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
andre [41]
2 years ago
10

Who first proposed the theory of continental drift

Biology
2 answers:
kondaur [170]2 years ago
8 0

Answer:

d

Explanation:

do your research

Harman [31]2 years ago
4 0
<span>Alfred Wegener first proposed the theory

</span>
You might be interested in
Why an ecosystem requires a constant input of energy
pychu [463]
The ecosystem requires a constant input of energy because energy cannot be stored. The enrgy always gets converted for supporting life in the ecosystem. Some amount of energy is also lost during this conversion. So if there is not a constant supply of energy, then the ecosystem will ultimately breakdown. In case of humans, the energy is received by consuming food. The energy of the food geets converted to the enrgy that helps a human being to complete his daily chores. So energy is being lost at every step. To regain this energy the humans have to eat food regularly. This way the humans need a constant supply of energy to survive. It is the same in the case of all living things in the ecosystem.
3 0
3 years ago
Why is 4 the correct answer to number eighteen ? Explain why and please answer this !!
swat32

because that is where the sperm divide to multiply

4 0
3 years ago
Using a parental dna strand as a template, a new dna strand is synthesized by
ArbitrLikvidat [17]
A is the answer
a replication fork
8 0
3 years ago
Which structure is at work when the body deals with reflex actions?
Ne4ueva [31]

Answer:

spinal cord

Explanation:

Reflex actions are the involuntary action of the body in response to a signal or stimulus. The reflex action of body is controlled by spinal cord.

Reflex arc acts as a neural pathways that transmit impulse to the brain via spinal cord. Sensory neurons pass through synapse in the spinal cord which activate spinal motor neuron to act immediately without any delay.

Immediate taking off hand from hot oven is an example of reflex action, which is regulated by spinal cord.  

Hence, the correct option is spinal cord.

 

5 0
3 years ago
Read 2 more answers
Lesson 3 : wrapping up Unit 3
musickatia [10]

Answer:

  • 9 The water levels are constant in estuaries

Explanation:

  • 10.  Black sands are found when tides are particularly higher.
  • 11. Both tides and currents are predictable movements of water.
  • 12. The salinity of brackish water can vary with the tides.
  • 13. The barnacles attach themselves to seaweed and feed on it.
  • 14. Ocean helps to lessen global warming by absorbing lots of carbon dioxide.
  • 15. Five Solomon islands have disappeared because of erosion and increasing seas.
  • 16. Bottom-feeding fish are not part of the benthic community.
3 0
3 years ago
Other questions:
  • ____________ refers to the rule that populations of birds and mammals living in warm, humid climates have more melanin (and ther
    5·1 answer
  • Which of the following are functions of lipids? Choose three correct answers
    15·1 answer
  • Which statement is true about lethal alleles?
    13·2 answers
  • What is 32 meters/10milimeters
    12·1 answer
  • Which terms below are associated with communication between neurons?
    10·2 answers
  • Describe how a Newton's cradle illustrates the conservation of energy.
    12·2 answers
  • Even though RSV infection in infants is common, a vaccine does not currently exist. Imagine you are designing a recombinant vacc
    14·1 answer
  • 1.Which of the following appeared on Earth most recently?
    5·1 answer
  • This cell has has cell wall and many organalles , including mitochondria,a nucleus, a vacuole, and several chloroplasts
    11·1 answer
  • _____inherited traits that increase an organisms chance of survival, also determine an organism’s niche.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!