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goldfiish [28.3K]
2 years ago
6

Hello people ~

Biology
2 answers:
jekas [21]2 years ago
6 0
<h2>BIOLOGY</h2>

Seed formation without fertilization in flowering plants involves the process of

a) Apomixis

b) Somatic hybridization

c) Budding

d) Sporulation

Seed formation without fertilization in flowering plants involves the process of apomixis.

Although seeds, in general, are the products of fertilization, a few flowering plants such as Asteraceae and grasses, have evolved this special mechanism.

An apomixis is a form of aséxual reproduction that mimics séxual reproduction. It includes abnormal séxual reproduction in which egg or other cells like synergids and antipodals develop into an embryo without fertilization and meiosis.

So, the correct answer is option A.

#BRAINLYEVERYDAY

gulaghasi [49]2 years ago
4 0

Explanation:

\longmapsto\: \purple{ \underline{ \boxed{\frak{ hell o \: mate }}}}

Seed formation without fertilization in flowering plants involves the process of ---

A) APOMIXIS

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Explanation:

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On a backpacking trip, Kenny hikes all day at a steady pace, covering 30 kilometers and burning 4000 Calories. At the school tra
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C. After about 90 seconds of intense exercise, the muscles become depleted of oxygen, and anaerobic respiration can no longer function to produce ATP, resulting in "oxygen debt."

Explanation:

There are two sources of carbohydrates in the human's body for energy (ATP) production. 1) Creatine phosphate and 2) Glycogen. Creatine phosphate metabolizes easily and yields ATP quickly. Whereas glycogen is stored form of carbohydrate which yields energy more slowly. Therefore, initially, our bodies use creatine phosphate and then shift to glycogen. Within 60-90 seconds, the creatinine phosphate in the body is mostly utilized and then energy is produced by the use of glycogen in aerobic pathway. During areobic pathway, oxygen supply is sufficient and per cycle, it produces 32 molecules of ATP. However, when oxygen supply is limited or absent, the body will metabolize glycogen to lactic acid via fermentation and produce only 2 molecules of ATP.

Now consider the example: Kenny hikes all day at a steady pace therefore the supply of oxygen is sufficient for aerobic cellular respiration for ATP production. In this scenario, the oxygen debt is minimal and Kenny relies on aerobic respiration pathway to obtain energy. On the other hand, Janelle runs fast (100 meters in 13.5 seconds) and her cellular respiration would be on the compense of aerobic pathway initially which will be shifted to anaerobic pathway after the supply of oxygen is reduced/minimum. Janelle will heavily rely on the anaerobic pathway because running fast needs energy which cannot be provided via aerobic pathway easily. Therefore, Janelle's body will produce lactic acid and suffer from oxygen debt.

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i think im not sure

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