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Alex
3 years ago
13

In pavlov's classical conditioning experiment, he presented the sound of a bell along with meat powder to his dogs. after severa

l trials, the dogs learned to salivate to the sound of the bell in the absence of the meat powder. if pavlov's dogs did not salivate to a buzzer but only to a bell, then this phenomenon would be an example of ___________.
Biology
1 answer:
Simora [160]3 years ago
6 0
Conditioned stimulus

Classical conditioning is a learning procedure in which a biologically potent stimulus paired with previously neutral stimulus. This pairing will cause a response  that can be the same as the potent stimulus. This is done repeatedly for an organism to elicit a conditioned response to the previously neutral stimulus that was paired to the active stimulus. The dog salivates due to the idea that  food is related to the sound of the bell.
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Question 7(Multiple Choice Worth 4 points)
Maurinko [17]

Answer: The correct option is B (self-replicating molecules, such as RNA and DNA)

Explanation:

The current theory of the process of evolution makes use of present day knowledge of genes and chromosomes to explain the source of genetic variation upon which natural selection works. These genes are discrete units of inheritance which determine hereditary characteristics. All the information for the inheritable characteristics of an individual are contained in these genes.

When a cell divides, the genes duplicate themselves so that each daughter cell has an identical set of genes as the original parent cell. These genes are passed from parents to offspring in the gametes of the parents.

Gene are found in the DNA( Deoxyribonucleic acid) molecules or RNA (Ribonucleic acid) molecules. These molecules are capable of self replication due to a process called mutation. Mutations are random changes in DNA that alter genetic information and sin introduce new characteristics. They may occur

--> in body cells or

--> during gamete formation.

Thus, evolution from vesicles to true cells is through self replicating molecules through the process of mutation which is the raw material for evolution

8 0
3 years ago
How does the shape of the vomerine teeth help it preform its function(holding prey) This is about frogs btw
Margarita [4]

Answer:

The shape in V of the vomerine teeth is useful to hook the prey and hold it until the frog can swallow it.

Explanation:

In frogs, we can distinguish maxillary teeth, premaxillary teeth, and Vomerine teeth.

Vomerine teeth are projections of the vomer bone, located in the anterior part of the paladar and between the internal nares.

Vomerine teeth are specialized structures that help frogs catch and hold their prey. They are not involved in chewing or killing (frogs swallow the entire prey alive), just holding the creature before swallowing it.

These projections are covered by soft tissue. When the frog catches the prey, presses the tongue against the roof of your mouth. The vomerine teeth hook the prey and prevent it from slipping or wandering away.

The shape in V of the vomerine teeth is useful to hook the prey and hold it until the frog can swallow it.

6 0
3 years ago
The word “cumulative” means that something builds on itself. Which example best shows how scientific knowledge is cumulative?
adell [148]

Answer:

B

Explanation:

Cumulative means that someone came up with an idea first and someone later built an idea off of that.  Kepler basing his laws off of Newton's laws is the only option that uses cumulative knowledge.  Everything else is either completely independent or working together neither of which is cumulative.

5 0
3 years ago
During photosynthesis different gases move in and out of plant cells which phrase best represents the net flow of gases involved
malfutka [58]

Answer:

Carbon dioxide moves in; oxygen moves out

Explanation:

7 0
3 years ago
A. Caudata B. Apoda C. Anura
kupik [55]

I dont really understand where someone would get this information. was there a document or article you were supposed to read before this if so that would be very helpful.  

6 0
2 years ago
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