Ionic (metals and non metals) covalent (non-metal and non-metal) metallic (metal and metal) and hydrogen (between hydrogen molecules)
Answer:cell walls; plant-like
Explanation:
Diatoms are white, porous and soft I'm nature. When it's die, it's leave it's shells which is made of silica glass.
The silica glass is some how abrasive which is why it is use as toothpowder.
Diatoms are microscopic bit of silica glass which are use as fine abrasive in toothpaste to clean teeth.
they are all smooth which tells us they are new
B.
Viruses are classified as biological agents instead of a living things, $& they are only made of genetic material.
Answer:
Sex linked genes are found on X and Y gene only which is unlikely characteristics of linked gene being found on any gene other than sex gene X and Y . Their inheritance pattern is also different
Explanation:
Similarity
a) Both the sex linked and linked genes are carried along with parent gene (to which they are linked) to the new offspring.
b) Can be found on any gene
Difference
a) Linked genes have no association with the chromosomal sexuality of an individual or type of gene to which they are associated while the sex linked gene depend and are transferred based on the chromosomal sex of an individual and along with the specific gene to which they are linked only. The X linked gene will be transferred only by female or male X gene and not the Y gene.
b) Only found on the X and Y gene