All categories

3 years ago

If someone adds millions of small fish to a lake , how would the number of big fish change?

Biology

2 answers:

Bond [772]3 years ago

4 0

The big fish would have more to eat, so they would produce more fish because they have more food to feed them with.

Pepsi [2]3 years ago

3 0

Well, if the big fish are predators, then more food for them and their population would increase greatly. If the big fish and small fish have the same type of food, then that means that the big fish, hypothetically, would have millions of new contenders for their food source. That means that it's very likely that many of those big fish would die out.

You might be interested in

#12 How do you think humans fit in to an ecosystem? Explain by giving an example.

Westkost [7]

Answer:

Like all organisms, humans compete with other species for basic needs in an ecosystem. Humans usually succeed because they have developed technology to help them. ... Humans have also introduced new elements to ecosystems, such as pollution. Pollution can affect all of the organisms in an ecosystem.

Explanation:

8 0

3 years ago

A few seconds after touching the Mimosa pudica plant, its leaflets fold together. It takes about 10 minutes or more for the plan

fredd [130]

Answer:

cells suddenly become flaccid after stimulation because of the loss of K+

Explanation:

Nastic responses are non-directional movements of parts of plants in response to diffuse stimuli. The closinf of leaves of Mimosa pudica when touched is a type of haptonastic response. These movements are brought about by turgor pressure changes of the leaf and the petal bases. At the bases, there are pressure sensitive swellings called pulvini which through loss of turgidity cause nastic movements.

According to research, cells go through an efflux of potassium (K) which leads to the reduction of turgor. Direct quote on Reed-Guy et al. (2017)'s paper "This mechanism is initiated when a stimulus causes an efflux of potassium within the leaf, creating a loss of turgor pressure, which closes the leaves and causes them to droop."

5 0

3 years ago

You are trying to amplify an eye color gene in Drosophila. Based on the DNA sequence for the gene, you design the following prim

Gala2k [10]

Answer:

TRUE. Yes, these are good primers to use in PCR.

10.SINGLE NUCLEOTIDE CHANGE.

Explanation:

TRUE. Yes, these are good primers to use in PCR.

10.SINGLE NUCLEOTIDE CHANGE.

8 0

4 years ago

Jackie read that Aloe vera promote healing on burned tissue. She decided to investigate the effect of various amounts of Aloe ve

Anon25 [30]

Answer:

Hypothesis: IF Aloe vera is applied, THEN the number of regenerated planaria will increase

Independent variable: The different amounts of Aloe vera applied

Dependent variable: Number of regenerated planaria

Control group: The parts of planaria that received 0% of Aloe vera

Conclusion: The Hypothesis should be rejected

Explanation:

Hypothesis in an experiment is a testable explanation to an observed problem. It aims at proferring a possible solution/answer to a question. In this experiment, the hypothesis will be: IF Aloe vera is applied, THEN the number of regenerated planaria will increase

The independent variable refers to the variable being manipulated or changed in the experiment while the dependent variable is the variable that responds to the changes made to the independent variable. The dependent variable is the measured variable. In this experiment, the independent variable is THE DIFFERENT AMOUNTS OF ALOE VERA APPLIED while the dependent variable is THE NUMBER OF REGENERATED PLANARIA.

The control group of an experiment is the group that differs from the experimental group by not receiving the experimental treatment (independent variable). In this experiment, the control is the PART OF PLANARIA THAT RECEIVES 0% OF ALOE VERA.

Based on the outcome of the experiment, it can be seen that there was an initial increase in number of regenerated planaria but the number later declined, hence, the hypothesis given will be REJECTED as it doesn't explain the declination.

4 0

4 years ago

Which of the indicated structures contains glands which secrete an alkaline mucus that helps neutralize the acidic chyme?

Artist 52 [7]

Duodenum is indicated structures contains the glands which secrete an alkaline mucus that helps to neutralize the acidic chyme

The duodenum is first part of the small intestine. The main role of the duodenum is to complete the first phase of the digestion. In this section of the intestine, the food from the stomach is mixed with enzymes from the pancreas and bile from gallbladder.

It may be subdivided into four sections: the superior part, is descending part, is horizontal part and is ascending part. The superior part (first part, D1) lies in intraperitoneally and is also enlarged proximally (duodenal bulb

To know more about Duodenum visit:

brainly.com/question/8098134

#SPJ4

8 0

2 years ago