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jek_recluse [69]
3 years ago
6

What is the bodies first line of defense formed by

Biology
2 answers:
tensa zangetsu [6.8K]3 years ago
8 0

Explanation:

The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.

ASHA 777 [7]3 years ago
5 0

Answer: 1st line of defense- skin, tears, mucus, cilia, and stomach acid

Explanation:

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which type of amino acid would you expect to find in large numbers in a protein found in a deep-sea hydrothermal vent (a very ho
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The type of amino acid that is expected to be found in large numbers in a protein found in a deep-sea hydrothermal vent is called Cysteines.

<h3>What is hydrothermal vent?</h3>

The hydrothermal vent is defined as an outlet that is located at the base of the sea which allows the release of underground heated water.

Cysteines is the type of amino acid that doesn't denature when subjected to high temperature.

Therefore the type of amino acid that is expected to be found in large numbers in a protein found in a deep-sea hydrothermal vent is called Cysteines

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Which statements are true? Check all that apply.
Rama09 [41]

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3 5 Are correct

Explanation:

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Fofino [41]

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A hypothesis that is not possible, or has less strength, to explain how life arose on Earth is that it originated from cells that were delivered by meteorites from outer space (option D).

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Although it is a hypothesis that has scientific foundations to be considered, the origin of life coming from organic molecules or cells from space -called Panspermia- has not been completely proven because:

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These arguments make the hypothesis of the arrival of the first cells from outer space the least accepted today.

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3 0
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The allowance for uncollectible accounts is a contra account to
Monica [59]

<u>The allowance for </u><u>uncollectible accounts</u> refers to a company that accepts the risk of giving credits to those who may not pay it back. These debts are written off as uncollectable and are a contra asset on the balance reports.

Uncollectable accounts are also often referred to as doubtful accounts. This implies that the company that is giving the credit accepts the possibility that this entity may not return the money. This results in a loss for the company as is recorded as a contra asset on the balance sheets for the company. Some ways for companies to control this loss are:

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A contra asset or contra account is an account on a companies balance sheet that <u>decreases the balance of certain assets</u>. Contra derives from Latin and means against. Meaning this is an account that goes <u>against the positive balance of the company, </u>it subtracts from the companies earnings.

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Identify the area on the image where the force of attraction is the strongest.
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