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
forsale [732]
3 years ago
12

What do all ecosystems have ?

Biology
1 answer:
Phoenix [80]3 years ago
5 0
I pretty sure that it include both biotic and abiotic. But "C" is wrong. Now your answers are between "A,B and C"
You might be interested in
Anything that is built or created in an organized manner
Alex_Xolod [135]

Answer:

structure

Explanation:

6 0
3 years ago
Read 2 more answers
• Water molecules attracted to _____________ objects (because of their polarity and hydrogen bonds)
Katena32 [7]

Answer:

• Water molecules attracted to other objects (because of their polarity and hydrogen bonds)

Explanation:

3 0
4 years ago
Second page <br> only one person understand
liraira [26]
Ummm is there a picture
7 0
3 years ago
In descriptions of the superficial anatomy of the human body, the neck is the __________ region.
FromTheMoon [43]
The neck is the Cervicis.

Hope this helps
6 0
3 years ago
A researcher has developed two stains for use with seed plants. One stains sporophyte tissue blue; the other stains gametophyte
sukhopar [10]

Answer:

A) The pollen grains will be pure red.

Explanation:

Plants have alternation of generations, this means that there are two different stages in their life-cycle: a sexual haploid (n) phase and an asexual diploid phase (2n). These phases occur in different individuals, so there is an haploid plant called gametophyte that carries gametes and after fecundation, it will rise a diploid sporophyte (asexual).  

In seed plants, the sporophyte is the plant that we normally see, and the gametophyte is reduced into an organ of the sporophyte. The male gametophyte is the pollen that is produced in the sporangium in anthers (parts of sporophyte).  When a pollen grain fecundes a female gametophyte (egg), it will produce a diploid embryo or new sporophyte.

Therefore, if the researcher exposes pollen to both stains, these grain will stain red, because red stain identifies gametophyte tissue.

3 0
3 years ago
Other questions:
  • How many chambers make up the heart?
    9·2 answers
  • The diagonal arrow of a cladogram shows us that we are moving _________ in time.
    8·2 answers
  • The theory of plate tectonics includes blank types of plate boundaries.
    11·1 answer
  • The chemical reaction for photosynthesis is: 6CO2 + 6H2O → C6H12O6 + 6O2 The chemical reaction for cellular respiration is: C6H1
    14·2 answers
  • What are the four (4) requirements for natural selection to occur?
    7·1 answer
  • A cell is placed in a container of salt water that has 42% salt and the cell has 15% salt inside:
    9·2 answers
  • HURRY PLZ
    14·1 answer
  • What is an atomic mass of an atom referring to?
    15·1 answer
  • HELP FAST!!!!!!!!<br> Explain how a species' inability to adapt may contribute to its extinction
    8·2 answers
  • 1. The graph shows the world human population size and growth rate over time. How are the two sets of data related to each other
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!