I really need help on this question and nooo links the question is in the screenshot

biomagnification

eutrophication

global warming

biogeochemical cycles

What is the backbone of DNA composed of (choose all that apply)
nitrogen base

hydrogen bonds

sugar

phosphate

Steady callin' my phone
I done told you before that it's over, leave me 'lone
Know it's hurtin' you to see me gone
Dark clouds, you gon' see me storm
I won't go back
But trust me, you're gon' hold that
Hold that

The chart lists coordinates that describe the locations of
four cities.
City
Location
Kinshasa, Democratic Republic of the Congo 4° S/15° E
Addis Ababa, Ethiopia
9°N/39°E
Lagos, Nigeria
6°N/3° E
Oran, Algeria
35° N/0°W
Which city listed in the chart is farthest south?

What does population density measure?

What process is the base of the food web?

In which process do homologous chromosomes pair up?

A. Mitosis

B. Meiosis

where would you expect to find crystals that formed from a solution ?

What is the chance that the next child will be a male if the first six children in a family were females???

A) 100%
B) 75%
C) 50%
D) 0%

The amount of guanine nearly equals the amount of cytosine, and the amount of adenine nearly equals the amount of thymine within the DNA of a species.
What is this information known as

Help with these 3 please

Apart from muscles contracting, what other types of activities has your body done in the past 24 hours that require energy? Complete the list below.

I NEED THE ANSWER NOW PLEASE HELP

The tiny fruit fly is a superstar of genetics research. Thousands of experiments have explored how flies inherit traits. Wing shape, body color, eye color, and head shape are a few traits under investigation. Fruit flies make good study subjects because they are inexpensive, take little space, and breed quickly. In addition, humans and fruit flies share 75% of their disease genes. By studying fruit-fly genetics, we can learn about human illness.
Short-winged fruit flies studied in the lab cannot fly because they have an allele that causes them to grow tiny wings (w). Normal fruit flies, known as “wild-types”, have fully functional wings (W). The wild-type wing is the dominant allele.
If you cross one short-winged fly (ww) with a wild-type fly (WW), what is the probability of getting a short-winged offspring in the F1 generation?
Explain your reasoning.

In sickle cell anemia which of these changes?
Group of answer choices

The shape of white blood cells

The shape of red blood cells

The shape of blood vessels

The shape of skin cells

Which type of air mass originates in northern Canada?


cT


cP


mT


mP

Which of the following statements is not an example of evolution that has resulted from human activity? Group of answer choices Some insect species are now resistant to pesticides. Many strains of bacteria are now resistant to some commonly used antibiotics. Like certain other crops, domesticated strawberries are larger than wild strawberries. Because of hunting, organisms such as bears and wolves are fewer in number.

What differences exist in attitude between rangers of past times and those of the current day?

Why do welders have to wear a protective shield to cover their eyes?​

What do you think selectively permeable means?
A. The membrane lets nothing in or out.

B. The membrane lets certain substances move across it freely, while others must move through a “gate”.

C. The membrane lets everything in and out.

Barrera que delimita a la celula y que contiene sus organelos y los productos generados dentro de la misma , a traves de ella entran nutrientes y expulsan desechos

An empty paper cup is the same temperature as the air in the room. A student fills the cup with cold water. Which of the following
describes how thermal energy is transferred?

A. Thermal energy is transferred from the cold water to the cup until they are at the same temperature.
B. Thermal energy is transferred from the cup to the cold water until they are at the same temperature.
C. Thermal energy is transferred from the cup to the cold water until the cup has no more thermal energy
D. Thermal energy is not transferred between the cup and the cold water.

Given the following DNA sequences for cytochrome c, answer the question.


In one paragraph, using your own words, describe how you would determine which organisms are most closely related using the chart.

A scientist finds a fossil that she thinks might make a good index fossil.
Which characteristic does this fossil most likely have?
It is the remains of an organism still found alive today.
O It is the remains of an organism that is found in abundance nearby.
O It is the only fossil for this type of organism that has ever been found.
O It is the remains of an organism that lived in a narrow geographic area.

Once the body has begun shivering, what happens to make it stop shivering?

A. When body temperature returns to normal, the respiratory system sends a message to the skeletal system to stop shivering.
B. When body temperature returns to normal, the nervous system sends a message to the muscular system to stop shivering.
C. When body temperature is below normal, the nervous system sends a message to the skeletal system to stop shivering.
D. When body temperature is below normal, the respiratory system sends a message to the muscular system to stop shivering.

What happens during photosynthesis? *

A) ATP is created in the light reactions and used in the Calvin cycle

B) ATP is created in the Calvin cycle and used in the light reactions

Where would a star the same size of the sun have to be located, in order to appear brighter than the sun?
- A
- B
- C
- S

A steady increase in global temperature has been recorded
between 1900 and today. Before concluding that this rise in
temperature is the result of the increased burning of fossil
fuels since that same time, which of the following questions
would have to be answered?


A What is the CO2 content in one metric ton of fossil
fuels?
B Which gases are released when burning fossil fuels?
C What, if any, temperature rise was occurring prior to
1900?
D How have humans adapted to temperature change?

1. Why is it not advisable to sow rice in winter season in our country?​

What pigment do plants use as a catalyst for photosynthesis?
A. Water

B. Cyanobacteria

C. Chlorophyll

D. Carbon dioxide

Which of the following best describes the difference between an adaptation and adapting?

Match each feature created by erosion to the correct description.
(Here's the answer for anyone that need it.)