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
Andru [333]
3 years ago
11

Down Syndrome results from a _________ chromosomal abnormality where there is an extra 21st chromosome.

Biology
1 answer:
Blababa [14]3 years ago
7 0
I think it's B Trisomy.
You might be interested in
Awarding BRAINLIEST answer!! Please help asap!!
S_A_V [24]
One consequence of the overpopulation of deer would be a reduced diversity. Deer tend to eat only some types of plants, so those plants are removed, and other types of plants stay. Hope this helped! Brainliest is always appreciated.
6 0
3 years ago
Read 2 more answers
A state is looking to reduce the cost of transportation, which uses 7.10×10^14 BTUs per year. Currently the cost of 10^6BTUs is
Ilia_Sergeevich [38]

Answer:

$ 284 million dollars

Explanation:

If the energy usage of all transportation is 7.10 × 10¹⁴ BTU per year, if their efficiency is to increase by 20%, The new energy usage will be (1 + 20/100)7.10 × 10¹⁴ BTU per year = (1.02)7.10 × 10¹⁴ BTU per year = 7.242 × 10¹⁴ BTU per year.

The energy saved is thus the difference 7.242 × 10¹⁴ BTU per year - 7.10 × 10¹⁴ BTU per year = 0.142 × 10¹⁴ BTU per year.

Since 10⁶ BTU costs $ 20.00, then,

0.142 × 10¹⁴ BTU costs 0.142 × 10¹⁴ BTU × $ 20.00/10⁶ BTU = $ 2.84 × 10⁸ per year = $ 284 million dollars

So the state saves $ 284 million dollars in one year

8 0
3 years ago
How do stars have light
VMariaS [17]

Answer:

Our sun is extremly hot. like our sun, hydrogen is being converted into helium, a process which gives off energy that heats the star

Explanation:

7 0
3 years ago
Which of the following could be considered
Lemur [1.5K]

Answer:

considered what? the question was not finished

Explanation:

5 0
3 years ago
Read 2 more answers
Help fast give five stars and brainliest and be friends
kolbaska11 [484]

Answer:

The answer is A or number 1

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Sensation is? ____a. process by which our sensory receptors take in stimulus energy from our environment. ____b. process of neur
    7·1 answer
  • Which of the following is an example of an adaptation?
    15·1 answer
  • Cholesterol belongs to which class of molecules?
    8·1 answer
  • A type of arthritis characterized by deposits of uric acid crystals in the joints is known as ____________________.
    6·1 answer
  • 2. Nuclei are roughly spherical in shape, and
    9·1 answer
  • 1. Scientists cannot perform an experiment without first asking questions about the things they observe around them. What was th
    15·1 answer
  • Describe a procedure that you would use to localize the protein dynein
    10·1 answer
  • How do plants produce their food?
    8·1 answer
  • Are all macromolecules monomers
    14·1 answer
  • A group of organisms that can breed with one another and reproduce fertile offspring.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!