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
SCORPION-xisa [38]
3 years ago
10

Under what circumstances can twins be born in humans?

Biology
2 answers:
SashulF [63]3 years ago
7 0
Twins are born when two eggs are fertilized by separate sperms or the single zygote splits and forms two embryos. Atwinis one of twooffspringproduced in the samepregnancy
Vinil7 [7]3 years ago
7 0
Twins can be born when one sperm goes into one egg or when the sperm split and can have a twin in each egg meaning two separate eggs
You might be interested in
In the scenario above, Red hair (R) is dominant to blonde hair (r). If two parents are
Taya2010 [7]
75 percent will have red hair and 25 percent will have blonde :)
6 0
3 years ago
Neuroglia do all of the following except:______. a. transmit electrical impulses. b. regulate interstitial fluid composition. c.
Ivenika [448]

Answer:

Option A, transmit electrical impulses

Explanation:

Neuroglia also known as glial cells which act as supporting cells for the nervous system and its functioning. These cells surrounds the neurons and produce insulation between them as they produce myelin sheath that coats the axon. There are six types of neuroglia cells and they all work to provide essential nutrients to the neuron cell and also maintain the homeostasis (under which it also regulate the interstitial fluid composition and repair tissue framework)

Hence option A is correct

8 0
3 years ago
Read 2 more answers
In homeostasis, what is it that produces the response that moves the physiological variable back towards the middle of its healt
insens350 [35]

Answer:

effector

Explanation:If the value is not at the set point or is outside the normal range, the control center sends a signal to the effector. The effector is an organ, gland, muscle, or other structure that acts on the signal from the control center to move the variable back toward the set point.

7 0
3 years ago
Why is it correct to say that only green plants do photosynthesis but not correct to say that only animals do respiration?
My name is Ann [436]
Plants<span> respire all the time </span>because<span> their cells need the energy to stay alive, </span>but plants can<span> </span>only<span> photosynthesize when they are in the light</span>
7 0
4 years ago
Which of the following is NOT a potential sign of skin cancer?
natima [27]
B pimples can last more than 2 days
6 0
3 years ago
Other questions:
  • Why does our heart pump blood? Own words pls.
    10·2 answers
  • Why do you think premenopausal women need more iron than<br> men of the same age?
    8·1 answer
  • In some ecosystems, coyotes prey on white-tailed deer. If the population of white-tailed deer suddenly decreased, what would mos
    14·1 answer
  • How does human evolution or natural selection relate to the susceptibility of diseases?
    6·1 answer
  • What is the remaining ratio of alleles if my total is 140 and 65.8% are red and 18.2% are blue?
    12·2 answers
  • Pls I need help with the test variable and outcome plssssssss help meee
    12·1 answer
  • Suppose you are determining the growth rate of two species of plants. Species A is 25 cm tall and grows 3 cm per month. Species
    7·1 answer
  • Can someone help me
    13·1 answer
  • Page 7e) Mrs. karki deposited a sum of money 7aa in a bank at the rate of 5 90 per year Simple interest. T. She received an inte
    9·2 answers
  • What is photosynthesis​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!