WILL GIVE BRAINLOEST ANSWER IF CORRECT Which will form an ionic bond?
A. A positive ion and a negative ion
B. Two positive ions
C. Any two atoms
D. Two carbon atoms

Fill in the blank 1. digestion occurs in the small intestine through the action of enzymes. 2. urea, excess water, and other waste materials are eliminated in a water fluid called 3. can cause infections by injecting dna or rna into hosts. 4. the human immune system produces in response to a vaccine, which later can bind to and destroy a pathogen if it invades. 5. are structures that link bone to bone at a joint 6. in the heart, blood flows from the right atrium to the right ventricle, where it is pumped to the the words i can use are: lymphocytes gliding pivot gas urine absorption dermis fulcrum lungs chemical viruses capillary vertebrae esophagus tendons antibodies synapses ligaments kidneys pathogens

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance

What are 3 reasons that natural selection occurs