BIOLOGY HIGH SCHOOL

Researchers have reported that the number of different species of fish found in certain areas of the ocean has been greatly reduced over the past 50 years. Give a reason, other than overfishing, that may be the cause of this decline.

Answers

Answer 1
Answer: one reason may be an invasive species coming in and eating while not having a natural fish coming in and eating it so whatever it eats the population drops

Related Questions

Gastropods have a “vertebrate eye”—a highly advanced visual system. True FalseArthropods are the most numerous phylum. True False Some arthropods do not have jointed appendages. True FalseIf you randomly selected one animal on Earth, it would probably be a crab. True False Spiders and centipedes are part of the class Crustacea. True False Arthropods have exoskeletons. True FalseCrustacea and Insecta are classes of mollusks. True False A lobster’s cephalothorax, which is a combination head and thorax, is an example of arthropods’ segmented body plan. True False
Water is an example of a(n) _____.
What is the meaning of a cellular process?
Does the area where you live have a dense or dispersed population?
Research indicates that dreaming may be responsible for inspiring creativity by __________.A. stimulating beta waves, which are responsible for waking brain activity B. rehearsing the daily activities for which one may need preparation C. allowing for the emergence of old data in useful, new patterns D. giving the brain long periods of rest where it is not overworked

Lana makes $8 an hour plus $12 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week.Part A: Create an equation that shows the amount of wages earned, W, for working x hours in a week when there is no overtime.

Part B: Create an equation that shows the amount of wages earned, S, for working y hours of overtime. Hint: Remember to include in the equation the amount earned from working 40 hours.

Part C: Lana earned $368 in 1 week. How many hours (regular plus overtime) did she work?

Answers

Part A:
Amount made by Lana per hour = $8
Amount of wages earned = w
Amount of hours worked in a week = x
Then
w = 8x

Part B:
Rate of overtime earned by Lana = $12
Amount of wages earned = s
Number of hours Lana worked as overtime = y
Then
s = (8 * 40) + 12y
   = 320 + 12y
Part C:
Amount earned by Lana = $368
Yhen
368 = 320 +12y
12y = 368 - 320
12y = 48
y = 4
So Lana worked 4 hours of overtime during the week.

Which of the following best describes what Einstein’s theories tried to explain?A) the creation of the universe
B) evolution and human development
C) how the physical world functions
D) the possibility of time travel

Answers

Answer:

The correct answer is option C, how the physical world functions

Explanation:

Einstein theories were quite fascinating and revealed some concepts which have changed the way science was studied. For example the theory of relativity explained the behavior of an object in space and time (concept of four dimensional). His theory of relativity introduced the “absolute”  frame of reference according to which whenever some quantity is measured be it velocity, momentum etc. it is in reference to some thing.  

This absolute reference do not apply to the speed of light and also nothing is faster than the speed of light. Like wise his theories changed the perception of scientist/scholars  with respect to the existing scientific theories as well as the future theories to be discovered.  

how the physical world funtions

brainstorm to create a list of 4 human activities that interfere with ecosystems, food chains and food webs.

Answers

1) our method of bodily waste disposal (we don't create detritus in as many ways)
2) industrialisation (destroying ecosystems, pretty self explanatory)

______ is the final electron acceptor at the end of the electron transport system.Oxygen

Carbon dioxide

Glucose

ATP
i said Oxygen but my teacher said it was wrong need help

Answers

Oxygen is the final electron acceptor in the electron transport chain in aerobic respirationThe electron transport chain of the mitochondria is the means by which electrons are removed from reduced carrier NADH and transferred to oxygen to yield water.In the cytochrome oxidase complex of the electron transport chain, four electrons interact with a molecule of oxygen and eight hydrogen ions. The four electrons, four of the hydrogen ions and the molecule oxygen are used to form water molecules.In anaerobic respiration the final electron acceptor can be of many types such as Ferric iron which is used by denitrifying bacteria

Scientific research shows that birds are capable of regenerating their hair cells.

Answers

True.

It has been studied in a research study that claims birds have the ability and capability to regenerate their hair cells. This regeneration happens when the hair cells die but come back to its original form despite the damage it might have faced. Further, they can also regrow their hair cells in their ears. 

Answer:

The answer is T

Explanation:

Scientific research does shows that birds are capable of regenerating their hair cells.

Na+ is a(n) _____, and Cl- is a(n) _____ .

Answers

Answer: Na^+ is a cation and Cl^- is an anion.

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

Electronic configuration of sodium:

[Na]=1s^22s^22p^63s^1

Sodium atom will loose one electron to gain noble gas configuration and form sodium cation with +1 charge.

[Na^+]=1s^22s^22p^63s^0

Electronic configuration of chlorine:

[Cl]=1s^22s^22p^63s^23p^5

Chlorine atom will gain one electron to gain noble gas configuration and form chloride anion with -1 charge.

[Cl^-]=1s^22s^22p^63s^23p^6

the answer is Cation;anion
Other Questions
During inhalation, air continues to move into the lungs until:_____A) the internal pressure is the same is atmospheric pressure.B) the internal pressure is less than atmospheric pressure.C) the internal pressure is greater than atmospheric pressure.D) the compliance of the lung decreases.E) the lungs recoil.
The rare earth elements include A. the lanthanide series and the alkali metals. B. the alkali metals and the transition metals. C. the actinide series and the alkaline earth metals. D. the lanthanide series and the actinide series.
What do all the living things in an ecosystem make up?
A land developer and several ecologists are discussing how a parcel of private land should be developed while saving 20 hectares as natural habitat. The land developer suggests that the 20 hectares be divided into twenty separate 1-hectare areas. The ecologists suggest that it would be better to have one intact parcel of 20 hectares. What is the significance of these different arrangements of the 20 hectaresA. The isolated hectare piots increase the ability of individuals to disperse from one habitat to another. B. The large plot will create more inbreeding in many species C. There really is no difference: they should both work equally well. D. The isolated plots are more vulnerable to edge effects.