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
Lyrx [107]
3 years ago
6

Why are disifectants alone not enough to kill an entire population of bacteria

Biology
1 answer:
Brums [2.3K]3 years ago
3 0
Because bacteria mutates that's why we have a new flu vaccine every year , because strains of DNA in the bacteria change all the time.
You might be interested in
I need this by 7:
zalisa [80]

Answer:

Earth can be divided into three main layers: the core, the mantle and the crust. Each of these layers can be further divided into two parts: the inner and outer core, the upper and lower mantle and the continental and oceanic crust. Both the inner and outer core are made up of mostly iron and a little bit of nickel.

Explanation:

3 0
3 years ago
What's another word for plant sex?
Sholpan [36]

Answer:

A. Photosynthesis

Explanation:

7 0
3 years ago
Read 2 more answers
Introduced species often take over an ecosystem because they usually what?
Firdavs [7]
Have very few or no predators in the new ecosystem.
6 0
3 years ago
Read 2 more answers
How did humanity start?
svetoff [14.1K]




Human evolution

Human evolution is the lengthy process of change by which people originated from apelike ancestors. Scientific evidence shows that the physical and behavioral traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years.
One of the earliest defining human traits, bipedalism -- the ability to walk on two legs -- evolved over 4 million years ago. Other important human characteristics -- such as a large and complex brain, the ability to make and use tools, and the capacity for language -- developed more recently. Many advanced traits -- including complex symbolic expression, art, and elaborate cultural diversity -- emerged mainly during the past 100,000 years.
Humans are primates. Physical and genetic similarities show that the modern human species, Homo sapiens, has a very close relationship to another group of primate species, the apes. Humans and the great apes (large apes) of Africa -- chimpanzees (including bonobos, or so-called “pygmy chimpanzees”) and gorillas -- share a common ancestor that lived between 8 and 6 million years ago. Humans first evolved in Africa, and much of human evolution occurred on that continent. The fossils of early humans who lived between 6 and 2 million years ago come entirely from Africa.
Most scientists currently recognize some 15 to 20 different species of early humans. Scientists do not all agree, however, about how these species are related or which ones simply died out. Many early human species -- certainly the majority of them – left no living descendants. Scientists also debate over how to identify and classify particular species of early humans, and about what factors influenced the evolution and extinction of each species.
Early humans first migrated out of Africa into Asia probably between 2 million and 1.8 million years ago. They entered Europe somewhat later, between 1.5 million and 1 million years. Species of modern humans populated many parts of the world much later. For instance, people first came to Australia probably within the past 60,000 years and to the Americas within the past 30,000 years or so. The beginnings of agriculture and the rise of the first civilizations occurred within the past 12,000 years.
Hope this helps:)

3 0
3 years ago
Read 2 more answers
What is the name of ewan mcGregor's character?
Ludmilka [50]
Do you mean for his filmography

6 0
3 years ago
Read 2 more answers
Other questions:
  • The dark brown organic material found in soil is called __________. Question 13 options: compost fertilizer humus sediment
    12·1 answer
  • How are cone cells adapted to carry out their function
    10·1 answer
  • I'll GIVE YOU BRAINLIEST!!! A company develops a new weed-killing chemical. When the chemical is first used, it kills nearly all
    6·1 answer
  • No matter how many common names an organism might have,it only has one ,,,, blank
    13·1 answer
  • Blood flow is regulated in all three types of blood vessels through ____________ and dilation.
    15·1 answer
  • What are negative effects of physical weathering on living things
    13·1 answer
  • what happened during the industrial revolution that led human activity to contribute to climate change?
    8·2 answers
  • During what part of the water cycle does the water from the surface of earth get back into the atmosphere? * precipitation run o
    12·1 answer
  • Fill in the blanks.<br> A train is comparable to ___.A train car is comparable to ____
    15·1 answer
  • Why do I exist? (IMPORTANT ANSWER NOW)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!