Yea you are right. Animal cells do not have cell walls though plant cells do have cell walls
Answer:
e.) the biodiversity of the pond has decreased
Explanation:
Biodiversity or biological diversity refers to the variety of living organisms in a particular area. It can be a measure of number of species of living organisms in that area. The more the number of species, the higher the diversity and vice versa.
<em>Adjacent development close to the pond can be viewed as habitat disturbance. Habitat disturbance affects biodiversity in a number of ways including:</em>
- <em>A shift in the species composition of the habitat</em>
- <em>Outright extinction of certain species from the population</em>
<em>Overall, the species diversity become reduced as a result of a shift in species composition of extinction of some species. Hence, the best indicator of habitat disturbance is a decrease in biodiversity of the habitat.</em>
The correct option is e.
Answer:
limestone, chert, dolostone, gypsum, halite (rock salt), diatomite, and chalk.
hope this helps!
Explanation:
Answer:
<u><em>Sediment A: </em></u>
- Carbonate sand
- Sediment made of seashell and calcite
- Sediment that has travelled farther
<u><em>Sediment B: </em></u>
- Quartz sand
- Made of harder minerals
- Forms when rocks break apart
Explanation:
<u><em>Sediment A</em></u><em>:</em> In the figure shown on left, the particle size is small and corners are round. This suggests that it is most likely made up of carbonate which can dissolve easily in the presence of water and CO2 forming weak acid (carbonic acid). Likewise, it is also possible that the material has traveled longer distances and due to erosion, the corners of the particle has become rounded. The carbonaceous material in the sea environment is often made by carbonate producer organisms that use calcite to make the protective shell.
<u><em>Sediment A</em></u><em>: </em>In the figure shown on right, the material is bigger in size with hard and sharp corners. This means that it is either broken recently from the rock and has not traveled longer distances OR, it is made up of harder minerals that cannot break easily by weathering and erosion process. Quartz sand has such properties.
