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
Novay_Z [31]
3 years ago
11

Sergei Winogradsky Choose one: A. discovered microbial fermentation. B. developed a pure culturing system using agar. C. identif

ied microbes using biotechnology. D. discovered chemolithotrophs in natural environments.
Biology
2 answers:
NeX [460]3 years ago
7 0

Answer:

D. Discovered chemolithotrophs in natural enviroments.

Explanation:

Sergei Winogradsky was a russian microbiologist. He observed in his research with genus of bacteria <em>Beggiatoa, </em>they were able to oxidize hydrogen sulfide as an energy source. Being the first example known of lithotrophs (organisms that use inorganic substrate in order to obtain energy).

alex41 [277]3 years ago
5 0

Answer:

The correct answer is option D. "discovered chemolithotrophs in natural environments".

Explanation:

Sergei Nikolaievich Winogradsky was a ecological and soil scientist famous for being a pioneer for the definition of the concept of cycle of life. Winogradsky is also known for being the first scientist who discovered chemolithotrophs in natural environments. He made this achievement during his research with Beggiatoa in 1887, reporting that this organism was able to oxidize hydrogen sulfide as an energy source.

You might be interested in
3. Which of the following scenarios is least likely to be associated with a population exceeding
elena55 [62]

Answer:

3. B. no new mating partners are available

7. D. best adaptations

8. C. survive and reproduce

Explanation:

Carrying capacity refers to the maximum population size of a species/population in a particular habitat. The carrying capacity depends on abiotic (e.g., shelter, water) and biotic factors (e.g., food, presence of mates). According to the evolutionary theory, individuals better adapted to their environments are more likely to survive and reproduce (i.e., produce more offspring) than other members of the same species. These 'better adapted' individuals will have more chances to pass their 'beneficial alleles' to the next generation.

4 0
2 years ago
Total lunar eclipses last for?
vlada-n [284]

<em>The Jan. 21</em> total lunar eclipse will be the last one until May 2021, and the last one visible from the United States until 2022; the most recent total lunar eclipse previous to this one appeared in July 2018.

4 0
3 years ago
Read 2 more answers
Which statement describes an invasive species? OA. It is a native species that has no predators. O B. It is a nonnative species
iren2701 [21]

Answer:

B

Explanation:

;3

5 0
3 years ago
Which two organisms in the food web would MOST LIKELY be affected by a decrease in producers, or the plants, at the bottom base
34kurt

Grasshopper and cricket are two organisms in the food web would MOST LIKELY be affected by a decrease in producers, or the plants, at the bottom base of the food web.

D) grasshopper and cricket

<u>Explanation:</u>

A food web comprises of many food chains. An evolved way of life just follows only one way as creatures discover food. It is an enormous number of plants and creatures things. A food web shows a wide range of ways plants and creatures are associated with one another for their prey.

Though Grasshopper and cricket are two living beings in the nourishment web that would be generally influenced by a diminishing in makers, or the plants, at the base of the nourishment web.

Like every living life form, crickets and grasshoppers assume a significant job in keeping up the equalization of the biological system. They breakdown plant material, restoring soil minerals. They are also an important source of food for other animals.

8 0
3 years ago
If an organism has a diploid number of 6 chromosomes, how many different combinations of maternal and paternal chromosomes are p
Alexxandr [17]

The different number of maternal and paternal chromosomes possible will be 8. that is option A is correct.

Chromosomes are defined as the genetic material within the body. They are thread like structures within the DNA and are made of proteins. In general human body has 23 pairs of chromosomes out of which 22 are numbered while 1 is the sex chromosome. Gametes are genetic material that are generally haploid in nature and they carry only one chromosome along with them. According to the question, there are 6 diploid chromosomes present which means there are 3 pairs of chromosomes. So each gametes will have a total number of 3 chromosomal pairs irrespective of their type that is maternal or paternal. Therefore combination of maternal and paternal chromosomes are given by

Combination = 2ⁿ where n is pair of chromosomes and here n = 3

Combination = 2³ = 8

Learn more about chromosomes at:

brainly.com/question/11912112

#SPJ4

Complete Question :

If an organism has a diploid number of 6 chromosomes, how many different combinations of maternal and paternal chromosomes are possible in its gametes?

A. 8

B. 12

C. 3

D. 16

E. 6

8 0
1 year ago
Other questions:
  • How does changing and organism's habitat affect the number and variety of organisms present?
    11·1 answer
  • Most heritable differences are due to
    10·2 answers
  • Which statements are correct about Medicaid and Medicare?
    6·1 answer
  • Which food contains the material needed to build muscle, but does not contain the macromolecules that give quick energy?
    10·2 answers
  • which of these minerals and mineral resources is composed of the remains of ancient marine organisms?
    11·2 answers
  • Why might scientist be interested inn making transgenic organisms
    14·1 answer
  • Which of the following statements illustrate how fossils record the evolution of defensive mechanisms over time? which ever one
    6·1 answer
  • What am I?
    9·1 answer
  • If water is at 26 degrees c and has a salinity of ____, its density is 1.023 g/cm3
    9·1 answer
  • An explanation for behavior must be __________ and __________ to be considered a scientific theory. A. Repeated. . . Recorded B.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!