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3 years ago

Scientists Galilel used the to observe the stars and planets

Biology

1 answer:

deff fn [24]3 years ago

8 0

Answer:

In 1609, using this early version of the telescope, Galileo became the first person to record observations of the sky made with the help of a telescope. He soon made his first astronomical discovery.

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Describe what a DNA profile is and how it’s used.

sleet_krkn [62]

DNA profile is a forensic technique in criminal investigations. It is used to identify the origin of a DNA sample at a crime scene (example: from blood or hair) to DNA samples taken from suspects.

7 0

3 years ago

A species of birds entered a nonnative habitat and is now considered an invasive species. What’s the most likely effect this spe

Lady bird [3.3K]

Answer:

The native species will more than likely be eradicated or they might learn to co-habitate.

Explanation:

The nonnative bird species will compete for resources with other species that share the same resource. Depending on the stronger animal or the bird that is more fit for that area to survive, depends on whether the native species will be effected or the nonnative species will be affected. If the invasive species has more tools to enhance their survival, then they will likely eradicate the native species. the same can be said for the Native species.

6 0

3 years ago

Read 2 more answers

A neuron that carries impulses away from the central nervous system is a:

nirvana33 [79]

The answer is sensory neurons

7 0

4 years ago

How are sexual reproduction and asexual reproduction different from each other

Elena-2011 [213]

Answer:

Sexual reproduction is the joining of gametes to form a different organism while Asexual reproduction is the duplication of the first organism to form an identical organism.

Explanation:

5 0

3 years ago

Which gland produces T3 and T4?

Leokris [45]

Answer:

1. The gland that produces T3 and T4 is the thyroid (first option).

2. True. The adrenal gland produces and allows the secretion of the hormone involved in the fight and flight response.

3.The symptom that is not correctly matched with the organ system is joint pain, which is related to the joint system, not the skeletal system.

4. False. Negative feedback loop inhibits the production and release of hormones.The symptom that is not correctly matched with the organ system is Joint pain - skeletal system

Explanation:

1. Thyroid gland is a small organ of no more than 30 grams found in the neck, in front of the trachea. This gland produces thyroglobulin, which when joined with iodine can synthesize triiodoythyronine (T3) or thyroxine (T4).

The main function of the thyroid gland is the regulation of organic metabolism, while it can also mediate the body's response to other hormones.

2. Adrenal gland is located in the upper pole of each kidney and is responsible for the secretion of several substances that help with the body's activity.

In the gland's marrow, a substance called adenaline is produced, with properties such as hormone and neurotransmitter, one of the main substances produced to deal with stress and the adaptation response called fight and flight.

The adrenaline produced in the adrenal medulla can strengthen muscles, increase heart rate and blood pressure, and increase the body's resistance to the presence of stressors or threats to physical integrity.

3. Joint pain is related to inflammation of the joint soft tissues, which belong to the joint system. Unlike joint pain, bone pain occurs as a result of injury to the periosteum -the thin membrane that covers the bones- which is related to the skeletal system.

Painful inflammation of the joints is called arthritis, and is one of the main causes of disability to perform normal body movements.

4. Feedback is a control mechanism of the endocrine system. Negative feedback loop occurs in response to a stimulus, resulting in the inhibition of mechanisms that promote the synthesis and release of substances.

An example of negative feedback is the sufficient production of thyroid hormones, which sends a signal to the hypothalamus, which in turn inhibits the production of TSH - thyroid stimulating hormone - at the level of the pituitary gland. If the pituitary does not release TSH, production of thyroid hormones ceases.

Learn more:

Thyroid feedback loop brainly.com/question/4967372

4 0

3 years ago