Na (Sodium) has a +1 charge.
An ion of calcium has a +2 charge, and an ion of chlorine has a -1 charge.
The charge of an aluminum ion is typically 3+.
A chlorine ion has -1 charge.
Beryllium is 2+ charge.
Flourine has -1 charge.
Lithium has +1 charge.
Iodine has -1 charge.
Oxygen has -2 charge.
Potassium has +1 charge.
Magnesium has +2 charge.
Phosphorus has -3 charge.
J. J. Thomson concluded what from his experiment
Answer:
He discovered all atoms contain tiny negatively charged subatomic particles or electrons with cathode ray tubes.
Explanation:
as letters are to English language, blank is/are to genetic information
Why do you think invasive species are more of a problem in human altered biomes (anthromes) than they are in a biome that has not been altered by human activities?
Answer:
invasive species are a problem both in anthropogenically altered and natural environments
Explanation:
An invasive species can be defined as a non-native species introduced into a new environment which then becomes abundant. Only in the US, it is believed that there are approximately 4,000 invasive species (some examples include the feral pigs, grey squirrels, European rabbits, etc.). In general, invasive species have a negative impact on the ecosystem, especially by displacing native species and thereby altering the trophic chain. In anthropogenically altered environments (anthromes), human beings are considered to be an invasive species.
Which state of matter will take both the volume and shape of the container that holds It?
Answer:
gases
Explanation:
in the gas phase the molecular forces are very weak
What are observed and measured during an experiment; they are the experimental data
Answer:
Observation and measurements recorded during an experiment. All the variables that are kept the same throughout the experiment so they will not affect the results of the experiment. independent Variable. The variable which the experimenter changes so that he/she can observe the results of the experiment.
Do you playing video games after school affect a students grade
Answer:
No, exercising something you enjoy does not affect a student's grade, if it is controlled.
Explanation:
Playing a couple of hours a day (1-3 MAX) will not affect a student's grade, but excessive playing will affect their grade negatively, as the video game will stay on their mind unconciously (most of the time) which will distract the student and prevents the student from thinking straight, regarding the fact that it could cause eye damage, and increases the chances of epilepsy.
please look at (both pictures) and answer I need this fast please answer!!
During the warm days of summer in the Arctic, mosquitoes breed exponentially. When winter comes, the population falls off severely due to a limiting factor.
What is the limiting factor in this situation?
-no vegetation
-more sunlight
-excess of food
-colder temperatures
thanks in advance!!
Answer:
colder temperatures
Explanation:
What are five classes of protein found in prokaryotic cell membrane?
receptor proteins, transport proteins, resperatory proteins, binding proteins, attachment point proteins
Which is an example of a herbivore?
A) fleas
B) hawks
C) bacteria
D) deer
Answer:
D
Explanation:
fleas feed on blood
bacteria eat decomposing flesh
hawks feed on rodents
Answer:
D) Deer
Explanation:
They eat plants
What are the errors in the table? Check all that apply.
ER should be in both animal and plant cells.
Golgi body should be in animal cells only.
Lysosomes should be in animal cells only.
Nucleus should be in plant cells only.
Ribosomes should be in plant cells only.
Vacuoles should be in both animal and plant cells.
Answer:
C
Explanation:
zombies is present only in animal
Something that transmits some, but not all, of the light that hits is called:
A. Opaque
B. Translucent
C. Transparent
Answer:
its B translucent
Explanation:
because opaque cannot and transparent all
the answer is translucent
Which is a reason why meiosis is important to sexual reproduction? Meiosis allows a zygote to grow in cell number. Meiosis doubles the chromosome number in each cell. Meiosis allows for the exact duplication of cells. Meiosis allows for genetic differences between parents and offspring.
Answer:Its b
Explanation:hope this helps
give any one adverse effecteffect of green house effects?
Explain the difference between repetition and replication. plz
Answer:
Repetition: Doing something over and over/doing something repeatedly
Replication: Duplicating something/duplicating yourself
Explanation:
I hope this helps :)
Answer:
Repetition refers to performing multiple trials throughout an experiment.
Repetition reduces mistakes and increases one’s confidence in the results.
Replication refers to the ability of a process to be repeated by another individual.
When a scientist replicates another’s experiment, the experiment should produce the same results.
Explanation:
How is mitochondrial DNA used in forensic science
The mitochondrial DNA team examines biological items of evidence from crime scenes to determine the mitochondrial DNA (mtDNA) sequence from samples such as hair, bones, and teeth. Typically, these items contain low concentrations of degraded DNA, making them unsuitable for nuclear DNA examinations.
Answer:
The mitochondrial DNA team examines biological items of evidence from crime scenes to determine the mitochondrial DNA (mtDNA) sequence from samples such as hair, bones, and teeth. Typically, these items contain low concentrations of degraded DNA, making them unsuitable for nuclear DNA examinations. Hope this helps
What is the purpose of the EIS?
Answer:
Purpose of an EIS An Environmental Impact Statement (EIS) is a document prepared to describe the effects for proposed activities on the environment. "Environment," in this case, is defined as the natural and physical environment and the relationship of people with that environment
Explanation:
How do humans get carbon and how do we get rid of it?
Answer:
by breathing in..And breathing out.
Explanation:
our lungs take in oxegyn and breath out carbon dioxide
What might be the effects on iron deficiency?
Eclispe of the Sun
(b) Based on the diagram shown above, what can be observed on the surface of the globe?
Answer:
ANNULAR SOLAR ECLIPSE
Explanation:
BECAUSE THE SHADOW OF THE MOON DOES NOT EXACTLY REACH THE EARTH,THERE WILL STILL BE SOME LIGHT REMAINING
if a part of small intestines is damaged how would that impact the digestion of food
Answer:
depends on the part
Explanation:
if the part is at the end of the small i testine then most of the digestion woul have aldready taken place. However at the centre or newr the centre the digestion will be hindered it may also lead to ulcers.
Can you see pores in the walls of diatoms?
Answer:
The simple answer is yes.
Explanation:
Pelvic inflammatory disease commonly affects all of the following organs, except the:_________.
A) uterus.
B) ovaries.
C) urinary bladder.
D) fallopian tubes.
Answer:
C) urinary bladder
Explanation:
Pelvic inflammatory disease commonly affects all of the following organs, except the urinary bladder
Pelvic inflammatory disease commonly affects all of the following organs, except the urinary bladder. Option C is correct.
Pelvic inflammatory disease (PID) is an infection of the female reproductive organs. The most common cause of PID is a sexually transmitted infection (STI), such as chlamydia or gonorrhea. PID can also be caused by bacteria that normally live in the vagina.
The organs that are most commonly affected by PID are the uterus, fallopian tubes, and ovaries. The urinary bladder is not typically affected by PID.
Here are some of the symptoms of PID:
Pain in the lower abdomenFeverVaginal dischargePainful urinationBleeding between periods. Option C is correct.To know more about the Fallopian tubes, here
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tudy the graph above. What does the region labeled “A” represent? Question 2 options: Activation energy with a catalyst Energy of the products Activation energy without catalyst Reaction progress
Answer:
A. Activation energy with a catalyst
Answer:
A
Explanation:
Define aseptic. What does the prefix ‘a-‘ or ‘an-‘ mean?
Answer:
opposite
Explanation:
The prefix “a-” almost always means that a word means the opposite of its base
Sirius A is 8.6 light-years from Earth. What is this distance in Kilometers?
Answer: 81,362,880,000,000 kilometres
Explanation:
A Light year refers to the distance that light travels in a year.
Light travels at a rate of 300,000 km/s.
This means that in a year it travels;
= 300,000 * 60 seconds * 60 minutes * 24 hours * 365 days
= 9,460,800,000,000 km in a year
Sirius A is therefore;
= 9,460,800,000,000 * 8.6
= 81,362,880,000,000 kilometres from Earth.
Drag each of the following organs to the appropriate organ system. Labels can be used more than once if the organ is a major part of more than one system.
1. Brain
2. Stomach
3. Trachea
4. Pancreas
5. Blood vessels
6. Lungs
7. Ureter
8. Bones
9. Spleen
10. Thyroid gland
11. Ovary
12. Small intestine
13. Muscles
14. Pituitary gland
15. Kidney
16. Skin
17. Spinal cord
18. Heart
A. Endocrine
B. Integumentary
C. Skeletal
D. Muscular
E. Nervous
F. Cardiovascular
G. Lymphatic
H. Digestive
I. Respiratory
J. Urinary
K. Reproductive
Answer:
Nervous-brain as the components of the central nervous system,together with the spinal cord.
Digestive-Stomach as the components of the upper digestive or alimentary canal.It is for temporary storage and digestion of foods.
Small intestine where final digestion and absorption takes place
Respiratory-Lungs.-paired in mammals is for exchange of gases.
-Trachea as part of the upper respiratory system,conducts airways to the lungs
Reproductive-Ovary female reproductive organ for ova production
Urinary-Ureter for conducting urine to the bladder from the kidney to penis and orifice in females to the exterior.
Cardiovascular( the heart and the blood vessels)- heart the pumping organ into the blood vessels.
Endocrine-Thyroid gland for secretions of thyroid hormones -T3 and T4.
Pancreas for insulin and glucagon productions,and helps in digestion,
Integumentary-Skin,for protection of the body.
Lymphatic-Spleen.This forms the lymphatic system for formation of un reabsorbed tissue fluids the lymph.
Skeletal-Bones for support and rigidity of the body,by attaching to the bones,
Muscular system-muscles for stability of the body in mammals.
Explanation:
Which of the following are final destinations of proteins directed to the secretory pathway? ▼endoplasmic reticulum ▼mitochondria ▼the plasma membrane ▼the outside of the cell▼ the nucleus ▼the golgi apparatus ▼lysosomes A. TRUE B. FALSE
Answer:
False, the final destination is the outside of the cell
Explanation:
The secretory pathway moves proteins to the cell membrane, where they are released to the extracellular medium. In this pathway, the proteins enter into the membrane of the rough Endoplasmic Reticulum (ER) in a cotranslationally way (i.e., during their synthesis in ribosomes). This pathway can be summarized by the following transporter activities: Endoplasmic Reticulum >> Golgi apparatus >> secretory vesicles (such as lysosomes) >> cell membrane, where proteins are finally released by exocytosis.
How MDMA affects the synapses in the brain
Answer:
MDMA affects the brain by increasing the activity of at least three neurotransmitters (the chemical messengers of brain cells): serotonin,89,90 dopamine, and norepinephrine.91 Like other amphetamines, MDMA enhances release of these neurotransmitters89–92 and/or blocks their reuptake,93,94 resulting in increased neurotransmitter levels within the synaptic cleft (the space between the neurons at a synapse).
Answer:
MDMA increases levels of these neurotransmitters within the synapse
Explanation:
Select the correct answer.
Robert owns a fertilizer manufacturing firm. His employees are constantly exposed to the hazards of the poisonous chemicals used for
manufacturing fertilizers. Robert makes sure that every employee of his firm follows a written document containing essential work practices,
procedures, and policies for employee protection from chemical hazards. Which document is Robert referring to?
Ο Α.
Occupational Safety and Health Act
OB.
Laboratory Standards
OC.
Health, Safety, and Environmental Policy
OD
Chemical Hygiene Plan (CHP)
Answer:
The answer is D.
Explanation:
I think the answer to this question is D because the employees are constantly exposed to poisonous chemicals. The Chemical Hygiene Plan (CHP) states " CHP is a written program stating the policies, procedures and responsibilities that protect workers from the health hazards associated with the hazardous chemicals used in that particular workplace."
Hope this helps!
Robert, who owns a fertilizer manufacturing firm have made some findings and these can be documented and referred as Chemical Hygiene Plan (CHP). Thus, the correct option is D.
What is Chemical Hygiene Plan?The Chemical Hygiene Plan (CHP) is a written program which states the policies, procedures, and responsibilities which protect the workers from the health hazards which are associated with the hazardous chemicals that are used in that particular workplace.
Chemical Hygiene Plan includes list of several things which are hazard identification strategies, hazard controls, equipment inspection and maintenance protocols, employee training requirements, medical consultation and examination, containment equipment, and the procedures which require prior approval.
Therefore, the correct option is D.
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