Biology, 16.09.2019 05:40 keyceebhe7621
Dna is packaged in the nucleus of the cell in a structure called in which the dna coils around proteins called histones many times over. when cell replication occurs, the dna condenses even more into a a) chromatin, chromosome b) chromosome, chromatin c) nucleosome, chromosome d) chromosome, nucleosome eliminate
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Biology, 22.06.2019 06:00
Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.
Answers: 1
Biology, 22.06.2019 07:30
Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables
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Biology, 22.06.2019 09:20
Which statement explains how gravity and intertia work together
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Biology, 22.06.2019 10:40
Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.
Answers: 2
Dna is packaged in the nucleus of the cell in a structure called in which the dna coils around prot...
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