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
yawa3891 [41]
3 years ago
5

Evolutionary relationship between modern frogs and ancient frogs?

Biology
1 answer:
Lana71 [14]3 years ago
4 0

When did frogs evolve? Frogs developed out of lungfish about 375 million years ago, in the Devonian period. They used their lungs to leave the water and live on land

You might be interested in
New cells come from old cells through cells
zimovet [89]

Answer:

New cells are created from a process called cell division. The new cells are produced when a cell, called the mother cell, divides into new cells called daughter cells. When two daughter cells have the same number of chromosomes as the original cell, the process is called mitosis.

6 0
3 years ago
A female rabbit heterozygous at two genes (named A and B) is test-crossed with a male rabbit. Their progeny include 442 A/a;B/b,
natta225 [31]

Answer:

The genes are linked and 10 mu apart.

Explanation:

A female AaBb rabbit is test crossed with a male rabbit (aabb). The male can only produce<em> ab</em> gametes (all the progeny will have ab on one of the homologous chromosomes).

If the genes assorted independently, the female would produce 4 types of gametes with the same frequency: 1/4 AB, 1/4 Ab, 1/4 aB and 1/4 ab.

However, the observed AB and ab gametes were much more frequent than Ab and aB, which means that the genes are linked and alleles on the same chromosome do not assort independently during meiosis.

Recombination is a rare event, so the most abundant gametes are the parentals. That is how we know that the mother had the AB/ab genotype. The recombinant gametes therefore are Ab and aB.

Distance (mu) = # Recombinants × 100/ Total progeny

Distance = (54 + 46) × 100/ 1000

Distance =  100 × 100/1000

Distance = 10 mu

6 0
4 years ago
Which of the following is not a tectonic boundary
EastWind [94]

Answer:

transform

Explanation:

trust me

5 0
3 years ago
How will hurricane risks and impacts change over the next 100 years?
Papessa [141]

Answer:

Hurricanes will become more frequent and expand to new areas.

Explanation:

Global warming will rise sea temperatures worldwide. This means conditions for hurricanes will be met more often (they only form in higher than average sea temperatures). That means more hurricanes will form in the future. Also because of rising sea temperatures new areas will be effected by hurricanes as they will meet the threshold required for hurricanes to form.

4 0
2 years ago
Roots do not store plant food they only transport it.
Natalija [7]
What’s the question?
5 0
3 years ago
Other questions:
  • Light is an example of what in an ecosystem?
    6·2 answers
  • Is the shaded a dominant or recessive trait?
    5·1 answer
  • How can liquid be drawn into a pipette safely?
    10·1 answer
  • Gene expression is often assayed by measuring the level of mrna produced from a gene. what level of the control of gene expressi
    5·2 answers
  • If shell fragments are found in a rock sample, it is most likely that the rock formed ___________.
    10·2 answers
  • Classification systems:
    12·1 answer
  • How does the temperature of the ocean or the land around a city affect the city’s climate?
    8·1 answer
  • Please state some examples of fungus.​
    15·1 answer
  • HELP HELP HELP!!!
    12·1 answer
  • Why do you think the process of photosynthesis and respiration are interrelated?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!