In primary active transport, the carrier protein that transports a substance also hydrolyzes ATP to
power the transport directly.
Indicate whether the statement is true or false.
T
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What is the difference between hypothesis testing and discovery-based research?
A. Hypothesis can be validated or invalidated while discovery-based research relies more on collection and analysis of data without a hypothesis B. Discovery-based science can be validated or invalidated while hypothesis based research relies more on collection and analysis of data C. There is only one type of experimental approach, both terms describe the same approach. D. Hypothesis-based research results in believable science while discovery-based research results in unreliable conclusions.
B cells are genetically programmed to produce unique antibodies; similarly, T cells are genetically programmed to produce unique T-cell receptors
a. True b. False Indicate whether the statement is true or false
Variation among individuals that is due to factors other than genetic factors is called ________
A) phenotypic variation B) environmental variation C) broad-sense heritability D) narrow-sense heritability
Respond to the following statements in reference to the five stages or structures involved in the development of the human egg. Answers may be used more than once or not at all.
A. This diploid germ cell produces primary oocytes by mitosis. B. Human females are born with about 2 million of these cells that entered meiosis but stopped in prophase I. C. This cell becomes the mature egg only after fertilization in humans. D. This cell is the first sex cell stage to be in the haploid state. E. This cell contains a haploid set of chromosomes but will never be fertilized; often disintegrates and is reabsorbed in the body. F.