Index Fossils <span>can be used to determine if two rock layers were deposited at the same time.</span>
Answer:
Cereals give carbohydrates which provide energy.
Pulses give proteins which build our body.
Vegetables and fruits provide vitamins and minerals.
An unbalanced Chemical Equation only tells us which componds react With eachother and what the Product is.
A balansed Equation also tells us how many molecules of each reactant, and how many molecules of Product in a reaction.
Prokaryotes don’t have organelles (which are the cell’s ‘organs’ that carry out the cells functions).
Plant cells and animal cells are eukaryotes because they have organelles.
Plant cells are kind of stiff because of their structure. They have a cell wall, which is really tough. Also, plant cells perform photosynthesis, using an organelle called a chloroplast. Finally, plant cells have a large vacuole that stores the cells waste.
Animal cells, unlike plant cells, lack a cell wall. That means they’re free to wiggle if they wanted to. Animal cells have lysosomes that assist in reproduction.
<span>The question is asking us to choose the order of increasing complexity and the correct answer is
(3) organelles → cells → tissues → organs. Organelles are parts of cells, for example a mitochondrium is an organelle. Many cells form tissues and tissues form an organ. Many organ for an organism, for example, a human being is an organism - that's the whole animal or plant. </span>
