Which of the graphics best represents an animal cell?
ОА
ОВ

Answer:

a

Explanation:

b is a plant cell. animal cells do not contain a cell wall.

Answer:

A

Explanation:

Plant cells are green due to chlorphyll. They also have more box-like structures in order to be stable. Animal cells do not have these characteristics, so the answer is A.

HELLPP I NEED THE ANSWER NOW!!!!!
Bloodworms, which are the mature larvae of non-biting midge flies, are commonly found in and around bodies of water. Most types of bloodworms can live only in pollution-free, oxygen-rich environments. However, a few species thrive in environments with low concentrations of oxygen and high concentrations of nutrients and pollutants. From the changes in the bloodworm populations shown in the table above, what can be determined about how water in the stream has changed?
A. The water has become less polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
B. The water has become more polluted, as evidenced by the decrease in the number of bloodworm species present and the increase in bloodworm population density.
C. The water in the stream has become less nutrient-rich, as evidenced by the increase in bloodworm population density.
D. The water in the stream has become more oxygenated, as evidenced by the increase in bloodworm population density.

Explain why most local water budgets are not balanced

Canada's laws are made by the government which includes?

Question 4 options:

Parliament and a prime minister


monarch


General public demands


general rebulic

Match the following. 1. tetanus rickettsia 2. Rocky Mountain spotted fever malaria 3. drinking water rabies 4. decreased body temperature lockjaw 5. animal bite hypothermia 6. mosquito potable

Which allele combination represents a female who is a carrier for an X-linked recessive disorder?
XRXr
XrXr
XRY
XrY

Mosses are an example of which of the following?
decomposers
heterotrophs
autotrophs
detritovores
primary consumers

which factors have approximately 50% of the affected species being listed as threatened according to the graph select all that apply​

What time of year does everywhere on Earth receive an (almost) equal amount of daytime sunlight? Why does this occur?

Which of the following cells is NOT an antigen presenting cell?

B-Cells

Dendritic cells

Macrophages

T-Cells

Which of the following is NOT a function of an antibiotic?
A. targeting the ribosome that inhibits protein synthesis, causing the cell to not function correctly
B. attacking the mitochondria, inhibiting the production of sugars that give the cell energy
C. inhibiting the production of the cell wall and breaking down what is present​

Why might cell division occur?
A. To provide energy for body functions.

B. To make more cells, to grow, and to repair damaged tissue

A chemist wants to show how the molecular structures of the major greenhouse-effect contributors allow them to
absorb heat.
Which of the following would the chemist not be modeling?
A) carbon dioxide
B) carbon monoxide
C) chlorofluorocarbons
D) nitrous oxide
E) methane gas

After proteins are made, they must be
sorted and packaged in preparation for
use by the cell. Where does this take
place?
A. endoplasmic reticulum
B. cell wall C.Golgi bodies

Which of the structures in the diagram is labeled by number 8? *
O perimysium
O muscle fiber
Otendon
O blood vessel
O endomysium​

What happens during synapsis?
A. gene recombination

B. DNA replicates

C. the cell divides

D. centrioles move to the poles

1. Match each term with the correct definition. a. External bleeding b. Direct pressure c. Pressure bandage d. Internal bleeding e. Arteries f. Veins g. Tourniquet ____ Using your gloved hand to apply pressure on the wound to control bleeding ____ Bleeding that can be seen coming from a wound ____ The escape of blood from an artery, vein or capillary inside the body ____ A tight band placed around an arm or leg to constrict blood vessels in order to stop blood flow to a wound ____ Blood vessels that carry blood from all parts of the body to the heart ____ Vessels that transport blood to the capillaries for distribution to the cells ____ A bandage applied snugly to maintain pressure on the wound to control bleeding

A group of scientists studied the effects of exercise on insulin sensitivity in elderly women. The scientists measured the amount of insulin secreted in the saliva when given glucose. Measurements were taken at 0, 20, 40, and 70 minutes after the glucose was administered. The graph shows the data collected before and after a four-month exercise program was put into place

Which statement BEST analyzes the data shown in the graph?
A. Elderly women secrete more insulin the more they exercise.
B. Exercise decreases insulin sensitivity in elderly women.
C. Insulin sensitivity is at its highest after 50 minutes.
D. Insulin sensitivity increases as exercise decreases.

What are the characteristics of the outer planets? (Check all that apply)

Small
Rocky
Made of gas
Large
High density
Low density

where does the energy supplied by ATP. come from

Are blue-green algae plants?
Blue-green algae are colored prokaryotes that can be
unicellular or can form colonies of cells, but they are not
truly multicellular. This algae species is autotrophic,
needs sunlight, and performs photosynthesis.
O yes, because they are not multicellular or eukaryotic
O yes, because they are autotrophic and need sunlight
O no, because they are autotrophic and need sunlight
O no, because they are not multicellular or eukaryotic

Mendel examined many crosses involving traits found in pea plants. He identified being tall as dominant (T)
and short as recessive (t). What is the genotype of a heterozyous tall plant?

In addition to mutations, genetic variation can also arise during the formation of gametes during meiosis. During meiosis I, homologous chromosomes can randomly exchange segments, in a process called crossing-over. This trading changes the order of the genes in the DNA and on the chromosomes. Exchange material is integrated into the rest of the chromosomes DNA. Each chromosome loses some DNA and gains some DNA. As a result, there are more genotypes in the offspring. 2. What function does recombination by crossing-over have in genetic variation

Question 32
2 pts
Which of the following is true about horns and antlers?
Antlers are permanent and are made of hair.
O None of the other answers are correct.
O Horns are shed yearly and are made of hair.
O Antlers are shed yearly and are made of bone.
Horns are shed yearly and are made of bone.

natural chemicals in the brain that cause feelings of relaxation and happiness are called​

The chart below is a taxonomic key for the fictitious insect genus
Problematica. To which species does the insect in the picture belong?
Select one:

A. Problematica differensis
B. Problematica brancus
C. Problematica cantrellis
D. Problematica alva

Help me with this please. I’ll give brainliest

Help me, it's due today

simply square root of 18​

What term describes the biological burden on the body caused by emotional upset?

Upon close examination of the skeleton of an adult python, a pelvic girdle and leg bones can be
observed. These features are an example of
a. artificial selection
b. homologous structures
C. vestigial structures
d. comparative embryology