This hard but flexible structure is found in the nose and ears.

a. tendons

b. bones

c. ligaments

d. cartilage

Genetic traits are determined by one or more A cells B organelles C random chances D genes

Describe how energy flows into, through, and out of the owl's food web.

Why is cow manure used as a potential source of starch degrading bacteria

What are the two ways scientists can date fossils or other objects

Calculate the ratios of the genotypes and phenotypes of the offspring in the F1 generation.

Which organism is able to cause an infection? (A) bacteria (B) skin cell (C) white blood cell (D) red blood cell

Which is true about enzymes? Question 20 options: They act on nonspecific, randomly chosen substrates. After a reaction, they cannot be reused. They can speed up metabolic processes in the body. They cannot change shape.

Why does the meiosis produce cells with only half the amount of DNA? How does this aid in the formation of a healthy zygote?

Which way does the sun's gravity act on any body in orbit? A. pulls it forward in its orbit B. pulls it backward in its orbit C. pulls it toward the sun

Which two processes result in variations in sexually reproducing species? (1) mutation and genetic recombination (2) mitosis and natural selection (3) extinction and gene replacement (4) selective breeding and cloning