Answer:Over time, carbon-14 decays in predictable ways. And with the help of radiocarbon dating, researchers can use that decay as a kind of clock that allows them to peer into the past and determine absolute dates for everything from wood to food, pollen, poop, and even dead animals and humans.
Explanation:
An open circulatory system simply
means that the blood flows out of vessels and into the spaces or sinuses. Invertebrates,
insects and crustaceans has an open circulatory system where pump blood goes
into a hemocoel and diffusing back to the circulatory system between cells. In
other animals, the heart pumps the blood into the body cavities, spaces or
sinuses, where the blood surrounds the tissues.
Answer:
because the sun shines on it when it rotates. depending on where the sun rises and setes makes the lunar phases. Such as full moon. New moon.
Explanation:
The advantage of natural breeding are the following:
1. cattle produce may eradicated hereditary sickness.
2. the cattle that is produce is fitter, stronger and can survive through harsh condition because they are use to it.
3. they can produce better food
I would say for number three the answer would be 3
