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
Scrat [10]
3 years ago
8

Ultrasound is used for pre nature scanning. This is much safer than using x rays. However doctors were only sure it was safe aft

er experiments on mice. Explain whether or not you think that these experiments were justified
Biology
1 answer:
kenny6666 [7]3 years ago
3 0

Answer:

They were not justified bc they were only tested on animals

Explanation:

You might be interested in
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
DanielleElmas [232]

Answer:

The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.

Explanation:

7 0
3 years ago
Choose ALL that apply: Changes the APPARENT WAVELENGTH of the light. 1 point
Nataly_w [17]

Answer:

The correct answer is "Red shift"

Explanation:

Blue shift: When the source and observer approach one another, the evident frequency increments or apparent wavelength diminishes. Here the Doppler shift is positive. This is known as blue shift.

Red shift: When the source and observer move away from one another, the clear frequency diminishes or apparent wavelength increments. Here the Doppler shift is negative. This is known as red shift.

8 0
3 years ago
Beavers are able to adapt to the changing conditions of all four seasons. Which of the following would threaten the survival of
ELEN [110]

Answer:

C

Explanation:

The question says that beavers are able to adapt to changin questions in each season, so we know that snow in winter, or heat in summer won't bother them. These types of variations in weather are what the beaver is used to. This would eliminate A (July is in summer, so the beavers would expect heat), B (December is in winter, so the beavers would expect freezing conditions), and D (January is in winter, so the beavers expect the snow). That leaves us with C. Fires are not a typical condition for a season- fires aren't expected every fall. Therefore, when there is a fire, beavers will not know what to do. Hope this helps, and feel free to ask me for more clarification!

6 0
3 years ago
Read 2 more answers
Paula is a middle-aged doctor who is an expert at laser eye surgery for the correction of myopia (nearsightedness). she graduate
Serga [27]
<span>Paula, because she has performed the operation very often and now she possesses the ability to perform the operation more strategically and flexibly. Also because she has 35 years of experience should reduce such other negative factors such as complications during procedure.</span>
7 0
3 years ago
HELPPP!!!Ill give you a 5 star rating and a heart!
Lerok [7]
A. The great egret. It has a similar hunting area (the edge of the pond) and also eats fish, as well as other similar prey to the great blue heron
5 0
3 years ago
Other questions:
  • What type of energy transformation takes place when carbon is circled during cellular respiration
    15·2 answers
  • Why are there sutures on the human skull?
    13·1 answer
  • How does life on earth depend on photosynthesis?
    6·1 answer
  • Why do the polar regions have high albedo?
    8·1 answer
  • What system has different male and female structures in human body?
    12·1 answer
  • Today, there are hundreds of chemical pesticides made from human-made materials.
    10·2 answers
  • What is positive feedback? What is negative feedback? Biology wise
    12·1 answer
  • CAN SOBODY PLEASE HELP ME WITH THIS SCIENCE HW 35 POINTS!!!!!!!!!!!!!!!
    13·1 answer
  • Which type of reproduction involves only one parent?
    9·2 answers
  • the information for folding proteins into secondary and tertiary structures is present within its amino acid sequence. do you th
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!