When a wave has a height of 5 feet and a wavelength of 15 feet then it has a wave base of 7.5 feet. Wave base is equal to the half of the wavelength so if you consider your wavelength to be 15 feet then it is divided into 2 that would give you answer of 7.5 feet.
<span>There are many indicators for predator presence. Some of them are:
Being able to spot predator marks like scratches or fur.
Being able to feel predator movements.
</span><span>Echo-location </span>For example, moths respond to the echo-location calls from their bat predators; moths drop to the ground once they hear the sound pulse from the bat.
Progesterone is a steroid hormone that is usually made by the adrenal cortex along with the gonads, which consists of the ovaries and testes
hope this helps
Answer:
C.
Explanation:
He removed a level and added a kingdom.
Plant cells? maybe? i learned this last year
