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Lisa [10]
3 years ago
9

Which process most likely enabled the formation of the early protists? A. photosynthesis B. endosymbiosis C. conjugation D. bina

ry fission
Biology
1 answer:
natita [175]3 years ago
5 0

Answer:

Answer B. Endosymbiosis

Explanation:

Early protists were first eukaryotic organisms and had several membrane bound organelles. The anaerobic protists evolved by acquiring purple bacteria. The purple bacteria have the ability to carry out aerobic cellular respiration. The endosymbiont transformed into mitochondria in due course of evolution. Similarly, the photosynthesizing protists were evolved by endosymbiosis of cyanobacteria which in turn was transformed into chloroplast during further evolution.

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Which is the best description of a tropical climate zone? O A. High altitude O B. Warm all year long O C. Thick sheets of ice O
VMariaS [17]

Answer: Hewo, there! your answer is Below

B. Warm all year long

Explanation:

here are normally only two seasons in tropical climates, a wet season and a dry season. The annual temperature range in tropical climates is normally very small. Sunlight is intense.

Hope this helps!

Have a great day!!

3 0
3 years ago
Calculate the mass of an object whose weight is 400 N and acceleration due to gravity is 10 m/s2​
aivan3 [116]

weight=mass*gravitational accelaration

we know the weight and the gravitational acceleration

400N=m*10m/s^2

m=400N/10m/2^2

m=40kg

7 0
3 years ago
Read 2 more answers
Describe the function of ribsome
Zolol [24]

Answer:

Function of Ribosomes. Ribosomes are a cell structure that makes protein. Protein is needed for many cell functions such as repairing damage or directing chemical processes.

Explanation:

Ribosomes can be found floating within the cytoplasm or attached to the endoplasmic reticulum.

8 0
3 years ago
Read 2 more answers
How does the body protect itself from these invaders?
boyakko [2]
A - the white blood cells collect the invaders through phagocytosis and kills them 
8 0
3 years ago
HELP! NOW!
uranmaximum [27]

Answer:

Option-D

Explanation:

Cellular respiration and photosynthesis are the two main physiological process which drives the life on Earth. Photosynthesis process leads to the synthesis of Glucose whereas Cellular respiration breakdown the Glucose molecule to form ATP molecules.

In plants, the photosynthesis process occurs in green leaves whereas cellular respiration occurs in every cell of the plant inside the mitochondria.

In the given question, the graph shows:

1. The absorption of oxygen till 6 am which is required during cellular respiration.  

2. After 6 am, the level of oxygen production becomes more than oxygen absorption till 6 pm.

3. After 6 pm, no sunlight is available therefore photosynthesis does not occur. After this, the rate of cellular respiration increases that is oxygen is taken in.

Thus, Option-D is correct.

7 0
3 years ago
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