BIOLOGY HIGH SCHOOL

How do the products and reactants of a chemical change compare?The mass of the products is greater than the mass of the reactants because energy is taken in by the reaction.

The mass of the products equals the mass of the reactants because the same matter is present.

The mass of the products equals the mass of the reactants because there is no energy involved in the reaction.

The mass of the products is less than the mass of the reactants because energy is given off by the reaction.

Answers

Answer 1
Answer: The correct answer for this question is "The mass of the products equals the mass of the reactants because the same matter is present."

All chemical reactions follow the Law of Conservation of Mass which states that mass cannot be created nor destroyed. This means that mass is constant before and after a process. If ever it seems like the mass is not the same, it is possible that the missing mass was converted to something else.

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The oral contraceptive pill, informally called "the pill" contains an estrogen and progesterone or a synthetic mimic of this hormone. The combination of these two hormones taken in the pill and circulating in the blood works becauseSelect one:a. The hormones cause the woman's body to mimic the activities of a pregnancy and disrupt the ovarian cycle, preventing ovulation.b. The hormones cause a thickening of the mucus plug at the cervix that prevents sperm from penetrating the womb and reaching the ovulated egg.c. The hormones create an acid condition in the vagina that acts as a spermicide.d. The hormones prevent the proliferative or secretory phase of the menstrual cycle and the embryo will have no place to implant.

Answers

Answer:a. The hormones cause the woman's body to mimic the activities of a pregnancy and disrupt the ovarian cycle, preventing ovulation

Explanation:

Pills either as real subtance or synthetic form(Placebo) exhibit effect on ovulation ,by suppressing it thereby mimicking pregnancy.

Since ovulation is suppressed fertilization can not take place,no egg/ovum is released to be fertilized by the sperms.

Final answer:

The pill works by releasing estrogen and progesterone into the body. These hormones prevent ovulation and thicken the mucus plug at the cervix, making it harder for sperm to reach the egg.

Explanation:

The oral contraceptive pill, also known as 'the pill', contains hormones that have two main effects. The first is that they change the hormonal balance in the woman's body, making it behave as if it is already pregnant. That's because the hormones estrogen and progesterone prevent ovulation—the release of an egg from the ovaries. Without an egg to fertilize, pregnancy can't occur.

The second effect is that these hormones change the lining of the womb to make it less likely to accept a fertilized egg, and they thicken the mucus plug at the cervix, making it more difficult for sperm to reach an egg in the uterus. So, the correct answers to your question are a and b.

Learn more about Oral Contraceptive Pill here:

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Plant cells have two organelles that animal cells do not contain. Name the two organelles that can be found only in plant cells and describe what each of those organelles do. Please answer soon

Answers

Cell wall and Chloroplast
Cell wall gives structure and protects the cell
Chloroplast helps with photosynthesis

Which of the following sets is an infinite set?A.){1, 2, 3 . . . 100}
B.)empty set
C.)the set of whole numbers less than one billion
D.)the set of natural numbers
E.)none of the above

Answers

Answer: the correct answer is D) The set of natural numbers.

A set that contains infinite number of elements is called as infinite set.

Natural numbers are those that start from one and go till infinity. Thus, set of natural number is infinite as this set contains infinite number of elements, satisfying the property of infinite set.

On the contrary, option A), B), and C) contains finite numbers, which can be counted. Thus, they are not the example of infinite set.

Thus, D) is the right answer.

Answer;

D.)the set of natural numbers

Explanation;

-A set is said to be an infinite set whose elements cannot be listed if it has an unlimited (i.e. uncountable) by the natural number 1, 2, 3, 4, ………… n, for any natural number n is called a infinite set. A set which is not finite is called an infinite set.

-Set A cannot be infinite because it only goes to 100 and Set B is empty so that also has nothing infinite. However set of Natural numbers as they continue number by number getting in to an bigger number is infinite.

-On the other hand; A set is said to be a finite set if it is either void set or the process of counting of elements surely comes to an end is called a finite set.

The largest scale of life, which can be thought of as the interaction of all of Earth's ecosystems, is called:

Answers

The correct answer to this question is biosphere. Biosphere is the largest scale of life, in which can be thought of as the interaction of all of Earth's ecosystem. It means that all life on Earth and the non-living elements that interacts with life.

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Answers

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a semipermeable membrane is placed between the following solutions. which solution will decrease in volume? mastering biology

Answers

Answer:

whichever solution has a lower concentration of the solute in it will lose volume as in osmosis water is attracted to the side with a higher volume of the solute
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