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Vlad1618 [11]
3 years ago
12

O Excretory System 4. The allows us to breathe, digest food, and react to stimuli by regulating the functions of our organs. (10

Points) 0 Immune System O Nervous System O Excretory System O Integumentary System 5. (10 Points)​
Biology
1 answer:
Lostsunrise [7]3 years ago
5 0

Answer:

The Nervous System.

Explanation:

The nervous system's job is to help in receiving information about the environment around us and generate responses to that information (a.k.a homeostasis). The nervous system can be divided into regions that are responsible for sensation (sensory functions) and for the response (motor functions).

Hope this helps!

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1. True
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The protostome developmental sequence arose just once in evolutionary history, resulting in two main subgroups—Lophotrochozoa an
Lelechka [254]

Answer:

<h2>c. Division of these two groups occurred after the protostome developmental sequence appeared. </h2>

Explanation:

  • Protosomes are such types of organisms in which the mouth part developed first during embryonic development.
  • Those animals in which anus develop first are known as deuterostomes.
  •  This differentiation takes place during the embryonic development of the organisms.
  • Since lophotrochozoan and Ecdysozoa both are protostomes animals and categorized on the basis of molecular evidence.
  • Thus these two groups were formed after the appearance of the protostomes.

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3 years ago
Give an example and description of the word Cycadophyta.
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A cycadophyta is a biological dividsion, and within this,nthree are three families, and these are; Cycaclaceae, Strangeriaceae and Zamiceae. The plants of these are seed plants, which generally have characteristics, such as a stout, short and tough trunk made of wood, with a crown like span of evergreen leaves, with a cone shape protruding from the centre of the tree. Sorry, I wasnt able to attach an image, but if you google cycadophyta, this is what they look like. Sorry for the inconvenience, hope this helps
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Thomas drew a picture of a one-celled organism. He then labeled his drawing as shown in the illustration below.
zhannawk [14.2K]

Answer:DNA

Explanation:

3 0
3 years ago
While hiking, you must push aside thick branches that are near your face. One of them rips the skin on your arm and you begin to
matrenka [14]

Answer:

While hiking, you must push aside thick branches that are near your face. One of them rips the skin on your arm and you begin to bleed from the cut. Which of the following plays an important role in initially protecting you from infection?

The answer to the question is option D (barriers such as dead skin cells and mucus because they are part of the innate immune system)

Explanation:

Hiking which is a way to stay physically active can simply be explained as an engage in a leisure-like activity, to walk a long distance or for exercise.

Innate immunity is one of the two main immunity strategies found in vertebrates, is composed of physical, chemical and cellular defenses against pathogens,  such as skin, chemicals in the blood, and immune system cells that attack foreign cells in the body immediately or within hours of an antigen's appearance in the body.

The innate immune system relies on the recognition of particular types of molecules that are common to many pathogens but are absent in the host.

Innate immunity, is something already present in the body which is activated against a specific type of antigen, and the immunity remains throughout the life.

An example of Innate immunity, is the white blood cells fighting bacteria.

Innate Immunity action is usually rapid, and the first line of defense against non-self pathogens is the innate immune response.

Innate type of immunity is generally inherited from parents and passed to offspring.

The main purpose of the innate immune response is to immediately prevent the spread and movement of foreign pathogens throughout the body.

Therefore, during the first critical hours and days of exposure to a new pathogen, the body rely on the innate immune system to protect it from infection.

The skin and other epithelial surfaces, provide a physical barrier between the inside of the body and the outside world.

The mucus layer also contains substances that kill pathogens or inhibit their growth.

Microorganisms do occasionally breach the epithelial barricades. It is then the innate immune system that recognizes and destroy them, without harming the host.

3 0
3 years ago
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