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neonofarm [45]
2 years ago
15

A derived trait of land plants is the presence of small openings that allow gaseous exchange between the plant and its environme

nt. These structures are called:
A. cuticles
B. stomata.
C. thallus
D. mizoids
Biology
1 answer:
mel-nik [20]2 years ago
6 0

Answer:

B. stomata.  

Explanation:

Stomata are openings in the surface of the plant epidermis through which gases and water vapor pass. They are formed by two elongated cells whose shape is similar to bean grain or dumbbell depending on the species.  These cells are called guard cells, and in their midst there is a slit called the ostiole.

The stomata make the exchanges between the external and internal environment of the plant. They regulate the size of the opening, so it is possible to increase or decrease the rate of perspiration of the plant.

Stomata are usually located at the bottom of the leaf, but in aquatic plants such as the water lily they are at the top and still in vertical growing plants on both sides.

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Which of the following is a common health consequence of limited physical activities and no exercise?
Alexxandr [17]

Increased risk of Type 2 diabetes and heart disease is a common health consequence of lack of physical activities and Exercises.

<h3>Physical activities and Exercises.</h3>

Physical activities and Exercises refer to various body movements or activities that are carried out by individuals for good health and well-being.

Some of these activities or exercises including dancing, walking,cycling, jumping, playing and so on.

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5 0
2 years ago
Which part of an enzyme molecule binds to its associated substrate?
anzhelika [568]
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8 0
3 years ago
Which picture represents a cast?
Snowcat [4.5K]

Answer:

its number 1

Explanation:

because the fly is stuck in amber

and the snail shell is in mold and is filled up

and number 2 is not cast

5 0
3 years ago
Tropical rainforests have thin, acidic soils, yet they contain dense vegetation and high biodiversity. how can these tropical fo
Mashcka [7]
<span>A large complement of decomposers rapidly turns dead plant and animal matter into nutrients that are quickly taken up by plants. Also, some animals live on eating plants, other animals eat those that live on plants, and animals that live on eating other animals die to make nutrients that are eaten by plants; this also, is called an ecological food chain.</span>
6 0
3 years ago
Can someone do this quick?
kakasveta [241]

Answer: A.

Explanation:

Palisade mesophyll cells contain the most amount of chloroplasts with an average of 30–70 chloroplasts per cell so they will be number 2 in the graph.

Spongy mesophyll cells contain less chloroplasts than their palisade counterparts to enable them have a larger surface area for gas diffusion.

The guard cells have the least amount of chloroplasts on average and so will be number 1. on the graph.

8 0
3 years ago
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