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
kari74 [83]
4 years ago
9

Microscopic plants called algae grow inside the top layer of sea ice in the Antarctic if enough sunlight reaches that layer of i

ce and enough seawater, which contains nutrients, reaches that layer after splashing onto the surface. Even though moderate snow cover reduces the sunlight that filters into the top layer, sea ice with moderate snow cover typically contains even more algae in the top layer than does sea ice with less snow cover.
Which of the following , if true most helps to explain the apparent discrepancy?


(A) As the weight of accumulated snow forces ice lower in the water, more seawater splashes onto the surface and seeps through the snow.

(B) Seawater in the Antarctic often contains higher concentrations of nutrients than does seawater in more temperate regions.

(C) As the air temperature around sea ice decreases during the winter, the likelihood decreases that snow will fall and thus add to any existing snow cover.

(D) The nutrients on which algae rely are common in seawater throughout the Antarctic.

(E) More sunlight filters through a layer of ice than through an equally thick layer of snow.
Biology
1 answer:
MrRa [10]4 years ago
5 0

Answer:

The correct answer is: (A).

Explanation:

  • In the question, it is mentioned that the algae can grow under the conditions of "enough sunlight" and "enough nutrients".
  • Sunlight reaches the algae, by first falling on the surface made up of ice and snow and then refracting from there into the top layer of the ice where the algae grows.
  • However, the capability of both snow and ice to reflect sunlight is far more than that of refracting sunlight.
  • Therefore, the amount of light received by the algae is similar in absence or presence of the layer of snow on the top layer of ice.
  • However, on deposition of snow on the layer of the ice, the weight of the ice increases and it sinks below into sea water.
  • This allows more nutrient rich sea water to percolate into the ice and reach the algae.
  • The algae receive more nutrients from the sea water and hence is capable undergoing better metabolism and growth.
  • Hence, more algae are produced under such a situation.
You might be interested in
How are we affected by the pollution that we continuously create
Ede4ka [16]

We are affected because the clean air that was there is dirty carbon dioxide that we cant breathe in,so we suffer from lack of oxygen and that might kill us and harm our youth.

5 0
4 years ago
If a haploid cell has 16 chromosomes in its nucleus, how many would be present in the diploid state?
TEA [102]
16 x 2 = 32

Since chromosomes in the nucleus exist in pairs, human body cell contains 46 chromosomes arranged in 23 pairs.
Gametes are haploid, so their nucleus only contains a single set of 23 unpaired chromosomes.
3 0
4 years ago
What weight of Tris-HCL (MW=121) is required to prepare 2L of a 15% w/v solution?
podryga [215]

Explanation:

Percentage w/v means that weight of solute present in 100 ml of a solution. Hence, 15% w/v means that 15 gram of solute per 100 ml of solution.

Hence, for 2 L (or 2000 mL) preparation the amount of mass will be calculated as follows.

                 \frac{15 g}{100 ml} \times 2000 ml

                  = 300 g

Thus, we can conclude that weight of Tris-HCL required is 300 g.

7 0
4 years ago
Write the names of the main taxa,putting them in order from most specific to least specific
Anna007 [38]

Answer: In traditional Linnean taxonomy the seven major taxonomic groups are in order from least specific to most specific) Kingdom, Phylum, Class, Order, Family, Genus and Species. Modern taxonomy categorizes the six kingdoms into three domains.

Explanation:

6 0
3 years ago
"1. which organelles work together to transfer energy (from solar to glucose to atp?
Lyrx [107]
The answer is chloroplasts and mitochondria.

<span>When solar energy in the form of sunlight reaches a leaf of a plant, it passes through the leaf to chloroplasts. Chloroplasts contain pigment chlorophyll which is excited by light. As the result, </span>a series of chemical reactions occur in the chloroplasts and carbon dioxide and water are converted into glucose and oxygen. Now, glucose is broken down and transported into mitochondria where through different processes (Krebs cycle and electron transport chain) energy is produced in the form of ATP.<span>
</span>
6 0
4 years ago
Other questions:
  • The patient is a 63-year-old gentleman diagnosed with rectal cancer, who had a resection of the cancer performed. he now present
    8·1 answer
  • Sand dunes delelop due to
    12·2 answers
  • Which phase occurs directly after S phase
    9·1 answer
  • Shane chose a nonfiction book about styles of dress during the 1920s. It contained factual stories, information, and pictures of
    8·2 answers
  • What is the dependent variable in this statement? " Pools with dark pool tile heat up faster (i.e., have a higher temperature) i
    15·1 answer
  • Cuantos son las etapas de la nutrición. Define cada una de ellas.
    15·1 answer
  • How are checkpoints currently behaving in sally cancer cells
    10·1 answer
  • 3.1<br>Suggest which leaf carries out more photosynthesis and explain why.<br>​
    14·1 answer
  • Capital of the vijanyana empire,​
    15·2 answers
  • What is the written description of Hydrolysis?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!