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IrinaVladis [17]
3 years ago
14

Illustrate how body cavities distinguish branches of development of animals with bilateral symmetry.​

Biology
1 answer:
Marina CMI [18]3 years ago
3 0

Answer: no body cavity—acoelomates; body cavity not completely lined with mesoderm—pseudocoelomates; body cavity completely lined with mesoderm—coelomates

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How do we represent Dominant and recessive traits in a Punnett square?
aev [14]

Answer:

Dominant traits are an Uppercase letter. Recessive traits are a lowercase letter.

Explanation:

<h3>Example:</h3><h3 />

               Recessive = r

               Dominant = R

6 0
3 years ago
How a plant cell and all its organelle functions to help a tree or plant survive, adapt and reproduce?
ArbitrLikvidat [17]

A plant cell is illustrated as a cell that comprises nucleus and organelles enveloped by a rigid and thick cell wall. The functions of the organelles are as follows:  

1. Cell membrane: It safeguards the cell and monitors the molecules leaving and entering the cell.  

2. Cytoplasm: It assists in holding the organelles of the cells in place.  

3. Cell wall: It is the main safeguarding barrier of the plant cells.  

4. Chloroplast: It transforms sunlight into energy by a procedure known as photosynthesis.  

5. Cytoskeleton: It provides structural support for the cell.  

6. Ribosome: It builds protein for the cell to utilize.  

7. Nucleus: It stores the DNA and coordinates the activities of the cell, mainly it acts as brain.  

8. Mitochondria: It convert oxygen and nutrients into energy.  

9. Lysosomes: It dissociate waste into basic components for other organelles to function.  

10. Endoplasmic reticulum: It transports and manufactures chemical components to and from the nucleus.  

11. Peroxisomes: It digests toxic substances in the cell.  

12. Golgi Apparatus: It transforms proteins and fats built in the cell and transports them outside the cell or prepares them for storage.  

13. Plasmodesmata: It allows communication and transport of substances to the nearby cells.  

14. Vacuole: It stores waste components and sustains the level of pH of the cell.  

15. Vesicle: It conducts substances within the cell and help in storing enzyme s.


7 0
3 years ago
In picture below. need helpp .....
Salsk061 [2.6K]

The correct answer is B. All species share a common ancestor and that change occurs through time.

We can see this because the diagram start at one point (the common ancestor) and spreads out in different ways (changes throughout time).

I hope this helps u!

Have a great day! :)

7 0
3 years ago
Read 2 more answers
An individual’s EKG shows changes in atrial contraction. Which image shows contraction of the atria?
Jlenok [28]

The right answer is The first image (the left one).

An atrium is an upper cavity of the heart, delimited by a thin wall, receiving blood from the bloodstream. There are two in the human heart, they allow the passage of blood from the veins (cellars and lungs) to the ventricles (right and left).

In its upper part (near the entrance of the superior vena cava) is located the sinus node, microscopic structure from which the electrical impulse which ensures the contraction of the heart (especially atrium) ...

The depolarization of the action potential is conducted step by step in the cells of the right and left atria, accompanied by a contraction of the muscle fibers.

7 0
3 years ago
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If an organism that is homozygous recessive for a trait is crossed with a heterozygote, what is the chance of getting a homozygo
VashaNatasha [74]

Answer:

50%

Explanation:

homozygous recessive is rr

heterozygotes are Rr

5 0
3 years ago
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