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
GuDViN [60]
4 years ago
15

1. Which one lived in Antarctica earlier , the the labyrinthodont, the lystrosaurus, or the duck-billed dinosaur? Explain.

Biology
2 answers:
exis [7]4 years ago
8 0
<span>Labyrinthodont Lived First...
</span><span>Did dinosaurs once lived on antarctica?<span>Absolutely! A theropod dinosaur named Cryolophosaurus (frozen crested lizard)
Hope I Helped plz LEave a Thanks</span></span>
miskamm [114]4 years ago
3 0

Answer is labyrinthodont

About 110 million years ago, labyrinthodonts ( maze-toothed), a group of extinct amphibians. They were evolved from lobed-finned fish in the Devonian period. They were dominant animals in the rift valley was present at that time between Antarctica and Australia.

You might be interested in
one of the best-known mechanisms of population control is the parasite/host relationship. true or false?
nadezda [96]
False <span>its predator-prey relationship</span>
6 0
4 years ago
ou are given two true-breeding groups of rabbits. The first group has floppy ears and white fur. The second group has straight e
Lena [83]

Answer:

you expect to see that 75% of your F2 generation rabbits have floppy ears and 25% of your rabbits have black fur.

Explanation:

<u> Available data:</u>

  • Two true-breeding groups of rabbits.
  • The first group has floppy ears and white fur.
  • The second group has straight ears and black fur.
  • 100% of the F1 generation has floppy ears and gray fur.
  • Each of these traits is determined by a single gene and undergo independent assortment.

Having this information we can infer that floppy years, expressed by F allele, might be dominant over straight ears, expressed by f allele. And that the fur color is affected by incomplete dominance, being B the allele expressing black color, b the allele expressing white color and Bb the genotype for grey color.

Incomplete dominance is a condition where neither of the alleles completely dominates over the other one. Descendents possess an intermediate phenotype between the two parental phenotypes and not the dominant one.

Cross between groups

Parental)  FFbb   x   ffBB

F1)                    FfBb

<u>Cross for the ear traits:</u>

Parental)  Ff    x    Ff

Gametes) F  f    F   f

Punnet square)    F       f

                  F      FF      Ff

                  f       Ff      ff

F2) 75% of the progeny have floppy ears, FF and Ff

      25% of the progeny have straight ears, ff

<u>Cross for the fur color traits</u>:

Parental)  Bb     x     Bb

Gametes) B   b     B    b

Punnet Square)     B      b

                       B    BB    Bb

                       b    Bb    bb

F2) 25% of the progeny have black fur, BB

     50% of the progeny have grey fur, Bb

      25% of the progeny have white fur, bb

               

6 0
3 years ago
New crust forms? When
Ugo [173]

Answer:

The crust forms at the ridge and is carried away by the movement of the plate as new crust forms to take its place. The oceanic crust is youngest new a mid ocean ridge and oldest far away from it.

Explanation:

7 0
4 years ago
Read 2 more answers
Peter is burning fossil fuels as he uses the lawnmower. Which greenhouse gases is he generating?
Strike441 [17]

Answer:

carbon dioxide and methane

<u>OAmalOHopeO</u>

5 0
4 years ago
Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Us
ser-zykov [4K]

Answer:through carbon cycle

Explanation: look up for the word and also look at the diagrams for better understanding

3 0
3 years ago
Read 2 more answers
Other questions:
  • Why marine protozoa do not have contractile vacuole? ...?
    6·1 answer
  • DNA can make exact copies of itself through replication because the nitrogen bases ALWAYS pair
    6·2 answers
  • The human heart, composed of specialized muscle cells, beats to a specific rhythm. The heart cell rhythm partly depends on the o
    7·2 answers
  • Name two places smooth muscles are found
    15·2 answers
  • Excess salt in the body can damage cells and organisms. Marine Iguanas, which live on the beaches of the Galapagos Islands, eat
    6·1 answer
  • How does the energy transformation in a wind powered system compare with the energy transformation in a water powered system?
    14·1 answer
  • Which of the following lists includes only components that provide structural support, allow movement, or enable communication b
    10·1 answer
  • Which is a chemical property of ethanol?
    13·2 answers
  • CNA SOMEONE PLZ ANSWER THESE QUESTIONS CORRECTLY WILL GIVE BRAINLIEST
    8·2 answers
  • The Titanic was the most<br> A. vessel<br> B. luxurious<br> C. gazed <br> ship of its kind in 1912.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!