black bears, deer, and squirrels would undergo a mass extinction, so the forest's biodiversity would decrease.
b.
deer would become less likely to survive and reproduce, so their population would decline.
c.
squirrels would instantly adapt to the lack of acorns, so their population would remain stable.
d.
black bears would benefit from the space made available by the loss of trees, so their population would increase.

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

Rue or false siblings look simila rbecause they each have some traits of their parents.

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.