Answer:
Hydrogen bonds make water molecules spread out when they freeze. This makes ice less dense than water and allows ice to float. If ice did not float then oceans and lakes would freeze from the bottom up, killing marine life by trapping organisms in the ice. When ice floats, it insulates the water below, keeping it at around 4 degrees C or 40F, which does not freeze and allows fish to survive the winter.
Explanation:
Answer: D.
Explanation: Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear. Other adaptations are behavioral. Behavioral adaptations are the things organisms do to survive. For example, bird calls and migration are behavioral adaptations.
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
<h2>╔═⋄═◇═◈═❖═✧═☆═✧═❖═◈═◇═⋄═╗</h2><h2 /><h2>➤ Answer </h2>
☆ The function of the muscular system to respond to information from the brain, and contract accordingly.
<h3>➤ Reason</h3>
✧ The nervous system is responsible for sending signals to the body to control it. Your nervous system can send electrical pulses to your muscles, which they respond accordingly, moving in what ever way your nervous system told it to. Your nervous system is controlled by your brain, and this is why you can control these movements. Say for example, when you move, your fingers, you are actually just sending electrical signals to your hands which cause your muscles to contract, making your finger move in a certain direction. The muscles are connected to your bones, which are connected to joints, allowing the bones to move in different directs when your muscles contract.
<h2>✧ Your brain is powerful.</h2><h2 /><h2>╚═⋄═◇═◈═❖═✧═☆═✧═❖═◈═◇═⋄═╝</h2><h2 /><h2 /><h2 /><h2 /><h2 />
