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olasank [31]
3 years ago
6

Select the correct answer from each drop-down menu.

Biology
1 answer:
Vikentia [17]3 years ago
4 0

Answer:

  1. Hemoglobin
  2. Blood

Explanation:

Since Anne is 19th century scientist, she would use conservative or classical methods of detecting blood traces on a glass at a crime scene because disovery of DNA was still not done. In 1853, Dr. Teichmann developed a test (also known as Teichmann test) that aim to crystallize haemoglobin when it is heated with glacial acetic acid. Since blood as haem group (hemin) and any surface that has traces of blood would react with glacial acetic acid and form crystals which can be then detected. This was one of the breakthrough discovery of  that time.

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How does carbon dioxide affect the ecosystem
FrozenT [24]

As a greenhouse gas that absorbs heat, CO2 raises the temperature of the atmosphere. We refer to this as global warming. The glaciers will melt more quickly as the world's temperature rises, raising sea levels and bringing on disaster. More power is consumed for air conditioning as the temperature rises, which further raises the air's CO2 level.

Since coal is the primary fuel utilized in the creation of power. This creates a vicious cycle.

3 0
2 years ago
Hello everyone! just need help with questions 5 and 6!:) thankyou!!
worty [1.4K]

Answer:

5.) While it appears in a balanced ecosystem that nothing is changing, there is indeed either subtle or gradual changes that constantly happens through natural succession.

6.) Predator-prey relationships achieve a state of balance:

a.) Prey- They are food for predatory animals and help them thrive with nutrients that they possess.

b.) Predator- They help reduce overpopulation for prey

Explanation:

I hope this helped! :)

4 0
3 years ago
Compare and contrast the characteristics of the three domains.
Llana [10]

three domains , archae- 1st appeared, prokaria- not closed by nucleus and eukaria closed by nucleus

6 0
3 years ago
Elephants are considered K-strategists because they give birth to only one calf at a time and most have five years in between ha
kicyunya [14]

Answer:

Type I curve

Explanation:

The K-strategist are species characterized by relatively stable populations that fluctuate at the carrying capacity of the habitat or niche in which organisms reside. Elephants are considered as K-strategists because they have a low population growth rate and relatively stable populations. There are three different types of survivorship curves. The Type I curve (also referred to as A curve) is characteristic of k-strategist organisms. Humans and elephants exhibit a Type I survivorship curve in which organisms tend to die when they become elderly. These species have a small number of offspring and provide parental care to ensure their survival. In a Type II survivorship curve, species produce many offspring and only some offspring survive (e.g., birds), while in Type III survivorship curve organisms produce many more offspring and most do not survive (i.e., r-strategists such as frogs or insects).

8 0
3 years ago
I'LL GIVE BRAINLIEST:
ch4aika [34]

Answer:

The grasshopper doesn't have to use it circulatory system to carry gases to and from the grasshopper cells because the air that is passed through the trachea system is already close enough to get to the cells.

Explanation:

"In the grasshopper, exchange of oxygen and carbon dioxide occurs in the tracheal system. Hemolymph plays no part in the process. There is not even an oxygen-carrying pigment in insect hemolymph." - www.biology-pages.info

(Here's some extra info as well)

8 0
2 years ago
Read 2 more answers
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