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
Svetlanka [38]
3 years ago
15

- 7th Grade Work -

Biology
2 answers:
OLEGan [10]3 years ago
7 0
We depend on the food chain and lower tier animals in order to feed other animals. It both keeps the ecosystem populations balanced whilst helping out all of the organisms
Nat2105 [25]3 years ago
4 0

Explanation:

Human health ultimately depends upon ecosystem products and services (such as availability of fresh water, food and fuel sources) which are requisite for good human health and productive livelihoods. Significant direct human health impacts can occur if ecosystem services are no longer adequate to meet social needs.

You might be interested in
How does nuclear fission produce energy?
mart [117]
The answer should be A. A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
5 0
3 years ago
Read 2 more answers
What is an explanation of why producers are always found at the lowest trophic level?
Softa [21]
I would say C because there are many more types of plants than animals.  Plants convert light energy yes. 
7 0
3 years ago
Read 2 more answers
What main hormone that is released by the female ovaries is?
Nadya [2.5K]

Answer:A

Explanation:

8 0
2 years ago
Read 2 more answers
Plasmids are small circular DNA molecules found in bacteria that replicate separately from chromosomes. Why are plasmids essenti
oksano4ka [1.4K]

Answer:

DNA from a gene of interest can be inserted into a plasmid, then the modified plasmid can be inserted into a bacterial cell to replicate a gene of interest many times.

Explanation:

Plasmids are the extra-chromosomal circular DNA present in bacterial cells. Plasmids are able to replicate themselves independent of genetic DNA. Their ability to self replicate allows them to maintain themselves in the bacterial cells. This is why plasmids are used as cloning vectors in recombinant DNA technology.

A gene of interest is isolated from the donor cell and is inserted into the plasmid. The recombinant plasmid is introduced into bacterial cells where it replicates the ligated desired gene and allows the gene cloning. For example, the human insulin gene is ligated with plasmid and the recombinant plasmid is introduced in <em>E. coli</em> where it replicates the human insulin gene and allows the production of desired copies of the gene.

4 0
3 years ago
What is true about scientific knowledge?
Elza [17]
It's C! It changes as new evidence is found.
8 0
3 years ago
Other questions:
  • Explain how a starfish's body plan and anatomy's function very essential to its survival.
    6·1 answer
  • What is a jet stream?
    12·2 answers
  • What is sulfamethoxazole trimethoprim used to treat?
    9·1 answer
  • What structure surround and protect the cell?
    13·1 answer
  • Im algae and plants,photosynthesis happens in
    12·1 answer
  • In allport's trait theory, the most common traits are _______ traits.
    14·1 answer
  • Jayden created a cell model using a glass bottle with a cork. he said that the cork could be opened to eliminate waste material
    5·2 answers
  • Name the most important mineralocorticoid secreted by the adrenal cortex
    5·1 answer
  • the long-distance runner is running at a constant speed of 5 m/s. how long does it take the runner to travel 1 km?​
    7·1 answer
  • How can you drop two eggs the fewest amount of times, without them breaking?<br> -_-
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!