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Shalnov [3]
3 years ago
6

Helllppppp !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Biology
1 answer:
Inessa05 [86]3 years ago
3 0
B. External stimulus
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3 rules that can identify chemical reactions
lesantik [10]

Answer:

1)colour change

2) fizzing or bubbling

3)odour change

Explanation:

you can also say temp change, formation of a precipitate or smoke being formed but those are the main 3 i know

3 0
3 years ago
Class Domain Family Genus Kingdom Order Phylum Species Taxonomy hominidsix kingdom system This is the study of grouping and nami
agasfer [191]

Your answers would be:

1. Taxonomy

2. Genus

3. Species

4. Phylum

5. Class

6. Order

7. Family

8. Kingdom

9. Domain

10. Six Kingdom System

11. Hominid

1.Taxonomy is the practice of categorizing organisms and naming them. All organisms are classified into specific groups and are then given a scientific name.

2. Genus is one of the more specific grouping and it is the genus that makes up the first part of the scientific name. The organisms are grouped based on their characteristics, traits, qualities and/or features.

3. Species is the most specific among all classifications. It is distinguished though as the group that categorizes organisms based on their ability to reproduce with each other.

4, Phylum is one of the broader categories/groups. They distinguish the different organisms based on their characteristics also but are not as specific. It divides the different kingdoms into smaller groups. For example, Kingdom Animalia would have phylum chordata which includes all vertebrates.

5. Class divides phylums down into more specific features. For example, phylum chordata is divided further into classes such as mammalia (mammals), reptilia (reptiles), Aves (birds), amphibia (amphibians), and the like.

6. Order again, is more specific. It divides classes into different groups once again. So for example, for humans, we are classified as Class mammalia and then we belong in the order of primates.

7. Family on the other hand comes after order. It is more specific and comes right after order. Again, using humans as an example, our family is hominidae, which puts organisms that are distinguished for their ability of walking upright.

8. In the Linean biological taxonomy the highest classification was Kingdom. In his classification system, organisms were divided into only 3 kingdoms. As technology and discovery expanded, we have added to it.

9. Domain is the higher rank than kingdom. It is the broadest among all. There are three main domains now, we have Eukaryota, Arachaea, and Bacteria. In the old system

10. The 6 Kingdom System is the most recent classification system. The organisms are divided into 6 kingdoms:

  • Animals
  • Plants
  • Protists
  • Fungi
  • Archaebacteria
  • Eubacteria

11. Hominid is a member of Hominidae family. These are species that share about 97% similarity to the DNA of the modern human. The species included in the hominid family have simple cultures and have a capacity to communicate through language.

7 0
3 years ago
What is the name of the particle that circles the nucleus of an atom?<br>​
LiRa [457]

Answer:

Electron

Explanation:

The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.

Symbol= e-

Mass= 9.10938356×10-31 Kg

It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.

He constructed the glass tube and create vacuum in it. He applied electric current between electrodes. He noticed that a ray of particles coming from cathode to wards positively charged anode. This ray was cathode ray.

Properties of cathode ray:

The ray is travel in straight line.

The cathode ray is independent of composition of cathode.

When electric field is applied cathode ray is deflected towards the positively charged plate.

Hence it was consist of negatively charged particles.

While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.

Symbol of proton= P+  

Symbol of neutron= n0  

Mass of proton=1.672623×10-27 Kg

Mass of neutron=1.674929×10-27 Kg

6 0
4 years ago
In a flower garden, the gardener has purple and white pansies. He notices that a new pansy has sprouted. When it finally flowers
user100 [1]
It is expected that one of the offspings might be lavender as lavender is also a type of violet color, only lighter because of the white color parent. Offsprings have genes that are obtained from the mother and father gametes which hybrid sometimes to form separate genes.
4 0
3 years ago
Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. Once a virus gains entry to the body
Amiraneli [1.4K]

Answer:

B

Explanation:

I personal will go with B cause viruses attack your immune system then destroy healthy cells then copy it self through out the rest of the body.

6 0
3 years ago
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