What carbohydrate storage molecule do animals and protozoa synthesize?

A. Starch
B. Glycogen
C. Cellulose
D. Peptidoglycan


B. Glycogen

Biology & Microbiology

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The rate of aggressive interactions among individuals increases as population density increases

Indicate whether the statement is true or false

Biology & Microbiology

A particular virus consists of only DNA and proteins. Viruses attach to the surface of a host cell and inject the viral DNA into the host. The host cell then copies the viral DNA and makes new viruses

Eventually, the host cell is killed, and the new viruses are released. These new viruses search for new hosts to continue the cycle. Identify and apply at least three characteristics of life to justify whether a virus is a living thing.

Biology & Microbiology

In _____________ speciation, a new species emerges from within the geographic range of its common ancestor.

A. Sympatric B. Parapatric C. Allopatric

Biology & Microbiology

Which of the following is/are true of Hox genes?

A. they control the locations of specific parts of the body plan of plants and animals, such as the locations of eyes, limbs, or leaves B. they are evolutionarily conserved in all animals except sponges C. they activate expression of genes which control development of body segments D. they are chemical signals present in the unfertilized egg E. changes in Hox genes has contributed to rapid diversification of animal lineages

Biology & Microbiology