Answer:
tracheae
instead of lungs, insects breathe with a network of tiny tubes called tracheae
Inclined plane allows the same work to be done with a smaller force exerted over a greater distance.
Organism most likely to live the same time as Branchiopoda were trilobites
Answer:
Explanation:
Carbon Bonding
The four covalent bonding positions of the carbon atom can give rise to a wide diversity of compounds with many functions, accounting for the importance of carbon in living things.
Carbon contains four electrons in its outer shell. Therefore, it can form four covalent bonds with other atoms or molecules. The simplest organic carbon molecule is methane (CH4), in which four hydrogen atoms bind to a carbon atom.
However, structures that are more complex are made using carbon. Any of the hydrogen atoms can be replaced with another carbon atom covalent bonded to the first carbon atom. In this way, long and branching chains of carbon compounds can be made . The carbon atoms may bond with atoms of other elements, such as nitrogen, oxygen, and phosphorus . The molecules may also form rings, which themselves can link with other rings . This diversity of molecular forms accounts for the diversity of functions of the biological macro molecules and is based to a large degree on the ability of carbon to form multiple bonds with itself and other atoms.
Answer:
B) is answer
Explanation:
The advantages of asexual reproduction include: the population can increase rapidly when the conditions are favourable. only one parent is needed. it is more time and energy efficient as you don't need a mate.
