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viva [34]
3 years ago
13

I need help with this

Biology
1 answer:
poizon [28]3 years ago
4 0

Answer:

I know the answer

Explanation:

Yes

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Endocrine gland(s) Group of answer choices secrete substances that do not alter the metabolism of their target cells, but have e
lidiya [134]

Answer:

The correct answer is: Release their secretions directly into the blood.

Explanation:

Glands are organs that <u>regulate bodily functions by producing and releasing certain substances</u>. Endocrine glands are a type of gland that specifically releases its product into the bloodstream.

Endocrine glands' products are called hormones and they travel through the blood vessels in order to reach their destination (the organ where they are supposed to act),

An example of an endocrine gland is the pancreas. The pancreas produces insulin and glucagon, two different hormones that act in different organs to regulate glucose levels.

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3 years ago
(PLEASE HELP) Describe the difference between mechanical and electromagnetic waves. Give an example of each kind of wave related
Stolb23 [73]
One difference between mechanical and electromagnetic waves is that mechanical waves need a medium to pass through (solid, liquid, gas). EM waves can travel through matter or though a vacuum. In regards to telecommunications, EM waves can be radio waves, these are used in TV's, phones, computers, radios. Mechanical waves somewhat relate to this since radios produce sound;so an EM wave would turn into a mechanical vibration inside a speaker then sound would be produced.  
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3 years ago
What makes fingerprints individual? How do scientists match a fingerprint to a specific person?
vichka [17]

The skin on the palmar surface of the hands and feet forms ridges, so-called papillary ridges, in patterns that are unique to each individual and which do not change over time. Even identical twins (who share their DNA) do not have identical fingerprints.

3 0
3 years ago
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Describe what you observe in<br> the petri dish<br> What is Petri dish
Mrac [35]
A Petri dish (alternatively known as a Petri plate or cell-culture dish) is a shallow transparent lidded dish that biologists use to culture cells, such as bacteria, fungi or small mosses. The container is named after its inventor, German bacteriologist Julius Richard Petri. It is the most common type of culture plate.
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3 years ago
design an experiment to test substances X, Y, and Z to determine which one is a catalyst for the reaction.
Fynjy0 [20]

Answer:

A+B C. Only one of the unknown substances is a catalyst, and the others are nonreactive with A, B, or C. When 10 mL of A is added to 10 mL of B the reaction takes twenty seconds. Bubbles form when the product C is created. The student prepares three test tubes, each containing both reactants A and B. She adds unknowns X, Y, and Z to test tubes 1, 2, and 3, respectively.

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