According to the graph, which region's population is expected to approach 500 million in the year 2040?

K-selected species are also called equilibrium species. <br> a. True <br> b. False

olga_2 [115]

The answer is True. These species do well in stable environment. They have a long life span and produce few offsprings in their lifetime. Their offspring are large and more energy is invested in the individual rather than the numbers. Individuals can reproduce more than once in their lifetime unlike r-selected species that reproduce once.

5 0

3 years ago

Many bedbugs are highly resistant to insecticides, but the scientist’s bedbugs aren’t resistant. Explain why this happens based

Nutka1998 [239]

Wild Bedbugs become insecticide resistant because of the mutations and natural selections.

<h3><u>Explanation</u>:</h3>

As the huge amount of pesticides and insecticides are sprayed in the rooms for cleaning, the pests and insects like bedbugs dies in huge portions because of the toxin. But some of the bedbugs remain alive as they have mutations that help them to detoxify the toxins given, or bypass the metabolic processes so that the toxins don't hamper them much.

Now as the population becomes very small(bottle neck effect), the nature selects these organisms over the other to propagate more sufficiently and enormously. As the nutrients and supplies are also available, so the bedbugs don't suffer any lack of nutrition which can be a determining factor of their population.

Thus the wild bedbugs become resistant to insecticides while the experimental one remain succeptible to insecticides.

4 0

3 years ago

How does a plant get the food it needs in order to grow?

DedPeter [7]

Answer: Plants make food in their leaves. The leaves contain a pigment called chlorophyll, which colors the leaves green. Chlorophyll can make food the plant can use from carbon dioxide, water, nutrients, and energy from sunlight. This process is called photosynthesis.

Explanation: do you know zayn malik

6 0

3 years ago

Read 2 more answers

PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!!!!!!!!!!!!!!!!!!!PLSSSSSSS HELPPPPPPP I WILL GIVE BRAINLIESTTTTTTTTTT!!!

sergejj [24]

Active Immunity is natural.

Passive Immunity is maternal.

Active Immunity from Vaccination.

Passive Immunity is Artificial.

Passive Immunity:

Does not require previous exposure to a disease agent

Takes effect immediately

Does not last long (up to a few months)

Active Immunity is produced inside of the body, whereas passive immunity is introduced from outside of the body.

Active Immunity is from direct infection and vaccination.

Passive Immunity is from Breast milk, Injection, Mother to baby through the placenta.

Active Immunity takes effect over time (typically several weeks).

Passive Immunity takes effect immediately.

Active Immunity's length of efficacy is Long-term to lifelong.

Passive Immunity is short-term.

Active Immunity is produced by memory cells, Passive Immunity is not.

Hope this was insightful and enough information.

6 0

2 years ago

Read 2 more answers

Does the tempterature of water affect the time it takes sugar to dissolve

Yuliya22 [10]

Answer:

I think so

Explanation:

4 0

2 years ago