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
aleksandr82 [10.1K]
2 years ago
9

What four body plan innovations were found in an ancient flatworm

Biology
1 answer:
Oksanka [162]2 years ago
5 0

Answer:

Four innovations are central nervous system, eyes, bilateral and hermaphrodites.

Explanation:

Innovations found in an ancient flatworm were the presence of central nervous system means head and a brain. The head had eyes which is the first in the animal world. Their body is bilateral means equally divided into two parts. They are also hermaphrodites means having male and female on a single organism which was not present at that time of animals.

You might be interested in
If the Pacific Ocean is rimmed by the Ring of Fire, what can we conclude about the plate boundaries in that region?
bulgar [2K]
If the pacific ocean was rimmed by the ring of fire we can conclude that the plate boundaries are constantly moving
3 0
2 years ago
What role do proteins play in enabling the enormous amount of dna in a eukaryotic cell?
MAVERICK [17]
DNA is condensed by a certain amount just on its own, just by its own interactions within the DNA molecule,..but whne proteins get involved it gets condensed 30000 fold 
<span>what happens is that proteins called histones are like hockey pucks, and DNA wraps around it 1.5 times and then goes to another histone and wraps around that so that it looks like beads on a string (i hope that makes sense, its the only way to describe it) </span>
<span>these histones condense this DNA a lot, and when the histones get methylated then the DNA packs together even closer to get heterochromatin (VERY densely packed DNA)...the theory here is that DNA has a net negative charge due to the phosphate groups in the DNA backbone and doesnt allow the DNA to come together as closely as it could (like charges repel like charges), but when histones are methylated, the negative charge on the DNA is masked by the methyl groups and DNA can come together closer </span>
5 0
2 years ago
Some members of the royal family in great britain had hemoplilia, a recessive sex linked bleeding disorder which of the followin
dmitriy555 [2]
A C - only male expressed the disorder and only females carried the disease. This is typical of a special type of diseases where only females are and can be carriers and only men can and are affected. There aren't many diseases like this but they do exist. 
8 0
2 years ago
21. All the following are differences between arteries and veins
Lubov Fominskaja [6]

Answer:

Arteries connect to capillaries and veins don't connect to capillaries

Explanation:

Actually both are connected by capillaries

8 0
2 years ago
PLS HELP ASAP
seropon [69]
C.glass


Tell me if I’m wrong
5 0
2 years ago
Other questions:
  • How does a universal genetic code relate to the hypotheses about the origin of life on earth
    11·1 answer
  • Which of the following lower limb muscles plays an important role in maintaining posture?
    5·1 answer
  • The cells that make up a human body need oxygen at all times. During periods of exercise and activity, the amount of oxygen need
    5·1 answer
  • Caffeine is an inhibitor of phosphodiesterase. Therefore, the cells of a person who has recently consumed coffee would have incr
    6·1 answer
  • If an animal cell represented a city, the city's power plant would represent what organelle?
    6·2 answers
  • Johann maintains a $75,000 insurance policy on his boat. He pays $50 per month in premiums and his deductible is $2,500. If he i
    5·2 answers
  • A neurotransmitter ________________.
    6·1 answer
  • What is thought to have caused the extinction of the dinosaurs?
    6·1 answer
  • What is the Cardiac Muscle Cell Appearance
    8·2 answers
  • Davy made a model of the water cycle by adding some water inside a plastic bag, sealing the bag, and placing it in a sunny area.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!