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
cestrela7 [59]
3 years ago
13

Earth was formed approximately 4.6 billion years ago. true false

Biology
1 answer:
GaryK [48]3 years ago
5 0
That is a true question

You might be interested in
4. Which principle helps to explain the reason behind why the two alleles for a single trait separate from each other when gamet
raketka [301]
I think the answer is Segregation
6 0
3 years ago
Read 2 more answers
What is the role of erector pili?
Basile [38]
Arrector Pili<span> Muscle - This is a tiny muscle that attaches to the base of a hair follicle at one end and to dermal tissue on the other end. In order to generate heat when the body is cold, the </span>arrector pili<span> muscles contract all at once, causing the hair to "stand up straight" on the skin.

Hope this helped, credits go too google.</span>
4 0
3 years ago
What happens to the circulatory system when someone coughs?
natta225 [31]

Answer: The relationship between blood pressure and heart rate responses to coughing was investigated in 10 healthy subjects in three body positions and compared with the circulatory responses to commonly used autonomic function tests: forced breathing, standing up and the Valsalva manoeuvre. 2. We observed a concomitant intra-cough increase in supine heart rate and blood pressure and a sustained post-cough elevation of heart rate in the absence of arterial hypotension. These findings indicate that the sustained increase in heart rate in response to coughing is not caused by arterial hypotension and that these heart rate changes are not under arterial baroreflex control. 3. The maximal change in heart rate in response to coughing (28 +/- 8 beats/min) was comparable with the response to forced breathing (29 +/- 9 beats/min, P greater than 0.4), with a reasonable correlation (r = 0.67, P less than 0.05), and smaller than the change in response to standing up (41 +/- 9 beats/min, P less than 0.01) and to the Valsalva manoeuvre (39 +/- 13 beats/min, P less than 0.01). 4. Quantifying the initial heart rate response to coughing offers no advantage in measuring cardiac acceleratory capacity; standing up and the Valsalva manoeuvre are superior to coughing in evaluating arterial baroreflex cardiovascular function.

Explanation:

5 0
3 years ago
Chromosome pairs contain different versions of genes, which are called?
Zarrin [17]
The answer is, different versions of the same gene are called alleles
3 0
3 years ago
How could you investigate the idea that DNA is found only in living or once-living things?
Phoenix [80]

Answer: Cloning, dude just watch jurassic park

Explanation:

4 0
3 years ago
Other questions:
  • A group of students went on a forest trail as part of their project activity. They were given a task of calculating the NPP of a
    13·1 answer
  • When the temperature of the air is 25°C, the velocity of a sound wave traveling through the air is
    10·1 answer
  • Why was protein originally thought to be the genetic information storage molecule instead of dna?
    6·1 answer
  • Describe the biotic and abiotic features of the temperate grasslands
    9·1 answer
  • Is the back line on volleyball court Ace​
    15·1 answer
  • HELP ASAP. Answer problem in photo.
    13·2 answers
  • Which individual is most clearly in need of diagnostic testing for lung cancer?
    6·1 answer
  • Saturated fats are those fats that become _____ at room temperature and that are typically made from ______ ______ (3)?
    5·1 answer
  • During a laboratory exercise in class, Wei is asked to observe cells from different organisms. Her teacher asks her to list stru
    12·1 answer
  • Write a short note on tadpole and froglet.<br>please write in long​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!