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
Anarel [89]
3 years ago
15

Early life may have first evolved in what zone ?

Biology
1 answer:
Tema [17]3 years ago
3 0

Answer:

africa

Explanation:

You might be interested in
Explain why a hydrogen atom can become either an ion or a part of a molecule
AleksandrR [38]
Because a atom can join my nuts and I will have 3 nuts.?YOUR WELCOME JK
8 0
4 years ago
One of the roles of ecological succession is to allow species with different adaptations to interact. Ecological succession occu
KIM [24]

Answer:

D overlap for a variety of species.

Explanation:

During ecological succession, a sequence of changes occurs in a community at a temporal and spatial level. Local colonizations and extinctions occur while ecosystems evolve at a more complex level.  

Ecological succession occurs in <u>stages</u>. The first stages are represented by communities of simple trophic levels and few species. With time, as the communities go through different stages, they transform into more complex ecosystems, that are much richer in diversity, and showing more interaction among the different species that compose it.  The final stage is known as the climax and represents a mature and stable system.

While the community is going through these changes, many species get extinct while many others get to emerge and survive. It occurs overlapping of different taxonomic groups that interact with each other competing or beneficiating other groups.  

3 0
4 years ago
What are tube feet?
Margarita [4]

Answer:

Explanation:

(in an echinoderm) each of a large number of small flexible hollow appendages protruding through the ambulacra, used either for locomotion or for collecting food and operated by hydraulic pressure within the water-vascular system.

6 0
4 years ago
3. Organisms that are NOT autotrophs
Zolol [24]

Answer:

The answer is D.

Explanation:

Autotrophs are known as producers which gets energy from sunlight and produces their own food.

3 0
3 years ago
A fruit fly of genotype B R/b r is testcrossed with b r/b r. In 84 percent of the meioses, there are no chiasmata between the li
Citrus2011 [14]

Answer:

4 percent (4%)

Explanation:

A single crossover occurs between two (non-sister) chromatids belonging to homologous chromosomes. In this case, 16 percent of the meioses have a single crossover, thereby it will produce 8 percent of the chromosomes with the original (parental) combination in the progeny and the remaining 8 percent should be recombinants. From this result, it is reasonable to conclude that half of these recombinants should be 'Br' (and the other remaining 4 percent should be recombinants 'bR'), and therefore the answer is 4 percent (4%).

5 0
3 years ago
Other questions:
  • A well-designed experiment can be replicated by others <br><br> true or false
    6·2 answers
  • What is the most common lipid characterized by a four-ring core structure found in animals?
    10·1 answer
  • What is the best definition for hypothesis?
    5·2 answers
  • How does putting salt on frozen roads make the roads less icy?
    10·2 answers
  • The scientific method is limited to investigating phenomena that are
    5·1 answer
  • Why should extra precautions against sun exposure be taken when boating?
    8·1 answer
  • The mass of an object doubles. What happens to the gravitational force between it and another object whose mass stays the same,
    15·1 answer
  • Answer number 6 asfast as possible pls
    11·2 answers
  • 9. Iron (Fe) is an element found on the Periodic Table. Iron's atomic number is 26.
    9·1 answer
  • which layer of the dermis contains the capillaries, lymphatic vessels, and sensory nerve fibers that supply the epidermis?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!