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adoni [48]
3 years ago
15

I don’t understand plz help

Biology
1 answer:
Anna [14]3 years ago
3 0
The answer to number four is A
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Blood returning to the heart from the pulmonary circuit first enters the __________.
Kaylis [27]
Enters the left atrium...this is the oxygenated blood from the lungs (pulmonary)
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3 years ago
All the cells shown are part of the same organism. Which can you infer to be
Solnce55 [7]
The cell in the middle differs from its surrounding cells by having a double cell membrane hence the cells do not have the exact same structure and most likely do not come from the same cell. For cells to produce food molecules, I am not too sure but I feel that the question is referring to plant cells that are able to photosynthesize. Plant cells have a cell wall and a cell membrane hence is unlikely to be represented by most of the cells in this diagram. Thus by elimination, the answer could be having the same function
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3 years ago
Which is a step of the scientific method in environmental science? A. Testing a hypothesis B.Carrying out research C.Collecting
atroni [7]

Answer:

The correct answer is Option B (Carrying out research). The step that follows this step involves forming B.a conclusion

Explanation:

The Natural environment  around us is a function of both the living things and the non-living things. So, environmental science is the study of the natural environment around us. This study includes how to tackle environmental problems and further study on how humans could be impacted by the interactions with their environment. The scientific method is a step taken towards ensuring development in a field by bringing new discoveries and challenging existing beliefs through scientific tests and research. Generally, for most scientific methods of many fields, it starts with:

1. Observations

2. Making inquiry which involves asking questions

3. Forming a hypothesis, which means making untested assumptions

4. Conducting an experiment to check the hypothesis

5. Analyze the results

6. Publish the results

The correct answer is Option B (Carrying out research). Because it involves the scientific method highlighted above. The step that follows this step involves forming B.a conclusion

4 0
3 years ago
- The electrons in the outermost ring that are used to determine reactivity are called
ki77a [65]

Answer:

Valence Electrons

8 0
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Which of the following is conical movement in which the distal end of a structure moves in a circle and the proximal end remains
mars1129 [50]

Answer:

The correct answer is OPTION C (Circumduction)

Explanation:

Circumduction is motions without clear opposites of the part of the body, an example is rotating the hand from the wrist. The answer is circumduction because this type of movement ensures the distal end of a bone moves in a circle while the proximal end remains relatively stable is particularly found in bones where the movements of the joints are opposite to each other example is the ball and socket joint movement. For circumduction to take place, the degree of distance between two bones of the body has to be decreased and sometimes straightened to increase the level of movement or motion produced, there must be a movement towards the middle of the body and sometimes joint movement away from the middle of the body. All these movements are in order.

4 0
3 years ago
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