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3 years ago

ENERGY PYRAMIDS

Biology

1 answer:

Natasha2012 [34]3 years ago

5 0

Answer:

Energy is lost at several levels from the body of an organism. Two of the phenomenons through which energy is lost are

Conduction:

When a body is in contact with another body, energy is lost in the form of heat. For example, if we sleep on a cold floor, energy from our body would be lost to the floor in the form of heat,

Decomposition:

Energy is lost when cells in a body die and energy is required for decomposition also.

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A small number of birds arrive on an island from a neighboring larger island. About twice a year, one or two more birds from the

lina2011 [118]

Answer:

Hello. None of the answer options is correct, as the new arrivals delay adaptation to new food plants.

Explanation:

The arrival of new birds increases competition for food. This makes the birds that have just arrived have some difficulty in accessing food, as they will have to compete with the birds that are already on the island. This makes the novice birds look for food plants they already know, which delays their adaptation to feeding new plants they do not know.

4 0

3 years ago

The process by which cells specialize is called differentiation. <br> a. True <br> b. False

Gnoma [55]

A- true. <span>

Cell differentiation is how generic embryonic cells become specialized cells.

Hope this helps!
Can u plz mark me as brainliest? I really need it!</span>

3 0

3 years ago

A sample compound with a molar mass of 34.00g/mol is found to consist of 0.44g H and 6.92g O. Calculate both empirical and molec

ipn [44]

Answer:

Empirical: OH

Molecular: $H_{2} O_{2}$

Explanation:

First of all, we are going to use the formula: mass = no. moles x Molar Mass And rearrange it to find No. moles: No. moles = mass/Molar Mass

Let's start with Hydrogen:

The given mass is 0.44g, and hydrogen's molar mass is 1.01, therefore the number of moles is: 0.44/1.01 = 0.4356

Now we do the same for Oxygen:

Given mass = 6.92, Molar mass of Oxygen = 16.00, No. Moles = 6.92/16.00 = 0.4325

Now we identify the smaller one (Oxygen as 0.4325 < 0.4356) and we divide both values by that number:

0.4325/0.4325 = 1

0.4356/0.4325 = 1.01

We round both to the nearest 0.2 or 0.25 (depending on what you're taught), and we get: 1 and 1.

This means that the empirical formula has one of each: OH

Now to find the molecular formula we find the relative mass of OH and divide the given mass by that:

M(OH) = 16.00+1.01 = 17.01

34.00/17.01 = 2

We now multiply both by this number to get:

$H_{2} O_{2}$

Hope this helped!

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3 years ago

Which best defines a diploid cell during meiosis

Gwar [14]

Haploid is when a cell has a complete set of chromosomes while a diploid is when it has half.

6 0

4 years ago

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TII

AnnZ [28]

Answer:

radiation i believe

Explanation:

yuhhhhhhhhhh

4 0

3 years ago

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