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3 years ago

What are the characteristics of supernovae?

2 answers:

5 0

Ans: As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.

Veseljchak [2.6K]3 years ago

4 0

As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.

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You open a urine sample for testing and immediately detect a fruity odor. Which test result do you expect to be elevated using a

Pani-rosa [81]

The test result that would be elevated due to the fruity odor is ketones.

<h3 /><h3>What is urinalysis?</h3>

Urinalysis is a chemical, physical and microscopical examination carried out on a urine sample. This can be used to detect a wide range of disorders such as:

urinary tract infections,

kidney disease and

diabetes.

The dipstick method of urinalysis uses a stick that is made up of chemicals which are capable of detecting the following through a colour change:

Ketones,
sugar,
proteins,
acidity, and
blood.

The presence of fruity odor in the urine sample signifies that there is excess ketone in the body due to ketoacidosis.

Learn more about urinalysis here:

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1 year ago

In this lab, you will be using black worms ( Lumbriculus variegatus) to investigate the effects of various chemicals on their pu

Leni [432]

Answer: All the above options are correct about the characteristics of Lumbriculus variegatus.

Explanation:

Lumbriculus variegatus also called the black worm belongs to the phylum Annelida and is used by biologists to illustrate:

-blood vessel pulsations,

-swimming reflex,

-peristaltic crawling behavior,

-giant nerve fiber action potentials.

These studies where carried out on them due to the characteristics they possess. These includes:

-its blood circulates in a closed circulatory system

-Freshwater worm found throughout North America and Europe

-Prefers the shallow habitats found at the edges of ponds, lakes, or marshes

-Feeds on decaying vegetation and microorganisms.

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3 years ago

The closest living relatives to orangutans are:

GalinKa [24]

Answer: great apes explanation:

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3 years ago

Rama de la biologia que estudia a la célula es

const2013 [10]

Answer:

Biología celular o citología: rama de la biología que se centra en el estudio de la estructura y función de las células. Biología del desarrollo: es la rama que analiza cómo es el desarrollo de los seres vivos desde que se conciben hasta que nacen.

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3 years ago

Your teacher assigns a STEM activity to the class. Each student must identify a current real-world issue that needs to be improv

vladimir2022 [97]

Answer: 4. Problem solver

Explanation: you're working to fix a known problem

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3 years ago