Harmful algal blooms are characterized by a rapid increase in the population of a type of algae that produces toxins. Toxins are chemicals that are poisonous to living things. The rapid reproduction of this type of algae is caused by the presence of sunlight, warm water, and an increase in the level of nutrients in the water. The nutrients come from farms that use chemicals to make their plants healthy. They are carried to lakes and rivers by runoff. Suppose this scenario was modeled in the lab. How would the populations of the biotic factors be affected? Check all that apply. Mosquito larvae will increase. Heron population will increase. Algae population will increase. Trout population will decrease. Minnow population will decrease.

Answers

Answer 1
Answer:

Algae population will increase, Trout population will decrease, Minnow population will decrease, and Mosquito larvae will increase.

What is an algal bloom?

A fast rise in the population of algae in aquatic environments is known as an algal bloom. An algal bloom is typically induced by the presence of surplus nutrients and favourable climatic conditions such as sunlight and warm temperatures.

Based on the scenario described, the populations of biotic factors would be affected as follows:

Algae populationwill increase: Harmful algal blooms are characterized by a rapid increase in the population of a type of algae that produces toxins. This is caused by the presence of sunlight, warm water, and an increase in the level of nutrients in the water, which is provided by runoff from farms that use chemicals to make their plants healthy.

Trout population will decrease: The increase in the population of harmful algae can have a negative impact on the populations of other aquatic organisms. In this case, the toxins produced by the algae can be harmful or lethal to fish, which could result in a decrease in trout populations.

Minnow population will decrease: Similar to trout, minnows could also be affected by the toxins produced by the harmful algae, which could result in a decrease in their populations.

Mosquitolarvae will increase: Harmful algal blooms can also create favorable conditions for the growth and reproduction of mosquito larvae, which could lead to an increase in their populations.

Heron population will increase: It is unlikely that the heron population would be directly affected by the harmful algae or its toxins. However, if the decrease in trout and minnow populations results in a decrease in the heron's food supply, the heron population may increase as they search for alternative food sources.

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Answer 2
Answer:

Answer:

Algae population will increase.

Trout population will decrease.

Minnow population will decrease.

Explanation:


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I need help with this

A forest ecosystem can support a limited number of bears. This is because A)
bears hibernate during the winter.



B)
the base of the food chain is seasonal.



C)
available energy is lost from one trophic level to the next.



D)
light that supports photosynthesis is limited during certain times of the year.

Answers

A forest ecosystem can support a limited number of bears. This is because available energy is lost from one trophic level to the next. (flies, trout, then bears)

Answer:

The correct answer would be C)  available energy is lost from one trophic level to the next.  

It is the universal law that the energy is lost when transferred from one trophic level to the next.

It is because most of the energy present at any trophic level is used by the organisms for their biological processes such as locomotion, reproduction et cetera. Due to this, most of the energy is lost as heat in the surrounding environment.

In the given food chain, the bears are present at the highest trophic level and thus they would get minimum energy.  

Thus, the ecosystem can provide only a limited amount of energy to the bears due to which the ecosystem can support a limited number of bears.

Food webs diagram the complex relationships of energy flow in an ecosystem containing a variety of producers and consumers. A diagram is provided. Which of the following correctly shows one path that energy would flow through this ecosystem?A. A Star grass → termite→ wildebeest→ aardvark
B. B Hyena → aardvark → impala → harvester ant
C. C Grasshopper → termite→ warthog → hare
D. D Red oat grass → termite → wildebeest → lion

Answers

In food web, Grasshopper → termite→ warthog → hare correctly shows one path that energy would flow through this ecosystem.

What do you mean by food web?

A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community. Another name for food web is consumer-resource system.

Primary consumers, mostly herbivores, exist at the next level, and secondary and tertiary consumers, omnivores and carnivores, follow. At the top of the system are the apex predators: animals who have no predators other than humans.

Food web is an important conceptual tool for illustrating the feeding relationships among species within a community, revealing species interactions and community structure, and understanding the dynamics of energy transfer in an ecosystem.

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Hi! Hola! Aloha!

The answer would be D. Red oat grass > termite > wildebeest > lion

Hope this helps !

Which part of the brain is indicated by the arrow below?Cerebrum
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Pons
Medulla oblongata

Answers

Answer: Cerebrum because it is the largest part of the brain

An organism that has the same genes as the organism from which it was produced is called

Answers

The answer is a clone.



In which domains are ALL the organisms unicellular? A. Archaea and Bacteria
B. Bacteria and Eukaryota
C. Eukaryota and Archaea
D. Archaea, Bacteria, and Eukaryota

Answers

All three domains include unicellular organisms, archaea, bacteria, and eukarya.
D. Is the answer choice I would go with

I need 10 facts about Hurricanes for Science

Answers

Hurricanes are large, spiraling tropical storms that can pack wind speeds of over 160 mph and unleash more than 2.4 trillion gallons of rain a day.The deadliest U.S. hurricane on record was a Category 4 storm that hit the island city of Galveston Texas. When they come onto land, the heavy rain, strong winds and heavy waves can damage buildings, trees and cars. The heavy waves are called a storm surge.The difference between a tropical storm and a hurricane is wind speed – tropical storms usually bring winds of 36 to 47 mph, whereas hurricane wind speeds are at least 74 mph.Hurricanes rotate in a counter-clockwise direction around the eye. The rotating storm clouds create the "eye wall," which is the most destructive part of the storm.Hurricanes are classified into 5 categories, based on their wind speeds and potential to cause damage. Names can be "retired" if a hurricane has been really big and destructive. Retired names include Katrina, Andrew, Mitch and most recently Sandy.When the National Hurricane Center began giving official names to storms in 1953, they were all female. This practice of using only women’s names ended in 1978.The costliest hurricane to make landfall was Hurricane Katrina, a Category 5 storm that slammed Louisiana in August of 2005. Damages cost an estimated $108 billion.