Aheterozygous tall pea plant is crossed with a short plant. the probability that an f1 plant will be tall is

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

The response is the basis for vaccination. primary secondary tertiary none of the above