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
Lilit [14]
3 years ago
15

1. Mike injured his knee while playing. Examination revealed that the injured area was red, swollen, and warmer than the surroun

ding area. What does this condition indicate?
an inflammation

a tumor–like growth

a hemorrhage

2. When a virus invades the body, some B cells recognize it as nonself and produce plasma cells that release a substance to kill the virus. What is this substance called?

antigen

antibody

pathogen

3. Which of the following forms blood clots?

fibrin

macrophages

thrombin


4. An antigen has invaded a mammal's body. Specific immune cells engulf and ingest it. Some of the digested pieces are displayed on the cells' bodies. What happens next?

B cells are activated and release antibodies.

T cells are activated and produce clones.

B cells withdraw the immune response as the antigen is killed.
Biology
1 answer:
xxMikexx [17]3 years ago
5 0
1. Inflammation

2. Antibody

3.Thrombin

4. B cells are activated and release antibodies.
You might be interested in
Why would the guard cells have chloroplasts when the other skin cells of leaf does not have chloroplasts?
larisa [96]
Chloroplasts are the tiny structures in plants cells where photosynthesis happen. chloroplasts contain chlorophyll , a green pigment that absorb light energy for photosnthesis
5 0
3 years ago
Which renewable energy source depends on changing water levels?
Artist 52 [7]

Answer: Ultimately, the sun powers all major renewable energy technologies except geothermal and tidal power

Explanation:

The sun drives atmospheric processes that result in wind for wind power, plant growth for biofuels, and water evaporation that makes hydropower possible.

5 0
3 years ago
Read 2 more answers
Which of the following would make the best index fossil?
Citrus2011 [14]

Answer: I would go with B. Here’s why: An index fossil is usually easily recognizable, and underwent a wide geographic distribution. What leads me to believe B is the correct answer, is because it’s something that existed “ all over the world”.

5 0
3 years ago
The four types of macromolecules in cells are nucleic_________<br> lipids, proteins, and_____
brilliants [131]

The four types of macromolecules in cells are nucleic acids, lipids, proteins, and carbohydrates.

8 0
3 years ago
Read 2 more answers
Notice that most of the plants Muir came across in his journey were from the phylum Anthophyta. Why does it make sense that thos
svet-max [94.6K]
<h2>Phylum Anthophyta</h2>

Explanation:

Phylum Anthophyta is the phylum of flowering plants.

Bryophytes are group of seedless non-vascular plant.They are called the amphibians of plant kingdom because to complete their life cycle, they need both water and  land.

Anthophyta are dominant group than the bryophyta because:

  • They have a well developed vascular system.
  • They have their seeds enclosed within fruits and protective sed coat that keep them viable for a long time.
8 0
4 years ago
Other questions:
  • Norah observes some velvet-green growth on a tree trunk. When she picks up one of these plants, she notices that the plant has a
    7·2 answers
  • The point where the muscle attaches to the more movable bone in a joint is referred to as the , and the point where the muscle a
    5·1 answer
  • it is possible that the earth's moon is a significant factor for life on earth because the moon may have assisted with _____.
    13·2 answers
  • What determines the traits of offspring
    11·2 answers
  • Specialist in the genitourinary system of males and the urinary system of females
    15·1 answer
  • Which of the following is transmitted by Aedes mosquitoes?A. yellow feverB. both dengue fever and yellow feverC. malariaD. dengu
    8·1 answer
  • What is the difference between a recessive and a dominant trait
    14·2 answers
  • A species of finch has been studied on one of the geographically isolated Galapagos Islands for many years. Since the island is
    9·1 answer
  • Describe how structure is related to function for transport proteins
    13·2 answers
  • What is the elevation of hachure line A?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!