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FrozenT [24]
4 years ago
5

What was Darwin's role on the beagle

Biology
1 answer:
Natalka [10]4 years ago
4 0
In 1831, when Darwin was just 22 years old, he set sail on a scientific expedition on a ship called the HMS Beagle.
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Which of these describes lichens and mosses that first colonize a previously barren area?
faust18 [17]

The answer is; pioneer species

These pioneer species have adaptations such as minute roots that enable them to grow on rocks, with little nutrients, and need no soil. This is why they are able to colonize new barren land. They are able to break down rocks to soil and give an opportunity for higher plants to later colonize the environment after time.  


6 0
4 years ago
Which two sentences identify the characteristics of a prokaryote?
Zolol [24]

Answer: • Most prokaryotes lack well-defined organelles. They can move from one place to another using cilia.

• The presence of peptidoglycan in their cell walls allows them to be visible on staining.

Explanation:

A prokaryote lacks a nucleus that's enveloped enclosed. Also, most of them doesn't have well-defined organelles.

The presence of peptidoglycan in their cell walls allows them to be visible on staining and they can move by using cilia.

5 0
3 years ago
"artery" and "vein" are defined by whether they leave or enter the heart. if they were defined by whether they carried oxygenate
Leni [432]
The pulmonary artery and vein.
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3 years ago
Describe the process of photorespiration. what is its effect on the rate of photosynthesis
Lynna [10]
Before the Siderian period the world had much less oxygen in it. Meaning, seas devoid of oxygen. Durring the Siderian the algae activity that signifies the period began to pump oxygen into the oceans. Allowing then unreactive metalic iron in the sea to be precipitated out into iron oxide. In the case of temperature being a culprit in the Siderian, most likely not. Unless you factor it into giving the agal life energy. Temperature does affect oxidation, but oxidation cannot occur without oxygen. The higher the temperature, the easier it is for oxygen to bond with iron, the lower, the slower it will react.
5 0
3 years ago
What is the first stage in the cell cycle
ipn [44]

The normal cell cycle consists of 2 major stages. The first is interphase, during which the cell lives and grows larger. The second is Mitotic Phase. Interphase is composed of three subphases.

5 0
4 years ago
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