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3 years ago

Which procedure could a student use to examine an intensive property of a rectangular block of wood?

1 answer:

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Have six months of this week I have a really busy busy time and I’m not gonna I’m going back home I have a really busy busy time and I’m not going back home to work I have to work on a week or so then I will be back at my appointment and I’ll be there at six

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A protist is an organism with eukaryotic cells that is not a(n) ___________, ______________, or ____________. animal fungus host

Troyanec [42]

Plants , Animals , & Fungi . Hope this helps you !

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3 years ago

Observe: Click Next. What happens in the cytoplasm?

WARRIOR [948]

Answer:

The cytoplasm is a jelly like substance that supports and suspends organelles and molecules inside the cell. It also helps move and dissolve materials throughout the cell including waste molecules, proteins, and hormones.

I hope this helps! I tried to keep it short and simple. :)

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3 years ago

Community ecologists study the factors that determine the abundance of different species. The Abundance of three algae species (

Tema [17]

Answer:

Explanation:

Given that:

The abundance of three algal species in Lake A is now represented by the vectors:

[97, 84, 43] and [100, 80, 50]

Now if we look at Lake A, the change occurring in the vector of algae species can be determined as:

a = [100 -97, 80 - 84. 50 - 43]

a = [3, -4, 7]

Thus, the magnitude of that change is:

$|a| = \sqrt{(3)^2 +(-4)^2+(7)^2}$

$|a| = \sqrt{9+16+49}$

$|a| = \sqrt{74}$

$|a| =8.6 \ mg/mL$

The abundance of three algal species in Lake B is now represented by the vectors:

[25, 59, 22] and [20, 63, 15]

At Lake B, the change occurring in the vector of algae species can be determined as:

b = [20 -23, 63 - 59. 15 - 22]

b = [-3, -4, -7]

Thus, the magnitude of that change is:

$|b| = \sqrt{(-3)^2 +(4)^2+(-7)^2}$

$|b| = \sqrt{9+16+49}$

$|b| = \sqrt{74}$

$|b| =8.6 \ mg/mL$

Hence, for both Lake A and B, the magnitude of change is the same.

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2 years ago

Because it is difficult to excrete iron once it is in the body, iron balance is maintained primarily through absorption. The iro

Rzqust [24]

<h2>The given statement is true</h2>

Explanation:

Iron absorption occurs in the duodenum and upper jejunum of small intestine

At physiological pH ferrous iron is rapidly oxidized to the insoluble ferric form
Gastric acid lowers the pH in the duodenum which enhances the solubility and uptake of ferric iron
Once iron gets inside the enterocyte it can be stored as ferritin;Ferritin is a hollow spherical protein which helps in storage and regulation of iron levels within the body
Ferritin molecule have ferroxidase activity which helps in the mobility of Fe2+ out of the enterocyte by ferroportin
Transferrin is the major iron transport protein which transports iron through blood
Fe3+ binds to transferrin so Fe2+ transported through ferroportin must be oxidized to Fe3+
Fe2+ needs to be oxidized first so that it can be transported through ferroportin
Once iron gets inside the cell it can be used for various cellular processes

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3 years ago

Who is Bill Nye the science guy?

ser-zykov [4K]

Bill Nye hosted his own show called "Bill Nye the science guy" He was born on November 27, 1955, in Washington DC. He was a science communicator, television presenter, and mechanical engineer.

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3 years ago

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