1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
VMariaS [17]
3 years ago
13

The atomic mass of an element whose atoms consist of elght protons, nine neutrons, and elght electrons is:

Biology
1 answer:
OleMash [197]3 years ago
5 0

Answer:

17

Explanation:

The electrons weigh almost nothing so 8 plus 9 is 17.

You might be interested in
Which are come of the advantages of body segmentation?
Len [333]

Answer:

b. Segments can become specialized on a particular function

Explanation:

Segmentation conditions virtually every aspect of the structure and functioning of animals with a consecutive body. Generally speaking, we can say that the main advantage of segmentation is that each segment can become specialized in a specific function.

One of its advantages is related to locomotion and comes, on the one hand, from the fact that the volume of celiac fluid remains constant in each compartment, acting as an antagonistic force against which muscles can act and, on the other, from the possibility of independently control each segment . This allows the peristaltic movement (circular muscle contraction wave followed by longitudinal muscle contraction) to be localized and involve only those muscles that are strictly necessary, making the movement's energy needs considerably more profitable.

The compartmentalization of the body led to the repetition of structures, namely excretory, nervous and circulatory in each segment. This can be seen as another advantage of segmentation as it may lessen the impact of damage to the animal's body; Undamaged segments can maintain their normal functions and thus increase the likelihood that the animal will overcome the damage sustained.

Another advantage is that segmentation allows modification of certain portions of the body to perform specialized functions such as feeding, locomotion and reproduction.

7 0
3 years ago
To measure the population of lake trout in a 250-hectare lake, 400 individual trout were netted and marked with a fin clip, then
kenny6666 [7]

Answer:

Estimated size is 1600

Explanation:

Given data:

Size of lake is 250 hectares

Total number of trout who netted is 400

Total number of trout in next week is 200

Total number of trout having fin clip 50

estimation population size is estimated by mark rupture as follow

Estimated population size = \frac{(marked\ initally \times total\ recaptured)}{mark\ recaptured}

Estimated size= \frac{400\times 200)}{50}

Estimated size is 1600

4 0
3 years ago
Polymerization and the break down of a polymer are two opposite reactions. What role does a water molecule play in both of them?
ladessa [460]
<span>In the process of polymerization, a chain of similar smaller molecules called monomer join together to create very large molecules called polymer. Through this chemical reaction, water is created as a by-product. In contrast to hydrolysis or breaking down of polymers, a water molecule is used to break the covalent bond that hold the components of a polymer.</span>
8 0
3 years ago
Most countries have outlawed whaling but some countries have few or no laws protecting whales. Why are conservation pushing for
katovenus [111]

Answer:

C) Unrestricted whaling could lead to their extinction.

Explanation:

The whaling is a process of hunting and killing whales so as to get the meat, oil and whalebone so that they can be sell it out commercially. The trade of whale resources was firstly in France and Spain in 16th century but they have been spread worldwide. However, the conservation groups worldwide are pushing the restriction on whaling as unrestricted whaling can lead to complete extinction of the whale species from the Earth.

5 0
3 years ago
Read 2 more answers
Overuse injuries are a common issue many athletes and even everyday people face. I want you to research what an overuse injury i
Hunter-Best [27]

Answer: did this

Explanation:

6 0
3 years ago
Other questions:
  • Why is the phloem in a leaf important to the roots of a plant apex?
    14·2 answers
  • True or false: plants do not need cellular respiration because they carry out photosynthesis
    11·1 answer
  • A cross is performed between a plant with genotype TtYy and a plant with genotype Ttyy. If the two genes independently assort, w
    14·2 answers
  • What is the best conclusion about the trend in creative careers shown on the graph? The number of people in creative careers has
    5·1 answer
  • If a meal supplies 110 g of carbohydrates, 25 g of protein, 20 g of fat, and the equivalent of 5 g of alcohol, what % of the kca
    9·1 answer
  • Describe the relief of the Himalayan mountains!!!<br> PLEASE NEED IT URGENTLY TODAY
    9·1 answer
  • Compare the two DNA sequences. How many of the DNA codons (sets of three nucleotide bases) are different between the two sequenc
    15·1 answer
  • The shape of the cell is related to its function. Justify with examples​ pls tell fast
    9·1 answer
  • Which of the following groups has the most individuals found in the classification of animals?
    8·1 answer
  • How many protons are translocated across the inner mitochondrial membrane by complex iv for every pair of electrons passing thro
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!