What is the significance of an extant phylogenetic bracket?
What will be an ideal response?
An extant phylogenetic bracket allows us to make inferences about characteristics of extinct animals that do not fossilize, such as behavior and physiology. For example, because parental care is present in both crocodilians and birds we can infer that it was probably also present in the lineages bracketed by crocodilians and birds.
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Self-regulating control mechanisms usually operate by a process called ______
feedback. Fill in the blank(s) with correct word
Which of the following is a product of glycolysis?
A. Acetyl-CoA B. Lactate C. Glucose D. Pyruvate E. Carbon dioxide
Amylase is a digestive enzyme that breaks starches down into sugars through ________ reactions
A) endergonic B) anabolic C) hydrolysis D) dehydration synthesis
The effects of cell-mediated immunity are the result of activities of ________.
A. dendritic cells B. helper T cells C. B cells D. macrophages E. cytotoxic T cells