First off, quick definition: <u>molecules</u> = a group of atoms/elements (not just a single element like "O" or "H", so all of these are molecules in this problem and we can instantly rule out answer choice D).
In this problem, your given chemical equation. The <u>reactants</u> (starting materials) are on the left side of the arrow (→). The <u>products</u> (finishing materials) are on the right side of the arrow. Sometimes special reactants (like enzymes i.e catalase) are written over top of the arrow instead of on the left side of the arrow.
Anyways, we can read this reaction like this:
- Start out with 2 molecules of 
- Add Catalase
- End up with 2 molecules of 
(water) and 1 molecule of 
(oxygen)
Therefore, catalase must helped break down the bigger molecules into the small "building block" molecules of and .
***SEE PIC FOR VISUAL...if you want. This always helped me. You can see easier that the bigger molecules are being broken down into multiple smaller ones***
<h2>
<em><u>Correct Answer:</u></em><em>
B</em></h2>
Unlike fully aquatic marine mammals, or Cetacea, sea otters are bi-terrestrial and are capable of living on both land and in the water. Like all marine mammals, otters have webbing between their toes with acts like a flipper as well as a streamlined body to enable them to move quickly through the water. The only adaption that is not applicable to otters is <span>d. breathing apparatus on the top of the head.</span> Only marine mammals such as whales, dolphins, and porpoi have a blow hole on their dorsal side of their body. Another difference from Cetacea is an otter's thick fur. I believe the ratio for pelt density is one million lock of fur per square inch. Otter fur is also much longer compared to that of other marine mammals like pennipeds. Their long fur makes otters especially susceptible to oil and oilspills resulting from underwater oil mining accidents.
Answer: Margin shape
Explanation:
In addition to the leaf shape (narrow and broad) and leaf vein arrangement (parallel and non-parallel), leaf <u>margin shape</u> is used to classify plants.
Explanation:
I don't know the exact answer but I can tell you that lipids are considered the building blocks of cells . the body uses lipids as a storage for energy and insulation and to make cell membranes. without lipids the cell will die . the way lipids function is .... lipidsfunction as an energy reserved regulate hormones transmit nerve impulses cushion vital organs and transport fat soluble nutrients.
I hope this can help you a little bit good luck!
