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
ValentinkaMS [17]
3 years ago
11

What does research say about the relationship between birth order, sibling spacing, and intelligence?

Biology
1 answer:
vesna_86 [32]3 years ago
6 0

Answer:

"Birth order and sibling spacing are unrelated to a child's intelligence."

Explanation:

The theory, put forward by Robert Zajonc, a psychologist at the University of Michigan, holds, in brief, that the greater the number of children in a family and the shorter the time between their births, the lower will be the intelligence of the children, particularly those born later. A mother's genetics determines how clever her children are, according to researchers, and the father makes no difference. Women are more likely to transmit intelligence genes to their children because they are carried on the X chromosome and women have two of these, while men only have one.

You might be interested in
Match these up
artcher [175]
5. to B.  3. to E.  2 to A. 1. to D. 4. i believe is C.
6 0
3 years ago
Acording to erikson what is the first stage of psychosocial development?
Lilit [14]

Answer:

The answer would be trust .vs. mistrust

Explanation:

This is the first stage

Mark as branliest please :)

7 0
3 years ago
When a horse and a donkey have an offspring, it is called a mule--a hybrid that cannot reproduce itself. Why are horses and donk
RUDIKE [14]

Answer:

Horses and donkeys are two different species but belong to the same family Equidae and the genus Equus. They both have different numbers of chromosomes.

Although they look quite similar in appearance, there are many dissimilarities.

The physical differences between horses and donkeys include:

Donkeys backs are flatter than horses.

Donkeys have smaller hoofs than horses.

Donkeys have longer and thicker ears than horses.

Horses tend to have a long face than Donkeys.

Horses have six vertebrates, while donkeys have only five.

Tails of horses and donkey differ. Horses have long tails, whereas donkey’s tail looks like a cow’s tail.

On the genetic level, the total number of chromosomes in the horse is 64 and donkey have 62 number of chromosomes. Mule is a hybrid of a female horse and a male donkey. Hinny is a hybrid of a female donkey and a male horse. Both the offspring (hybrid offspring) produced by donkeys and horses are infertile, sterile, cannot have its own offspring and both have 31 pairs of chromosomes each.

If the produced offspring is fertile then the animals are of the same species and if the produced offspring is sterile then they are of different species. Because of this, both horses and donkeys are considered as a separate species. A species is generally defined as a group of organisms, which are capable of interbreeding and creating viable offspring. In this case, mule and the hinny are not really a new species and are produced by two different species.

4 0
3 years ago
Read 2 more answers
Can somebody give me a list of decomposers? Also a definition?
konstantin123 [22]
Worms, Plants, Dirt. 
3 0
3 years ago
Read 2 more answers
Plantea un experimento que cumpla con todos los requisitos del método científico que refute la teoría de la generación espontáne
patriot [66]

Answer:o

J

Explanation:

Yess

6 0
2 years ago
Other questions:
  • Wind moving in two directions over a prairie makes air in the middle spin. This is the beginning of a
    8·2 answers
  • One unit of genetic information is called a
    14·1 answer
  • when two individuals who are heterozygous for a gene are mated, we would predict a dominant to recessive phenotypic ratio of____
    12·1 answer
  • Describe the information displayed by ecological pyramids Use all three pyramids (number, biomass, and energy in your answer.​
    5·1 answer
  • An interesting observation made by the firefighters was that some parts of the forest seemed to escape the flames. The crown fir
    12·1 answer
  • Which natural hazards are most likely to affect Florida, due to its geography? Check all that apply.
    8·2 answers
  • How do you think the Law of Universal Gravitation State connects why apples fall down and planets circle in orbit?
    8·1 answer
  • What are the products of photosynthesis? .-.
    11·1 answer
  • All of the following are general functions of a plant's apical meristem except _ (blank) _. Select one: a. carries out cell divi
    11·1 answer
  • Describe 4 differences between a bactrial cell and a plant cell
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!