Answer:
Explanation:
Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories. Scientists observe in many ways – with their own senses or with tools such as microscopes, scanners or transmitters to extend their vision or hearing
Answer:
The longer-spined sea urchins existed before the shorter-spined sea urchins
Explanation:
The lower buried is what died off first and the recently buried is the newly evolved version.
What are we supposed to answer please I don’t understand
Homeostasis is a characteristic of life,Homeostasis can occur at the cellular level,<span>Homeostasis can occur at the system level.</span>
Answer:
Water or H2O
Explanation:
water (H2O) is the answer
