BIOLOGY MIDDLE SCHOOL

Which statement describes why natural populations cannot keep growing exponentially?

Answers

Answer 1
Answer:

Answer:

Resources are always limited

Explanation:
Answer 2
Answer:

Answer:The increase can exceed the carrying capacity of the region or ecosystem.

Explanation:

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Which statement BEST describes the effects that stress has on the immune system?A.
Stress can lead to increased vulnerability to infections and immune deficiency disorders.
B.
Stress can lead to decreased infections and immune deficiency disorders.
C.
Stress can inhibit the production of red blood cells and platelets.
D.
Stress can decrease the likelihood of catching colds, flu, and pneumonia.

Answers

I would say A. Stress can lead to increased vulnerability to infections and immune deficiency disorders.

Answer:

its a

Explanation:

took  the test

Can someone please please help

Answers

The evolution of a species is caused by natural selection not genetic variation.

If a brown frog is more camouflaged than a purple frog, the purple frog will be more easily spotted by predators and will die out. Eventually there will be no more purple frogs to reproduce so all frogs will become brown. This is adaptation of a species in order to survive.

Which of the following is true about differentiated cells?A.They have different DNA which allows them to perform different tasks.

B.They all contain the same DNA but they express different genes.

C.They can turn into whatever type of cell your body needs to ensure survival.

D.Each cell can perform various functions for maximum efficiency.

E.There are no more than 200 types in the body or else there would be too many to maintain.

Answers

Answer:

B

Explanation:

All cells contain the same DNA, but there regulators that control which genes are expressed in the cell

Satellite imaging can be used to:predict weather
analyze geological structures
locate oil deposits
all of the above

Answers

The correct answer is "all of the above." Satellite imaging is indeed usable for predicting the weather, analyzing geological structures, and also to locate oil deposits. Satellite makes the technology much more useful than it was. IT is also what gives the gps the ability to give you directions.
lol all of the above

Describe the direction of the flow of thermal energy if a bowl of ice cream sits on the counter of the kitchen.

Answers

Answer:

The bowl of ice cream contains ice cream with temperature below freezing point. A hot body contains more thermal energy than a cold body. Thermal energy only flows from a hot body to a cold body, and not the reverse.

The bowl of ice cream contain less thermal energy than it sorrounding envoirment (air and the kitchen counter), this creates a temperature gradient that forces thermal energy from the sorrounding envoirment into the bowl of ice cream because, according to thermodynamics, all bodies always tend to be in thermal equilibrium with its sorrounding. The thermal energy flows into the bowl of ice cream until it has the same thermal energy with its sorrounding; bringing the thermal gradient between them to zero.

Jim’s heart rate was monitored during periods of exercise and periods of rest. The graph shows the result of one 50-minute test.Which statement is an inference that can be made by using the graph?

Answers

Answer:

Jim's heart rate decreased quickly after 30 minutes since he is in good shape.

I choose this one and got a 100%

Explanation:
Other Questions
Enzymes are a type of protein found in cells. They catalyze biochemical reactions that are essential for cellular function Each typeof enzyme has a unique structure that is different from every other enzyme. How does this help enzymes perform their function?A. It allows enzymes to change their form based on a given substrateB. It ensures that all enzymes bind to the same substrate,C. It allows each enzyme to catalyze multiple reactionsD. It ensures that enzymes only bind to specific substrates
Why do you think a growing human population means a mass extinction event for Earth’s animals? Cite your evidence.
Use the term concentration in a sentence about liquids that conveys its meaning?simple form please.
What type of organic molecule do you think is shown in the diagram above? Explain your answer.