Answer:
was caused by global warming that left ocean animals unable to breathe. The largest extinction in Earth's history marked the end of the Permian period, some 252 million years ago
Explanation:
I can’t see the image but I would guess animals such as deer or horse or elephants or any large animal have the ability to run over the rocks and turn them to smaller sediments
I think it 700 million years because I took the same question and that’s what I put.
Answer:
The first 2 weeks of development is the germinal period. The germinal period begins with conception and ends when the blastocyst is fully placed into uterine tissue. Next, the embryonic period lasts from implantation until about 8 weeks from the time of conception.
Explanation:
The third thru the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.
The right answer is D) a structure made of two or more tissues functioning together for a common purpose.
An organ is a set of specific tissues capable of performing one or more specific functions. The human body has 78 organs and these organs can be grouped into systems (there are 11 of them) to perform more complex functions. For example, the bronchi and lungs are organs that belong to the respiratory system. Organs are necessary to live in good health and some organs are essential. These are the brain, heart, lungs, kidneys, liver and pancreas.
