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viktelen [127]
3 years ago
10

Please Help!!! Explain how the Periodic Table of elements is organized. What are the patterns? Trends?

Biology
1 answer:
emmasim [6.3K]3 years ago
5 0

Answer:

They are the alkali metals, alkaline earth metals, transition metals, other metals, metalloids, non-metals, halogens, noble gases and rare earth elements.

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When individuals migrate, alleles can be transfered from one population to another population. This commonly referred to as
loris [4]

Answer:

Gene flow.

Explanation:

When individuals migrate, alleles can be transferred from one population to another population which is known as gene flow. Gene flow is also called gene migration, the introduction of genetic material through interbreeding from one population of organisms to another which changes the composition of the gene pool of the migrated population of organisms. This gene flow creates a new species that is different from previous population of organisms

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2 years ago
What is the first thing that can cause a change in allele frequency?
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Answer: <u><em> Microevolution is defined as a change in allele frequencies in a population over time. Three mechanisms can cause allele frequencies to change: natural selection, genetic drift (chance events that alter allele frequencies), and gene flow (the transfer of alleles between populations).</em></u>

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8 0
2 years ago
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Removing which of the following glands would most likely have the most wide- reaching effect on bodily functions of an adult hum
mart [117]

Answer:

D) anterior pituitary gland

Explanation:

The anterior pituitary gland is the front portion of the pituitary. It is a small gland in the head called the master gland. Hormones which are secreted by the anterior pituitary influence growth, sexual development, skin pigmentation, thyroid function, and adrenocortical function.

The Anterior Lobe of the pituitary plays the 'master' role of the human body through secretion of six major hormones that affect most of the body. This includes the other Endocrine glands.  

6 0
3 years ago
What is required for the production of anterior pituitary gland hormones?
Lapatulllka [165]

Answer:

The correct option is c) hormonal stimuli

Explanation:

The pituitary gland, located in the anterior brain, under the hypothalamus, is formed by two lobes of very different origin. The anterior lobe or adenohypophysis, evolves as an evagination in the upper part of the mouth, from which it separates and grows towards the brain; the posterior lobe or neurohypophysis, is formed from the hypothalamus and joins the anterior lobe. The hypothalamus decides that hormones should release the pituitary by sending hormonal (hormonal stimuli) or electrical messages.

The secretion of hormones from the anterior lobe of the pituitary gland is regulated by hypothalamic stimulation factors, transported through a local blood network, the pituitary portal system. In response to hormonal stimuli of the hypothalamus, the anterior pituitary gland secretes growth hormones, the thyroid stimulating hormone (which affect the secretion of hormones from the adrenal cortex and thyroid gland respectively), the corticotropic hormone stimulates the secretion of hormones from the adrenal cortex: cortisol, which influences blood glucose levels, and aldosterone, which increases sodium retention in the kidneys, among others.

4 0
3 years ago
What are some examples of third-level consumers
Ghella [55]

Answer:

Fox, whale, lion and eagle.

Explanation:

They only eat meat

5 0
3 years ago
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