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jasenka [17]
3 years ago
15

The number of valence electrons an element has changes often, so we cannot use the periodic table to predict the number of valen

ce electrons an element
has
True
False
Biology
2 answers:
NNADVOKAT [17]3 years ago
6 0

Answer:

<u>False</u>

Explanation:

The number of valence electrons on an element is also the same or else it would be a different element.

Maru [420]3 years ago
5 0

Answer:

False

Explanation:

Different elements will have a different amount of valence electrons, but a certain element will always have the same amount of valence electrons.

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Site of the chemical reactions of the<br> cell including synthesis of proteins<br> In plant cells
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Hello! Good day to you. My name is Angie and I'll be helping you. If you could thank me, I'll be really happy!

I'm not so sure about the second line but the closest answer is the Cytoplasm!

It was nice helping you :)

8 0
3 years ago
Consider the following 3 populations of butterflies. Assume HW equilibrium. With these butterflies brown spots on the wings is r
goblinko [34]

Answer:

Population 3

As there are more number of individuals in this population , allele frequency is least likely to alter because of accident which may involve not many butterflies.

Population 1

Bottle neck effect causes more losses due to genetic drifts on small populations. So population 1 with 50 butterflies is most susceptible.

Population  3

Population 3 has the highest frequency of the brown allele.

Population 1 = 5/45 = 0.11

Population 2 = 125/500 = 0.2500

Population 3 = 313/1250 = 0.2504

Explanation:

8 0
3 years ago
The structure that regulates air pressure between the external atmosphere and the middle ear cavity is known as the:
denis23 [38]

Answer:auditory tube

Explanation

5 0
2 years ago
1. Jubilee is beginning first grade. Everyday, the
larisa [96]

Answer:

a. Unconditioned Stimulus (US) – Teacher saying jump  

b. Conditioned Stimulus (CS) – Clearing the throat, saying Uhmmmm... and then banging the stick/ruler and saying jump

c. Unconditioned Response (UR) – Jumping after hearing the word “jump”  

d. Conditioned Response (CR) – Jumping after hearing Uhmmmm….banging of ruler and word “jump”

Explanation:

Unconditioned response is one in which the response generated in natural while in conditioned response, response is generated in unnatural fashion.

Likewise, unconditioned stimulus is a natural causing factor behind any natural response while conditioned stimulus is an unnatural causing factor behind any unnatural response.  

a. Unconditioned Stimulus (US) – Teacher saying jump  

b. Conditioned Stimulus (CS) – Clearing the throat, saying Uhmmmm... and then banging the stick/ruler and saying jump

c. Unconditioned Response (UR) – Jumping after hearing the word “jump”  

d. Conditioned Response (CR) – Jumping after hearing Uhmmmm….banging of ruler and word “jump”

7 0
4 years ago
Nonnative species are only introduced unintentionally.
kykrilka [37]
The answer is false
if you need an example horses where brought to America by Spainiards for transport
4 0
4 years ago
Read 2 more answers
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