Write an essay on ecosystem productivity

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Answer 1

Answer: A ecosystem productivity is a rate of generation of biomass.’’I know this because it states.”In economy productivity refers to the rate of generation of biomass in an economy.This shows that the economy its usually expressed in units of mass per unit.

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A student conducts an experiment to determine how the amount of water given to a plant affects its growth. What is the dependent variable for this experiment? a. the amount of water b. the height of the plant c. the amount of sunlight d. the amount of soil Please select the best answer from the choices provided

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Answer: b. the height of the plant.

In an experimental set up an independent variable is the one which can be manipulated or change to observe the effects of such changes or manipulation on dependent variable. For example, plant growth is a dependent variable because it is dependent on independent variables such as amount of sunlight available, amount of fertilizers and water provided.

In this experiment, it is to be determined that how the amount of water given to a plant affects its growth. Here, water is an independent variable which can be change in the experiment and the affect of change can be observed on plant growth which is a dependent variable. A height represents the growth of the plant therefore, height of the plant is the dependent variable.

I think the answer to this is the height of the plant. The amount of water is the independent variable and the amount of sunlight and soil arent included in this experiment.

8. In an attempt to breed winter barley that is resistant to barley mild mosaic virus, agricultural researchers cross a susceptible domesticated strain with a resistant wild strain. The F1 plants are all susceptible, but when the F1 plants are crossed with each other, some of the F2 individuals are resistant. Is the resistance allele recessive or dominant? How do you know?

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Answer:

The resistance allele is recessive

Explanation:

According to Darwin's pea experiment, the recessive trait appeared after a few generations.

Here in this case too the resistant individuals appeared after the first generation. This also implies that the offspring of first generation must be carrier of this recessive trait.

Let the susceptible domesticated strain trait be represented by "S"

and the recessive resistant wild strain trait be represented by "s"

Then,

F1 generation

SS * ss

Ss, Ss, Ss, Ss ------ All are heterozygous susceptible individuals

F2 generation

Ss * Ss

SS, Ss, Ss, ss

ss shows reappearance of resistant wild trait.

Hence, the resistance allele is recessive.

Why is it important when it comes to completing a child abuse assessment at the onset of mental health counseling as well as continuing to assess for this throughout the course of treatment.

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Answer and Explanation:

Mental or Psychological health experts need to work upon the subjective, social, and enthusiastic working of customers.

In the ongoing years, there had been the emotional increment in instances of youngster manhandles which has offered ascend to sick psychological well-being prompting some significant issues in conduct and communication with the general public. Therefore, another term to portray emotional wellness guiding has been instituted as Abuse Focused Therapy.

This treatment centers around the first misuse setting as one of the key issues in treatment, relating this injury to later and current encounters and conduct.

This point of view accept that youth misuse and a disregard around then leave a blemish on a person for an amazing duration and that restorative thoughtfulness regarding these occasions will significantly affect current mental working.

Proficient journals that explicitly center around child misuse and disregard or potential exploitation are another significant advancement since they keep the field refreshed on new research.

Fossils give evidence of continental drift False
True

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False it has nothing to do with continental drift

Snake venom contains a mixture of enzymes, which include phospholipase that break down cell membranes, proteinases that destroy proteins, as well as amino acid oxidases and nucleotidases that break down the monomers for protein and DNA synthesis, which is why they can be so deadly. If you were bitten by a venomous snake you may be treated with an antivenom. In addition to antibodies that help your immune system recognize and fight the foreign molecules, what else does the antivenom most likely contain

Answers

Answer:

The correct answer is - Venom enzyme inhibitors.

Explanation:

The snake venoms are the complex mixtures of phospholipase A2s, disintegrins, serine proteases, C-lectins, and metalloproteases, and others. The snake venom phospholipase A2s (svPLA2s) enzymes found in most of the families of venomous snakes that cause anticoagulant effects, cardiotoxicity, neurotoxicity, and cytotoxicity, and other effects.

In antivenom, there are Venom enzyme inhibitors other than antibodies that help inneutralizing these enzymes by weakening or inhibiting these toxic actions.

Based on the endosymbiotic theory, what cell would result from the endosymbiosis of a cell with a cyanobacterium?a eukaryotic cell that can make its own food
a prokaryotic cell that can make its own food
an aerobic bacterium
an anaerobic bacterium

Answers

Endosymbiotic theory or symbiogenesis is the evolutionary theory. A eukaryotic cell that can make its food will arise from a cyanobacterium. Thus, option a is correct.

What is an endosymbiotic theory?

Endosymbiotic theory is the evolutionary theory of the origin of the eukaryotic organism from a prokaryote cell. It was formulated based on the mitochondrial DNA and the chloroplast organelle in the plant.

According to the symbiogenesis theory chloroplast and mitochondria were once free-living that got phagocytized by another cell. So, if a cyanobacterium is engulfed then the eukaryotic cell will have the power to produce its own food.

Therefore, the eukaryotic autotroph will be produced from the cyanobacterium.

Learn more about endosymbiotic theory here:

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Answer:

Explanation: a eukaryotic cell that can make its own food

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What are two main categories of ecosystems

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What is the nucleotide sequence of the dna strand that is complementary to 5'- atcgcaactgtcacta-3'? a 5'-tagcgttgacagtgat-3' b 5'-uagugacaguugcgau-3' c 5'-tagcgttgacagtgat-3' d 5'-tagtgacagttgcgat-3' e 5'-atcactgtcaacgcta-3'?