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Rama09 [41]
2 years ago
13

When observing a group of children at a daycare center, Emily made the following observations: Five year old children played in

one location during independent play time. Three year old children moved between different activities, rather than staying in one location. By analyzing Emily’s observations, what could be a valid conclusion?
Biology
2 answers:
densk [106]2 years ago
5 0
That the three year olds are more active in different activities then the five year olds
VMariaS [17]2 years ago
5 0

Answer:

A) Five year old children have longer attention spans than three year old children

Explanation:

1) took it on e2020

2) common sense

3) if the 5 year olds can sit in one spot the whole time they are focusing more then the three year olds constantly moving around.

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How does the body responds to transplants and how doctors are able to successfully perform transplants
riadik2000 [5.3K]

Answer:

The body naturally responds by rejecting the new organ because it is identified as a foreign object. Doctors use tissue typing to measure the compatibility of the antigens in the organ to that of the recipient. Another way doctors make sure the organs are accepted is through immunosuppressants that make the immune system does not attack the organ.

Explanation:

must include:

body rejects transplants because it recognizes them as foreign

lymphocytes attack the new organ

tissue typing measures antigens on tissue donor organ for compatibility

immunosuppressants disrupt the replication process of lymphocytes that produce antibodies and makes the immune system less effective

6 0
3 years ago
What have researchers concluded from the fossil remains of hominin feet from south africa?
Fynjy0 [20]
<span>They indicate many forms of hominins spent considerable time in trees.</span>
8 0
3 years ago
Describe the effects of the various antibiotic drugs you used. Were they all equally effective at controlling bacterial growth?
Kipish [7]

Answer:

Basically, most   antibiotic drugs  are not  effective in controlling bacterial growth. The potency of any antibiotic drugs is a measure of the magnitude of  diameter of the  bacterial growth . <u>This is because the diameter   is the measurement of the bacterial growth around the antibiotic drugs used to control it multiplication, and therefore a  measure  of how effective  it  can controls the population</u> Thus a small diameter around the antibiotic agent is a proof that it suppressed the growth effectively and can effectively be used to control  the bacteria, While  a large diameter is an indication of low effectiveness of the drug.

Based on this analogy, penicillin with wide usage for control  of bacteria growth  with  diameter of 3mm, is the most effective antibiotic drugs.However, Erythromycin which is also widely used control growth with diameter of 5mm  or 6mm depending on   type of bacterial.

Therefore, the least 3mm  diameter presented by penicillin is an indication that , antibiotic drugs  are not effective enough, and further research need to be done to control growth of bacteria and therefore its   pathogenic  effects.  

Explanation:

8 0
3 years ago
Which is NOT a form of electromagnetic radiation?
enot [183]

Answer:

Sound waves

Explanation:

8 0
3 years ago
At the beginning of Unit 3 we saw the example of the pygmy seahorse, whose offspring can change their body color, depending on t
Brut [27]

Answer:

Seahorses are between the sea animals that may modification color. Such variations camouflage the creatures if not obscure or perhaps frighten possible predators. Color variations facilitate seahorse’s link emotions and intentions, particularly throughout suit. Whereas these alterations are stunning and infrequently seem seamless, they're truly the merchandise of complicated interactions between the seahorse's brain and small organs carried within its skin.

Anatomy

Seahorse organelles, known as chromatophores, are enclosed at intervals their skins. These tiny, sack like organs contain variety of pigments and may expand or consent response to a spread of stimuli, inflicting the seahorse to vary color. Typically, seahorses carry solely a couple of chromatophore diversities, so completely different colors are created through the blending and matching of accessible pigments.

Building Color

All of the colours to that a seahorse will modification are derived from 3 or four basic stains contained in several chromatophores. The pigment cells of those chromatophores are sometimes stacked on prime of every alternative or clustered along in teams. the colour a seahorse displays is predicated on sort, combination and attentiveness of those cells, moreover as their proximity to the skin's surface.

Brightness and Tone

Muscles hooked up to chromatophores will push stain cells toward, or pull coloring cells off from, the surface of a seahorse's skin. Once the coloring is on the point of the skin's surface, the animal's color is brighter and splendid. In turn, once the pigment attracts off from the skin's surface, the ensuing color is a smaller amount saturated and somewhat boring.

Speed of modification

Depending on the stimulant that causes a seahorse to vary its color, chromatophores are measured by the seahorse's system or by its secretion fluctuations. once the system activates chromatophores, comparable to in life-and-death things, the animal's color changes quickly. once chromatophores are activated by secretion fluctuations, comparable to once a seahorse is suit a mate, the animal's color in its place changes somewhat slowly.

Both of them aren't subjected to action because the color modification in ocean horse are influenced by system and secretion system.

8 0
3 years ago
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