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
cestrela7 [59]
2 years ago
12

The ________ is a substage lens that concentrates light on the specimen.

Biology
1 answer:
stiks02 [169]2 years ago
6 0

Answer:

microscope's condenser

Explanation:

The microscope's condenser is a substage lens that concentrates light on the specimen.

<em>The condenser of a microscope is a structure that helps concentrate light rays from the light source to illuminate the specimen on the stage of the microscope. It is made up of a system of lens that converges the ray of light and an aperture diaphragm that can be used to control the amount of light that gets to the specimen on the stage of the microscope.</em>

You might be interested in
Wind is considered to be an abiotic becomes it
Varvara68 [4.7K]
Wind is considered to be a biotic factor.
4 0
3 years ago
Beginning with a cell that just fertilized ( 1 cell ) how many times must it divide to become a 64 cell blastomere ?
natka813 [3]

A cell that just fertilized has to divide 6 times to form a 64 cell blastomere.

<u>Explanation:</u>

Human reproduction begins with the fusion of male gamete sperm and female gamete ovum. The fusion of sperm and ovum forms the zygote that is diploid. The zygote then undergoes mitotic division to develop into embryo.  

The zygote first divides into two and the two individual cells divide again to form four individual cells and so on. Thus the number of cells after each division can be represented by the equation 2^n  where n is the number of divisions.  in the question it is given that the blastomere has 64 cells.

2^n=64  

n=6

This means that the fertilized cell has to divide 6 times to develop into 64-celled blastomere.

7 0
3 years ago
What percentage of alleles are<br> homozygous recessive?<br> 50%<br> 25%
zepelin [54]
The percentage of alleles for homozygous recessive would be 50%
8 0
2 years ago
he most common source of osteomyelitis is an infection that migrates via the bloodstream. direct invasion from a fracture. surgi
Gennadij [26K]

The correct answer is A. An infection that migrates via the bloodstream

Explanation:

Osteomyelitis is a serious condition, in which an infection develops in bones. This causes symptoms such as pain, inflammation, and can lead to the spread of the infection to other tissues or bone necrosis if it is not treated. In terms of causes, this condition develops when the bone is exposed to bacteria or similar that causes the infection, this can occur during surgeries or fractures. However, the most common source of infection is via bloodstream this means the bacteria or germ is in the blood and it enters the bone through the bloodstream. Also, once the bacteria or germ is in the bone it causes the infection.

6 0
3 years ago
A bear is an omnivore.it wolud most likey eat
Ber [7]

Answer:

Bears eat plants, insects, fish, and animals.

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which process is directly responsible for root growth in plants?
    13·2 answers
  • Why might a baby be born early if the mother smokes?
    8·1 answer
  • State one reason why a molecule may not be able to pass into or out of a cell
    13·1 answer
  • What does not occur in interphase?
    14·1 answer
  • Ocean levels were much lower during the ice age than they are now because _______.
    5·1 answer
  • Two steel balls that are the same mass and size are rolled with the same force across different level surfaces.
    9·2 answers
  • In your own words, describe how DNA, mRNA, tRNA, ribosomes, and amino acids interact to build a protein.
    6·1 answer
  • Which of the following represents a way that animals in a zoo are influenced by their environment?
    7·2 answers
  • How does the endocrine system affect the excretory system?
    9·2 answers
  • Does green algae to water flea move from primary consumer to secondary consumer
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!