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
Ede4ka [16]
3 years ago
15

[25 points] what type of organism is the least numerous in a marine ecosystem? (producer, primary consumer, secondary consumer,

etc.) and why?
Biology
1 answer:
Arisa [49]3 years ago
6 0

Answer:

secondary consumer

Explanation:

They are the least because they play a less important role in the ecosystems.

You might be interested in
People continue to have strong opinions triggering ongoing debates about stem cell research. Organize the points as either the p
JulsSmile [24]

Answer:

<u>Pro:</u>

May hold answers to cure various diseases including Alzheimer's and Parkinson's - these may be answers to various diseases that are not able to cure.

Requires a small number of cells because of the fast replication rate - these are able to produce a high amount of cells in the lab as they are able to replicate faster.

Medical benefits such as regenerating organ tissue and therapeutic cell cloning

<u>cons:</u>

ethical controversy over use of stem cells from lab fertilized human egg - there is an ethical controversy around the use of lab fertilized human egg

unproven treatments often come with high rejection rates - these researches provide uncertain results and not tested and easily affected so the rate of rejection is high

The cost can be prohibited for many patients - these require high cost and can not be in the budget of every patient.

8 0
3 years ago
Read 2 more answers
Which enzymes are needed to produce recombinant plasmids to be used in gene transfer?
irina [24]
The answer is D. For producing recombinant, first you need to cut the insert part and vector part to get the same end by using restriction enzyme. Then using DNA ligase to bind these two parts to get a new plasmids.
4 0
3 years ago
Fill in the blanks
BabaBlast [244]
The central nervous system (CNS), which is made up of the brain and the spinal cord, and the peripheral nervous system (PNS), which is comprised of nerves and ganglia (small concentrations of grey matter).

The brain sends messages to the peripheral nerves in the body via the spinal cord, these have control of muscles and internal organs.
8 0
3 years ago
Which of the following samples will have the greatest volume at STP?a. 22 g Neb. 22 g Hec. 22 g O2d. 22 g Cl2 e. All have the sa
sammy [17]

Answer:

22g of He

Explanation:

Volume of gas at STP is given as :

Volume occupied(dm³) = number of moles x 22.4dm³mol⁻¹

In order to solve this given problem, we would first find the number of moles from the different masses of atoms and molecules given.

Number of moles = \frac{mass }{Molar mass}

Now, let us obtain the molar mass of the given atoms and elements:

For Ne; molar mass is the atomic mass = 20gmol⁻¹

      He = 4gmol⁻¹

      O₂ = (16 x2)gmol⁻¹  = 32gmol⁻¹

      Cl₂ = (35.5x2)gmol⁻¹ = 71gmol⁻¹

Number of moles of Ne = \frac{22}{20} = 1.1mol

Volume occupied by Ne at STP = 1.1 x 22.4 = 24.64dm³

       

Number of moles of He = \frac{22}{4} = 5.5mol

Volume occupied by He at STP = 5.5 x 22.4 = 123.2dm³

Number of moles of O₂ = \frac{22}{32}  = 0.688mol

Volume occupied by O₂ at STP = 0.688 x 22.4 = 15.4mol

Number of moles of Cl₂ = \frac{22}{71} = 0.3099mol

Volume occupied by Cl₂ at STP = 0.3099 x 22.4 = 6.94dm³

5 0
3 years ago
Red, green &amp; brown algae are included in what kingdom
lisabon 2012 [21]

Answer:

the all type of algae are included in kingdom plantae

5 0
2 years ago
Read 2 more answers
Other questions:
  • a patient has diabetes a disease that causes high blood cuter levels which macromolecule will a dietician monitor the most close
    13·2 answers
  • How many germ layers do flatworms have?
    14·2 answers
  • Fish respiratory systems exchange gas and receive oxygen at the gills. This oxygen then enters the bloodstream and is pumped thr
    12·1 answer
  • Which Organelle is important because it contains the genetic information for a cell?
    10·1 answer
  • 1. How do you calculate magnification on a microscope? PLEASE HELPPP MEEE, lol
    8·1 answer
  • Instead of using a family tree, scientists use a(n) _____ tree to track the evolutionary history of a species. inheritance evolu
    5·2 answers
  • What two processes fuel the carbon cycle?
    12·1 answer
  • How is nuclear fuel used to generate electricity?
    12·1 answer
  • A student is conducting their science experiment on the effect of caffeine on dogs. He has 3 groups of test subjects. The 1st gr
    7·2 answers
  • Which factor is needed for both thunderstorms and hurricanes to form?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!