1. I learned humans didn’t evolve from apes, rather, we and apes evolved from a common ancestor. That makes humans and apes related species like cousins.
2. Human developed a brain that allowed them to think, love, and be individual persons.
3. Evolutionary process is performed by mutations.
4. Evolution only occurs when necessary for survival like new environment and weather change.
5. I learned human and apes have some similar things: both are mammals and they both belong to the kingdom animalia.

1. The parts of bacteria are the flagellum, the pilus, nucleoid, ribosomes, plasma membrane, cell wall and the capsule. B3 because I am listing the characteristics of microorganisms.
2. The study of bacteria is called bacteriology, which is a branch of microbiology. B1 because you can’t see bacteria without a microscope.
3. If you lined up all the bacteria in the world, it would reach the end of the known universe, approximately 10,000,000,000 light years away.
4. There are an estimated 10 million to 1 billion species of bacteria. B2 because I have adaptations.
5. Bacteria are basically immortal. They can be killed by toxins and nutrient deficiency but not by age.

#b1 this picture shows what a chameleon’s skin looks like under a microscope. It is interesting because it shows the tiny multi colored skin cells

#b2 the chameleon is very well adapted to its environment.  It has a long sticky tongue which helps it to catch bugs more easily.  Another adaptation is the chameleon’s zygodacylous feet [feet with four toes].  This adaptation allows the chameleon to wrap its feet around a branch and stabilize itself. But the coolest adaptation that helps the chameleon interact with it’s environment is its ability to change colour. This ability to change colour acts as a form of communication with other chameleons.

#b3

The chameleon is a multi celled organism which is part of the Animalia kingdom. This means it can move around and has to eat other living things to live. Most chameleons lay eggs but some species give live birth.  Chameleons, whether they hatch from eggs or are born live, begin their life about 1 inch long and end up being about 7 inches long.

A1 In my experiment I am looking to find out what causes a chameleon to change colour. The variables in this experiment will be: heat, light, amount of food and water, space, another chameleon, and terrain. The way I can implement controls on these variables is by independently increasing heat, light, food, and water given to the chameleon.  If a change in colour occurs I will know which variable caused the change.  If none of these variables cause a change I will then move on to testing tank size (space) by placing the chameleon in tanks increasing in size.  If this does not cause a change I will introduce another chameleon into the tank.  The final test will be to introduce the chameleon to a variety of terrains, starting with a simple plain terrain and working up to a very exotic and foreign terrain (a terrain that the chameleon has never seen before).  My consistent and standardized approach (introducing variables one at a time) will allow me to figure out which variable caused the change.  If I introduced all of the variables at once I would not be able to figure out what caused the change.

A2 If, when testing the light and heat variable, no change in the chameleons’ colour occurs, I will replace out the heat lamp’s light bulb because it probably is malfunctioning.  I will also check the thermometer inside the tank to make sure the lamp is giving off enough heat.  If necessary I will replace the thermometer as well.  If the chameleon does not eat the food or drink the water I will replace both with new fresh food/water.  If the extra chameleon which I add into the tank is causing the first chameleon to be aggressive I will switch out this chameleon with another.  If the chameleon shows no response to all of my terrain options I will add more options of terrain.

#1 Most people think chameleons change color to blend in with there environment. But the truth is chameleons change color according to there mood.

#2 Chameleons have tiny multi coloured skin cells.  When a chameleon changes color it does so by retracting all of the coloured skin cells that are not needed. The result is the chameleon changing color.

#3 Chameleon’s tongues are two times longer than it’s body. It is very long and sticky which helps it to catch unsuspecting insects with ease.

#4 the chameleon’s tail is very long and strong to help it

Balance on a tree while using its front feet to do other things such as climbing.

#5 there are more than 160 species of chameleons which live all over the world. Most of these species are found inAfrica.  People also keep chameleons as pets because of their unique beauty and their ability to change colour. If you decide to keep a chameleon as a pet it is very important to keep it happy and healthy.  This means feeding it live food (crickets, grasshoppers) and giving it a generous sized terrarium that is kept at the right temperature.  If this isn’t done the chameleon may die.

my final question

What did chameleons look like before they evolved

How do protists reproduce?

Chameleon
Bradypodion pumilum Cape chameleon female
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Lacertilia
Infraorder:	Iguania
Family:	Chamaeleonidae
Subfamilies and Genera
Chamaeleoninae Archaius Bradypodion Calumma Chamaeleo Furcifer Kinyongia Nadzikambia Trioceros Brookesiinae Brookesia Rieppeleon Rhampholeon

Chameleons (family Chamaeleonidae) are a distinctive and highly specialized clade of lizards. They are distinguished by their zygodactylous feet, their separately mobile and stereoscopic eyes, their very long, highly modified, and rapidly extrudable tongues, their swaying gait, the possession by many of a prehensile tail, crests or horns on their distinctively shaped heads, and the ability of some to change color. Colors include pink, blue, red, orange, turquoise, yellow, green, brown, and black. Uniquely adapted for climbing and visual hunting, the approximately 160 species of chameleon range from Africa, Madagascar, Spain and Portugal, across south Asia, to Sri Lanka, have been introduced to Hawaii, California, and Florida, and are found in warm habitats that vary from rain forest to desert conditions. Chameleons are often kept as household pets.

Etymology

The English word chameleon (also chamaeleon) derives from Latin chamaeleō, a borrowing of the Ancient Greek χαμαιλέων (khamailéōn), a compound of χαμαί (khamaí) “on the ground” and λέων (léōn) “lion”. The Greek word is a calque translating the Akkadian nēš qaqqari, literally ‘lion ground’ (adjectives follow nouns in Akkadian).^[1]

Classification

Family Chamaeleonidae

• Subfamily Brookesiinae
• the Subfamily Chamaeleoninae

Evolution

The oldest known chameleon is Anqingosaurus brevicephalus from the Middle Paleocene (about 58.7–61.7 mya) of China.^[2]

Other chameleon fossils include Chamaeleo caroliquarti from the Lower Miocene (about 13–23 mya) of the Czech Republic and Germany, and Chamaeleo intermedius from the Upper Miocene (about 5–13 mya) of Kenya.^[2]

The chameleons are probably far older than that, perhaps sharing a common ancestor with iguanids and agamids more than 100 mya (agamids being more closely related). Since fossils have been found in Africa, Europe and Asia, chameleons were certainly once more widespread than they are today. Although nearly half of all chameleon species today are found in Madagascar, this offers no basis for speculation that chameleons might originate from there.^[3] Monophyly of the family is supported by several studies.^{[citation needed]}

How did the first plants come to be?

Not all plants use seeds. Plants use more than one method of reproduction. The first life forms on Earth were photosynthetic. They used light from the sun to make sugar, and then consumed the sug

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How did the first plant come to be?

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How did the first plant come to be?

 

Scientifically, how did the first plant be created. It need a seed and parents DNA so how could it “re-“produce and come to be? This has been bugging me for days and I really want to know.

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Answers

 

Answer from Manimal

5 people found this helpful

That is one of the mysteries of evolution.

Not all plants use seeds. Plants use more than one method of reproduction. The first life forms on Earth were photosynthetic. They used light from the sun to make sugar, and then consumed the sugar to reproduce. The leap from single cell organisms to multi cell organisms is unknown, and there are many theories.  I think the plants you refer to have roots and leaves and reproductive organs that produce seeds. Evolution states that these plants evolved from simpler plants, but nobody knows the exact evolutionary path from single cells, to plants without seeds, to plants with seeds. The link below gives a lot more data about each phase.   I hope this helps.

Sources: http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookDiversity_5.html

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Answer from PamPerdue

4 people found this helpful

The first plants didn’t have seeds

“Plants” is a pretty broad term covering a wide range of organisms, not all of which reproduce sexually.The simplest plants are single-celled green algae.  They don’t have separate seeds; they’re just a single cell.  Some algae have just a single set of chromosomes; others chromosome pairs.  You get double chromosomes when two algae merge, giving you a unique organism that can the reproduce.  Sometimes it will reproduce by simple fission, giving you two new organisms with unique single-chromosome genomes. The history of plants goes from single-celled algae to simple clusters of algae (with different genomes) to multicellular algae with a single genome but different cells performing different tasks called Charophytes.  They spawn special cells with half genomes (like our own sperm and egg cells) that go out and find other gametes from other charophytes, but they don’t distinguish separate male and female genders.  You can think of these as alternating between half-genome generations (“haploid”) and full-genone generations (“diploid”).  Looked at that broadly, animals do the same thing: you give rise to a generation of haploid cells (sperm or eggs) that merge with somebody else’s next generation to form the subsequent generation of diploid humans.  It’s only our conceit that makes the human generations more important than the haploid generations; as far as the sperm and egg are concerned, humans are just ways to make more sperms and eggs. Actual seeds and pollen came even later, with the seed plants called “spermatophytes”.  That involved several different evolutionary steps, but it started with the charophytes developing specialized male and female gametes.  Later, after the development of the other characteristics of true plants (embryophytes).  The embroyphytes are actually relatively recent; they evolved on land rather than in the sea. There are some aquatic embryophytes, but in fact they’ve moved into the sea from land rather than the other way around. They have specialized sex organs, unlike the charophytes, but they don’t have separate egg and pollen cells. That was yet another evolutionary step, the spermatophytes, which is what you think of when you say “plant”.  That happened when some of the plant’s reproductive system (the rest of the organs) began to encase the fertilized seeds for greater durability, enabling them to spread a lot further inland.  They conquered the world. That’s why you think of them as “plants”, even though there are so many plants without seeds.  The charophytes had other descendants that don’t produce seeds, like ferns and mosses.  These may actually have derived from the seed plants.  Tracing down the evolutionary path is best done with gene sequencing, and while they’re sequencing things as fast as they can it’s still an expensive and time-consuming process. The upshot is that no, “seeds” didn’t just mysteriously appear one day.  The evolutionary history of plants is long and complicated, with a lot of side journeys and dead ends along the way.  I’ve only barely touched on it, what you’d find in any introductory biology textbook.  There’s a lot more to know about it, but I’ve let this answer go on long enough.

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Answer from Ancient_Hacker

4 people found this helpful

Well…

Well first you have to define “Plant”.   Let’s go with a living thing that uses chlorophyll to capture energy.The first “plants” did not look like your average Dandelion.  They were probably derived from blue-green algea,  which are very very very old.  Eventually they added more of the chlorophyll and depended more on sunlight.  Then they stumbled on the idea that  it was beneficial to stick together into larger and larger groups, like colonies.  Eventually some specialized into stronger cells for plant strength, others specialized into root hairs to get more water.  Up to here they’ve been reproducing asexually-by splitting or budding.   Eventually they stumbled upon sequestering the DNA into certain cells and spilling those around.  Some even found an advantage into splitting the genetic material into two parts, that was the invention of sex!

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Ancient_Hacker 53 months ago

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ar to reproduce. The leap from single cell organisms to multi cell organisms is unknown, and there are many theories.

I think the plants you refer to have roots and leaves and reproductive organs that produce seeds. Evolution states that these plants evolved from simpler plants, but nobody knows the exact evolutionary path from single cells, to plants without seeds, to plants with seeds. The link below gives a lot more data about each phase.

I hope this helps