What information does a food web reveal that a food chain does not? A. A food web shows the actual number of joules of energy that is transferred from one trophic level to another but a food chain never does. B. A food web shows that most organisms consume and are consumed by more than one organism. C. A food web only shows a single pathway of consumption through the ecosystem. D. A food web consists of biomass pyramids but a food chain does not.

Answers

Answer 1

Answer: B because food web show when grass is consumed cows and horses both eat same thing with other food sources

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What is a key element found in CO2 and glucose?

This nonmetal is in the same group as lead.

What is the element

Answers

The element which is a non-metal and present in the same group as lead is carbon as they both have four electrons in their valence shell.

What is an element?

An element is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.

Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.

The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.

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Lead (/lɛd/) is a chemical element in the carbon group with symbol Pb (from Latin: plumbum) and atomic number 82.

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Which waves have the longest wavelength and lowest energy on the electromagnetic spectrum?a.) X-Rays
b.) infrared
c.) radio
d.) gamma rays

Answers

Which waves have the longest wavelength and lowest energy on the electromagnetic spectrum?
a.) X-Rays b.) infrared c.) radio d.) gamma rays

Answer:

The answer is radio waves

Explanation:

Use the graph to identify the number, letter, or word that completes each statement.• The solubility of Solute D ___ as temperature increases.
• The solubility of Solute ___ increases the most as temperature increases.
• The solubility of Solutes C and D is the same at __°C.
• As the temperature increases from 0 to 100, the solubility only changes by about __ grams for Solute B.

Answers

Answer:

Decreases

Explanation:

Answer:

Decreases

Explanation:

when heated, the temperature of a water sample increased from 15 degrees celsius to 39 degrees celsius. It absorbed 4300 joules of heat. What is the mass, in grams, of the sample?

Answers

Mass of water: 43 g

Explanation:

When a substance is heated, the temperature of the susbtance increases according to the equation:

$Q=mC\Delta T$

where

Q is the amount of heat supplied to the substance

m is the mass of the substance

C is the specific heat capacity of the substance

$\Delta T$ is the increase in temperature

In this problem, we have:

Q = 4300 J is the heat absorbed by the water

C = 4200 J/gC is the specific heat capacity of water

$\Delta T = 39-15 = 24^(\circ)C$ is the increase in temperature

By re-arranging the equation, we can find the mass:

$m=(Q)/(C \Delta T)=(4300)/((4200)(24))=0.043 kg = 43 g$

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Final answer:

The mass of the water sample can be calculated using the formula for heat absorption: Q = mcΔT.

Given that the water sample absorbed 4300 joules of heat and the temperature increased from 15°C to 39°C, the mass of the water sample is approximately 43.03 grams.

Explanation:

This physics problem can be solved by using the formula for heat absorption:

Q = mcΔT,

where Q is the heat absorbed (in joules), m is mass (in grams), ΔT is the change in temperature (in °C) and c is the specific heat capacity. For water, c is 4.186 joules/gram°C.

The change in temperature (ΔT) of the water sample is the final temperature (39°C) minus the initial temperature (15°C), which equals 24°C.

Using the given value for Q (4300 joules), we rearrange the formula to calculate m (mass):

m = Q / (cΔT) = 4300 / (4.186*24) ≈ 43.03 grams.

Thus, the mass of the water sample is approximately 43.03 grams.