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lianna [129]
3 years ago
6

What were the first living “things” called? (between 3.9 and 3.5 billion years ago)

Biology
1 answer:
jolli1 [7]3 years ago
4 0
Bacteria have been the very first organisms to live on earth in the waters of the first oceans. At first, there were only anaerobic heterotrophic bacteria.
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This diagram shows a plant cell. Which of these statements about plant cells must be true?
Darya [45]

Answer:

I think the answer is a plant cell contains one large vacuole in its wrong because they have a nucleus I did not all plants have the same size or shape and they only have one large vacuole or sap vacoule hope it helps

5 0
3 years ago
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What are the products of Anaerobic Respiration in yeast?
8090 [49]

The products of anaerobic respiration in yeast are carbon dioxide and ethanol.

<h3>Anaerobic respiration</h3>

This refers to respiration in the absence of oxygen.

In the absence of oxygen, both the citric acid cycle and the electron transport chain cannot proceed. Thus, only glycolysis takes place.

The two pyruvate molecules produced in anaerobic respiration in yeast are converted to ethanol, instead.

More on anaerobic respiration can be found here: brainly.com/question/12605249

#SPJ12

3 0
2 years ago
Whereas superficial flexors in the anterior compartment of the forearm originate from the _____ epicondyle of the humerus, the s
ASHA 777 [7]

Answer:

Whereas superficial flexors in the anterior compartment of the forearm originate from the medial epicondyle of the humerus, the superficial extensors in the posterior compartment of the forearm originate from the lateral epicondyle of the humerus.

Explanation:

The forearm has 2 compartments: an anterior compartment responsible for the flexion of the wrist, and a posterior compartment with the function to extend the wrist.

The superficial muscles in the anterior compartment arise from the common flexor tendon that originates from the medial epicondyle of the humerus. This compartment is mostly innervated by the median nerve.

The superficial muscles in the posterior compartment originate from the lateral epicondyle of the humerus and are innervated by the radial nerve.

The ulnar nerve innervates the flexor carpi ulnaris and flexor digitorum profundus in the forearm.

6 0
3 years ago
5.How does temperature change affect surface tension?
dybincka [34]
Surface tension decreases when temperature increases because cohesive forces decrease with an increase of molecular thermal activity
3 0
3 years ago
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After resting for 10 minutes, you decide to perform another explosive, one-time movement such as a standing vertical jump and ag
KengaRu [80]

Answer:

The correct answer is a. anaerobic metabolism.

Explanation:

Anaerobic metabolism refers to a high intensity of exercise in which the absence of oxygen limits performance due to the accumulation of metabolites and the corresponding metabolic and physiological dysregulation.Predominantly anaerobic exercises are characterized by: high intensity and short duration, energy is obtained from immediate sources such as muscle ATP, phosphocreatine (PC) and glucose and does not need oxygen for this. For very explosive or high intensity movements it is necessary to obtain a powerful and fast energy, this is obtained by anaerobic systems. The anaerobic metabolism is able to respond immediately to the energy demands of physical exercise and can provide energy for very high intensity exercises (strength and / or power). But this system has a limited capacity, it is short-lived, so if the exercise continues, either you have to stop due to fatigue or reduce its intensity (the power developed) to a level where energy can be obtained through the aerobic metabolism.

8 0
2 years ago
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