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koban [17]
3 years ago
15

The scientific theory that describes the beginning of the Universe is called the

Biology
2 answers:
I am Lyosha [343]3 years ago
8 0
Big Bang Theory which says the universe came about from the explosion of gases that existed alone 

Maurinko [17]3 years ago
6 0

Answer:

Big Bang Theory

Explanation:

The big bang theory is the theory currently accepted to explain the beginning of the universe. It was developed in 1948 by scientist George Gamow and priest and astronomer Georges Lemaître.

According to this theory, the universe we know emerged as a result of a powerful explosion that released a great energy capable of creating space-time.

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The ant and the acacia have a
Sidana [21]

Answer:

Mutualistic means that both organisms benefit.

Explanation:

The acacia tree provides shelter and food to the ants, while the ants protect the tree from other animals.

3 0
3 years ago
Which of the following is an example of an exothermic process?
erastovalidia [21]

The answer to the question above is letter a. melting.

>Exothermic is the giving off heat energy the  transfer of energy to the surroundings.

>In exothermic reaction, the energy is usually transferred as heat energy

<span>> Other example of exothermic is combustion</span>

7 0
3 years ago
Please help with this question:)
leonid [27]
I would say it is a hydrogen bond
8 0
3 years ago
Read 2 more answers
Which of the following statements best describes the role of hormones in the body? Hormones send chemical signals throughout the
il63 [147K]

Answer:

Hormone production and release are primarily controlled by negative feedback. In negative feedback systems, a stimulus elicits the release of a substance; once the substance reaches a certain level, it sends a signal that stops further release of the substance. In this way, the concentration of hormones in blood is maintained within a narrow range. For example, the anterior pituitary signals the thyroid to release thyroid hormones. Increasing levels of these hormones in the blood then give feedback to the hypothalamus and anterior pituitary to inhibit further signaling to the thyroid gland, as illustrated in Figure 18.14. There are three mechanisms by which endocrine glands are stimulated to synthesize and release hormones: humoral stimuli, hormonal stimuli, and neural stimuli.

Explanation:

Hyperthyroidism is a condition in which the thyroid gland is overactive. Hypothyroidism is a condition in which the thyroid gland is underactive. Which of the conditions are the following two patients most likely to have?

Patient A has symptoms including weight gain, cold sensitivity, low heart rate and fatigue.

Patient B has symptoms including weight loss, profuse sweating, increased heart rate and difficulty sleeping.Humoral Stimuli

The term “humoral” is derived from the term “humor,” which refers to bodily fluids such as blood. A humoral stimulus refers to the control of hormone release in response to changes in extracellular fluids such as blood or the ion concentration in the blood. For example, a rise in blood glucose levels triggers the pancreatic release of insulin. Insulin causes blood glucose levels to drop, which signals the pancreas to stop producing insulin in a negative feedback loop.

Hormonal stimuli refers to the release of a hormone in response to another hormone. A number of endocrine glands release hormones when stimulated by hormones released by other endocrine glands. For example, the hypothalamus produces hormones that stimulate the anterior portion of the pituitary gland. The anterior pituitary in turn releases hormones that regulate hormone production by other endocrine glands. The anterior pituitary releases the thyroid-stimulating hormone, which then stimulates the thyroid gland to produce the hormones T3 and T4. As blood concentrations of T3 and T4 rise, they inhibit both the pituitary and the hypothalamus in a negative feedback loop.

3 0
3 years ago
Describe an example of the scientific method. Include any limitations this method has.
topjm [15]
Due to the need to have completely controlled experiments to test a hypothesis, science can not prove everything. For example, the scientific method cannot alone say that global warming is bad or harmful to the world, as it can only study the objective causes and consequences.
5 0
2 years ago
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