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
lapo4ka [179]
3 years ago
5

A bacteria culture starts with 200 bacteria and in 1 hour contains 400 bacteria. How many hours does it take to reach 2000 bacte

ria?
Biology
1 answer:
RSB [31]3 years ago
7 0

Answer:

At 0hr it was 200 bacteria

At 1 hr it doubled and was 400

Means: at every 1 hr the population of the bacteria doubles

400 bacteria = 1hr

2000 bacteria = X

X = 2000 × 1 / 400

X = 5 hrs

You might be interested in
NEED HELP DUE TODAY PLZ HELP ME!!!!
andrew-mc [135]
B) electron microscope ,
4 0
3 years ago
Read 2 more answers
Type of microscope that can maginify up to 2 million times
frutty [35]
They are called transmission electron microscopes.
4 0
3 years ago
A ship at sea has some basic needs. Without meeting certain functions, it cannot survive. What are the top six functional needs
Lena [83]

Answer:

11

Explanation:

8 0
3 years ago
An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described?
Finger [1]

Answer:

C. produced from magma.

D. formed at Earth’s surface

Explanation:

Earth crust refers to the outermost layer or thin shell which makes up the earth such as sedimentary, metamorphic and igneous rocks.

The Earth crust is typically made up of two (2) main types;

1. Oceanic crust: this crust has a thickness ranging from 5 km to 10 km and comprises of denser rocks such as diabase, gabbro and basalt.

2. Continental crust: this crust has a thickness ranging from 30 km to 60 km and comprises of minerals such as quartz, silicate, feldspar, aluminum and less dense rocks such as granite

An igneous rock has a coarse texture and is dark in color. Also, an igneous rock can be accurately described as being produced from magma and formed at Earth’s surface.

8 0
3 years ago
Read 2 more answers
Help guys plz :(
Yuki888 [10]

Answer:

Algae i believe

Explanation:

I say this because the earliest animal is comb jelly

3 0
3 years ago
Read 2 more answers
Other questions:
  • Select all the apply proteins__.
    14·1 answer
  • What is the bigger threat from an abrasion
    8·1 answer
  • When during fetal development do rhythmic breathing movements begin?
    8·2 answers
  • EXPLAIN YOUR ANSWER!!!
    9·1 answer
  • An astronomer wrote down the following observations regarding an object she recently discovered. Which piece of evidence disqual
    8·2 answers
  • Three different dynamic carts of different masses are rolled down a ramp. The heaviest one rolls down the ramp the fastest. Befo
    14·1 answer
  • After strenuous exercise a muscle cell would contain decreased amounts of
    10·1 answer
  • Which of the following describes a function of the endoplasmic reticulum within a cell
    15·2 answers
  • Punnett squares can be used to predict the probability of...
    5·1 answer
  • Enfermedades por deficiencia de fosforo
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!