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Marizza181 [45]
3 years ago
5

What are the 3 portions of the brain stem and what do each do?

Biology
1 answer:
Anarel [89]3 years ago
6 0

Answer: The brain stem is a terminology used to refer collectively to the midbrain, pons, and medulla oblongata.

Explanation:

The midbrain is composed primarily of the optic lobes, which receive and process visual information it is responsible for reflexes involving eyes and ears. Pons is responsible for the reticular activating system and visceral control. The Medulla Oblongata is responsible for the sensory nuclei, reticular activating system, and visceral control.

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3. In centaurs, the allele for curly tails (T) is incompletely dominant to the allele for straight tails (t). The hybrid genotyp
Reptile [31]

Answer:

a. Determine the allele frequencies of:

f(T) = 0.485 ≅ 0.48

f(t) = 0.515 ≅ 0.52

b. Determine the genotype frequencies of the exposed generation

  • F (TT) = 0.21
  • F (Tt) = 0.55
  • F (tt) = 0.24

the genotype frequencies of the next generation

  • F(TT) = 0.23
  • F(Tt) = 0.5
  • F(tt) = 0.27

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

Download pdf
3 0
3 years ago
Each year, earthworms move deep into soil during fall and winter and return toward spring and summer. what is the likely stimuli
o-na [289]

Answer:

Each year, earthworms move deep into soil during fall and winter and return toward spring and summer. The likely stimulis for this behavioral response are relative humidity & temperature. Since the nematode breathes via the skin, the mucus coating may become dry & the organism would die if exposed to extreme cold & dryness.

Explanation:

6 0
4 years ago
Cytoskeletal elements play important roles in cell division. The mitotic spindle apparatus is made of ________ and pulls sister
Veseljchak [2.6K]

Answer:

Cytoskeletal elements play important roles in cell division. The mitotic spindle apparatus is made of "microtubules" and pulls sister chromatids apart, whereas the contractile ring is made of "actin filaments" and required for the separation of daughter cells at the end of the mitotic phase of the cell cycle.

Explanation:

The three chief organizational apparatuses of the cytoskeleton are microtubules (formed by tubulins), microfilaments (formed by actins) and intermediate filaments. All three apparatuses cooperate with each other non-covalently. The cytoskeleton is composed of protein filaments and is found throughout the inside of a eukaryotic cell. The cytosol is the main component of the cytoplasm, the fluid that fills the inside of the cell. The cytoplasm is everything in the cell except for the cytoskeleton and membrane-bound organelles.

3 0
3 years ago
What biological macromolecule is made up
zmey [24]

Answer:

Proteins, carbohydrates, nucleic acids, and lipids are the four major classes of biological macromolecules.

Macromolecules are made up of single units known as monomers that are joined by covalent bonds to form larger polymers.

Explanation:

7 0
3 years ago
Some behaviors affect only individuals. For example, when a snake moves to the shade to cool off, no other animals are affected.
Oksanka [162]

Answer:

A bee dancing

Explanation:

This will attract other bees because basically their purpose for being alive is to make honey and the beginning of that process is obtaining nectar.

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3 years ago
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