Answer:
C. The testes
Explanation:
The testes, also called testicles, are the only external male sex organs from the list of answers. They are in charge of producing sperm and testosterone. They actually need to be outside the body, to be just a tiny bit cooler than the main body core temperature in order to produce sperms, that's why they are placed in the scrotum pouch.
The prostate and Cowper glands are internal as well as the vas deferens which is a canal transporting the sperm.
Mean # of stomata per. grid is 4.5.
Mean number of stomata per 1mm^2 is 45000.
I'm sorry please I don't know the last one
Answer: The body systems that are involved are:
--> Nervous System and
--> muscular system.
Explanation:
The body is made up of different organ systems which usually works together to bring about proper functioning of the living organism. Examples of the body systems includes:
--> The nervous system: This system enables the animal to detect and respond to stimuli rapidly.
--> The muscular system: This system enables the organism to move from one location to another.
Both the nervous system and the muscular system work together to bring about coordination of activities. When you step on a tack and jeck away, sensory receptors detects stimuli from the external environment and pass the information received as an electrical impulses to the brain through the nerve fibres. The information is processed in the central processing region which is the brain.
The effectors such as the muscles goes into action upon receiving nerve impulses from the brain. Such actions includes muscular contractions which helps you to pick up the tack and put it on your desk.