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ira [324]
3 years ago
9

Adaptations are important for the survival of both animals and plants. A plant such as the cactus has many adaptations that help

it survive in its environment. A cactus' roots are long, but close to the surface of the ground, and they cover a large area.
What is the possible advantage that this root system offers the cactus?
A.
It makes the cactus look pretty.
B.
It doesn't help the cactus at all.
C.
It makes getting water easier and quicker for the cactus.
D.
It makes getting water harder and slower for the cactus.
Biology
2 answers:
posledela3 years ago
6 0

I think c (it makes getting water easier and and quicker for the cactus

m_a_m_a [10]3 years ago
6 0

Answer:

C. It makes getting water easier and quicker for the cactus.

Explanation:

Cacti have roots that are perfectly adapted to the dry and hot climate of a desert. Some of them are very long to reach the water underground, providing them enough water. Some have roots that are very extensive and shallow, this is because they have a different strategy, they take their water mostly from brief showers, and their roots allow them to maximize the amount of water they can get.  A corky layer on the roots also helps to prevent water loss.

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Umnica [9.8K]

Answer:

An autotroph is a cell that is capable of producing its own energy using photosynthesis or, less commonly, chemosynthesis.

A heterotroph is a cell that must consume its energy from external sources, for instance, hunting for prey or eating autotrophs.

Have a nice day!

3 0
2 years ago
Write a paragraph about competition. Must include 5 sentences at least. Include one sentence about the two animals or plants tha
mafiozo [28]

Answer:

I'm not writing your paragraph for you, but I'll give you some help on it.

Explanation:

2 animals that will compete are ants

they are constantly fighting for new territory

What happens, is that when the attackers come, the scouts for the defenders spray something (I forget what) into the air. This alerts the more heavily armed troops nearby. If the defenders win, the attacks are driven back to their colony. If the attackers win, the ants in the defending colony are either overrun and killed, or they run. If the attackers win, they find all the larvae in the nest and either kill them to stop the line together, or in some cases, eat them.

Hope this helps.

3 0
3 years ago
In what ways are cellulose and starch similar to each other and in what ways are they different? Be specific in your comparison,
Tom [10]
By starch, I'm assuming you mean glycogen, or animal starch.
Similarities:
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Both are storehouses of energy.

Differences:
Glycogen is made in animal cells and is the only form of starch animals can digest (unless they have certain microbes in their intestinal tracts to break down cellulose, which all herbivores need).
Cellulose is made in plant cells.

The bonds are a bit different; the molecules are isomers. Glycogen bonds with what is called an alpha 1,4 bond, meaning that the first carbon of one glucose molecule is bonded to the 4th carbon of the next glucose molecule, but in a way that puts the bonds in a shape that falls below the plane of the molecule, and allows branching.

Cellulose bonds with beta 1,4 bonds. The first and fourth carbons of adjoining glucose molecules are still connected, but the shape of the bond falls above the plane of the molecule and does not branch.

Since enzymes are specific to their substrates, the enzymes shaped to fit glycogen bonds do not fit on cellulose bonds, which is why animals cannot digest cellulose on their own. In herbivores, there are microbes in their digestive tracts which can produce enzymes to break these bonds so the glucose can be used. In carnivores and omnivores like humans, there is no enzyme to break down cellulose so it becomes 'roughage' in our diets. It passes through the digestive tract without being broken down.
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3 years ago
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scoundrel [369]

Answer:

The answer is double helix.

Explanation:

In its natural state, each DNA molecule is actually composed of two single strands held together along their length with hydrogen bonds between the bases. Watson and Crick proposed that the DNA is made up of two strands that are twisted around each other to form a right-handed helix, called a double helix.

Hope this helps!! ;)

8 0
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