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zhuklara [117]
3 years ago
9

Experiment 1: symmetry in common objects post-lab questions 1. safety glasses bilateral symmetry safety glasses have a bilateral

symmetry because they are mirrored images of each side if they are cut exactly in the middle. 2. petri dish radial symmetry a pertri dish is radial symmetry as
Biology
1 answer:
dangina [55]3 years ago
0 0
A petri dish is radial symmetry because it has similar parts regularly arranged around a central axis. A petri dish can be divided into the same half with the center of the top or bottom of the petri dish. This symmetry is also found in animals like the star fish and jelly fish
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Compare sympathetic division vs parasympathetic division
swat32

Answer;

Parasympathetic nervous system Sympathetic nervous system

Introduction The parasympathetic nervous system is one of the two main divisions of the autonomic nervous system (ANS). Its general function is to control homeostasis and the body's rest-and-digest response. The sympathetic nervous system (SNS) is one of two main divisions of the autonomic nervous system (ANS). Its general action is to mobilize the body's fight-or-flight response.

Function Control the body's response while at rest. Control the body's response during perceived threat.

Originates in Sacral region of spinal cord, medulla, cranial nerves 3, 7, 9, and 10 Thoracic and lumbar regions of spinal cord

Activates response of Rest and digest Fight-or-flight

Neuron Pathways Longer pathways, slower system Very short neurons, faster system

General Body Response Counterbalance; restores body to state of calm. Body speeds up, tenses up, becomes more alert. Functions not critical to survival shut down.

Cardiovascular System (heart rate) Decreases heart rate Increases contraction, heart rate

Pulmonary System (lungs) Bronchial tubes constrict Bronchial tubes dilate

Musculoskeletal System Muscles relax Muscles contract

Pupils Constrict Dilate

Gastrointestinal System Increases stomach movement and secretions Decreases stomach movement and secretions

Salivary Glands Saliva production increases Saliva production decreases

Adrenal Gland No involvement Releases adrenaline

Glycogen to Glucose Conversion No involvement Increases; converts glycogen to glucose for muscle energy

Urinary Response Increase in urinary output Decrease in urinary output

Neurotransmitters neurons are cholinergic: acetylcholine neurons are mostly adrenergic: epinephrine / norepinephrine (acetylcholine)

4 0
3 years ago
A wave in which the particles of the medium move at right angles to the direction in which the
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Answer:

A transverse wave

Explanation:

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3 years ago
What 3 functions do proteins have in a plasma membrane?*
Aliun [14]

Answer:

Explanation:

Proteins in the plasma membrane have several functions based on their components, location etc. For instance, if the protein transcends the entire plasma membrane it could be a transport protein, responsible for the import and export of certain molecules between the cell and the extracellular matrix (ECM). If the proteins are resting at the surface of the cell, facing the ECM, their role could be to detect components in the ECM, relaying a series of messages back to the nucleus so that the cell can ‘decide’ what it should do with this information (is it being told it should undergo apoptosis, should it begin to divide, should it migrate?). As well as this, it could be involved in the detection of foreign bodies such as pathogens. This is an extremely job for these proteins because if the cell does come in contact with a pathogen, the cell can use these proteins to engulf the pathogen and through a series of steps, present the antigen on their major histocompatibility complexes (either 1 or 2 depending on the cell type) or HLA’s for human cells. Thus it can be concluded that protein functions vary widely in the plasma membrane and due to the vast number of proteins that can be found there, it’s difficult to narrow down the exact main of functions of all these proteins put together.

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4.) ...many earthquakes are known to occur
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What is arificial selection?
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The answer to your question is c.

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