Answer:
The correct option is <em>A. Fins are an adaptation that aid in swimming.</em>
Explanation:
Fins are an adaptation which brings about different kinds of locomotion in fishes. They allow fishes to move forward, to turn their bodies, to keep an upright position. They also aid the fishes to swim. Also, there are certain types of fishes which can fly using pectoral fins. However, the fins were first used by fishes for locomotion. There are different types of fins present in different kinds of fishes. Each kind of fin is best suited to perform different actions.
cholecystokinin is the answer, good luck!
Answer:
I'm almost certain that it's mucus. (been a hot sec since I took a bio or anatomy class)
Explanation:
Here's a quote: "The colon secretes mucus to bind and lubricate the food waste to help it pass through smoothly as it is dehydrated." -the Cleveland Clinic
You can Chanel it around a town so there is no flooding
If some place needs water then you can divert the water to the specific place
Also stopping it and creating a dam can offer the positive results of inexpensive energy, increased recreation opportunity and flood control
Hope this helps
Answer:
The function of B cells is to make antibodies against antigens
Explanation: