There are 3 types of polar bears: ones with thick coats, ones with thin
coats and ones with medium coats. It is fall, soon to be winter. The temperatures are dropping rapidly and the bears must be kept warm, or they will freeze to death. Many of the bears have had ~2 cubs each
but due to the extreme temperatures, many mothers only have one cub left.
Identify a type of variation in the polar bears ______________________________________________________ Which variation is most favorable? _______________________________________________________ In 50 years, what will natural selection have most likely done to the polar bears? _________________________________________________________________________________

Answer:

the ones with thicker coats are the most favorable and due to natural selection they will grow even thicker coats

Explanation:

Which shows the pathway of the egg through the reproductive system?

ovary → fallopian tube → vagina → uterus
vagina → uterus → fallopian tube → ovary
fallopian tube → ovary → uterus → vagina
ovary → fallopian tube → uterus → vagina

Describe what happens during each of the three processes that make up the water cycle.

give examples of rapid ecological changes that lead to primary succession

What does the state Department of Natural Resources do to protect the environment?




passes laws to protect the environment

advises the governor on environmental issues

advises the president on environmental issues

sets environmental education standards for schools

How was osmosis involved in causing Clark's seizures?

Please answer this correctly and don’t just answer it if you aren’t actually going to give me answer. The pages I have linked to this, are mostly to help answer the question just answer the first question or if you want the second one as well.
Thank you.

How was osmosis involved in stopping Clark's seizures?

(1) Which example is of a species changing over time?
A. After the death of the chestnut trees, oak trees became the dominant species.
B. A morning-glory plant is found curled around the post of a mailbox.
C. A birch tree in the forest reached its full mature height.
D. A ground-level plant develops curling tendrils that wrap around other objects so it can "climb."

(2) What do different environments cause different species to do?
A. become less diverse
B. become more diverse
C. become extinct
D. have similar traits

(3) What will a species that adapts be more likely to do?
A. survive
B. mutate
C. Live a shorter life
D. become extinct

(4) Which structural adaptation helps an organism obtain food?
A. the bright-colored skin of a poison dart frog
B. dandelion seeds that can float in the wind
C. the long neck of a giraffe
D. the cardinal's bright red coloring

(5) Which structural adaptation would help a plant survive better in a shady
environment?
A. small leaves
B. large leaves
C. brightly colored flowers
D. thorns

Please answer I need help for these five questions :)

Gives us example of definition of carbon in your own words.
and the celsius *c
* this is for my science project and I have no definition for my carbon drawing.

please help meeeeeeeeeeeeeeeeeeeeeeee

state why gorillas and chimpanzees are separate species

What is the result if nucleotides pair incorrectly?
a mutation
cell death
chromosome duplication
a new type of gene

What are the chances of the mating of two pink four-o-clock flowers producing all pink offspring?

A. 25%

B. 50%

C. 100%

D. zero

please help meeeeeeeeeeeeeeeee

Briefly describe the traits seen in each genotype:
Homo zygous dominant:
Hetero zygous dominant:
Homo zygous recessive

When astronomers determined that there are about 365.25 days in a year, they corrected this by

a. adding an extra two days every year
b. adding an extra day every two years
c. adding an extra day every four years
d. adding an extra day at the end of the year

How many different elements are involved in the chemical reaction above? (look at image)

Which organisms are both heterotrophic and autotrophic?
A. euglena and volvox
B. amoeba and euglena
C. euglena and paramecium
D. paramecium and amoeba

I'm willing to give brainlyiest to whoever gets this correct!

In preparing a karyotype, a blood sample is centrifuged to separate the blood cells from the plasma. The plasma is discarded and a hypotonic solution is added to make the cells swell. The solution is centrifuged again. A drop of this material is added to a slide, dried, and stained. The slide is viewed and photographed. Based on this procedure where is the best place to discard the plasma?

When a species adapts to a changing ecosystem, which choice is most likely to occur?
It will survive longer.
It will change form.
It will become extinct.
It will die quicker.

50 PTS SCIENCE Acting in the role of an atmospheric scientist, write a paragraph describing the atmosphere and its layers for a weather website entry. Be sure to describe significant similarities and differences among the different layers.

What type of weathering would occur in a location with an average temperature of -15 degrees Celsius and precipitation of about 75 cm per year?

Describe the tropical rainforest, What is the weather like? What is the precipitation per year? What are the average temperatures?

Place the order of digestion in order.

__ water is reabsorbed from indigestible food.
__ emulsification takes place with the help of bile.
__ feces is stored in the rectum and later released via the anus.
__ hydrochloric acid and pepsin helps to create chyme.
__ chyme enters the small intestine.
__ food is turned into bolus.

What type of mutation can result in the loss of an entire gene and cause internal or external changes to an organism?
zygotes

large-scale mutations

offspring mutations

small-scale mutations

The diagram shows one specific segment of DNA
Unwound,
DNA
TIU
What is the DNA molecule in the diagram doing?
A. It is exposing the amino acids for the protein
OB. It is unwinding to make a nen chromosome.
C. It is dividing in half to copy its nucleic acids.
D. It is using a gene to make a protein