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jek_recluse [69]
2 years ago
15

As cold, briny water from the antarctic circulates to the equator, it warms and rises. as it does, this upwelling carries nutrie

nts that produce ____ billion tons of phytoplankton that are eaten by fish and birds. those that are not eaten die, and fall back to the ocean floor, carrying nutrients with them.
Biology
2 answers:
allsm [11]2 years ago
8 0
<h2>45 Billion Phytoplankton </h2>

Brackish water is water that has extra salt than original water. This may appear from the crossing of seawater by fresh water that may occur in brackish specimen aquifers.  The nutrients that produce 45 billion ton phytoplankton. The phytoplankton is bacteria that is a significant autotrophic element of the plankton community and a fundamental component of water that basin ecosystems. Though it is an essential source of food for larger animals as being the first form of food chain.

nataly862011 [7]2 years ago
3 0
The answer is one (1) billion tons of phytoplankton at any one time. Annually, its recorded that there is approximately 45 billion tons of phytoplankton in the ocean. Other than being a source of food for fish, they are critical in the carb9n cycle. This phytoplankton incorporates 45–50 billion tons of inorganic carbon into their cells and are the largest source of atmospheric oxygen.
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In grasslands, goats are prey for both foxes and tigers. If the population of goats decreases because of natural causes, what ar
Andreas93 [3]
The following option are correct:
1. There will be interspecific competition between foxes and tigers.
Competition for food between animals of different species is called interspecific competition while that between the same animal species is called intraspecific competition. 
2. The energy received at the tropic level of carnivores will be less than the usual amount.
The energy received at the trophic level become reduced because the amount of food available for the carnivores has been reduced.
3. There will be decreased biomass at the trophic level of carnivores.
Decrease biomass will occur at the trophic level of carnivores because, those carnivores that can not survive the food reduction problem will die off. 
4 0
2 years ago
Read 2 more answers
If you wanted to stay 20 feet below the surface of the water, what kind of buoyancy would you need to have? Positive, Negative o
Allushta [10]

Answer:

It depends what kind of water.

Explanation:

Salt water:

You would need a negative buoyancy.

Fresh water:

You would need a neutral buoyancy.

Please let me know if I am wrong!

3 0
1 year ago
Which of the following are characteristics of archaeal cell membranes that probably help them survive at very high temperatures?
n200080 [17]

Answer:

  • <u>Option-(B,C):</u>

Ether-linked lipids, and Membrane mono-layers,

Explanation:

  • <u>Archaeal cell membrane:</u>

The archaeal cell membrane is able to resist any severe environmental factors, as the cell is able to live in the most extreme conditions of temperature and are able to perform there various cellular function in such way just because of having a double protective structure in there cell wall or membrane. As the fatty acids present inside the membrane are in connection to the outer lipid molecules(lipids) present in the archaeal cell membrane.

7 0
2 years ago
Read 2 more answers
Punnett square are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring
IrinaVladis [17]

Answer:

The correct answer would be Pp.

The genotype of one parent is PP. Thus, it will produce only one type of allele, that is, P.

Similarly, the genotype of another parent is pp. Thus, it will produce only one type of gamete, that is, p.

The cross would produce offspring with only one type of genotype, that is, heterozygous Pp.

The phenotype of all the offspring will be purple as it is a dominant trait.

3 0
1 year ago
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The NET reproduction per individual per unit time (r) is _____ per mouse per month in a population of 1,000 mice where 500 mice
Phantasy [73]

Answer:

0.1

Explanation:

The Net Reproduction per individual per unit time (r) can be calculated as (births-deaths)/population size

Given that:

Population size of mice = 1,000; Birth = 500; Death = 400,

Net reproduction rate (r) = (births-deaths)/population size

r = (500 – 400)/1000

r = 100/1000

r = 0.1

The Net reproduction per individual per unit time (r) is 0.1

3 0
2 years ago
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