answer.
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
vodka [1.7K]
2 years ago
15

A store sells a variety of sets for building molecular models. The sets are described by the diagram below. Each circled letter

represents a box of 6 model atoms of one element. For example, the circled letter "P" represents a box with 6 model phosphorous atoms.
-----Set 1 has 12 carbon, 12 oxygen, and 18 hydrogen atoms.

-----Set 2 has 12 carbon, 12 oxygen, and 24 hydrogen atoms.

-----Set 3 has 6 carbon, 12 oxygen, 12 hydrogen, 6 nitrogen, and 6 phosphorous atoms.

-----Set 4 has 6 carbon, 6 oxygen, 6 hydrogen, and 6 phosphorous atoms.

Which change to one of the kits would make it useful for modeling proteins?
_A. Set 1, add a box for phosphorous (P) atoms.
_B. Set 2, add a box for sulfur (S) atoms
_C. Set 3, replace the box of phosphorous (P) atoms with a box of sulfur (S) atoms
_D. Set 4, replace the box of oxygen (O) atoms with a box of nitrogen atoms (N)

Biology
1 answer:
ser-zykov [4K]2 years ago
6 0

Answers :a

Explanation:it just is

You might be interested in
Which of the following best describes how cleaning products like chlorine, hydrogen peroxide, and soap influence the infectious
torisob [31]

Answer:

These cleaning products break apart the capsules of the viruses causing them to no longer be capable of infecting an individual.

Explanation:

Bleach oxidises organic molecules. This causes proteins to become denatured, or lose their shape. The viral capsule containing the DNA is a coat made up of proteins that is required for the virus to become infectious. Therefore, following bleach treatment, the viral protein capsule become oxidised, cause them to loses their shape, meaning the virus can no longer infect individuals.

5 0
2 years ago
Which three statements are supported by the data in the food label?
Leto [7]

The contents that a data in the food label is supported are by having nutritional facts, example having the percent of carbohydrates consumed in the food. Another thing, they often gave advice in milligrams when having to label the nutritional fact such as having 1,300mg of calcium. 

7 0
2 years ago
Compared to healthy dog, did the enzymes from Claire’s stomach break down the protein at a low, normal, or high rate?
MrMuchimi
Answer: low rate
Explanation:
Claire is a Great Dane who was losing weight despite the fact that she is eating. Claire doesn't have an increase in appetite and also doesn't have enough energy that is required for her to play.
Claire is losing weight because food the enzymes in her body doesn't break down the food that she eats. When compared to a dog that was healthy, the enzymes from Claire's small intestine broke down protein at a low rate.
5 0
2 years ago
Each of the following statements concerning hair is true except
Levart [38]

Answer: A. scalp hairs grow constantly throughout life.

Explanation:

Hair is a squamous keratinized epithelium which is consist of multi-layered flat cells.  Hair are made up of protein called "keratin".

The statement "scalp hairs grow constantly throughout life" is false because at a particular age or due to several factors scalp hairs stop growing.

Scalp hair growth rate depends on three main factors including sex (female hair grows faster than male), age (hair growth slows with age), and ethnicity (Asian hair grows slower than Caucasian hair).

Scalp hair growth stops because of  follicle devitalization when the hair length become two or three feet.

Hence, the correct answer is A. "scalp hairs grow constantly throughout life".

5 0
2 years ago
Which of the following is a method used to prevent soil depletion?
ratelena [41]
<span>The best method used to prevent soil depletion would be contour farming. 

In contour farming, the land is tiled in consistent elevation. Contour farming is efficient in reducing soil depletion because it can conserve rain water and reduce the erosion of soil. 

If there is no contour farming in your option, then choose A. Adding fertilizer. </span>
7 0
2 years ago
Read 2 more answers
Other questions:
  • What is the significance of an eyespot in the cell of Euglena?
    5·1 answer
  • Which of the following is not true concerning the Nereus?
    13·1 answer
  • Which phase of the cell cycle is most affected by cytarabine
    10·2 answers
  • In a species of insect, wing length is determined by a single gene, for which there are only two alleles. in a population of 150
    5·2 answers
  • In figure 28-7, what information indicates that meiosis takes place during the jellyfish's reproductive cycle?
    14·1 answer
  • . Which of the following statements is false? a) If two genes are to be expressed in a cell, these two genes can be transcribed
    14·1 answer
  • Sicle cell disease (SCD) is found in numerous populations whose ancestral homes are in the malaria belt of Africa and Asia. SCD
    9·1 answer
  • Consider two mammalian cells, one in G1 and the other in G0 (stationary) phase. If they are stimulated to pass the restriction p
    15·1 answer
  • In two experiments, radioactively-labeled oxygen (shown in blue) was used to follow oxygen through the photosynthetic process. T
    9·1 answer
  • Place the following events in the order they occur by listing their assigned letters in that order. A. Cas9 REC domains binds to
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!