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Varvara68 [4.7K]
3 years ago
9

The most apparent difference between modern humans and Australopithecus africanus is that Australopithecus africanus

Biology
1 answer:
lara [203]3 years ago
3 0

Answer:

The correct answer is option d.

Explanation:

An extinct species of australopithecine, that is, Australopithecus africanus was the first species to be illustrated. It was of gracile or slender build and was considered to have been the direct ancestor of modern humans. Like modern man, the A. africanus did stood upright and walked upright, and were having free hands to use. However, they were smaller in height and lighter in weight in comparison to modern man.

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A healthy diet gives a ..................​
Marina CMI [18]

Answer:

What constitutes a healthy diet?

A healthy diet is one that helps maintain or improve overall health. A healthy diet provides the body with essential nutrition: fluid, macronutrients, micronutrients, and adequate calories. A healthy diet may contain fruits, vegetables, and whole grains, and includes little to no processed food and sweetened beverages.

Explanation:

8 0
3 years ago
1. What causes the autorhythmicity or action potentials of the nodal cells? a. A decrease in chloride permeability b. A gradual
Sveta_85 [38]

Answer:

The correct answer will be option-C

Explanation:

The rhythm of the heartbeat is controlled by the pacemaker of the heart called the sino-atrial node.

The SA node generates action potentials which trigger the contraction and relaxation of the atrium and ventricles. The membrane potential generation initiates by the depolarization of the cell membrane when the L type of Ca⁺² ions opens up and calcium ions enter the cell.

This depolarizes the cell until the potential threshold is reached which lies between the -40 and -30 mV.

Thus, Option-C is the correct answer.

5 0
3 years ago
Find the resistance of a portable lantern that uses a 24V power supply and draws a current of 0.80A. PLZ HURRY LOTS OF POINTS PH
ira [324]

Answer:

Resistance = 30 Ω

Explanation:

The resistance of an electric circuit = \frac{Voltage}{current}

voltage = 24V

current (I) = 0.80A

Therefore, R = \frac{24}{0.8}  = 30

R = 30 ohms

5 0
3 years ago
You do not actually have to do an experiment, just write an example. please help!!!
kati45 [8]

Answer:

Well, you will need to see how this fungus looks like. I would say it is a green, black, and brown color and it would be classified as an mold type fungus.

8 0
3 years ago
Which pair of alleles does not represent a Homozygous gene pair?
Anestetic [448]

Answer:Bb

Explanation:

Homozygous gene pair are pair of allele that are identical e.g BB

Heterozygous gene pair are pair of allele that are not identical e.g Bb

Heterozygous gene pair could show complete dominance where the Allele for dominant will completely mask the effect of the reccessive allele and the individual will express the trait of the dominant allele.

6 0
3 years ago
Read 2 more answers
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