What are two main abiotic factors that affect organisms in marine ecosystems? A. Oxygen level and water temperature B. Predators and competition C. Salinity and water temperature D. Predators and food availability

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Answer 1
Answer:

Answer:

dear user the answer is option A.oxygen level and water temperature and C.salinity and water temperature.

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Answer 2
Answer:

Answer:

It would be A

Explanation:


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What are examples of positive and negative control of the lac operon? Answer 1. Lactase, which breaks down lactose, is an example of positive control, and cAMP, which binds to CRP, is an example of negative control. 2. cAMP, which binds to CRP, is an example of positive control, and lactase, which breaks down lactose, is an example of negative control. 3. Lactase, which breaks down lactose, is an example of positive control, and glucose, which reduces cAMP, is an example of negative control. 4. Glucose, which reduces cAMP, is an example of positive control, and lactase, which breaks down lactose, is an example of negative control.
Plants transfer carbon in the carbon cycleA. through assimilation of carbon from the soil.B. through fixation of carbon in the soilC. when carbon transpires from their stomataeD. when they are eaten by animals.
The blank process helps fuel your metabolism with oxygen
Describe how the body’s mechanisms maintain homeostasis?
The name for continents in one landmass surrounded by gigantic ocean

PLEASE HELP AND EXPLAIN (NO LINKS OR NO RANDOM ANSWERS FOR POINTS)

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The dust may have caused plants to die which led to herbivores dying of starvation then the carnivores slowly started to run out of other dinosaurs to eat and they became extinct. (I hope this made sense and helped some!)

Explain how animal like plant like are similar and different

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Answer: The main way animal-like protists differ from plant-like protists is in the way they get energy. Animal-like protists are heterotrophs. ... Plant-like protists, on the other hand, are autotrophs. They can make their own energy from the sun or other sources just as plants can.

Explanation:

Answer:

Animal-like protists and plant-like protists are both eukaryotic and live in moist environments. All animal-like protists are heterotrophic and eat other organisms. Most plant-like protists are autotrophic. Some can be both autotrophic and heterotrophic, while a few are completely heterotrophic. All animal-like protists are unicellular, while plant-like protists can be unicellular, multicellular, or live in colonies. Most animal-like protists can move, while only some plant-like protists can move.

Explanation:

correct on edge and sample exp<3

What are not properties of enzymes

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PLEASE MARK IT BRAINLIEST

1) THEY ARE NOT SOLID

Answer:The property which is not characteristic of enzymes is to be predicted. Concept Introduction: Enzymes are proteins. ... The important factors affecting enzyme activity are enzyme concentration, substrate concentration, temperature and pH.

Explanation: above is the explanation

Which of these would most likely happen if there is a sudden increase in the number of sunspots?A. summers would become colder
B. Earth's tilt on its axis would decrease
C. Earth's climate would become warmer
D. length of days and nights would increase

Answers

Which of these would most likely happen if there is a sudden increase in the number of sunspots?

C. Earth's climate would become warmer

The correct answer is option C.

The sudden increase in sunspots will make the Earth more warmer because the more the sunspots, more energy is delivered to the atmosphere. This increases the global temperatures of the Earth.

Answer:

The correct answer is C.

Explanation:

Sunspots increase and decrease through an average cycle of eleven years.

There is a debate of how much this sunspot would affect the earth`s temperature, the earth`s climate is sensitive to very weak changes in the Sun`s energy. During maximum sunspot activity, there`s a very slight increase in the energy output of the sun. Ultraviolet radiation increases during high sunspot activity, and this can have a large effect on Earth`s atmosphere.

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After Earth formed, its surface cooled and solidified. Volcanoes began spewing gas into the atmosphere. Which two gases made up most of Earth's atmosphere during this period?​

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Answer:

Ammonia and Carbon Dioxide

Explanation:

It is Ammonia and Carbon dioxide, stage 2 of the atmosphere. Little or no traces of oxygen or Nitrogen.

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It contained methane and co2.

For the following biomolecular interactions, choose the main weak force interactions that mediates them. Interaction between hydrophobic (nonpolar) amino acid side chains van der Waals interaction
Repulsion between negatively charged backbone of DNA double helix van der Waals interaction
Interaction between water and carbonyl oxygen of guanine hydrogen bond

Answers

Answer:

Interaction between hydrophobic (nonpolar) amino acid side chains is due to hydrophobic interactions.

Repulsion between negatively charged backbone of DNA double helix is due to electrostatic repulsion forces.

Interaction between water and carbonyl oxygen of guanine is due hydrogen bonding

Explanation:

The hydrophobic effect refers to the tendency of non-polar substances forms aggregates in an aqueous solutions in order to avoid interactions with water molecules. This results in a favorable entropy increase.

For non-polar amino acids, hydrophobic interactions are important in stabilizing their structure wherein they are densely packed within the core of a protein while those with with polar groups are found in the exterior.

The phosphate backbone of DNA is negatively charged. Since like charges repel, therefore, electrostatic repulsion forces of the ions are responsible the repulsion of the backbone DNA double helix.

Hydrogen bonds are formed between electronegative oxygen atoms and hydrogen atoms of neighboring molecules due to the partial negative and positive charges on each of the atoms.

This hydrogen bonding is responsible for the interaction between water and carbonyl oxygen of guanine as the hydrogen atoms of the water molecules are attracted to the oxygen atoms of the guanine molecules due to the partial charges on each of the atoms.

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