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
inysia [295]
3 years ago
8

What is the definition of spiral density wave?

Biology
1 answer:
aleksandrvk [35]3 years ago
3 0
Theory proposed by C.C. Lin and Frank Shu in the mid-1960s to explain the spiral arm structure of spiral galaxies
You might be interested in
How do the two photosystems work together to capture energy from sunlight?
Katarina [22]
Photosystem II absorbs energy and energizes electrons. The electrons are passed along to photosystem I, which absorb more energy and adds it to the electrons.
3 0
4 years ago
What is the genotype of the mother?<br><br> A. PP<br> B. pp<br> C. Pd<br> D. P
tekilochka [14]

Answer:

I want to say its A

Explanation:

8 0
3 years ago
Please help! punnet square and shouldn’t be hard! thank you
irina1246 [14]

Answer:

In the resulting offspring the correct proportions are for the genotype 1:1 and for the phenotype 1:1 (first option).

Explanation:

According to Mendel's Laws, the product of the cross between a heterozygous individual and a homozygous recessive for a character will always be a hybrid or recessive offspring as the Punnett square shows on image.

For the character -tall and short- of the pea plant:

Alleles    t         t

T           Tt        Tt

t             tt         tt

<u>For the genotype</u>: probabilities that in the offspring there are hybrid individuals with genotype Tt is 50% and recessive tt 50% .

<u>For the phenotype</u>: the probabilities of tall plants in the offspring are 50%, and 50% short plants.

A 50:50 ratio, for genotype and phenotype, is equivalent to saying that both phenotypic and genotypic ratio is 1:1.

Learn more:

Example of Punnett square brainly.com/question/1299325

4 0
3 years ago
Which statement best explains why this occurred?
aalyn [17]
There's no picture !
5 0
3 years ago
What's the only kind of parrot that can't fly?
Ray Of Light [21]

Answer:

Kakapo

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which freshwater source is a permanent shallow body of water with plant life throughout? lake pond reservoir wetland
    9·2 answers
  • Which element is responsible for the color change in the benedicts test
    12·1 answer
  • What is meant by the bioavailability of a vitamin in food?​ ​the total amount available from plant and animal food ​the amount a
    10·1 answer
  • Hundreds of years ago, islam split into two branches that persist today. these two branches are the
    10·2 answers
  • Volcanic eruptions occur because of
    13·1 answer
  • 9. How is the mitochondria rected to the bydrogen ion pump2 (1 point)
    12·1 answer
  • Explicamos los factores que
    10·1 answer
  • Ancient atmospheric levels of gases can not be determined by?
    7·1 answer
  • How attitudes and safety skills may deal with the impact of environmental factors at a personal level?
    5·1 answer
  • What is the dominant impact that humans have on alpine glaciers?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!