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
frosja888 [35]
3 years ago
14

Piaget believed that _________ are schemes reflecting an infant's repetition of interesting or enjoyable actions that focus on t

he infant's own body. An example of this might be an infant putting its thumb in its mouth and sucking.
Biology
1 answer:
Semenov [28]3 years ago
7 0

Answer: Primary circular reactions.

Explanation: Primary circular reactions according to Piaget involve activities which makes the infant focused on its own body, while secondary circular reactions involve activities where the infant's actions relate to the outside world, and are both enjoyable, and repeated.

You might be interested in
A population of wild-flowers was scored for flower color. There were 302 blue (BB) plants, 1857 violet (BR) plants and 811 red (
Paul [167]

Answer:

frequency of the blue (B) allele = 0.4142

frequency of the red (R) allele = 0.5858

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

Explanation:

Frequency of blue allele is

Frequency of blue allele is equal to sum of frequency of BB and half of frequency of BR

\frac{302}{2970} + \frac{1}{2} \frac{1857}{2970} \\= 0.1016 + 0.3126\\= 0.4142

Frequency of other allele

1- 0.4142\\= 0.5858

Chi Square test

See the attached file

The number of blue plants expected is 509.652

The number of red plants expected is 1019.304

The anticipated number of violet plants is 1441.341

Calculated chi square value

= 84.5320 + 42.5688 + 119.8692\\= 246.97

7 0
3 years ago
Which of the following describes the ability of a single gene to have multiple phenotypic effects?
bija089 [108]

Answer:

A, pleiotropy.

Explanation:

Pleiotropy - genes that have multiple phenotypic effects. Remember that phenotype means a physical characteristic caused by a gene, such as eye color or fur patterns.

Incomplete dominance - when neither allele is dominant and they mix together in the phenotype. A popular example is a red flower crossing with a white flower and resulting in a pink flower.

Epistasis - when two genes contribute to the phenotype, but one gene completely masks another gene. An example would be labrador fur colors.

Multiple alleles - 3 or more alternative forms of a gene, but only 2 alleles can occupy an organism. An example is blood type.

Hope this helps!

4 0
3 years ago
How do the lymph and immune systems depend on the cardiovascular system?
kari74 [83]
The correct option is C.
The heart is part of the cardiovascular system. The heart pump the blood round the body several times in a day. The blood is made up of several types of cells which carry out specific function in the body, these include the white blood cells which serves as soldiers of the body. The lymph refers to the fluid that circulate throughout the lymphatic system. Both the blood and the lymph are carried round the body by the cardiovascular system during the process of circulation.<span />
7 0
3 years ago
Explain why disease alleles for cystic fibrosis (CF) are recessive to the normal alleles (CF+), yet the disease alleles responsi
Korvikt [17]

Answer:

Cystic fibrosis mutation is recessive to normal allele because only one functional or normal allele is enough to produce a functional protein. So, if mutation is present in one allele then also, a normal protein can be made from normal allele. The presence of normal protein prevents the expression of disease.

In addition, mutated allele only results in the loss of function of protein which can be compensated by the expression of normal allele. It does not add any toxic effect to the protein. Consequently, the disease is inherited in autosomal recessive fashion.

In contrast, Huntington mutation not only alters the structure of the functional protein but also adds toxicity to it. The altered protein is enable to interact with 100s of other proteins and inhibit or decrease their function. So, if only one allele is present then also, the mutated protein will be produced and it will result in the phenotype. Consequently, it is inherited as autosomal dominant fashion.

4 0
3 years ago
What is the difference between plant cells and animal cells<br>​
marin [14]
A plant cell contains a large, singular vacuole that is used for storage and maintaining the shape of the cell. In contrast, animal cells have many, smaller vacuoles. Plant cells have a cell wall, as well as a cell membrane. ... Animal cells simply have a cell membrane, but no cell wall.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Strep throat and bacterial pneumonia are examples of __________.
    7·2 answers
  • How does your body adapt surface area-to-volume ratios to help exchange gases?
    6·2 answers
  • What is the effect of tsh and where is it produced?
    15·1 answer
  • Helpp aquatic questionnnnn will give brainliestt and most points i can​
    15·1 answer
  • If you are driving into sun glare from bright sunlight, you can reduce glare and eye strain by
    10·1 answer
  • You would expect to find ____________ fibers in areas that undergo a lot of stretch and rebound.
    12·1 answer
  • Earth Science
    7·1 answer
  • Q: A: Which of these best describes what occurs during cytokinesis?
    7·1 answer
  • A plant cell has too many nutrients moving in and out of it. Which organelle most likely is not functioning correctly?
    7·1 answer
  • In which two ways does a hummingbird’s nervous system help it’s body’s cells get nutrients
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!