Which is not an echinoderm?
A.)starfish
B.)sea urchin
<h2>C.)squid</h2>
D.)sand dollar
<h3>Starfish, sea urchin and sand dollars are echinoderm. </h3>
In the Arthropods experiment the control is not needed since c. the treatments can then be compared to each one rather than that of a control. Hope this is the right answer and would be of big help to your assignment.
Answer:
In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size.
Explanation:
a. bone structure is correct because many species look similar but we can't tell if they have an EVOLUTIONARY relationship unless we look at bone structure.
Answer:
Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos. Another important type of evidence that Darwin studied and that is still studied and used today is artificial selection, or breeding.
Explanation:
