The poles of the planet experience many months in a row when the Sun
never sets. Why are the North and South poles still relatively cold during
these times?

The missing options are:

A. The Sun is still low in the sky, so the solar intensity is low.

B. The Sun is low in the sky, so the solar intensity is high.

C. The poles were cooling for six months with no sunlight, and it takes a long time to warm up.

D. Both A and C are correct.

The correct answer is D. Both A and C are correct.

Even though the Sun never sets for many moths in the North and South poles, these are still cold because for them to warm up:

In conclusion, the poles are cold because they are never positioned directly in front of the Sun since the Earth has an inclined axis. As a result, the rays directly impact the rest of Earth during its yearly journey around the Sun, resulting in high solar intensity, with high temperatures, during summer. Besides, as the Sun's rays have a very low intensity in the poles, they could never warm up these parts of Earth in six months; they need more time.

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Is DNA replication always a foolproof process? Explain your answer.

What causes the change from day to night and vice versa?

A. The orbit of the sun around Earth.
B. The moon's rotation around Earth
C. The rotation of Earth on its axis.
D. The orbit of Earth around the sun

Which of the following accurately describes how environmental pollution can cause a
non-transmissible disease?
People who are exposed to photochemical smog in "gray-air cities" are at risk of developing
pneumonia.
People who are exposed to increased levels of tropospheric ozone are at risk of developing
skin cancer.
People who eat animals in which toxins have bioaccumulated are at risk of contracting
malaria.
People who are exposed to asbestos particles are at risk of developing respiratory
infections.

According to this dichotomous key, any catfish must have
a double dorsal fin, a small fin on the back near the tail, and barbs near the mouth.
a single dorsal fin, no small fin on the back near the tail, and barbs near the mouth.
a double dorsal fin, a small fin on the back near the tail, and no barbs near the mouth.
a single dorsal fin, a small fin on the back near the tail, and barbs near the mouth.

List these taxonomic levels in order from BROADEST to MOST SPECIFIC - Species, Family, Class, Genus *

The sides of the DNA ladder consist of alternating______ and phosphates

Dihybrid Punnett Square Homework 1 Susan and Tim both have red hair which is recessive to brown hair. Susan is heterozygous for dimples(dominant) and Tim has no dimples. Create a Punnett square that shows the genotypes of all the possible offspring that could result from Tim and Susan! Use R or r for hair color. Use D or d for dimples or no dimples. What is the genotypic percentage? What is the phenotypic percentage?​

A protein is a king chain of amino acids joined together

The question is in the picture

In 2-3 sentences, explain how crossing over and independent assortment in sex cells affect the appearance of the fully developed organism.

click on the graphic below until the correct answer appears.
which applies to a real machine?
work output/work input < 1
work output/work input = 1
work input/work output = 1
work input/work output < 1​

What can the reader reasonably conclude based on the information in this passage?

A.Gregor Mendel was well paid for his research.

B.Gregor Mendel noticed other things about peas.

C.Gregor Mendel won a Nobel Prize for his work.

D.Gregor Mendel hated gardening.

Which components bond with andenine in a section if double stranded DNA

Please helpp
I don't understand this at all

Compare the Three General patterns of population dispersion

Which of the following human impacts on natural habitats are TRUE? Check all that apply.

4. A bacterial cell is prokaryotic, while the protist, Euglena, is eukaryotic. Which structure is present
in both organisms?*
(10 Points)

plzzzz help
Commensalism is a symbiotic relationship in which one organism benefits and the other organism neither benefits nor is harmed.
Mutualism is a symbiotic relationship in which both organisms benefit.
Parasitism is a symbiotic relationship in which one organism benefits and the other organism is harmed.
Predation is a relationship in which one organism preys on (and eats) another organism.
Competition is relationship in which two organisms must fight (directly or indirectly) for resource

Objective:
Given a description of the relationship between two organisms, determine if their relationship is competition, commensalism, predation, mutualism, or parasitism.

1. Polar Bear and Seal: A polar bear hunts and captures the seal for its food. _______________________________

2. Lice and Humans: Lice attach to human hair and enjoy the warmth given off by the human. They eat tiny amounts of human blood, causing the human to have little red bumps that are quite itchy. They may also transmit disease to the human. _______________________________

3. Male lions: Adult male lions will fight each other for control over a pride and mating rights. _______________________________

4. Goby Fish and Sea Urchins: The goby fish live amongst the sea urchins and are provided protection from their predators. _______________________________

5. Wolf and Caribou: The wolf hunts and kills the caribou for its food. _______________________________

6. Bats and White-Nose Fungus: The fungus grows over the bat’s face during hibernation which can kill the bat or cause it to wake up from hibernation early and starve. ____________________________________

7. Hermit Crabs and Snails: Hermit crabs live in abandoned shells made by snails. _______________________________

8. Boxer Crab and Anemone: The boxer crab carries a pair of small anemones in its claws. When a predator approaches, it waves the anemones around which present its stinging tentacles and deters the predator. The anemones get small particles of food from the crab when it eats. _______________________________

9. Bear and Salmon: The bear catches salmon in the river and eats it for food. _______________________________

10. Grass and Oak Trees: Oak trees grow tall and put their branches out wide to collect sunlight. This shades the grass growing underneath from getting sunlight. _______________________________

11. Mycorrhizal Fungi and Plants: The mycorrhizal fungus grows into the roots of some plants and gets nutrients from the plant. The fungus helps the plant absorb inorganic nitrogen and phosphorus from the soil. Some fungi also secrete antibiotics, which can help protect the plant from parasitic fungi and bacteria. _______________________________

12. Bison and Cowbird: As bison walk through the grass, it kicks up insects like grasshoppers. These are seen and eaten by the cowbird. _______________________________

13. Mistletoe and Oak Tree: Mistletoe extracts water and nutrients from the oak tree, causing harm to the oak tree. _______________________________


14. Frog and Insect: The frog uses its long, sticky tongue to catch insects for food. _______________________________

15. Tapeworm and Dog: The tapeworm enters the dog when the dog eats feces containing tapeworm larvae. The tapeworm attaches to the dog’s stomach and feeds off of the dog’s nutrients. This often causes harm to the dog. _______________________________

As the lock for the door opens you enter another room. This one has plain cement walls with huge silver and copper pipes running from floor to ceiling. The room reminds you of a basement mechanical room even though you have just gone upstairs. Everywhere there are old wooden crates and piles of gears of all sizes, springs, gages and the hands of old clocks. As you gaze around the door you just entered closes and will not open. (and even if it would you are not sure of what has happened to the Antique Dealer and maybe there is some danger that way.) Someone in the group checks their phone but there'is no signal. Maybe all this cement and metal is blocking your signal. Next to another door is an interesting framed collage made of miscellaneous gears and pieces.​

3 of 26 Question 3 Review The two reactions illustrated in the diagrams below often occur when a foreign substance enters the body. Foreign substance Specific proteins SY produces Cell A Cell B The cells labeled A and B are examples of cells known as​

6. Which of the following is true during telophase?
a. The nuclear membrane has disappeared.
b. The cell membrane begins to form cleavage furrow at the center.
C. Two new cells are formed with the same number of chromosomes as the parent cell.
d. The centromere of each chromosome divides and pulls them by the spindle fibers toward
the end of the cell.

When is the production of genetically identical offspring a disadvantage? Explain your reasoning.

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What is the probability that this couple will have a colorblind son?

It is difficult to achieve global sustainability because
A. it is an unrealistic goal.
B. governments do not always agree on how to solve environmental problems.
C. international agreements are not binding.
D. globalization is increasing.

name the living matter of the cell.​

I need HELPPPP PLS ASAP ITS DUE TODAY PLSS. click on the image​

Classification (8A.S, 8B.R, 8C.S]:Question 4
The classifications of four insects are shown in the table. Which two
insects are the most closely related?

An organism, like a plant, that can make its own food is called (choose all
that are correct)
A. a heterotroph.
B. an autotroph.
C. a producer
D. a decomposer.

Once anything passes through the event horizon, from the perspective of that
object, nothing would change.

True or false

Which chemical is classified as an enzyme?
a. galactose
b. lipid
c. protease
d. manganese dioxide