Answer:
Explanation:
Carbon has 4 electrons in its valence (outermost) shell so it makes 4 bonds with other atoms.
<u>Organic Compounds:</u>
Those compounds which consist of hydrocarbons and its derivatives are organic compounds.
So, All organic compounds consist of carbon with some exceptions still being there!
Hope this helped!
<h3>~AnonymousHelper1807</h3>
The answer is skin.
There are four basic types of animal tissue - epithelium, connective, nervous, and muscle tissue. Epithelial cells form epithelium which covers surfaces of blood vessels and organs in the body. All glands are, as well, made of epithelial cells. Also, e<span>pithelial cells grow close together to form the body's skin. </span>
Crossing over? That involves the random exchange of chromosomes.
Answer:
Sponge; Radial Symmetry; Endoskeleton; Absent Appendages; Absent Segmentation
Cnidarians; Radial Symmetry; No Skeleton; Non-Jointed Appendages; Absent Segmentation
Roundworms; Radial Symmetry; No skeleton; Absent Appendages; Absent Segmentation
Annelids; Radial Symmetry; No skeleton; Absent Appendages; Present Segmentation
Mollusks; Bilateral Symmetry; Exoskeleton; Non-Jointed Appendages; Absent Segmentation
Arthropods; Bilateral Symmetry; Exoskeleton; Jointed Appendages; Present Segmentation
Echinoderms; Bilateral Symmetry; Endoskeleton; Non-Jointed Appendages; Absent Segmentation
Vertebrates; Bilateral Symmetry; Endoskeleton; Jointed Appendages; Absent Segmentation
Replication is important in science so scientists can “check their work.” The result of an investigation is not likely to be well accepted unless the investigation is repeated many times and the same result is always obtained.