Explanation:
When a person opens the door, he or she uses 3 systems:
1. Nervous system: from the nervous system, neural instructions are generated through electrical impulses towards the muscles of the upper limb so that they make the necessary movements to open the door.
2. Muscular system: through the muscles of the trunk and the upper limb, it generates voluntary movement to open the door.
3. Skeletal system: the bones are the support of the soft tissues and the fulcrum of most of the skeletal muscles. In this sense, it serves as a support for the muscles of the trunk and the upper limb to carry out the movement of opening the door.
we can conclude that the correct answer is:
Answer:
1. Nervous system: instructions are generated from the nervous system by means of electrical impulses towards the muscles of the upper limb so that they carry out the necessary movements to open the door.
2. Muscular system: the muscles of the trunk and the upper limb generate voluntary movement to open the door.
3. Skeletal system: it supports the muscles of the trunk and the upper limb to carry out the door opening movement. It also has joints that help the mechanical movements necessary to open the door.
Answer:
C
Explanation:
- The answer can't be A since a solid, liquid and gas can have the same color. For example you can take water. It exists in three phases ice, liquid and water vapour; they are all colorless.
- The arrangement and movements of the particles in the substance however is different in each. Particles in solid are put more closely together and held at fixed positions making them having higher density. Liquid particles are more further apart than solids and are able to move freely. Gas particles are more loose than solids and liquids allowing them to travel more faster. That is why you can smell a perfume even when it was sprayed far away.
Answer:
good insulators; poor conductors
brittle
malleable and ductile
good conductors of heat and electricity
26.98
protons/neutrons
Nobel Gases
Ion
Nucleus
negative
silicon and carbon
6 protons and 8 neutrons
6 protons and 7 neutrons
Atomic Number
Neutral atom
No, because protons identify the atom
2
brittle, shiny nd solid at room temperature, semiconductor
6
mass number
+2
-2
They only need one more electron
Negative ion
reactivity, ion formation
all your answers were correct
Answer:
Sea turtles are now facing much greater challenges as a result of climate change. Coastal ecosystems will be eroded and damaged as sea levels rise and storms become more strong. Warming ocean currents could expose sea turtles to new predators while also damaging the coral reefs that some of them depend on to survive.
Explanation:
B. Active transport
I don’t really know I’m using it as an answer because transportation and I thought back to the question I do t know I can’t do explanations very well
