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Gnoma [55]
3 years ago
9

PLZ HELPPPPPPP!!!!!!!

Biology
1 answer:
LenKa [72]3 years ago
4 0

Answer:

so the answer is c

Explanation:

A staircase is an example of the inclined plane simple machine. A spiral staircase, however, is categorized as a screw.

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The iron-containing protein found in red blood cells isO A) hemoglobin.O B) white blood cells,O C) platelets.O D) plasma.
Sonja [21]
I assume you are not familiar with this topic. I suggest you read more about this protein from online books or ur own book if you have. 
White blood cell = its a cell just like the name suggests, in fact, more like its a family of cell types that are responsible for immunity and some other functions (it doesnt look like you need to know the details on other functions so just stick with immunity) 
Platelets = these are not really cells, but you can say they are sorta like bits of cells, they contain important protein(s) for blood clotting and surely they themselves play important role in blood clotting which prevents us from bleeding to death when we get a cut for example. 
Plasma = this is part of blood, excluding red blood cells and white blood cells, its basically fluid with nutrients, ions and most importantly blood proteins, such as carrier ones like Albumin. 

The only one left is Hemoglobin,
heme is the iron part (which is not really iron alone but thats the only one u need to know) 
and globin is the protein part 
these two make up hemoglobin 
so this complex resides inside red blood cells, which flow in our vessels to every part of our body supplying them with nutrients and oxygen taken from our capillary system of lungs.  
6 0
3 years ago
Which amino acid is best represented by "CCA"? *
ratelena [41]

Answer:

Proline

Codon-Amino Acid Abbreviations

Explanation:

3 0
3 years ago
A student is measuring the effect of different temperatures on the effect of enzymes in biological systems. What temperature ran
viktelen [127]

Answer:

A. 25 °C, 30 °C, 35 °C, 40 °C, 45 °C  

Explanation:

Each enzyme has a temperature at which it works best. In humans and many animals, that temperature is around body temperature (37 °C or 98.6 °F). Most enzymes are denatured and work poorly at 40 °C (104 °F).

That automatically eliminates Option B.

I would pick a temperature close to 37 °C (98.6 °F) and temperatures at intervals above and below that.

Option D is wrong because it includes no temperatures above body temperature.

Option C is wrong, because it includes temperatures of 45 °C and 55 °C, at which the enzymes will be denatured.

That leaves Option A as the best answer. It includes only one temperature above 40 °C.

8 0
3 years ago
2. Which particle's mass is similar to a proton's mass? ( A. an atom B. a nucleus C. a neutron D. an electron​
ozzi

Answer:-

Option C. a neutron

5 0
3 years ago
What differentiates an autonomic reflex from a somatic reflex?
GREYUIT [131]

Answer:

Answer is D. a two-neuron motor pathway.

Explanation:

The reflex that involves the sensory neurons connecting sensory receptors to the CNS and motor neurons that connect to the skeletal muscle is known as somatic reflex, while the autonomic reflex is the reflex involving the visceral effector, e.g cardiac muscle.

5 0
3 years ago
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