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Dmitry_Shevchenko [17]
3 years ago
9

Which of the following statements is false?

Biology
2 answers:
zhuklara [117]3 years ago
8 0

Answer:

Alternative 4 - Protists are all unicellular

Explanation:

Eukaryotic organisms like <u>protozoa</u> have cells capable of performing various functions such as respiration, excretion, reproduction and locomotion. These cells have structures capable of performing specific roles, as in a <u>prokaryote</u> cell.

However, some types of <u>algae</u> do not have specialized organs and structures such as leaves, stem or flowers. In addition, they have asexual reproduction (through spores). Due to these characteristics, they are considered eukaryotic organisms.

yulyashka [42]3 years ago
7 0
Not all Protists are unicellular so answer choice 4 is false. 
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Which observation would provide indirect evidence that supports a hypothesis that the bubbles are o2 ?
zhuklara [117]

Explanation:

D. An increase in bubbles on the plant when it is moved under a brighter light.

The rate of photosynthesis increases with light intensity.

The process of photosynthesis is energy-storing, it converts light energy into chemical energy, which is stored in the bonds of glucose. Thus an increase in light intensity would increase the rate of photosynthesis, and more O2 bubbles would be produced as waste.

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released.

Occurring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ionsand produces molecules of the energy storage molecule ATP through an electron transport chain.

This occurs in the thykaloids, where pigment molecules like chlorophyll reside. Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules. These store energy in their bonds, which can be released in respiration in the mitochondria.

Learn more about Photosynthesis at brainly.com/question/4216541

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

3 0
3 years ago
Match the celestial bodies with their descriptions. meteorite asteroid meteor comet an object from space burning up as it enters
Tamiku [17]

An object from space burning up as  it enters the atmosphere of a planet: Meteor

A small body in space, usually composed  of rock or metal: Asteroid

An object from space that falls to the  surface of a planet without completely  burning up: Meteorite

A body made mostly of ice and dust  that leaves a trail of dust known as  a tail as it approaches the Sun: Comet

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So when the produce milk or make cheese, it's fresh, has vitamins, and is healthy
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