Explanation:
The answer is c because most of our protein sources came from the animals we hunted. Tools like spears, were made to be thrown at larger prey from a distance. Men hunted together while women made bread, gathered fruits, vegetables, made clothing, etc.
Asthma is one disease of the respiratory system. Asthma is a chronic inflamation of the lung airways that causes coughing, wheezing, chest tightness, or shortness of breath. Symptoms can escalate when a person with asthma is exposed to their triggers, which may include the following:
- tobacco smoke
- air pollution
- factory fumes
- cleaning solvents
- pollens
- foods
- cold air
- exercise
- chemicals
- medications
The rapid release of air/ gas bubbles during cooling
John Kay invented the spinning jenny, which increased the production of thread.
The correct option is B.
<h3>What is spinning jenny?</h3>
The spinning jenny is a multi-spindle spinning frame invented by John Kay.
It was one of the great inventions that started the Industrial Revolution in England's textile industry.
This machine was used to spin thread and wool.
It was developed in 1767.
Thus, the correct option is B, John Kay.
Learn more about spinning jenny, here:
brainly.com/question/1642538
Answer:
<em>A. If populations can interbreed, they are considered one species.
</em>
Explanation:
The organisms of a species have the ability to interbreed with one another leading to the formation of an offspring. For speciation to occur, the organism have to get diverged and isolated.
In speciation, a hereditary species parts into at least two relative species that are hereditarily not quite the same as each other and can never again interbreed.
In Allopatric speciation, the species gets geographically parted from their parent and evolves accordingly while in sympatric speciation, evolution of species occur when it stays in the same place as their parent.
