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spin [16.1K]
3 years ago
14

How does the immune system defend your body?

Biology
1 answer:
slavikrds [6]3 years ago
7 0

Answer:The immune system protects your child's body from outside invaders, such as bacteria, viruses, fungi, and toxins (chemicals produced by microbes). It is made up of different organs, cells, and proteins that work together.

Read more on Brainly.com - brainly.com/question/16566272#readmore

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What is a controlled variable in an experiment?
Alik [6]

Answer:

A factor that is purposely left the same.

Explanation:

A controlled variable should not be changed throughout an experiment or else it will affect the outcome of each individual trial.

5 0
3 years ago
Read 2 more answers
During capillary exchange , what substance is not sent out to the tissue
Anna [14]

Answer:

During capillary exchange , red blood cells are the substance that is not sent out to the tissue.

Explanation:

Capillaries have thin walled cell which can only exchange glucose which is a monosaccharide, water molecule, carbondioxide and oxygen gas. These substances are exchanged because they are small in size while red blood cells are not exchanged due to large in size.

8 0
3 years ago
Identify which two of Koch's postulates would most likely not be fulfilled when trying to link a human virus to a particular dis
hammer [34]

Answer:

 A) & B)

Explanation:

A) There are certain viruses that are present in both healthy and disease people.

Example: Polio virus is found in many human but it causes disesease in only 1% of human.

B) Viruses require host machinery for replication so they may not replicate in pure culture.

The postulate C is also violated, the virus may not produce disease in non-human experimental host because of inappropriate animal or vaccinated animal etc. Others exception includes, the same disease may be caused by various organisms and different organisms can also cause the same disease.

3 0
3 years ago
Column A: Label the organism as a producer, an herbivore, a carnivore, a scavenger, or a decomposer. Column B: Find an image of
Effectus [21]

<u>Answer</u>: A food web is a graphical representation of interconnected food chains.

A desert food web will have as producers the cacti, annual flowers and sagebrush. Some of the primary consumers of these food web are the ants, lizards and pronghorn.

Secondary consumers are the scorpions, snakes and wolves. The haws represent tertiary consumers and in some instances they may even eat wolves, especially unprotected cubs.

The energy flows through the food web from inorganic components such as the sun, nutrients, water into the producers. Then primary consumers eat the producers and are in turn eaten by the secondary consumers. The tertiary consumers will feed on both primary and secondary consumers.

<u>Notes</u>:

Please find attached all the necessary files with the exception of the desert flowers (due to maximum numbers of attached files restriction). These images are not copywrighted and thus free to use.

I have created the required table as an Excell document in case you need to modify it. I did not add the images for the species in the Excell table.

I have also created a more exensive food web (described in the Answer section) for your desert habitat.

As I had some difficulties in understanding the last part of your question, please let me know in a comment if you require additional modifications. I have saved the foodweb PSD file as well as he Excell file.

7 0
3 years ago
Difference between gram positive and negative bacteria
olya-2409 [2.1K]

The difference between gram positive and gram negative is the stuctural difference in the cell walls

7 0
3 years ago
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