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
Leviafan [203]
2 years ago
10

Which part of the eye dilates and contracts to control the amount of light reaching the inner eye?

Biology
1 answer:
Tamiku [17]2 years ago
3 0
It is the Iris I believe. It controls the diameter and size of the pupil, controlling the amount of light reaching the retina.
You might be interested in
Carrying capacity is Group of answer choices seldom reached by marine producers and consumers because of the vast resources of t
-Dominant- [34]

Answer:

the maximum population size that a particular environment can support.

Explanation:

A population can be defined as the total number of living organisms living together in a particular place and sharing certain characteristics in common.

Generally, these populations may be divided into a fraction of the population (subpopulation) based on certain factors and reasons.

Population regulation can be defined as a biological process that balances limiting factors affecting the growth of a population based on density. The factors that regulate the growth of a population are divided into two (2) main categories and these includes;

I. Density-independent factors.

II. Density-dependent factors.

Density-dependent are regulating factors such as predation, diseases, and competition that affect the size of the population of living organisms through decreasing or increasing mortality and birth rate.

Furthermore, density-independent factors do not have an increasingly greater effect as a population's density increases. Thus, its effect are reduced as a population's density increases in size.

Carrying capacity is the maximum population size that a particular environment can support. The carrying capacity of an environment is denoted by the letter k.

5 0
2 years ago
The fact that all organisms have DNA as their genetic material is evidence that
Alchen [17]
All organisms descended from a common ancestor
4 0
2 years ago
The population in South Africa is more prone to sickle cell anemia (genotype "ss"). People with genotype "ss" survive only up to
lions [1.4K]
The answer is stabilizing selection.

<span>Sickle-cell anemia is a recessive disorder caused by the presence of two recessive alleles "s", so genotype is "ss". This disorder is characterized by sickle hemoglobin. In an area with malaria, heterozygous individuals "Ss" (with one dominant allele and one recessive allele) have an advantage. These individuals will have both normal and sickle hemoglobin. But pathogen that causes malaria affect only normal hemoglobin, so heterozygous individuals will have half of the hemoglobin resistant to the pathogen and those individuals are resistant to malaria.</span>

Stabilizing selection favors heterozygotes Ss,  disruptive selection favors dominant (SS) and recessive (ss) homozygotes, while directional selection favors dominant (SS) or recessive (ss) homozygote. Since in this example, people with genotype Ss (heterozygotes) are in advantage, then this is an example of stabilizing selection.

7 0
3 years ago
What are the steps taken for the conservation of rare animals in nepal​
emmasim [6.3K]

Answer:

the steps are

we need to keep tight security system in forest area

hunting of animal must be stopped

3 0
3 years ago
Guinea pigs have 16 chromosomes. How many chromosomes are in guinea pig egg cells?
maria [59]
The answer is A 16...........

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the name for the percentage of space not occupied by solid matter in soil?
    5·2 answers
  • One possible explanation for the evolutionary survival of homosexuality is antagonistic pleiotropy. what would that mean, as app
    8·1 answer
  • Which process causes Earth to lose thermal energy to space?
    6·2 answers
  • Jenna found a mushroom growing at school. Which question can a dichotomous key help her answer?
    15·2 answers
  • What are plasmids? A. enzymes that bond genetic material together B. simple organisms with only one chromosome C. enzymes that c
    12·2 answers
  • The circulatory system works best with which other body system to supply the body’s cells with the nutrients they need?
    13·2 answers
  • A family has a Y-linked disease that affects the father. What is the chance of a male offspring inheriting the same disease?
    11·1 answer
  • Question 24 (5 points)
    14·2 answers
  • If the amount of glucose is increased for an animal so what will happen
    9·1 answer
  • How are girdles used in turtle respiration and be able to describe the morphology of turtle respiratory system in regards to inh
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!