The cells that make up plants and animals have some structures in common. However, there are some clear differences between the two cell types. Which of the following structures are likely to be found in animal cells but NOT in plant cells? 1.cilia and flagella
2.chloroplasts and cell wall
3.nucleus and nuclear envelope
4.golgi apparatus and mitochondria

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

Describe the two types of vascular tissue