The cells that carry electric signals from one part of the body to another in the nervous system are ________
A) dendrites
B) neurons
C) effectors
D) synapses
B
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This stage of mitosis is characterized by the disassembly of spindle apparatus, the reestablishment of the nuclear membrane, and the decondensation of the chromosomes:
A. Prometaphase B. Telophase C. Anaphase D. Metaphase
Which statement about a monohybrid test cross is not true?
a. It tests whether an individual of unknown genotype is homozygous or heterozygous. b. The test individual is crossed with a homozygous recessive individual. c. If the test individual is heterozygous, the progeny will have a 1:1 phenotypic ratio. d. If the test individual is homozygous, the progeny will have a 3:1 phenotypic ratio. e. Test cross results are consistent with Mendel's model of inheritance
In controlled experiments:
a. all variables are independent of each other. b. all critical variables are manipulated. c. all variables are dependent on each other. d. one variable is manipulated while others are held constant. e. all variables are held constant.
In the 1800s, northern Minnesota was covered with heavy forests. After the forests were logged off, the land was sold for farms. The majority of the farms failed because the land became waterlogged. Why did this happen?
What will be an ideal response?