Bacteria have these things:
A. Cell wall, nucleus and cell membrane
B. No membrane bound organelles, cell membrane and cell wall
C. No DNA, cell membrane and no cell wall
D. Have no organelles or DNA

Varicella-zoster is the virus that causes chickenpox. The average incubation period is 14 to 16 days after exposure. A person usually experiences a mild fever and fatigue for 1 to 2 days before rashes appear all over the body. A person having had chickenpox as a child may have the virus lay inactive in the nerve cells for many years only to reactivate much later as an adult in the form of shingles, which results in a very painful rash. This information suggests that the reproductive cycle of the varicella virus is -
a)lytic for shingles because the virus causes rashes to appear on the skin.

b) lysogenic for chickenpox because the virus attacks the mucous membranes.

c) lysogenic because the virus is a varicella-zoster virus.

d) lytic for chickenpox because the symptoms appear soon after infection.

One of the first organisms to develop a new ecosystem is

Groups of cells work together as tissue. Groups of tissues from organ systems. True or False​

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TT att tt assume that in pea plants tall plant height is dominant to short plant height. Determine the phenotype from the genotypes.

Question 1
All of the following are true of body systems within an animal, EXCEPT-
A. each system within the body is made up of multiple parts.
B. body systems interact with other body systems at a given time.
C. each part of a system only has functions for that system.
D. systems can respond to the needs of the animal.

An animal's growth rate is determined by
O many genes
O one specific gene
O only factors not related to genetics like feed
depends on the animal

Look at the ecological pyramid here.
Which organism would you expect to find at level C?

What are 3 molecules that require active transport?

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Fish are sensitive to many environmental variables: dissolved oxygen, light, temperature, pH, clarity of water, food supply, presence of predators, etc. Fish will be attracted to different locations in a lake, based on its mix of variables.

Imagine you want to conduct an experiment to understand how just one of these variables differs in a local lake, depending on its depth. This lake reaches a depth of 17 meters. For this activity:

Pick a variable that might change as you go deeper in the lake on a given day.
Do a little research on that variable to determine how you might measure it in a lake.
Use the template below to outline an experiment to investigate this variable in the lake by depth. For each part, simply answer the question in parentheses to create your outline.
Type your response to each field in the space below that field:

Title: (Enter a brief, descriptive title. Hint: Sometimes it’s best to do this last.)

Purpose: (Why are you doing this experiment?)

Hypothesis: (What do you predict from this experiment and why?)

Procedure/Method: (How will you specifically carry out your experiment to test your prediction?)

Observations: (What specifically would you look for and record?)

Data analysis: (With this kind of data, what would be the best way to present it?)

Conclusion: [No need to enter anything here for now.]

References: (List any references you used to design the experiment. Note that for a full experiment write-up you’d also list any references you used while carrying out the experiment or in analyzing your results.)

Anna stated that carbon monoxide could not be organic because it is a gas. what is wrong with her statement?

A.) her statement is correct.

B.) Organic molecules can be gases.

C.) carbon monoxide is not a gas.

D.) Carbon monoxide is not organic because it is not produced by living things.

Which of the samples shown below are eukaryotic?

The respiratory system is made up of the airways, lungs, and respiratory muscles. The lungs are classified as –
cells.
tissues.
organs.
organisms.
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Explain the relationship between the length of a Great White
Shark and how much food it eats per year.

The leaves of chaparral shrubs are typically __________.
A)
small and waxy
B)
evergreen leaves
C)
able to store water
D)
all of the above


Please select the best answer from the choices provided

A
B
C
D

During winter vacation, you learn that a polar jet stream is traveling across the United States. The forecaster says there will be big changes in the
weather as the jet stream moves past your town in Florida
What causes wind? Choose the two that apply.
<
A
uneven heating of Earth's surface
B В
warm air sinking while cold air rises
C
air movement from high to low pressure
D
air movement from low to high pressure

Which of the following structures are found in eukaryotic cells? Check all that apply. endoplasmic reticulum mitochondria nucleoid Golgi apparatus
which of the following structures are found in both eukaryotic cells and prokaryotic cells? check all that apply. nucleus flagella ribosomes DNA nucleoid cell membranes endoplasmic reticulum​

In subduction, what determines which plate will be on top and which will be on bottom?

How do clastic sedimentary rocks form?


Fragments of rock are squeezed and cemented together.


Plant and animal remains are squeezed and cemented together.


Solid chemicals in water harden and form rocks.


Lava cools and hardens into rock.

What is a striation??

Every chemical compound is unique and different from the

If the endoplasmic reticulars were removed from the cell, which organelle would not be able to function properly, and why?
1. Mitochondria, because they rely on the ER as an energy source
2.Ribosomes, because they receive proteins made by the ER
3.Golgi apparatus, because n packages proteins received from the ER
4.Cytoplasm, because it relies on the ER for structural support​

8. Which has the highest heating value?
- Bituminous coal
- Anthracite
- sub bituminous coal
- Lignite

If Donald trump had no hair he would look how would he look like?

What percentage of people rank public speaking as their number one fear in life?
41%
50%
O 15%
0 95%
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what would be the mass of a charger block (Has to be grams)

brainscape: Restriction enzymes: A) act at the membrane to restrict the passage of certain molecules into the cell. B) are highly specialized ribonucleases that degrade mRNA soon after its synthesis. C) are sequence-specific DNA endonucleases. D) are very specific proteases that cleave peptides at only certain sequences. E) catalyze the addition of a certain amino acid to a specific tRNA. c The biological role of restriction enzymes is to: A) aid recombinant DNA research. B) degrade foreign DNA that enters a bacterium. C) make bacteria resistant to antibiotics. D) restrict the damage to DNA by ultraviolet light. E) restrict the size of DNA in certain bacteria.

Does global warming increase the amount of defective eggs birds lay

What common thing occurs in each mutation?