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
Nataly_w [17]
3 years ago
13

Uring her pregnancy, lorraine has been extra careful to avoid foods that could potentially cause foodborne illness. even though

she loves greek salad, at lunch today she had to order something else because the waiter could not confirm whether or not the feta cheese on the salad was pasteurized. pregnant women should avoid unpasteurized cheese because ______ can cross the placental barrier, infect the fetus, and cause spontaneous ab
Biology
1 answer:
il63 [147K]3 years ago
4 0
Bacteria. Bacteria is used to produce some foods items hence can be present in high numbers. Pasteurisation minimizes bacteria count
You might be interested in
Levene made which contribution to our understanding of DNA structure? a. He determined that the nucleus contains DNA. b. He dete
Stels [109]

Answer:

The correct answer is  b. He determined that DNA contains four nitrogenous bases.

Explanation:

Levene was an American biochemist who studied the structure of DNA in the early 1900s and in 1920 he found that DNA consists of four nitrogenous bases that are Adenine, Guanine, Thymine, Cytosine.

He also found deoxyribose sugar and phosphate group and said that nucleotide is the basic unit of DNA which contains a ribose sugar with attached nitrogenous base and phosphate group.

He also concludes that an equal amount of adenine, guanine, thymine, and cytosine makes the DNA which is now known as tetranucleotide hypothesis. So the correct answer is b. He determined that DNA contains four nitrogenous bases.  

8 0
3 years ago
What role does base pairing play in the replication of dna ?
Naddik [55]

Answer:

It ensures that the two daughter molecules are exact copies of the parent molecule.

Explanation:

3 0
2 years ago
A glacier that covers a wide area is called
Zarrin [17]
It is a valley glacier
8 0
3 years ago
A plant cell with 02 M NaCl is
horrorfan [7]

Answer:

Water will diffuse into the cell.

Explanation:

As the NaCl conentration in cell is greater then in water so water will diffuses into the cell and NaCl will move out of the cell

4 0
3 years ago
According to the basic host–pathogen model, if the combined death and recovery rate from a disease doubles, and the effectivenes
S_A_V [24]

Answer:

A. decrease by half.

B. stay the same.

C. double.

Explanation:

Host-pathogen models resembels the host-parasite models and predator-prey which is used to evaluate the evolutionary strategies of pathogens.

The host-vector-pathogen system can be demonstarted as a change in the number of 4 types of people: healthy hosts, uninfected vectors, infected hosts, and infected vectors.

The threshold density should decrease by half, stay the same, or double, according to the standard host-pathogen model, if the combined death and recovery rate from a disease doubles, and the ability of the disease to spread from infected to uninfected persons.

Hence, the correct options are A. decrease by half, B. stay the same, and C. double.

6 0
2 years ago
Other questions:
  • What are the physical properties of slime?
    15·1 answer
  • Where does the matter in the body of an animal come from?
    7·1 answer
  • Thin filaments in skeletal muscle are composed of what four proteins
    13·2 answers
  • What is the most important organ in human body?
    8·2 answers
  • Classify the industries as primary secondary or tertiary
    14·2 answers
  • How have humans caused damage and change to each of the earths spheres
    7·1 answer
  • A man with type AB blood marries a woman with type A blood. What are the possible blood types of their offspring if the woman's
    15·1 answer
  • Clownfish live in sea anemones, which protect the fish from predators. The sea anemone isn't harmed and doesn't benefit from thi
    13·2 answers
  • What plan can you use to find out how a drought will affect a forest system?
    5·1 answer
  • A leading fruit juice manufacturing company wants to launch a new flavor in the market. For this, the company wants Information
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!