What the answer for this

Answer:

A. CPR is an important skill that few Americans have.

Explanation:

The paragraph is talking about how not a lot of Americans know how to perform CPR.

Explain why the alimentary canal is so long

Warm air holds _____.
less water than cool air
the same amount of water as cool air
more water than cool air

PLEASE JUST ANSWER DO NOT ATTACH IMAGE

Which of the following is an example of the endocrine system maintaining homeostasis? (3 points)
-Detecting a pain stimulus and sending a signal to the spinal cord to perform an automatic response
-Discharging an excessive amount of hormones in the blood and not sending a signal to stop production
-Sending a message to the pituitary gland to start producing a hormone when the levels in the body are too low
-Using sense organs to get information about the outside world and direct an appropriate body response release

Infer: In which part of Earth's core do
convection currents occur?

An airplane flies with a constant speed of 760 km/h. How far can it travel in 2 1/2 hours? Distance =​

A massive flood tears out many trees in a wooded area. What would you expect the area to look like a year later?
A.
A new species of trees will be about half grown.
B.
Grasses and weeds will be growing in the sunny areas.
C.
It will look exactly like it did before the flood.
D.
There will not be any plants growing the first year.

what is a vector in life science​

All organisms in the kingdoms Priotista, Plantae, Fungi, and Animalia are

1. What happens in any chemical change?
2. List three signs that a chemical change has occurred.
3. Give an example of a chemical change. Explain why you think it is a chemical change.
4. Why can chemical changes often not be reversed?

Which of the following is not considered to be a surface water?
A) aquifer
B)ponds
C)wetlands
D)river

What is the purpose of hardening?
To eliminate all disease
To manage the population of endangered trees
To allow nursery plants to transition to the outdoors
To make sure that the trunk of the tree is as strong as possible before planting

A series of Hfr strains that have genotype m+ n+ o+ p+ q+ r+ are mixed with an F− strain that has genotype m− n− o− p− q− r−. Conjugation is interrupted at regular intervals and the order of the appearance of genes from the Hfr strain is
determined in the recipient cells.

a. The order of gene transfer for each Hfr strain is:_________
b. What is the order of genes on the circular bacterial chromosome? For each Hfr strain, give the location and direction of the F factor in the chromosome

When the North Pole is tilted closest towards the sun, it is possible for areas within the Artic Circle to experience 24 hours of sunlight.

A. True

B. False

Choose The Correct Answer.

4. The barred owl has been moving into the habitat of the spotted owl. This could lead to a reduction in
the spotted owl population if the
O two owl species cannot interbreed,
barred owl is better adapted to habitat changes,
O barred owl is a secondary consumer
O spotted owl is dependent on local producers,
4th

Geologists believe that the Earth's layers vary in depth, pressure and temperature. Since pressure and
temperature affect density , each layer has a different density as well. The density of Each layer determines its
position inside Earth.
From the table which layer is the least dense? What is the density of this layer?

How many amperes of current will flow in a circuit if the voltage difference is 9V and the resistance in the circuit is 3Ω

The length and breadth of a rectangular floor are 12m and 8m respectively.How many tiles will be needed to cover the floor if the side of the title is 60 cm?​

Please help me, brainlist will be givin.

What are the important plants in agriscience?

Hydrogen bonds are formed as a result of which of the following? A. Ionic bonds b. Nonpolar covalent bonds c. Polar covalent bonds d. None of these are correct

What are tissues made of?
A. Groups of organs
B. Groups of reflexes
C. Groups of cells
D. Groups of systems

Globalization of the economy is increasing because of which of these factors? O A. Agreements limiting immigration OB. A decrease in international travel O C. Treaties expanding international trade O D. A decrease in demand for resources​

The adenine of the start codon is located at the +1 position. Use the DNA Mutations Interactive to determine which statements describe missense mutations. a substitution of G to U at position +13 in the sense strand a transition at position +12 in the antisense strand a transversion of C in the sense strand of the histidine codon a G nucleotide is inserted after position +1 in the antisense strand a deletion of the A at position +7 in the antisense strand an insertion of A between positions +7 and +8 on the sense s

16)
Base your answer on the information below and on your knowledge of biology
The Galapagos pink land iguana, Conolophus marthae (C. marthaes, is native to
only one of the Galapagos Islands. its entire range is currently limited to Wolf
Volcano on Isabella Island. The iguana was first discovered this island in 1986
Genetic studies of the animal began sometime later, and it was identified as a
species separate from other guana populations on the Galapagos in 2009. Its
population might have been as high as 100 in 1986, but now there might be as few
as 10 of the animals left alive
Other evidence indicates at this species could have diverged from another line
of iguanas about 5.7 million years ago. After that the other line of iguanas diverged
into two other species. Cpallidus and C subcristatus
Which evolutionary tree best represents the information about the pink land iguana provided
in the passage?
.
C. pallidus C. subcristatus marthae
A)
C. marthae C. subcristatus C. pallidus
B
C. pallidus C. marthe C. subcristatus
c)
C. subcristatus C. marthae c. pallidus
D)

Products that can be broken down by biological processes are considered

The fluid found between serous membrane layers

Which of the following is NOT a function of a cell membrane?
a. the cell membrane protects the cell
b. the cell membrane helps molecules move into or out of the cell
c. the cell membrane assists in the synthesis of proteins
d. the cell membrane has identifying marker molecules on it

Which of the following irrigation methods is most likely to result in salinization of the soil, especially if the agricultural fields are located in a warm climate with consistent sunlight
A Spray irrigation
Furrow irrigation
Flood irrigation
Drip Irrigation

how do you feel nonrenewable energy impacts the environment?

can someone please answer this question