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PolarNik [594]
3 years ago
8

First system to classify blood types

Biology
2 answers:
Hunter-Best [27]3 years ago
7 0
ABO is the correct answer
Vera_Pavlovna [14]3 years ago
6 0

Answer: ABO blood group system

Explanation:

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mestny [16]

Answer: A.

Explanation:

The secondary growth of a plant happens in the vascular cambium. When the vascular cambium produces more tissues, it makes the stems thicker over time.

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3 years ago
What are the characteristics of a good experiment?
lina2011 [118]

Answer:

The characteristics of a good/safe experiment are:

  • Equipment is used according to its purpose
  • Workers are wearing protective clothing and goggles
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  • There is proper ventilation
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Hope this helps ya :D

3 0
3 years ago
Characteristics of living things​
lyudmila [28]

The characteristics of living things are as follows:

  1. Movement or locomotion
  2. Respiration
  3. Nutrition
  4. Irritability or sensitivity
  5. Growth
  6. Excretion
  7. Reproduction
  8. Death

<h3>WHAT ARE LIVING THINGS:</h3>
  • Living things are organisms that possess life in them and can perform certain functions unique to them.

  • These functions are the characteristics of living things. The following are the characteristics of living things:
  1. Respiration
  2. Nutrition
  3. Irritability or sensitivity
  4. Growth
  5. Excretion
  6. Reproduction
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Learn more about living things at: brainly.com/question/17074249

4 0
2 years ago
Read 2 more answers
How is enthalpy used to predict whether a reaction is endothermic or exothermic?
Radda [10]

<u>Answer:</u>

<em>329.48 KJ/mol heat is released by the combustion of 2 molof methane</em>

<u>Explanation:</u>

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)

\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]

                            =2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]

                            = -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]

                           = -787 KJ/mol+1116.48 KJ/mol

                                          =329.48 KJ/mol

<em>In this question, </em><em>the enthalpy of formation</em><em> has positive value and hence the </em><em>reaction is endothermic</em><em> in which the heat is released. </em>

3 0
3 years ago
If a female fruit fly heterozygous for red eyes crossed with a white eyed male what percent of there offsprings would have white
Kisachek [45]
There would be a 50 50 chance
8 0
3 years ago
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