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
dimaraw [331]
3 years ago
13

A police officer visits Ms. Duhaime's first-grade class one morning to talk about safety precautions at home and on the street.

The students listen quietly and attentively while the officer speaks. At the end of the visit, the officer and teacher agree that the students' good behavior warrants some kind of reinforcement. Given what we know about effective reinforcers at different grade levels, their best choice would be:
A) plastic toy police "badges" awarded by the officer.B) a letter home to parents describing the children's good behavior.C) an official-looking "good behavior" certificate given at the school's award ceremony the following week.D) twenty minutes of free time at the end of the day.
Biology
1 answer:
IRISSAK [1]3 years ago
3 0

Answer: A)

Explanation:

You might be interested in
What plant tissue located at the tips of roots and shoots will differentiate into different plant cells?
vladimir2022 [97]

Answer:

meristems

Explanation:

8 0
3 years ago
Read 2 more answers
Distinguishing between Rotation
Naily [24]

Answer:

For example, put a table in the middle of your room and spin around while going in a circle around the table going round the table is revolution spinning around by yourself without going around something is rotation. Another example is the Earth revolves around the sun while rotting on it's axis and the Moon revolves around the Earth. Just like the saying the world doesn't revolve around you. It means that the world isn't based off you. :) Hope this helped.

Explanation:

Brainliest

5 0
3 years ago
You are studying droplets of various solutions and comparing them to water. what shape do they start as?
cricket20 [7]

In the case of liquid droplets, including water, surface tension is the factor, which is accountable for their shapes and configuration. Though can easily be malformed, the droplets of water seem to be pulled into a spherical shape due to the cohesive forces of the surface layer.  

In the non-existence of other forces, involving gravity, the drops of almost all the liquids would be almost spherical.  


5 0
3 years ago
Read 2 more answers
Which type of movement does not occur at the shoulder joint? which type of movement does not occur at the shoulder joint? abduct
Elena-2011 [213]

The answer is gliding. Abduction, rotation (external and internal) and extension all occur in most joints including the ball-and-socket , saddle and condyloid joints. The shoulder joint is a ball-socket joint. Gliding occurs in intercarpal joints of the hands.


7 0
3 years ago
A train accelerates at a rate of 2.5 km/hr/sec. During the acceleration period, its velocity changes by 55 km/hr. How long did t
lina2011 [118]
A = (v2-v1) / t --> t = (v2-v1)/A
t = (55 km/hr)/(2.5 km/hr•sec)
t = 22 sec
7 0
3 years ago
Read 2 more answers
Other questions:
  • 1. What are the biotic factors of an ecosystem?
    12·2 answers
  • in figure 33-5 identify the four chambers of the heart then use them to describe the path through which blood travels in the hea
    11·1 answer
  • Fifteen is no more than a number t divided by 5
    5·1 answer
  • A scientist is studying the effect on human health of bacteria that live in the human intestine. In her study, she found that th
    13·1 answer
  • Which animal has blue blood ??​
    11·2 answers
  • To which class of macromelules do anitbodies belong to<br><br> Pls answer now I am giving 40 points
    13·2 answers
  • Why does the element carbon create such different minerals as diamond and graphite ?
    8·1 answer
  • People who are lactose intolerant cannot extract energy from milk because:
    7·1 answer
  • If you were a chemical engineer tasked with developing a photosynthesis inhibitor to be used in agriculture, propose which part
    12·1 answer
  • Test your understanding by predicting how the sodium-potassium pump becomes integrated into the outer cell membrane. Find the st
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!