Answer:
Logistic growth
Explanation:
Populations will grow if there are enough resources.
However, as these resources become limited, population growth will tend to slow down and stabilize when it reaches the <em>carrying capacity</em> of the resources.
This type of growth is logistic growth.
Answer:
because some genes expressed in neuron is not expressed in WBC's.
Explanation:
Every cell in the body contains the same DNA sequence and the same gene but all the genes are not expressed in a cell. Each cell expresses a particular set of genes according to the function they perform.
For example, a red blood cell will express a gene that code for hemoglobin to carry oxygen but white blood cell do not carry oxygen, therefore, it will not express the gene of hemoglobin rather it will express a gene that make proteins that can be used to kill pathogens.
Therefore according to the function of cell genes are expressed so neurons express genes that make neurons receive and respond to electric signal.
The secretion of human growth hormones (HGH) is regulated at the genome level by genetic and epigenetic factors (environment and diet among others). And the expression of the gene of this hormone differs from one individual to another, so the quantity produced differs between individuals, which explains why we observe individuals of different sizes in a population.
Growth hormone acts by interaction with cellular receptors, it affects carbohydrate, lipid and protein metabolism.
A key component of growth is the growth hormone releasing factor or the growth regulating factor (GH-RF or GRF). This chemical messenger is produced in a part of the brain called the hypothalamus. GH-RF allows the pituitary gland (the "master gland" involved in the growth process) to secrete growth hormone, the main hormone responsible for a person's growth.
GH is not only involved in growth phenomena, it also plays a role in the fine regulation of reproductive phenomena in both male and female mammals.
Bacteria. As I remember I’m sure it’s bacteria
Answer:
A carbon atom can form up to four covalent bonds as one carbon atom has four valence electrons (in outermost shell). It is a fact that the number of valence electrons in a atom determines the number of covalent bonds it will form. Thus, each electron in carbon atom is used to form four covalent bonds with various four atoms.
Explanation:
A bond between a carbon and hydrogen atom is a non-polar covalent bond. The non-polar covalent bond are the bonds between two atoms which share equal number of electron(s) with each other. Example: as in case of methane, where one carbon atom shares its 4 outer valence electrons with four hydrogens by sharing equal number of electron.
In contrast, polar covalant bond are the bonds between two atoms which share unequal number of electron(s) with each other. Thus these bonds are partially ionic.
