When was the term acid rain first used? 1960 1753 1980 1852

HELP PLEASE ASAP. Why do stems have bark? What does the phloem do?

lozanna [386]

Answer:In old stems the epidermal layer, cortex, and primary phloem become separated from the inner tissues by thicker formations of cork. Due to the thickening cork layer these cells die because they do not receive water and nutrients. This dead layer is the rough corky bark that forms around tree trunks and other stems.

Explanation: wikipedia.

3 0

3 years ago

Place the organisms in the correct locations in this food web.

Alexxandr [17]

Answer:

Explanation:

green plant beside mouse.......eagle by snake.......goat behind jackal............lion in front of jackal

8 0

3 years ago

List 3 factors that can speed up the rate of chemical reactions

zysi [14]

Answer:

Temperature
Greater Surface Area
Catalysts

Explanation:

Temperature

An increase in temperature typically increases the rate of reaction. An increase in temperature will raise the average kinetic energy of the reactant molecules. Therefore, a greater proportion of molecules will have the minimum energy necessary for an effective collision (Figure. 17.5 “Temperature and Reaction Rate”).

Greater Surface Area

The rate of a chemical reaction can be raised by increasing the surface area of a solid reactant. ... more particles are exposed to the other reactant. there are more collisions. the rate of reaction increases.

Catalysts

A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism.

Hope this help!!!

7 0

3 years ago

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What is a replicative genome? help plssss

EleoNora [17]

Answer: Genome is the haploid set of chromosomes in a gamete or microorganism, or in each cell of a multicellular organism. Replicative is relating to or involving the replication of genetic material or living organisms.

Explanation:

So Replicative Genoes are genomes that are able to replicate its own genetic material.

3 0

3 years ago

50 POINTS !!!!A credit union is a business that is owned by people who have something in common, offers you a place to keep your

Triss [41]

Answer:

true

Explanation:

Hope this helps

8 0

3 years ago

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