The main difference among the types of symbiotic relationships isa. how many species either beneﬁt or are harmed.
b. how many species are eaten.
c. how many species are protected.
d. all of the above

Answers

Answer 1

Answer: I'm pretty sure the answer is a. but anybody feel free to correct me :)

Answer 2

Answer: a. how many species either benefit or are harmed...

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What is selective permeability?

Answers

Selective permeability, made possible in cells by the phospholipid bilayer that makes up the plasma membrane, is basically monitoring and regulating what can and can't enter the cell. It is carried out by a series of membrane proteins that act as channels to polar molecules, opening to allow them in and closing to prevent their entry. This is possible because the hydrophobic tails of the phospholipid molecules repel polar molecules and so prevent their entry unless through a channel.

Galaxies whose shape seems to follow no set pattern are classified as A. irregular.
B. spiral.
C. barred spiral.
D. elliptical.

Answers

The correct answer is (a) irregular.

An irregular galaxy does not have any distinct or regular shape. They do not belong to any any regular class of the Hubble sequence. They are sometimes chaotic in appearance. Structurally these galaxies do not have spiral arm or nuclear bulge. Collectively these galaxy make up one fourth of all galaxies. They are small in size and one tenth the mass of Milky way galaxy.

Galaxies whose shape seems to follow no set pattern are classified as
irregular(meaning; "not even or balanced in shape.")
So your correct answer would be your choice A.
hope this helps :)

Which mutation would be most beneficial to a panther and its descendents? A. an extra toe B. thicker fur C. eye color changed from green to brown D. slightly larger ears

Answers

D) Slightly larger ears would be most beneficial to a panther and it's descendent.

A cross-section of a tree trunk shows 20 dark-colored rings and 20 light-colored rings. What is the likely age of this tree?

Answers

Trees produce 2 colored rings per year and so by counting these rings you can have an idea as to how long the tree has lived. With 20 dark-colored rings and 20 light-colored rings, the tree is likely to have stood up for 20 years. I hope this helps.

The likely age of a tree that shows 20 light colored rings, and 20 dark colored rings is 20 years old. Each year of a tree's life is represented by a dark and a light part. The type of life that a tree has had can also be learned by looking at the rings. If rings are not even or concentric you can tell that a tree was leaning, or was growing in a windy area. You can also judge the health of a tree by how the rings are spaced.

All genetics follow Mendelian inheritance. True or False?

Answers

False. Mendelian genetics were based on the simple garden pea, on a plant with only 7 pair of contrasting traits. They don't take into account polygenic traits.

If you are administering a drug with a dosing rate of 50 mg/kg to a patient with a mass of 50 kg, how many mg of drug do you need to deliver to the patient?O 25 mg
O 2,500 mg
O 250 mg
O 2.5 mg
O 50 mg

Answers

0.330 and the 3 is what you rounded up

Final answer:

To calculate the dosage of a drug given in mg/kg for a person, multiply the dosing rate by the person's mass. In this case, the dosing rate is 50 mg/kg and the mass of the person is 50 kg, yielding a total dosage of 2,500 mg.

Explanation:

When administering a drug with a dosing rate that is given in mg/kg, you need to multiply the dosing rate by the patient's mass to determine the proper dosage. In this case, we use the formula:

Dose = Dosing rate × mass

Substituting the given values into the formula:

Dose = 50 mg/kg × 50 kg, which equals to 2,500 mg.

Therefore, you need to administer 2,500 mg of the drug to the patient.