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3 years ago

What natural disaster buried an entire town in ash?

Biology

2 answers:

djyliett [7]3 years ago

6 0

A. the volcanic eruptions of Mt. Vesuvius

Nata [24]3 years ago

3 0

<span>A. the volcanic eruptions of Mt. Vesuvius

I did not have to so any research on this. It is easy to tell because volcanoes are the only natural disasters that you listed that emit ash.</span>

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1. All ____________ organisms are composed of ______ or _______ cells.

Diano4ka-milaya [45]

Living one, or more.

8 0

3 years ago

Read 2 more answers

1. The diagram below represents a cell and several

Ray Of Light [21]

Explanation:

(3) active transport

The molecules would be moving against their concentration gradient from a region of low concentration to a region of high concentration.

While cells facilitate the transport of molecules via movement across the cell membrane, there many different mechanisms. These include passive diffusion, facilitated diffusion, and passive transport. However some very large molecules require specialized type of active transport, which requires energy in the form of ATP, in order to move substances across the membrane against their concentration gradient.

Active transport is a mediated process that requires an energy input and the use of specialized membrane proteins to move against the concentration gradient. These proteins require energy in the form of adenosine triphosphate or ATP in order to facilitate necessary conformational changes to the large protein molecules to alter the spatial location of the molecule. For instance, with Na+, K+ pumps in cell membranes.

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

#LearnWithBrainly

8 0

3 years ago

1. Introduction:

inna [77]

Answer:

1. Introduction

a. The<em> Tiktaalik </em>is a fossil that<em> </em>existed about 12 million years before the first tetrapods.

b. The items homeostatic mechanisms show are continuity and change.

2. Continuity

a. Our Excretory system is the system responsible for the discharging of waste products from the body.

Explanation:

1 a. Tiktaalik fossil (<em>Tiktaalik roseae</em>), also known as the "fishapod," is a 375 million year old fish fossil discovered in 2004 in the Canadian Arctic. The fossil displays a mixture of fish and amphibian traits (i.e the pioneer tetrapods). Those tetrapod features in the <em>Tiktaalik</em> marks the earliest appearance of these features in fossil record.

Importance: The discovery of the <em>Tiktaalik</em> fossil explains a crucial point in the history of life on Earth: i.e it sheds light on when the very first fish ventured out of the water onto land.

b. Continuity in homeostasis implies common ancestry or homology. For example the excretory system in flatworms, earthworms and vertebrates basically serves the same function, and has remained unchanged (save for a few tweaks), over the last few million years.

Change implies changes in the environment which causes changes in homeostatic mechanisms. For example the transition of aquatic animals from water to land which necessitates changes in their respiratory mechanisms.

2. Continuity

a. The excretory system is the system of an organism's body that is responsible for the function of excretion, the process of eliminating bodily wastes produced by homeostasis.

The mechanisms of homeostasis are body temperature, body fluid composition, blood sugar, gas concentrations, and blood pressure.

The organs that are involved in this process of waste elimination are the sweat glands, the liver, the lungs and the kidneys.

5 0

3 years ago

What is the process that human

Eddi Din [679]

Answer:

$\huge\boxed{\sf Option \ C}$

Explanation:

Cellular respiration is the process in which carbohydrates (Glucose) are broken down into carbon dioxide and water in the presence of oxygen and a lot of energy is released which is further used for ATP synthesis and ATP is released!

$\rule[225]{225}{2}$

Hope this helped!

<h3>~AH1807</h3><h3>Peace!</h3>

6 0

2 years ago

Which macromolecule is represented by fat on food labels?

Andrei [34K]

i believe it would be fat, protein, and carbohydrates but i might be wrong.

4 0

3 years ago