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kotegsom [21]
3 years ago
14

When one opens a door, which part of the brain is responsible for sending signals to the arm muscles, causing one to open the do

or?
Biology
1 answer:
omeli [17]3 years ago
4 0
Answer M1 motor cortex
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List five conditions that can disrupt genetic equilibrium and cause evolution to occur
Colt1911 [192]
1. Non random mating
                                    In genetic equilibrium individuals must mate at random. However, in many species, individuals select mates based on heritable traits, such as size, strength, or coloration, a practice known as sexual selection.

2. Small population size
                                        Genetic drift does not have major effects on large populations but can affect small populations. Thus evolutionary change due to genetic drift happens more easily in small populations.

<span>3. Immigration or Emigration
                                                 Individuals who join a populations may introduce new alleles into the gene pool. Likewise individuals who leave may remove alleles from the gene pool. Any movement of individuals into (immigration) or out of (emigration) a population can disrupt genetic equilibrium, a process know as gene flow.

4. Mutations
                   Individuals who join a populations may introduce new alleles into the gene pool. Likewise individuals who leave may remove alleles from the gene pool. Any movement of individuals into (immigration) or out of (emigration) a population can disrupt genetic equilibrium, a process know as gene flow.

5. Natural Selection
 if different genotypes have different fitness, genetic equilibrium will be disrupted, and evolution will occur.</span>
6 0
2 years ago
What is true about two different cell types in the body?
Irina18 [472]

Answer:

Read It and Understand

Explanation:

There are over 200 different cell types in the human body. Each type of cells is specialised to carry out a particular function, either solely, but usually by forming a particular tissue. Different tissues then combine and form specific organs, where the organ is like a factory where every type of cell has its own job.

4 0
2 years ago
Read 2 more answers
Name three organelles and how they support life within the cell
frozen [14]
_RER: (rough endoplasmic reticulum)
it's role is to carry the ribosomes(subunits)
_mitochondrion: gives energy for the cell for its motility
_golgi body: responsible for maturation of the protein
6 0
2 years ago
2. In order to grow, animals with an exoskeleton must
Rzqust [24]

a.shed their skin..

Explanation:

Exoskeleton

A true exoskeleton, like that found in arthropods, must be shed (moulted) when it is outgrown. ... The new exoskeleton is still capable of growing to some degree, however. Animals of the order arthropoda, like lizards, amphibians, and many other animals that shed their skin, are indeterminate growers

3 0
2 years ago
6. Which is true of the light reaction of photosynthesis?
natta225 [31]

Answer:

It produces sugar

Explanation:

7 0
2 years ago
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