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Temka [501]
3 years ago
13

What determines the fate of a star? a) The star’s age b) The star's mass c) The star’s position in the galaxy d) The star’s colo

r
Biology
1 answer:
tatyana61 [14]3 years ago
7 0
The Fate are determined by the mass of the star.
So,your answer is <span>b) The star's mass.

Hope this helps :)</span>
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Is a crayfish a producer, primary, secondary, or tertiary consumer?
Lisa [10]
Well, cray fish are omnivorous which means they eat animals too. Secondary consumers eat animals.

Cray fish are secondary consumers.
6 0
3 years ago
27. What is the major reactant needed for the Citric Acid Cycle (aka Krebs Cycle)?
sp2606 [1]

Answer: b. Acetyl Co-A

Explanation:

Acetyl CoA produced through pyruvate, amino acids, and fatty acids are oxidized in the Krebs cycle in CO2, obtaining as products NADH, FADH2 and GTP (ATP). Parallel to this oxidation, the Krebs cycle produces compounds used as precursors for biosynthesis. As it is a cycle, an oxaloacetate molecule could, in principle, oxidize an amount indefinite of acetyl CoA. Acetyl-CoA is formed from the oxidative decarboxylation of pyruvate, sequentially performed by pyruvate dehydrogenase -PDH (complex multi enzymatic of 3 enzymes), in the mitochondrial matrix.

5 0
3 years ago
The pictogram below is used for_____
igor_vitrenko [27]

It's biohazard. Also if it's flammable the symbol will show a flame and if it's corrosive it'll show a image with a hand being dissolved or like a spot missing by a liquid being dropped from a tube

5 0
3 years ago
Water is prevented from entering the active site of glycogen phosphorylase.
FrozenT [24]

Answer:

a. to prevent the unnecessary breakdown of glycogen

b. to prevent the formation of glucose

e. to prevent hydrolytic cleavage of glucose 1‑phosphate

Explanation:

the main reason is to prevent hydrolysis. because the entry of water could lead to the formation of glucose rather than glucose 1-phosphate.

3 0
3 years ago
Breastfed infants typically are resistant to disease because of ________.
DochEvi [55]

Answer:

Passice immunity

Explanation:

Breast milk, produced by female mammals (including humans), besides being rich in fat and protein is full of IgA. IgA is the immunoglobulin (immune system signal proteins) that is present in body secretions, such as milk.

The baby that is fed from the mother's breast ingests these defense proteins that allow it to tolerate different pathogens and toxins.  

It is considered passive immunity, as it does not generate memory and depends on a continuous dose to maintain defense levels.

6 0
3 years ago
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