Which statement regarding polymers is TRUE?

1. Polymers have only a few uses.
2. All polymers are made entirely of carbon and hydrogen.
3.Many polymers do not decompose and recycling them can be difficult.
4. Polymers are made by separating crude oil during fractional distillation.

DNA contains instructions for making the different molecules, such as proteins, that a cell needs to grow and function. To use these instructions, the DNA must first be _______ into _______.

A.
translated; amino acids
B.
translated; mRNA
C.
transcribed, mRNA
D.
transcribed; amino acids

Why were the prokaryotes split into
two kingdoms?
A. Their size was much different from
each other
B. They were discovered to be very
different from each other
C. It makes it easier to sort out all of
the organisms
D. There were too many bacteria for
one kingdom

O
soil erosion.
O
worm populations in the soil.
O
numbers of minerals in the soil.
O
water retention.

Hw many bones make up the axial skeleton

Which component of food is normally absorbed in the large intestine as well as the small intestine? A) Water B) Carbohydrates C) Fats D) Proteins

I couldn’t find it on here so here’s the answer-The Soviet Union launched the first human spaceflight on April 12, 1961, carrying cosmonaut _____.
It’s Yuri Gagarin

I. Contamination of groundwater
II. Increased seismic activity
III. Decreased methane emissions into the environment

Hydraulic fracking is using pressurized water to open fissures and fractures in the deep rock formations in
order to release natural gas and petroleum deposits. Which of these is a negative ecological consequence
of hydraulic fracturing (fracking)?
A) I only
III only
B) Il only
D) I and Il only

Which books are the hardest to force yourself to read through?

Which statement correctly describes the difference between cellular respiration and photosynthesis?
A.
Photosynthesis involves chemiosmosis, and cellular respiration doesn’t involve chemiosmosis.
B.
Photosynthesis doesn’t produce any ATP, and cellular respiration produces ATP.
C.
Photosynthesis occurs during the day, and cellular respiration occurs at night.
D.
Photosynthesis creates energy that the plant stores, and cellular respiration utilizes the energy.
E.
Photosynthesis is an anabolic reaction, and cellular respiration is a catabolic reaction.

When the stoma is closed what two plant processes cannot occur?

Suppose you had a paper cut on your finger. Although the cut may have bled and stung a little, after a few days, the cut may have completely healed. Since you don’t actually have a cut on your finger, answer the following questions:
1. How do you think the body repairs an injury, such as a cut on a finger?

Which two characteristics describes the most stable ecosystem on Earth?
a. They are near the

b they are near the equator.

c. They have high biodiversity

d they have to speed. Plants

Which of the following lists the eight levels of classification in the correct order?

A)domain, kingdom, class, phylum, family, order, genus, species

B)kingdom, domain, phylum, order, class, family, genus, species

C)domain, kingdom, phylum, class, order, family, genus, species

D)kingdom, domain, phylum, class, order, family, genus, species

An chicken with black feathers is crossed with a chicken with all white feathers, the chickens are born with both black and white feathers. What type of dominance is shown?

A. Complete dominance
B. Incomplete dominance
C. Co-dominance
D. Mixed dominance
E. None of the above

HELP ASAP PLEASE!!!!!!!!!!!!!

8. TRUE FALSE Stimuli may include sights, sounds, tastes, and smells. plz answer thanks ​

Which of the following is not an example of symbiosis?

a. Commensalism
b. Mutualism
c. Parasitism
d. Predation

what are the names of the tree domains

A.bacteria,archaea,eukaryotic

B.bacteria,archaea,animalia

C.archaea,plantista,animalia

D. Life,animals,plants

Which statement explains one way that lakes form?
A. Lava flows block a river.
B. Streams flow into shallow areas.
C. Groundwater feeds into low-lying areas.
D. Grassy wetlands get covered by a stream.​

I need help I WILL GIVE BRAINLIEST!

Evan's playroom is 4 m by 3 m. The area of the room is:
o 7 m
07 m2
O 12 m
O 12 m2

Which of the following is an example of a population?
A. a hot, dry climate that receives very little rain
B. the bank of a pond and the frogs and salamanders that live there
C. a large clan of meerkats, including their offspring
D. a pack of wolves chasing a family of deer through a grove of trees

please help
2. What advantages help the peppered moth stay alive from birth to adulthood?

Natural Selection

1. Explain the impact of the industrial revolution on the environment in England.
2.
3. What evidence led scientists to believe that moth color was genetic and passed from parent to offspring?

4. Explain how natural selection influenced the species of moths to change over time.

5. What is industrial melanism?

6. Since the industrial revolution, there have been improved environmental standards and reduced pollution. Explain why the number of light colored moths is increasing.


Dr. Kettlewell

1. Kettlewell tested whether dark colored moths lived in polluted forests and light colored moths lived in clean forests? Explain his test.
2.
3. How did Kettlewell test bird predation on moths?

4. How did Kettlewell test if dark moths lived longer in dark forests?


5. What did Kettlewell conclude based on his results?


Work through the How to Play and then Play the game by working through simulations for both light and dark forests.
After each simulation record how the moth population in your forest changed. Include the percents of both light and dark moth populations.
(table below)
Percent of Light Moths Remaining Percent of Dark Moths Remaining
Light Forest
Dark Forest





1. Explain the theory of Natural Selection in your own words. How did the moth population change over time?

2. What selective pressure drove the moth population to change during the industrial revolution?

five differences between mankind and plants
​

if a volcano erupts and destroys an ecosystem how would life begin to form again?

which of the following are represented by upper and lower case letters

A. proteins

B. chromosomes

C. genotypes

D. phenotypes

The dust and gas that escapes from a comet creates a/an
OA. Meteor
OB. Asteroid
OC. Second comet
OD. Coma

HELP ASAP!!!!!!! PLEASE!!!!!

What caused an increase in the coronavirus's genetic variation?

Melanie is asked to list the complementary base pairings of a DNA sample in her lab. What is the MOST appropriate response she can give? Group of answer choices ST, RJ, CO, DI, SE RFLP and PCR chromosomes and genes AT, CG, CG, AT, CG