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IgorLugansk [536]
3 years ago
7

Is Pleurococcus colonial or unicellular?

Biology
1 answer:
Vaselesa [24]3 years ago
5 0

Answer:

Green algae, variable in size and shape, include single-celled (Chlamydomonas, desmids), colonial (Hydrodictyon, Volvox), filamentous (Spirogyra, Cladophora), and tubular (Actebularia, Caulerpa) forms. Sexual reproduction is common, with gametes that have two or four flagella.

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Need the answer pls thx
Basile [38]

Answer: Males inherit only one X chromosome, so they show all traits on that one chromosome without another to mask them

Explanation: Males are born with XY Females are born with XX

8 0
3 years ago
A group of scientists in alaska notices that not only have atmospheric co2 levels increased at their sampling site but so too ha
Nadya [2.5K]
The correct answer is - the release of methane from thawed permafrost.

In the past decade it has been noticed that the levels of methane are increasing in the atmosphere, and the biggest ''producer'' of this methane is the melting permafrost. There's huge amounts of methane trapped underground bellow the permafrost. But the permafrost is melting because of the global worming, so the methane is free to come out and go up in the atmosphere. 
6 0
3 years ago
During what time period does the balloon drift in a clockwise direction
hjlf

Answer:

The balloon drifts in a counterclockwise direction from 9:00 a.m. to 12 (Midnight) 3.

4 0
3 years ago
Explain how scientists use geological time to determine the age of landforms
masya89 [10]

Answer:

o determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This is called the Rule of Superposition. ... With absolute age dating, you get a real age in actual years

= )

5 0
3 years ago
Read 2 more answers
Instinctive behaviors that are carried out regardless of earlier experience are called _____ behaviors and are a product of an i
telo118 [61]

Answer:

The correct answer is innate behavior.

Explanation:

The behavior that gets monitored by genes and goes through the process of natural selection is termed as an innate behavior. This form of behavior takes place naturally and it just requires a specific kind of stimulus in order to get initiate. Instinctive behavior is the other term for innate behavior.  

The tendency of an animal to perform a specific behavior after getting exposed to the stimulus for the first time is known as instinct. It can be said that one cannot learn innate or instinct behavior. It is performed by all the species in a similar manner irrespective of the surroundings. Caring for offspring is one of the examples of innate behaviors performed by the species that even demonstrate the basic life functions. Innate behaviors play an essential role in transmitting or passing genes to the coming generations.  

5 0
3 years ago
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