<span>The appropriate answer is A. the hemisphere is is tilted toward the sun and the sun reaches its highest point in the sky. This usually occurs on June 20 or 21. At this time the northern hemisphere experiences its longest day. Summer in the nothern hemisphere means that the earth is tilted towards the sun and receives sun rays that are more direct. </span>
Planarian<span>, </span><span>any of a group of widely distributed, mostly free-living flatworms of the class Turbellaria
These are elongated and ciliated
Mouth is middle of the body
hope it helps</span>
There are so many examples for that in different areas, like TPBA experiment carried out in our lab recently.Here's one link: http://www.alfa-chemistry.com/tpba-cas-172285-72-2-item-294462.htm
Enzymes called protease breakdown the protein in the stomach
Answer:
Sexual changes during puberty are prompted by hormones produced in the gonads.
The pituitary gland makes hormones that regulate other endocrine systems.
Explanation:
The gonads are the primary reproductive organs (testes and ovaries) that mainly produce eggs and sperm, but also produce hormones during puberty.
The pituitary gland controls the functions of many of the other endocrine glands. It also produces many hormones.
I hope this helps!
