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Angelina_Jolie [31]
2 years ago
13

A scientist wants to know why the honeybee population is declining. Which step would the scientist MOST LIKELY do first?

Biology
1 answer:
Valentin [98]2 years ago
7 0

Research to see if there is already a widely accepted explanation.

Explanation:

Because if the scientist's problem is already solved and accepted he doesn't have to waste his time .

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Which are the oldest layers of rock?
Evgesh-ka [11]

Answer:

Its the bottom because its located in the bottom

Explanation:

a basic law of geochronology, stating that in any undisturbed sequence of rocks deposited in layers, the youngest layer is on top and the oldest on bottom, each layer being younger than the one beneath it and older than the one above it.

5 0
3 years ago
What has changed in this room since you walked in?
liraira [26]

Answer:

One more person is in the room

Explanation:

a person increased in the room

8 0
3 years ago
Aminolevulinate dehydratase (ALAD ) is an enzyme that relies on zinc as a coenzyme. A zinc ion binds to the ALAD active site, wh
slavikrds [6]

Answer:

The correct option is C. It changes the three-dimensional structure of the active site so that ALAD is no longer compatible with its substrate.

Explanation:

Co-factors are molecules that are required by an enzyme to perform its function of catalysis. If a wrong co-factor binds to the enzyme then it will change the three-dimensional structure of the enzyme and the substrate will no longer fit into the enzyme. Hence, Option C is the best choice that explains the inhibition of ALAD.

Other options are false because :

Option A: The wrong co factor will not affect the substrate nor will it make it compatible for ALAD's active site.

Option B:  The wrong factor doesn't change the amino acid sequence of the protein or enzyme, rather it changes the three dimensional structure of the enzyme.

Option D : The wrong co factor won't allow the reaction to proceed at a faster rate, rather it will inhibit the reaction.  

6 0
2 years ago
How is the placenta adapted to perform its function/job
Natalija [7]
<span>What a fascinating question! Just out of college, on my first job, I was called to the delivery room to assist the obstetrician in collecting a blood sample from the not-yet born fetus? scalp. I was nearly immobilized at the sight of the impending birth. Ever since that night, I have gotten goosebumps when witnessing a birth. It is certainly an amazing event, and pondering the entire journey from conception to birth is marvelous! Some of the material I have found is published by religious, political and anti-abotion sites. Neither Google Answers nor I endorse any of these sites. Such web pages were cited here for conception and gestation information, and not because of ideology.</span>
8 0
2 years ago
What structures of a living cell are not visible?
alisha [4.7K]
We were not able to see microtubules, centrioles, rough endoplasmic reticulum, smooth endoplasmic reticulum, plasma membrane, ribosomes, golgi apparatus, vesicle, mitochondrion and chloroplast.
6 0
2 years ago
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