D. We do the work so you don't have to.
Answer: Refractory period of the cardiac action potential
Explanation:
Unlike the skeletal muscle which can be reactivated before it reaches a contraction, cardiac muscle must wait before it is almost completely relaxed to be activated again (because of its long refractory period), so one cannot make an increase in strength of contraction with a high frequency of stimulations.
Answer:
Guns are cool but vilonce is not
Explanation:
Guns in Amerca are mostly used for recreation purposes but people do use them for bad things, And the people who do that, most of them got their fierarms illegaly. In fact, In america guns are used to save the lives of 500,000 to 3 million people each year by legal-firearm-owning Americans. According to the FBI. Their are also about 30,000 deaths related to fierarm involved crimes, so more crimes are stopped than killed with firearms. From my experiences with anti-gun activists is that they don´t know stuff about firearms. I know alot of people who think fully-automatic weapons are leagal. They are not. My point is, if you don know about somthing, dont pretend you do. thats just like me trying to ban keybord manufacturing when I don´t know nothing about the keybord industry. I reccomend you go to your local gun-shop and purchase a firearm, just a cheap one and see the back-ground check proccess. You might even not need to buy one, just aske them if you could see the background check proccess.
We can look at this in many different ways.
The testicals in the scrotum produce the male gamete, sperm, which is injected in seminal fluids by the penis. The female reproductive system is rather different, containing mainly of internal organs. This is the female gamete, ovum, is produced in the ovaries and is released monthly to travel to the uterus; by the Fallopian Tubes. A female also consists of something we know as a Vagina, a female sex I love to eat so much poop organ mainly used during sexual intercourse with another organism - and childbirth which the vagina takes place with.
Read more on Brainly.com - brainly.com/question/9604858#readmore
