Answer:
a) Dehydration
b) water (H2O)
Explanation:
Polymers are large complex substances that arise from the joining of smaller simpler units called Monomers. A monomer is joined together by a covalent bond, to form a polymer molecule. However, this process usually accompanies the loss of a water molecule due to the hydrogen (H+) and hydroxyll (OH-) ions that is contributed by each monomer unit. Hence, this process is called a DEHYDRATION REACTION.
For example, glucose moleculea as monomer units combine together in a dehydration reaction to form larger polymers such as starch, glucose etc.
A chemical substance that an organism requires to live. a nutrient that is scarce or cycles slowly through an ecosystem. ensures that nutrients will be circulated throughout the biosphere.
Answer: The threats of environmental changes to the fitness, survival and reproductive success of individuals, and ultimately to the survival of species and ecosystems come from many directions: habitat destruction, disruption of food chains, changes in disease and parasitic loads, increased pollution and direct and indirect
Explanation:
<h3><u>Answer and Explanation</u>;</h3>
- Purines: Heterocyclic rings are synthesized one atom at a time, first atom attached to ribose phosphate (source is PRPP) and then all the other atoms are added .
- Pyrimidines: Common intermediate, orotate, synthesized first, then orotate is attached to ribose phosphate (source is PRPP or 5-Phosphoribosyl-1-pyrophosphate).
Answer:
The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm. Within the testes are coiled masses of tubes called seminiferous tubules. These tubules are responsible for producing the sperm cells through a process called spermatogenesis
Explanation:
its copied but hope it helps
