Which of the following is a type of local signaling in which a cell secretes a signal molecule that affects neighboring cells?
A) hormonal signaling
B) autocrine signaling
C) paracrine signaling
D) synaptic signaling
C
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Populations can be described in terms of their diversity and stability
What will be an ideal response?
Which of the following is not an advantage of molecular phylogenetics as compared to morphological phylogenetic methods?
A. A single gene can provide a lot of information B. Nucleotide sequences are clearly delineated, so unlike morphological characters, are unambiguous C. Molecular data is easy to use in mathematics and statists D. It doesn't require any specialized equipment
Who is credited for discovering cells?
A. Anton van Leeuwenhoek B. Francis Crick C. Charles Darwin D. Joseph Farman E. Robert Hooke
In England, at a time when milk was still delivered to doorsteps each morning in foil-capped glass bottles, a songbird called the great tit started pecking through the caps and drinking the cream in the necks of the bottles. This behavior spread through
the great tit population in a matter of years. The emergence and spread of this behavior probably depended on A) trial-and-error learning plus habituation. B) trial-and-error learning plus social learning. C) trial-and-error learning plus imprinting. D) habituation plus social learning.