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True [87]
3 years ago
10

What is the sa node of the heart

Biology
1 answer:
olasank [31]3 years ago
5 0

Its a cluster of cells that are situated in the upper part of the wall of the right atrium.

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Ecotourism can provide an incentive for local people to preserve the environment in order to attract more visitors, but sometime
Vlada [557]

Answer: The next steps in their plan should be to (Investigate the ecological impacts and gather evidence on which to base their decisions). The correct option is A.

Explanation:

ECOTOURISM is defined as the visitation of individuals (tourist) to natural areas that conserve the environment and sustains the well-being of the local people. It has to do with the interaction of the biotic components of the natural environment by tourists. This has the advantage of providing an incentive for the local inhabitants but can cause a long term negative environmental impact of not properly planned.

Conservation of these natural resources improves the quality of lives. It enables the inhabitants to live in a clean and healthy environment (eco-friendly). To set up a tourism center, certain rules and regulations needs to be met in order to avoid endangering both the biotic and abiotic components of the ecosystem. Therefore these local groups should investigate the ecological impacts and gather evidence on which to base their decisions. This would help conclude if a particular selected environment is conducive.

7 0
3 years ago
Which of the following best defines homeostasis?
ELEN [110]
Homeostasis is maintaining stable internal conditions.
4 0
3 years ago
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The first cells that evolved were probably..
weqwewe [10]
The first cells were probably photosynthetic
3 0
3 years ago
Give some examples of biodiversity you find in your ecosystem.
artcher [175]

Most people recognize biodiversity by species—a group of individual living organisms that can interbreed. Examples of species include blue whales, white-tailed deer, white pine trees, sunflowers, and microscopic bacteria that can't even be seen by the naked eye.

8 0
3 years ago
Which of the indicated structures contains glands which secrete an alkaline mucus that helps neutralize the acidic chyme?
Artist 52 [7]

Duodenum is indicated structures contains the glands which secrete an alkaline mucus that helps to neutralize the acidic chyme

The duodenum is  first part of the small intestine. The main role of the duodenum is to complete the first phase of the digestion. In this section of the intestine, the food from the stomach is mixed with enzymes from the pancreas and bile from gallbladder.

It may be subdivided into four sections: the superior part, is descending part, is horizontal part and is ascending part. The superior part (first part, D1) lies in intraperitoneally and is also enlarged proximally (duodenal bulb

To know more about Duodenum visit:

brainly.com/question/8098134

#SPJ4

8 0
2 years ago
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