Compared to other methods of plant reproduction, sexual _______ ensures the highest levels of genetic diversity.

Describe the components that should be included in a well-written scientific abstract and what should be excluded.

Maksim231197 [3]

Answer:

The components of abstracts that should be included are as follows: " introduction, Description, limitations, conclusion". Other than these components anything else should be excluded.

Explanation:

The various components of an scientific abstract that should be included are as follows:

Introduction: In this part of the abstract it should contain the brief idea about the research.

Description: In the second part it should contain the research and the objective of the research and also about the analytical methodologies that has been applied in the research.

Critical: This is part in which the limitation for the research are present.

Language: The most important factor, the language used should be very formal type.

Conclusion: The things and ideas that had been learnt during the period of research. It should also contain the new findings and the trends that has came out during the research.

7 0

3 years ago

Study the image of Earth’s interior.

MrRa [10]

Well there are many but the surface of the earth is the material violin one outer core (if that makes sense

5 0

3 years ago

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Which is NOT a nonvascular seedless plant? moss grass liverworts hornworts

otez555 [7]

<span>Plants without vascular system are non-vascular plants. Non-vascular plants have no xylem and no phloem. Non-vascular plants include algae, bryophytes, moss grass, liverworts and hornworts. The answer to this item is moss. Moss is a non-vascular plant which has no seeds and no flowers. It uses spores in reproduction.</span>

4 0

3 years ago

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3. In a field of sugar beets in Georgia the net primary productivity is 120 grams/m^2/day, and the

konstantin123 [22]

Answer and Explanation:

Available Data:

1 gr beets = 2,000 cal

NPP = GPP – Respiration = 120 grams/m2/day

NPP= Net primary productivity of a system

GPP= Gross productivity of the producers

Respiration loss 25% of NPP

Insolation energy is 800 calories/cm2/day

% Efficiency of Photosynthesis = (NPP/Insolation Energy) X 100

1) Find the gross productivity of the sugar beets.

We need to calculate the GPP, which equals NPP - Respiration rate. The respiration loss is 25% of the NPP. This is:

100% NPP--------------- 120 g/m²/day

25% NPP ----------------X = (25 x 120)/100 = 30 g/m²/day

Now that we know the values of NPP and respiration rate, we can calculate the GPP.

GPP = NPP - Respiration

GPP = 120 (g/m²/day) - 30 (g/m²/day)

GPP = 90 g/m²/day

GPP = 0.009 g/cm²/day

2) Using the NPP, calculate the efficiency of photosynthesis for the sugar beets.

% Efficiency of Photosynthesis = (NPP/Insolation Energy) X 100

We know the NPP, but this value is calculated in g/m²/day, while the Insolation energy is in g/cm²/day. We need to calculate the % Efficiency of Photosynthesis in cm. To do that, we must transform the information.

So if 1 m² = 10,000 cm², then:

10,000cm²----------120 grams/m²/day NPP

1 cm²---------------- (1 x 120) / 10,000 = 0.012 grams/cm²/day NPP

We also know that 1 gr beets = 2,000 cal, and that the Insolation energy is 800 calories/cm²/day

So we need to transform Insolation energy from calories/cm²/day to grams/cm²/day, so:

2,000 calories ----------------- 1 gr beet

800 calories/cm²/day---------X = 0.4 gr beet.

% Efficiency of Photosynthesis = (NPP/Insolation Energy) X 100

% Efficiency of Photosynthesis = (0.012 (gr/cm2/day) /0.4 (gr/cm2/day)) X 100

% Efficiency of Photosynthesis = 3 gr/cm2/day

8 0

3 years ago

Can someone help me with this?

Lina20 [59]

Independent variable: FERTILIZER.
This is the variable that you think affect your dependent variable and so you change it and use different types of it to confirm your prediction.
Dependent variable: COLOR.
That is the variable you are interested in.
Hypothesis: THE TYPE OF FERTILIZER USED IN CULTIVATING HYDRANGEA FLOWER AFFECT THEIR COLOR.
An hypothesis is a generalized statement which predicts the relationship between the variables you are examining.
Control group: THE GROUP THAT DID NOT GET ANY FERTILIZER
The control group is the group that does not receive any treatment.
Experimental groups: THE GROUPS THAT RECEIVED FERTILIZERS.
The experimental group is the group that receives treatment.
Constants: TYPES OF SOIL USED, MORNING SUNLIGHT, WATER AND THE NO OF DAY THE EXPERIMENT LAST.
The constants are the inputs into your experiment which you give to all the groups.

7 0

3 years ago

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