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Leni [432]
2 years ago
7

What is the difference between a mold and a cast fossil?.

Biology
1 answer:
OleMash [197]2 years ago
8 0
The mineralized impression of the organism left in the sediment is called a mold. The mineralized sediment that fills the mold recreates the shape of the remains. This is called a cast
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Deoxygenate blood is collected within the right atrium. It must exit through the _____valve to enter the right ventricle.
nalin [4]

Answer:

Tricuspid valve

Explanation:

The tricuspid valve helps push blood only from the right atrium into the right ventricle

7 0
2 years ago
The active site of an enzyme is a series of amino acids that bind to the enzyme
BigorU [14]

Answer:

False

Explanation:

When the proteins change its conformation and attain a 3-Dimensional structure therefore they form a pore or cleft like structure. This cleft is formed by the different part of the amino acid sequence which helps from the weak bonds between the proteins to the substrate.  

The substrate gets attached to the active site and the enzymes lower down the activation energy of the reaction and thus proceeds the reaction at a faster speed.

Since the active site is the site for the attachment of the substrate and not other enzymes therefore False is the correct answer.

3 0
3 years ago
The resting potential is the permanent state of the neuron; the charge of the neuron does not change.
g100num [7]

Both of the statements that is given is false because when the neuron is in resting potential, it is not in a permanent state and the resting potential is negative. The charge of the neuron will be depending on each activities or the charges it accumulates, that is why it is not true that it does not change. 

8 0
4 years ago
Which taxonomic group includes kingdoms and all other levels of taxonomy?
timama [110]

Answer: Domain.

Explanation: I'm glad that you asked this question. When it comes to to biology and the identification of species, domain is the highest rank that you can find in taxonomy. If you look at the taxonomy ranks, this is the order: Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species.

That is why domain includes all of the rest, because in the pyramid, it is the one at the top.

7 0
4 years ago
Read 2 more answers
Rowan is at an all-you-can-eat breakfast. He has a pancake on his plate and is going to put another pancake on top of it.
Vinvika [58]

Answer:

Why

Explanation:

4 0
3 years ago
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