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sammy [17]
3 years ago
15

The different degrees of sleep and wakefulness through which newborns cycle, ranging from deep sleep to great agitation, are cal

led __________.
Biology
1 answer:
Alecsey [184]3 years ago
7 0
The different degrees of sleep and wakefulness through which newborns cycle, ranging from deep sleep to great agitation, are called states of arousal. These states are regular sleep, irregular sleep, drowsiness, quiet alertness and crying. About eight to nine hours each of an infant's day is dedicated to regular and irregular sleep. So, most of the time of the infant is spent in these states. These are the states where the brain of an infant is developing the important connections for growth and survival. Crying is the means for infants to communicate their needs. Different type of cries would represent different needs of the infant.
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Karo-lina-s [1.5K]
Photosynthesis results in increased biomass for a plant. I<span>n photosynthesis, carbon dioxide and water yield glucose and oxygen. So, the carbon dioxide and water are taken in and are create a glucose. Glucose can be transformed into organic molecules, such as starch, which will increase biomass.</span>
5 0
3 years ago
In which phylum do we see plants with lignin, vascular system but no seeds?
andre [41]

Answer is the phylum is Pteridophyta. Pteridophytes are first land plants, examples ferns, <em>Lycopodium, Selaginella. </em>Members have liginified cells and developed conducting tissues called vascular system to conduct water and synthesized food. They reproduce through spores, seeds do not develop in pteridophytes.

4 0
3 years ago
Structural polysaccharides include: chitin, peptidoglycan, and cellulose. In all three, the monomers are joined by the
kolezko [41]

Answer:

Explanatieon:

7 0
3 years ago
In the absence of oxygen, a yeast cell undergoes fermentation and uses 100 molecules of glucose. How much net ATP will be genera
vredina [299]

Answer:

200 ATP molecules

Explanation:

Yeast is a fungus that undergoes fermentation instead of cellular respiration when there is an absence of oxygen. In the fermentation process undergone by yeast, which produces an alcohol as product (alcohol fermentation), two (2) ATP molecules are produced as net ATP.

However, if a yeast cell undergoes fermentation and uses 100 molecules of glucose, the yeast cell will generate a net ATP of 2 × 100 molecules = 200 molecules.

7 0
3 years ago
What do all seed plants use to reproduce
KIM [24]

Answer:

Seed are generated by apomixis which is a form of asexual reproduction.

Explanation:

5 0
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