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____ [38]
4 years ago
9

During the 1950s, California citrus growers were trying to combat an infestation of the citrus red mite using different insectic

ides, such as DDT. Unfortunately, early tests showed that DDT caused the red mite population to increase while decreasing the red mite’s predator populations. Using this information, what inference could best be made by the citrus growers? (SC.912.N.1.6)
A.The population of red mites increased
B.The population of the insect predators decreased
C.The red mites were resistant to the effects of the insecticides.
D.The use of insecticides is a reliable way to eliminate all insect predators.
Biology
1 answer:
devlian [24]4 years ago
3 0

Answer:

C. The red mites were resistant to the effects of the insecticides.

Explanation:

The increase in the population of the red mite due to the application of the insecticides shows that red mite are resistance to the effect of insecticides because the insecticides did not decrease the population of the red mite but the predator of the mite die and decrease in population. This insecticides have no effect on the red mite so for reducing the red mite population the citrus grower should use another pesticide that kills red mite.

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The sternocleidomastoid muscles help to flex the neck. What are their antagonists
White raven [17]

Answer:

Trapezius.

Explanation:

Sternocleidomastoid muscles may be defined as one of the largest superficial cervical muscle. The main function of this muscle is the neck flexion and the head rotation.  

Trapezius muscle is the large muscle that extend from the occipital bone. The main function of the trapezius muscle is the scapula movement and support of the arm. Trapezium muscle resist the neck flexion and works as the antagonist to the trapezius muscle.

Thus, the answer is trapezius.

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3 years ago
Where are these cellular receptors located​
katen-ka-za [31]

Answer:

Cell surface receptors (membrane receptors, transmembrane receptors) are receptors that are embedded in the plasma membrane of cells. They act in cell signaling by receiving (binding to) extracellular molecules. They are specialized integral membrane proteins that allow communication between the cell and the extracellular space.

Explanation:

4 0
3 years ago
1. Describe the staggering challenge that Velings describes at the beginning of his talk.
ozzi

The staggering challenge that Velings describes at the beginning of his talk is option B:  B. Depleting food resources as our population grows.

2. In 35 years when there are 2.7 billion more of us, the solution given that we will still be sharing the same resources is option D. All of the above

A. Aquaculture

B. Use the ocean as farmers instead of hunters

C. Sustainable fishing

Some of the reasons Velings gives for fish being the best possible food are:

A. Exciting and diverse variety

C. Provides key amino acids and fatty acids

F. Prevents heart disease

Some issues with the current state of the aquaculture industry that contribute to its bad reputation is option F. All of the above:

A. Fisheries are badly managed.

B. Fisheries deplete mass amounts of fish to use as fish meal.

C. Fisheries often use a large amount of chemicals.

D. Fisheries can alter the genetic pool.

E. Many fisheries use unsustainable fish-feed ingredients.

<h3>What is Mike Velings talks about?</h3>

Industrial aquaculture has had a wide range of negative effects on the environment, including the overfishing of wild fish to feed carnivorous farmed fish and the escape of farmed fish from their containment, which endangers local wild fish populations.

Lastly, in the words of Mike Velings, We are approaching a worldwide food crisis, he said. At our current rate, we are already taking more fish from the ocean than it can naturally replace, despite the fact that almost 3 billion people rely on the ocean for their food. Mike Velings, an entrepreneur and conservationist, offers a solution in this fact-filled, eye-opening talk: the practice of farming fish. "We need to stop hunting the ocean and start farming it,"

Learn more about Depleting food resources  from

brainly.com/question/9796760
#SPJ1

See full question below

(4.2) Unit 4 Lab Questions- Portfolio (1-6, 1-6)

Part 2 - Please watch the following video and answer the questions that follow.

Mike Velings: The case for fish farming

https://youtu.be/a7cDt5r2pGY

What is the staggering challenge that Velings describes at the beginning of his talk? (1 point)

A. Water pollution affecting the fish farms.

B. Depleting food resources as our population grows.

C. Climate change reducing the amount of fresh fish available

(4.2) Unit 4 Lab Questions- Portfolio (1-6, 1-6)

2. In 35 years when there are 2.7 billion more of us, what is the solution given that we will still be sharing the same resources? (1 point)

A. Aquaculture

B. Use the ocean as farmers instead of hunters

C. Sustainable fishing

D. All of the above

E. None of the above

(4.2) Unit 4 Lab Questions- Portfolio (1-6, 1-6)

3. What are some of the reasons Velings gives for fish being the best possible food? (check all that apply) (1 point)

A. Exciting and diverse variety

B. Reduces the rate of cancers

C. Provides key amino acids and fatty acids

D. Makes people more intelligent

E. Allows the land animals to increase their populations

F. Prevents heart disease

What are some issues with the current state of the aquaculture industry that contribute to its bad reputation? (1 point)

A. Fisheries are badly managed.

B. Fisheries deplete mass amounts of fish to use as fish meal.

C. Fisheries often use a large amount of chemicals.

D. Fisheries can alter the genetic pool.

E. Many fisheries use unsustainable fish-feed ingredients.

F. All of the above

G. None of the above

7 0
1 year ago
Human overpopulation will likely lead to more extinctions of species because
kherson [118]
D.habits will be altered
7 0
3 years ago
Read 2 more answers
What causes 37% of all pollution?<br> oil <br> water dumping <br> nuclear waste <br> landfills
OverLord2011 [107]

Answer:

nuclear waste

Explanation:

8 0
2 years ago
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