1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Stella [2.4K]
3 years ago
10

Help brainliest involved!!:)

Biology
2 answers:
Ymorist [56]3 years ago
4 0

Answer:

the anwser is <u>B. Scrapings from his teeth</u>

Explanation:

hope this helps :)

marin [14]3 years ago
4 0

Answer:

Scrapings from his teeth

Explanation:

He described 'moving animals' in the plaque between his teeth

You might be interested in
Examples of bacteriophage​
dalvyx [7]

Examples of bacteriophages are: 1) Temperate phages (mu and lambda) 2) Filamentous and spherical phages , both having ssDNA (single stranded DNA)

5 0
3 years ago
How does crossing over add to the genetic diversity of sexually reproducing organisms?
neonofarm [45]
<span>Crossover is the first way that genes are shuffled to give rise to genetic diversity. Crossover takes place in sexual reproduction. Chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other. When they break at the same place (locus) in the sequence of base pairs, the result is an exchange of genes called genetic recombination. That is the normal way for crossover to occur. Genetic recombination ensures that the daughter cells produced have a different genetic makeup from the parent cell and thus diversity is created.</span>
8 0
4 years ago
Which characteristics do all bacteria and archaea have in common?
Alex Ar [27]

Answer:

c

Explanation:

6 0
3 years ago
Read 2 more answers
A zoology student is investigating whether it is true that the gender of turtles depends on the temperature at which the turtle
Aleonysh [2.5K]
The temperature is the independent variable. The independent variable is the variable that the researcher can control. And the dependent variable will change because of the change of independent variable. In this question, the student controls the temperature(independent variable) to see wether the gender(dependent variable) will change due to the temperature.
4 0
3 years ago
Read 2 more answers
Life is organized into increasingly smaller levels-populations are made of organisms, organisms of organ systems, organ systems
marshall27 [118]

There are two questions (1 and 2), answer are provided as such. The cha

Answer to Question 1

Population --> Whole Organism --> Organ system --> Organ --> Tissue --> Cell

Explanation:

- The cell is the simplest, basic and functional unit of life.

- Tissue is a collection of similar cells e.g brain tissue

- Organ is a collection of similar tissues e.g Liver, Lungs

- Organ system refers to a group of closely related organs performing the same function in an organism.

- Organism comprises of well-coordinated organ systems.

- Population refers to the total number of organisms living and breeding together.

Answer to Question 2

Cell --> Genome --> Gene --> Nucleotide

Explanation:

A cell consists of a nucleus and other organelles. Within the nucleus & other organelles like mitochondria lies the total genetic material of the cell known as GENOME.

- The genome contains several functional sequence of bases known as GENE.

- A gene is made of triplets of nucleotides (codons)

3 0
4 years ago
Other questions:
  • What happens when human body temperature rises during exercise?
    8·1 answer
  • Using an electron microscope, a scientist identified these cell structures in an unknown organism: mitochondrion, nucleus, cell
    10·1 answer
  • PLEASE HELP ASAPPP !!! 15 PTS !!!
    12·2 answers
  • What is the process that uses sunlight to make and obtain energy for producers
    7·1 answer
  • The secretion of tears, milk, sweat, and saliva are functions of what tissue
    13·1 answer
  • What contribution did Jonas Salk make to science in the 1950s?
    7·2 answers
  • "both have no direct relationship but a free efficient expression binds them" what are they?
    6·2 answers
  • Which statement about anabolic reactions is true? Select one: a. None of these choices are correct. b. Anabolic reactions are en
    10·1 answer
  • I know it's in the wrong subject but I still need help ASAP save me
    13·2 answers
  • What is used to power the ATP Synthase?<br><br> Glucose <br><br> Hydrogen ions <br><br> Water
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!