Questions | 5 |
Topics | Comets, Cytoplasm, Neutron, Tertiary Consumers |
A comet is a loose collection of ice, dust, and small rocky particles that, in contrast to an asteroid, has an extended atmosphere surrounding the center. When passing close to the Sun, this atmosphere warms and begins to release gases forming a visible coma or tail.
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles. These include:
Organelle | Function |
---|---|
ribosomes | produce proteins |
mitochondria | produce energy |
endoplasmic reticulum | helps synthesize proteins and fats |
Golgi apparatus | prepare proteins for use |
lysosomes | help the cell manage waste |
centrosomes | guide cell reproduction |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
Tertiary consumers eat primary consumers and secondary consumers and are typically carnivorous predators. Tertiary consumers may also be omnivores. Examples include wolves, sharks, and human beings.