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
joja [24]
3 years ago
6

How can we use the Doppler Effect to locate galaxies in space?

Biology
1 answer:
Hunter-Best [27]3 years ago
7 0

Answer:

I just learned this in class lol

Explanation:

if the galaxies are going way from us, it's redshirt

if the galaxies are coming toward us, it's bkieshift but it's always galaxies redshifting from us due to galaxies moving away from us

You might be interested in
Which of the following are characteristics of organisms in the Kingdom Plantae? *
GaryK [48]
Kingdom Plantae includes all the plants on the earth. They are multicellular, eukaryotes and consist of a rigid structure that surrounds the cell membrane called the cell wall. Plants also have a green coloured pigment called chlorophyll that is quite important for photosynthesis.
8 0
3 years ago
Which organs perform both mechanical digestion and chemical digestion of food?
kotykmax [81]

Answer: Mouth.

Explanation:  

The mouth is known to be performing both the tasks of chemical digestion and mechanical digestion.

The food is ingested through mouth and the teeth perform the process of mechanical digestion by breaking down the food particles into smaller particles.

Then the saliva gets mixed into the food and the enzymes(amylase) present in the saliva helps in the digestion of carbohydrates.

So, mouth is the organ that performs the process of both mechanical and chemical digestion.

6 0
3 years ago
Read 2 more answers
Evolution is the
lina2011 [118]

Answer:

Evolution is the <u>biological process</u> that happens over time in a population, giving rise to new <u>species.</u> The theory of evolution states that all organisms alive on Earth today <u>have a common ancestor</u> which lived <u>years ago</u>.

Explanation:

Evolution is one of the fundamental reason of diverse life on Earth today. Principally, this process takes place by changes in genetic elements via mutations and crossing-over. The positive changes (mutations) allow the organism to develop better condition in order to survive in changing environmment. However, if the changes takes place at major scale, it also leads to the creation/development of new species. To explain this further, I have added a photograph where we can see how different organisms were evolved in the history of Earth.

5 0
3 years ago
Three different alleles (c1, c2, and c3) at the c locus exist in a hypothetical population of juniper trees. If the frequency of
prisoha [69]

Answer:

d

Explanation:

When considering the frequency of the potential alleles of a gene in a population, the total must add up to 1. Think of it like percentages. an allele frequency of 0.3 means 30% of the population carry it (out of a possible 100%).

We know that the frequency of c1 is 0.3. Lets take each option and see if it can be true

a) cannot be less than 0.3.  - false. It <em>could </em>be less than 0.3. For example, it could be 0.1, meaning the frequency of allele c3 would be 0.6 (because 0.3 + 0.1 + 0.6 = 1)

b) cannot be greater than 0.3. - false. It <em>could </em>be greater than 0.3. For example, it could be 0.5, meaning the frequency of allele c3 would have to be 0.2 (because 0.3 + 0.5 + 0.2 = 1)

c) is 0.7.  - false. It <em>can't </em>be 0.7, because that would mean that the frequency of c3 is 0. (0.7 + 0.3 = 1)

d) cannot be greater than 0.7. - true. It <em>cannot </em>be greater than 0.7, because  that would mean that the frequency of c3 is 0. (0.7 + 0.3 = 1)

5 0
3 years ago
What is the function of NADPH and ATP in the Calvin cycle?
yuradex [85]

Answer:

The correct option is A. They provide the energy required to build high-energy sugars.

Explanation:

Calvin cycle can be described as the series of dark reactions of the process of photosynthesis.

During the Calvin cycle, carbon dioxide is reduced to glucose. The molecules of NADPH and ATP play an active role in this reaction to occur. The molecules of ATP serve as a source of energy. Whereas, the molecules of NADPH serve as a reducing agent. Electrons are added by NADPH so that carbon dioxide gets converted into glucose.

4 0
2 years ago
Other questions:
  • Long-term marijuana use may result in __________, even long after one stops using.
    7·1 answer
  • In this project, you will observe an insect life cycle. You will see part of the life cycle of a grain beetle. You will begin wi
    14·1 answer
  • The hippocampus, amygdala, and hypothalamus are part of the
    5·1 answer
  • Read each statement and decide what type of ecological interaction it describes.
    15·1 answer
  • What about science is importnat to us?
    13·2 answers
  • Which condition would disturb the hardy-weinberg equilibrium and cause the gene pool to change?
    11·1 answer
  • What is DNA and what is it for
    5·1 answer
  • How does competition affects behavior of species
    14·2 answers
  • Suppose a fern fossil is found between layer Y and layer z during which time range with fern fossil most likely have formed?
    10·1 answer
  • During a procedure called ___, angela's knee pain and joint stress is relieved when her inflamed joint space is punctured with a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!