It is the cell nucleus.
The nucleus coordinates the cell's activities which include growth, intermediary metabolism, protein synthesis, and reproduction (cell division).
It regulates activities of the following organelles in the cell.
(1) Endoplasmic reticulum which synthesizes carbohydrates and lipids.
(2) Golgi apparatus which manufactures , stores and ships certain cellular products.
(3) Lysosomes which digest cellular macromolecules
(4) Mitochondria which provide energy for the cell.
(5) Peroxisomes which detoxify alcohol, form bile acid and use oxygen to break down fats.
Answer:
The idea of concentrations and gradients within them is important when understanding the movement of substances across cell membranes. The more particles there are in a certain volume, the more concentrated those particles are. A solution with a low solute concentration has a high water concentration, and a high water potential.
You would expect an earthworm to have no exoskeleton because as you see it is very flexible and soft. Organisms with such have body parts that are divided and an earthworm do not have any visible parts on them also having an exoskeleton would not allow an organism to move like an earthworm does.
Answer:
Allele frequency can be described as a phenomenon which measure how common an allele is in a particular population. It tells about the genes which are richest in a gene pool and it also shows the genetic diversity in a population. Allele frequency is often expressed in percentages.
Natural selection tends to favour those organisms that are best adapted to live in an environment and which can withstand changes occurring in the ecosystem. If due to some circumstances, a trait becomes less useful to organisms in a population then by natural selection the allele frequency for those alleles will reduce with time. Similarly, the alleles which code for better genes for an environmental change will be increased due to the phenomenon of natural selection.
Plants need to carry out both photosynthesis to get food which the formula is CO2 + 2H2A + photons ==> [CH2O] + 2A + H2O <span>and cellular respiration keeps the plant alive maning its empature and vitals.
hope this helps.
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