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Explanation

Carrying capacity refers to the maximum number of individuals of a species that an environment can support over the long term without degrading the environment.

Explanation

Parasitism is a type of relationship where one organism (the parasite) lives on or inside another organism (the host)

And benefits at the expense of the host, who is harmed by the interaction. 

Explanation

A group of the same species living together in a particular area forms a population

Explanation

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Explanation

Parathyroid hormone (PTH) is produced and secreted by the parathyroid glands, which are located behind the thyroid gland in the neck.

PTH regulates blood calcium levels by stimulating"

• bone cells (osteoclasts) to release calcium from bones
• increasing calcium absorption in the intestines
• reducing calcium excretion in the kidneys. 
  

Explanation

The estrous cycle is the reproductive cycle observed in many non-human primates.

It involves periods of sexual receptivity (estrus) during which the female is fertile and can conceive

Explanation

Hemophilia is an X-linked recessive genetic disorder that affects blood clotting

Since it is X-linked, it is more commonly expressed in males

because they have only one X chromosome, while females have two

Explanation

Neural cells originate from the ectoderm layer of the embryo during early development.

As these cells differentiate, they give rise to various types of cells within the nervous system, including neurons (nerve cells) and glial cells (supporting cells). 

Explanation

Scorpions and spiders both belong to the class Arachnida.

This class includes arachnids, which are characterized by having eight legs and lacking antennae.

Explanation

Gap junctions are specialized structures that allow direct communication between adjacent cells.

They are formed by connexin proteins that create channels enabling the exchange of ions, metabolites, and other small molecules between cells.