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
yulyashka [42]
3 years ago
6

The diagram shows a food chain.

Biology
2 answers:
lions [1.4K]3 years ago
8 0

Answer:

D;producer

Explanation:

plants are usually the primary producers

topjm [15]3 years ago
5 0

Answer:

D,Producer

Explanation:

Hope this helps!

You might be interested in
What is true about concerning sources of water pollution
allsm [11]

Answer:

it can result in fish kills and restrictions on human consumption it can change the physiology of fish it can cause long-term alterations of aquatic ecosystems

Explanation:

6 0
3 years ago
Which would you expect to find in both a tree fern (a fern / monilophyte) and a pine tree (a conifer)
scoray [572]

Answer:

yes

Explanation:

because it is trust me

8 0
2 years ago
Each biological species is genetically isolated from other species. why do the species evolve independently?
Nookie1986 [14]
Species evolve independently possibly due to geographical isolations or behavioural isolations.

Geographical isolation includes the isolation of 2 groups of the same species. Since these 2 groups live in different locations, (e.g. a volcanic eruption resulting in a barrier between one side of an ocean and another side of the ocean), they will have different selection pressures in their different environments as well (e.g. one side of the ocean may have more sunlight and thus more underwater plantations than the other side of the ocean). Natural selection will eliminate those with disadvantageous characteristics (e.g. Fishes that only eat plants and nothing else on the side of the ocean with little plantations) with unfavourable alleles, and select for those with advantageous characteristics (e.g. Fishes are able to eat plants and other organic substances as well on the side of the ocean with little plantations) with favourable alleles.

Since the 2 groups have different selection pressures, natural selection will occur in different ways, selecting for and against different types of fishes with different types of alleles. Also, because of the barrier, they are not able to mate with each other, and there are no mixing of genes from one side of the ocean and the other side. They are genetically isolated. As genetic drift occurs over time, their gene pools become different from each other. Thus, they evolve independently.

Hope this helps! :)
7 0
3 years ago
BIG POINTS To whoever answers this 50 POINTS ok Describe how energy is produced from power of water. In your answer, include the
ioda

Hydropower can be harnessed from flowing and falling water. Water stored behind dams and at a height has a lot of potential energy which is converted into mechanical and electrical energy.This water is released gradually and is made to fall under the force of gravity and drive hydraulic turbines and electri­cal generators. Hydropower is also another indirect form of using solar energy. Hydropower has great potential as a supplier of electricity but environmental constraints limit such a development as the generation of electricity by hydro­electric power plants result in pollution and massive ecological disruptions such as land flooding, siltation, eutrophication and adverse effects on flora and fauna. Smaller dams and reservoirs cause less damage but cannot exploit the full potential of this energy resource. Planning environmental impact assessment and construction of a hydroelec­tric power plant takes many years and the high initial capital investments are also limiting factors in the development of hydropower. The development cost of hydroelectric power plants can be reduced by developing low cost turbines and generators, involving public participation in the development and opera­tion of the project and using efficient environmental friendly technologies.

4 0
3 years ago
Chemically, what is an important factor that enables enzymes to separate the strands of dna without breaking them?.
alekssr [168]
Bonds between the strands are relatively weak hydrogen bonds, whereas bonds within the strands are relatively strong covalent bonds.
3 0
2 years ago
Other questions:
  • The anicient bacteria is in what domain
    13·1 answer
  • HELPPP
    7·1 answer
  • Describe the differences in how the chromosomes line up in the middle of the cell during metaphase 1 of meiosis and metaphase of
    9·1 answer
  • If water were flowing from area a to area b via osmosis, through a semipermeable membrane, we might expect area b to be ________
    10·1 answer
  • The human mitochondrial genome encodes only 22 tRNAs. This limited array of tRNAs can read the 64 possible triplet codons throug
    7·2 answers
  • Exposing skeletal muscle fibers to ________ removes ions and ATP from the cells and disrupts the troponin-tropomyosin complex su
    9·1 answer
  • What is number 9 and 11
    13·1 answer
  • 01) How is aerobic respiration similar to combustion?
    11·2 answers
  • Which scenario describes the damage caused by a tornado? a flooded city on the coast with trees damaged by high winds a section
    7·2 answers
  • Johanna learns that the Law of Conservation of Energy states that energy is conserved, never lost. Which of the following best d
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!