I WILL MARK ANSWER AS BRAINLIEST Why is the age of the ocean crust used as evidence for plate tectonics? A Older ocean crust is being melted back into the mantle at divergent boundaries. Older ocean crust is being melted back into the mantle at divergent boundaries.

B There are striations on the ocean crust where the continental crust moved over the top of it. There are striations on the ocean crust where the continental crust moved over the , top of it.

C Ocean crust is older than continental crust so it shows that the continents are younger. Ocean crust is older than continental crust so it shows that the continents are , younger.

D New ocean crust is being formed at underwater divergent boundaries pushing away older crust.

Regarding most of the narrator’s story, which word best describes the tone?

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

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48