Type A– blood. Which blood type could she receive in a blood transfusion?

Here's an easy thing to remember!

AB blood types can receive any blood type.

O can donate to any blood type.

( - - ) ( + + ) Any positive blood can only go to positive blood. Same for negative.

A- => A-

O = O

AB => B

O- => B-

O- => A-

All of these are correct. (above)

And some incorrect examples. (below)

O- => O+

B => A

AB- AB+

A+ => A-

    (hope this helps!)

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.