The acacia tree provides a number of benefits to the pseudomyrmex ants that llive on or near the trees. the trees provide shelter, protein, and nectar. the ants provides several forms of protection. they attack and remove herbivorous insects. they also remove vines that might overgrow the acacia and kill the growing shoots of nearby plants that might become competitors. the relationship between these ants and the acacia trees may best be described as a) competitive. b) mutualistic. c) predatory. d) symbiotic.

What is turgor pressure, what causes it, and what does it do for a plant?

How do bacteria protect their genetic material and cytoplasm during harsh conditions

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical? a. some people consider embryos to possess rights equal to those of fully developed human beings. b. extracting stem cells from embryos is a very energy-intensive process, which consumes resources that could be used elsewhere. c. embryos are difficult to obtain, so the monetary cost of using them for research outweighs their benefit. d. the process of extracting stem cells from embryos generates biohazardous waste that cannot be safely disposed of.