Sturdy fence or wall surrounding a castle, protecting the structure from harm and only allowing entrance by outsiders through specified gates and openings.
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for vacuole:
</span>the vacuole is like a refrigerator.it stores food and water for the cell and a refrigerator stores food and water for people
Answer:
Choices 1, 2, and 3 describe the cardiovascular ( circulatory ) system
Choice 4 represents the excretory system
Coal is expected to have the highest rate of consumption in 2030.
Answer:
Mitosis, Meiosis, and both are written below
Explanation:
Mitosis: produces more somatic (body) cells, purpose is for healing and growing, the daughter cells are exact replicas
- This is because mitosis occurs in body cells and is used for growth, so all the daughter cells are the same.
Meiosis: results in sex cells (gametes), results in eggs and sperm, purpose is for creating new individuals (eventually), each daughter cell is different, has 2 separate division stages
- This is because meiosis occurs in gametes and is used in reproduction.
Both: Chromosomes need to replicate before the whole process begins, a form of reproduction
- This is because both are reproducing (they are dividing) and DNA must be replicated so each daughter cell has it.
Answer:
The correct answer is polycistronic mRNA
Explanation:
There are two types of mRNA monocistronic and polycistronic. Monocistronic mRNA is the mRNA that codes for only one protein or polypeptide because it has single cistron. It is present in eukaryotes mainly.
A polycistronic mRNA has multiple cistron and codes for two or more proteins of polypeptides. Polycistronic mRNA is mainly found in prokaryotes. Prokaryotes have polycistronic mRNA because they are simpler than eukaryotes so only one promoter and operator is enough to translate multiple genes.