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
ruslelena [56]
2 years ago
13

There are no billion-year-old main-sequence o- or b-type stars. a. True b. False

Biology
1 answer:
Nataly [62]2 years ago
7 0
True I’m pretty sure! Hope I helped
You might be interested in
Which of the following is not an assumption that is critical to the scientific method
jeyben [28]
The answer would be D. Empiricality. Scientific Method can not, and will not deal with studies that are either for logic or for theism. This field may be beyond the scientific confirmability, meaning, it can not be proven by science, one example of this is the existence of a primary mover, or a God.
6 0
3 years ago
What are the chararistics meoisis include
vlada-n [284]
Meiosis is a kind of cell division.
it's used to reduce half of the chromosomes and prodouce 4 gamete cells, which we call these cells haploid.
for example, it is used in human reproduction, for the sperm and ovum, in order to have a sexual reproduction.
the offspring of them are genetically non identical to the parent.
8 0
2 years ago
The bThe building blocks of DNA are
Varvara68 [4.7K]
I did not quite understand that but in pretty sure it is b
6 0
2 years ago
What macromolecule is the most common in the item in the picture?
Rama09 [41]

Answer:

If that is a picture of DNA, then nucleic acids are the most common macromolecule

Explanation:

5 0
2 years ago
Which phrase does not describe a way the human body responds to fight disease
nydimaria [60]

Answer:

The question is incomplete as options was not given. Here is the complete question:

Which phrase does not describe a way the human body responds to fight disease?

(1) destruction of infectious agents by white blood cells

(2) production of antibodies by white blood cells

(3) increased production of white blood cells

(4) production of pathogens by white blood cells

Explanation:

Answer is option 4, PRODUCTION OF PATHOGENS BY WHITE BLOODS CELLS.

During the fight against diseases by human, the white blood cells otherwise called leukocytes are involved in the protection of the body against infectious agents and pathogens, do not produce more pathogens rather antibodies to fight against the invading pathogens.

There is increased production of white blood cells during infection by pathogens, the infectious agents are destroyed by the white blood cells and the production of antibodies against the pathogens.

6 0
3 years ago
Other questions:
  • How is a class system different from a caste system?
    9·1 answer
  • For measuring the height of this tree in the savanna biome, which of these units of measurement would be MOST meaningful to the
    7·1 answer
  • 4. Cats have a gene that codes for the color of their fur. Suppose that a certain breed of cat can have black, gray, or white fu
    8·2 answers
  • Biology may be defined as the ______ of ________ according to your lesson. o.o
    9·1 answer
  • Choose all the true statements about protein digestion and hydrolysis.
    14·1 answer
  • Which enzyme seals nicks and joins okazaki fragments? dna polymerase i dna gyrase dna primase dna ligase dna helicase?
    11·1 answer
  • Some frog species only have one leg.
    10·2 answers
  • Jordan is making a model of a cell. Where should he place all of the cell's organelles?
    5·2 answers
  • What type of reproduction does not involve a male and female cell?
    5·2 answers
  • What enzyme allows a retrovirus to make dna from an rna template?.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!