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gtnhenbr [62]
3 years ago
7

Native bumblebees live in grasslands and consume pollen and nectar from flowers. The bumblebees carry pollen from one plant to a

nother. The bees pollinate most but not all the flowers in their habitat. Amphibians and insects, such as dragonflies, eat bumblebees.
A local resident sets up honeybee hives in the habitat of the bumblebees. Honeybees are a nonnative species that eat the same food as the bumblebees. Food now becomes a limiting factor for the bumblebees.

How might the populations of flowers, bumblebees, and dragonflies change after the introduction of honeybees to the ecosystem?
Group of answer choices

Flowers will increase, bumblebees will decrease, and dragonflies will decrease in population size.

Flowers will decrease, bumblebees will decrease, and dragonflies will decrease in population size.

Flowers will increase, bumblebees will increase, and dragonflies will increase in population size.

Flowers will decrease, bumblebees will decrease, and dragonflies will increase in population size
Biology
1 answer:
Fynjy0 [20]3 years ago
4 0

Answer:

i think it's A. why? because bumblebees pollinate flowers making more grow but dragonflies EAT the bees so they'll decrease.

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7 0
3 years ago
Read 2 more answers
 
Leya [2.2K]

Answer:

I only have answers 2-4 working on 1 now and the photos don't want to work sorry Bold are the Answers Hope this Helps :)

Explanation:

2. What procedure did you use to complete the lab?

Outline the steps of the procedure in full sentences.

For the first one, it said that it was starting to rain so I chose drizzle. The slope was gentle. The surrounding terrain was plains which all of this was shown in the picture. For the second one, it was raining but not downpour so I chose steady rain. The slope was gentle. The surrounding terrain was plains which all of this is shown in the picture. For the third one, it said it was starting to rain so I chose drizzle. The slope was steep. The surrounding terrain was mountains which I believe was all in the photo. For the fourth one, it said it was raining so I chose Steady rain. The slope was steep. The surrounding terrain was mountains. For the last one, it said that it was downpouring and I chose downpour. The slope was gentle. The surrounding terrain is plains which this was all shown in the picture and down below for question three.

Section II: Observations and Conclusions

3. What charts, tables, or drawings would clearly show what you have learned in this lab?

Each chart, table, or drawing should have the following items:

An appropriate title

Appropriate labels

Low-Gradient, Low-Velocity Stream

Observations:

Stream Slope: Gentle

Amount of Rainfall: Light Drizzle

Surrounding Terrain: Plain

Low-Gradient, High-Velocity Stream

Observations:

Stream Slope: Gentle

Amount of Rainfall: Steady Rain

Surrounding Terrain: Plain

High-Gradient, Low-Velocity Stream

Observations:

Stream Slope: Steep

Amount of Rainfall: Light Drizzle

Surrounding Terrain: Mountains

High-Gradient, High-Velocity Stream

Observations:

Stream Slope: Steep

Amount of Rainfall: Steady Rain

Surrounding Terrain: Mountains

Low-Gradient, High-Volume Stream

Observations:

Stream Slope: Gentle

Amount of Rainfall: Downpour

Surrounding Terrain: Plains

4. If you could repeat the lab and make it better, what would you do differently and why?

There are always ways that labs can be improved. Now that you are a veteran of this lab and have experience with the procedure, offer some advice to the next scientist about what you suggest and why. Your answer should be at least two to three sentences in length.

If I were able to repeat the lab and do it differently I would try to do two different things to improve it. I would try to create the model in a simpler manner that allowed me to better see how the erosion factored in. I would also try to take more detailed notes on it if I were to repeat it.

3 0
4 years ago
A gun of mass 5k g fires a bullet of mass 20 g with a speed of 100 m/s. Find the recoil velocity of the gun
kondaur [170]

Answer:Mass of bullet, m=20g=  0.02kg

​Velocity of bullet, v=100m/s  

Mass of gun, M=5kg

Let recoil velocity of gun =V

Before firing, the system (gun+bullet) is at rest, therefore, initial momentum of the system =0

Final momentum of the system = momentum of bullet + momentum of gun

=mv+MV=  

=2+5v

we know Final momentum = Initial momentum

i.e., 2+5v=0

5V=−2

v=-0.4m/s  

Negative sign shows that the direction of recoil velocity of the gun is opposite to the direction of the velocity of the bullet.

3 0
3 years ago
All diploid cells have the same set of DNA. What makes each cell different
Mademuasel [1]

Answer:

Ultimately what makes each cell different despite the fact that they share the same set of DNA is regulation of gene expression, which regulates the expression of genes. In other words, it determines which genes are turned off and which are turned on in a cell. Gene expression can be regulated in many ways; it's mainly centered around molecules like transcription factors that have the ability to turn certain genes on and off and activators, which promote transcription of DNA.

The short answer to this question is cell differentiation. Differential gene expression results from the genes being regulated differently in each cell type, and differential gene expression leads to different cells.

In fact, from the very beginning of our lives, so to speak, when we're developing from a zygote into an embryo, the egg that makes up the zygote in fact already has a sequential program of gene regulation tat is carried out as cells divide, and this program makes the cell become different from each other in a coordinated fashion.

8 0
3 years ago
List the atmospheric layers, temperature, altitude and density of those layers, and a unique object found in those layers.
Fiesta28 [93]

Five layers of the atmosphere are troposphere, stratosphere, mesosphere, thermosphere and exosphere.

<u>Explanation:</u>

Troposphere is the lowermost layer of the atmosphere which is found in the 0-12 km range. The temperature of the troposphere ranges from 15°C to 51°C.  Aircrafts driven by propellers can access the troposphere only.

Stratosphere is the layer of atmosphere that is second from earth. It is found in the 12-50 km range. Its temperature ranges from -51°C to-15°C. Jet-powered aircraft can access the stratosphere.

Mesosphere is the third atmospheric layer. It is found in the 50-85 km range. Its temperature ranges from -15°C to-120°C. rockets and rocket-powered spacecraft can access the mesosphere.

Thermosphere is the fourth atmospheric layer. It is found in the 500-100 km range. Its temperature ranges to about 2000°C. the International Space Station orbits in the thermosphere.

Exosphere is the topmost atmospheric layer. It extends to 10000 km above earth. Its  temperature is greater than 2000°C. most of the satellites that orbit the earth are found in the exosphere.

The density of atmospheric layers decreases while moving up along the layers. Thus troposphere has the maximum density.

7 0
3 years ago
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