Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study?

Question 6 options:

If the cage for the chickens is larger, they will produce more eggs.


If more eggs are produced by the chickens, they will lose more weight.


If there is more protein in the feed, then more eggs are produced.


If chickens receive more hours of light, then they will produce more eggs.

Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study
If the cage for the chickens is larger, they will produce more eggs.


If more eggs are produced by the chickens, they will lose more weight.


If there is more protein in the feed, then more eggs are produced.


If chickens receive more hours of light, then they will produce more eggs.

Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.

Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.

What is the independent variable in this experiment?



Question 7 options:

amount of fertilizer


number of algal cells


hours of daylight


amount of water

Question 8 (2 points)
Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.

Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.

What is the dependent variable in this experiment?

Question 8 options:

size of beakers


number of algal cells


amount of fertilizer


hours of daylight

Question 9 (2 points)
Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.

Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.



Which of the following is the control group for the experiment?

Question 9 options:

Beaker D


Beaker C


Beaker E


Beaker A


Beaker B

Question 10 (2 points)
To focus a specimen, it is best to start with which objective:

Question 10 options:

High power


Low power


Scanning


Ocular

On the image, which number represents the coarse adjustment knob?


1


2


5


10

What important feature is missing from this line graph representing sea level change between 1870 And 1990
X axis label


a title


Y axis label


appropriately spaced scales

Answer:

You want get to be a month and the best friends and you can do it is the best friends and you want to be a month and the best friendYou No me a bit to get the best friends and you know how you want to get the best of turkey

How does food resource availability influence parental care in the clown anemonefish

What advantage does the white-faced marmoset gain by its method of reproduction?

The marmoset population has genetic variation.

The marmoset can reproduce without a male.

The marmoset can reproduce many offspring at a time.

The marmoset can reproduce by budding.

the source of electricity that turns solar energy directly into electricity is?
• wind
• solar thermal
• photovoltaic
•hydroelectric

Which part of the membrane can catalyst chemical reactions

Describe the sodium potassium pump using as much detail as possible. Bonus if you can accurately describe how this relates to cystic fibrosis. and i will make u brainliest

B. What is the largest cell called?
This is the largest cell in the human body. In
contrast, the sperm cell is the smallest cell in
the human body.
HELP ASAP!!!

Erythrocytes (red blood cells)have no nucleus, mitochondria, orother organelles at maturity. Theseorganelles are ejected when the RBCenters the bloodstream, or shortlythereafter. Should this still beconsidered a cell? What will be theeffect of having no nucleus? In thesecells, the lack of mitochondria is anadvantage. Why?

2. What does letter B represent on the Earthquake model?

A:Epicenter
B:Focus
C:P wave
D:O S wave

does any one know whats wrong with my foot it has been in constant pain since yesterday now i dont know if it is a sprain or what plz help im in constant pain now i can hardly walk it is the long near the big toe right in the center of the long bone conecting to my ankle plz i need to know if i need to go to doctor.

How do animals obtain energy from the foods they eat?

A. Water in foods is broken down to release energy.

B. Sugars in foods are broken down to release energy.

C. Fats are produced in the body and used to make energy.

D. Proteins are produced in the body and used to make energy.​

Which scientist(s) figured out that the shape of a DNA molecule is a double helix?
a. Hershey and Chase
b. Griffith
c. Watson and Crick
d. Franklin

Gravity causes a ball to fall is which law

A (Blank) is a specific sequence of nucleotides in a strand of DNA that codes for a specific sequence of amino acids.

Two adjacent solution are______ if they have the same concentration of solute.

Cells use a molecule called
Choose...
to store and release energy like a battery. The energy is stored in chemical bonds between
Choose...
groups of the molecule, and the energy is released when the chemical bonds are broken.

The lagging strand can be copied in ___
A. segments
B. continuous strand

What does a cell have to do to move a substance from an area of low concentration to an area with high concentration

Select the correct answer. Jane starts to blink her eyes when her brother shines a flashlight at her. Why does Jane start blinking her eyes? A. because of a spinal reflex B. because of phototropism C. because of a voluntary reaction D. because of fear

What dose the numbers on the map mean

There are two forms of diabetes. Type II diabetes is also known as late-onset diabetes because it typically affects adults. Consider the following information about Type II diabetes:

Studies have shown that the lifetime risk for developing Type II diabetes is 40% for individuals who have one parent with Type II diabetes.
If a person has two parents with Type II diabetes their risk rises to 70%
Other factors that affect your risk for Type II diabetes include obesity, a sedentary lifestyle (not moving around much), a small or large birth weight, and stress.

Use the information above to answer the question: Is your risk of having Type II diabetes due to your genes, or due to the influence of the environment on your genes (epigenetics), or both?

The structure labeled "A" open and close the sites where the gases, carbon dioxide and oxygen, are exchanged during photosynthesis. What is the structure labeled A?

PLEASE HELP ME PLEASE :)

do cells produce waste

In the scientific method An educated guess or suggested solution to a problem is known as which of the following

Question 1 options:

guessology


dependent variable


Hypothesis


conclusion

Which is the process by which green plants use sunlight, water, and carbon dioxide to make food?

o photosynthesis
o cellular respiration
o anaerobic respiration
o fermentation

A population of bacteria is experiencing exponential growth and doubles in population size every 20 minutes. If there was 1 bacterium at 0 minutes, how many bacteria will there be in 140 minutes? please help for a test worth 20 points

Help me please....pleaseeeeee

4. Food molecules diffuse through the wall of the intestines directly into the blood. Which two systems directly interact during this process? A respiratory and circulatory C immune and digestive B circulatory and muscular D digestive and circulatory

HELPPPP PLEASEEE I don’t get this at all

Function of trichocyst