Which statement is true for a Δ-connected transformer winding?

Pheromones are semiochemicals. A single compound used as a signal within a species cannot be used as cues by other species.

Altruism is seen in ant colonies, as well as other eusocial organisms such as bees and wasps. Consider why workers exhibit altruistic behaviors (e.g., colony defense, waste management) if there is potential to cause harm to the altruistic worker. Which of the following is TRUE?

Analyze the following: The pickled piper snare is a small green flightless bird about the size and shape of a tennis ball. At some point in the past, a mutation arose and individuals with longer legs were able to have more offspring (larger egg clutch). This enhanced fitness because the taller birds were able to reach little caterpillars that were abundant at the top of small bushes. Eventually, the taller leggy pickled piper snares grew very round (the size a soft ball) due to all the stored fat and could have even more babies because they were eating so well. Eventually, their legs were so long that they began having difficulties performing daily tasks such as drinking water. Without water, the tallest birds began to die. Besides eating the caterpillars, there was no longer an advantage to having even longer legs. What type of selection resulted in long legged pickled piper snares?  

Which of the following is considered a “basic assumption” for constructing phylogenetic trees?

A female stinkbug deposits egg-encapsulating symbionts in a jelly, that is then consumed by her newly born nymphs. This is an example of horizontal transmission.

A morphological-based phylogeny is a hypothesis about evolutionary relationships.

Consider the following: Researchers create a study to determine the specific behaviors in ants that are prompted by a specific cuticular hydrocarbon chemical profiles. Researchers are studying mosquitoes to determine which insect repellent compounds (e.g., citronella and picaridin) cause a negative behavioral response. Both studies are basic science.

Co-evolution can be defined as reciprocal evolutionary change that occurs as a result of the interactions between organisms. This process can operate within species and between species.

Consider the following scenarios that describe communication. Reflect on what you have learned about this topic and select the statement that is FALSE.