A trait cannot be subject to natural selection unless it is heritable
Indicate whether the statement is true or false
TRUE
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The protein p53 activates genes that _____
A) increase mutation rate B) lead to higher production of growth factors for the cell C) increase the rate of endocytosis D) arrest the cell cycle
The number of trophic levels an ecosystem can support is driven by (select all that apply)
A- The amount of energy available (primary productivity) B-The speed of nutrient cycling (decomposition) C- The population size of top predators in the ecosystem D-The efficiency of energy transfer across trophic levels E- The composition of the plant community
Continuous cell cultures are developed from (embryonic/haploid/neoplastic) cells
What will be an ideal response?
A ________, a ________, and a ________ are the major parts of a nucleotide, whereas a ________ and a ________ are the major parts of a nucleoside.
Fill in the blank(s) with the appropriate word(s).