Enzymes catalyze chemical reactions in the human body. Which statement best describes how enzymes work?

A They speed up chemical reactions by increasing the activation energy.

B They slow down chemical reactions by increasing the activation energy.

C They speed up chemical reactions by lowering the activation energy.

D They slow down chemical reactions by lowering the activation energy.

Answer:

1.true

2.false

3.false

Answer:

so i belive ur talking about the corona vaccinations so my answer is below! :D

Explanation:

if you get vaccinated, you are helping yourself and other people because it is most likely that you wont get corona if u have a vaccine. When you dont get corona that means that there are less people dying and you will reduce the level of deaths because ur not gonna get corona and give it to someone else. Once you get the vaccine you still have to be protected and wear a mask when you go outside just in case to protect your self and someone elses life. So, thats why ur vaccination status affects more people than just you. :D

also i just realized that you might not be talking about the corona vaccinations and u can be talking about the normal vaccines but the paragraph that i just wrote can be meant for normal vaccines as well :)

Answer:

A and T

Explanation:

Hope this helps you!!!!

Answer:

Stem cells are the body's raw materials — cells from which all other cells with specialized functions are generated.

Embryonic stem cells are derived during early development at the blastocyst stage and are pluripotent, meaning that they can differentiate into any cell type. In contrast, adult stem cells are rare, undifferentiated cells present in many adult tissues.

hope this helps

Answer:

Glucose,

Explanation:

6 molecules of carbon dioxide are required, one of each carbon atom is glucose

Answer:

C. Tapeworm and human.

Answer:

Explanation:

1. A study conducted by Tangney, Baumeister, and Boone, indicates that self-control not only could predict GPA, but also better adjustment, better interpersonal, secure attachment, and more optimal emotional responses.

2. Start by slowing your thinking down. Take slow deep breaths. Take yourself to a quiet place. By learning how to recognize our inner emotions and thoughts, name them, and let them pass through us, we can practice more self-control, which also helps build greater agency.

Answer:

a

Explanation:

someone commented it.

Answer:

artificial selection

Explanation:

When farmers want two desirable traits in cows, they often breed individuals that have those traits in the hopes that the offspring will have both desirable traits. The practice is called Artificial selection.

Artificial selection is the process of identifying desirable qualities in plants and animals and then taking action to strengthen and pass those traits on to succeeding generations.

Artificial selection operates in a similar manner to natural selection, with the exception that in natural selection, these judgments are made by nature without human intervention.

Natural selection, sometimes summed up by the adage "survival of the fittest," is predicated on the following ideas: In the natural world, organisms give birth to more children than they can keep alive and reproduce. 

Therefore, When farmers want two desirable traits in cows, they often breed individuals that have those traits in the hopes that the offspring will have both desirable traits. The practice is called Artificial selection.

To learn more about Artificial selection, refer to the link:

https://brainly.com/question/12560443

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Answer:Ok so A few days before Day 14, your estrogen levels peak and cause a sharp rise in the level of luteinizing hormone (LH). LH causes the mature follicle to burst and release an egg from the ovary, called ovulation, on Day 14.At about day 14 in the menstrual cycle, a sudden surge in luteinizing hormone causes the ovary to release its egg. The egg begins its five-day travel through a narrow, hollow structure called the fallopian tube to the uterus. hope this helps have a nice night ❤️❤️❤️

Explanation:

Answer: Because However, during days 10 to 14, only one of the developing follicles forms a fully mature egg. At about day 14 in the menstrual cycle, a sudden surge in luteinizing hormone causes the ovary to release its egg. The egg begins its five-day travel through a narrow, hollow structure called the fallopian tube to the uterus. The egg travels down the fallopian tubes. If pregnancy doesn't occur, the egg is reabsorbed into the body. Levels of oestrogen and progesterone fall, and the womb lining comes away and leaves the body as a period (the menstrual flow). The time from the release of an egg to the start of a period is around 10 to 16 days.

Explanation:

Answer: Most soil organisms function best at the same temperatures people are comfortable at, or more specifically, in the 70s or low 80s F.

Answer:

an autosomal recessive disorder

Explanation:

Autosomal recessive disorders are inherited diseases caused by the presence of two copies (alleles) of an abnormal gene, thereby only homo-zygous recessive individuals are affected by this type of disease. In consequence, although both parents don't express the disease, they can be carriers and pass this recessive disorder to their offspring who express the disease. In this case, the pedigree shows that heterozygous parents are not affected but they are carriers of the recessive allele for this disease, thereby some offspring express the trait. The black circle (female) and the black square (male) indicate affected individuals in the pedigree chart. Since both parents are heterozygous, 1/4 (25%) of all offspring would be expected to have the autosomal recessive disorder.

Answer:

Krebs cycle, tricarboxylic acid cycle.

Explanation:

Cellular respiration is what cells do to break up sugars to get energy they can use. ... Usually, this process uses oxygen, and is called aerobic respiration. It has four stages known as glycolysis, Link reaction, the Krebs cycle, and the electron transport chain.

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules[1] or nutrients into adenosine triphosphate (ATP), and then release waste products.[2] The reactions involved in respiration are catabolic reactions, which break large molecules into smaller ones, releasing energy because weak high-energy bonds, in particular in molecular oxygen,[3] are replaced by stronger bonds in the products. Respiration is one of the key ways a cell releases chemical energy to fuel cellular activity. The overall reaction occurs in a series of biochemical steps, some of which are redox reactions. Although cellular respiration is technically a combustion reaction, it clearly does not resemble one when it occurs in a living cell because of the slow, controlled release of energy from the series of reactions.

Nutrients that are commonly used by animal and plant cells in respiration include sugar, amino acids and fatty acids, and the most common oxidizing agent providing most of the chemical energy is molecular oxygen (O2).[1] The chemical energy stored in ATP (the bond of its third phosphate group to the rest of the molecule can be broken allowing more stable products to form, thereby releasing energy for use by the cell) can then be used to drive processes requiring energy, including biosynthesis, locomotion or transport of molecules across cell membranes.

Answer:

Alternative Titles: cell respiration, tissue respiration. Discover how cellular respiration transforms your food into energy usable by your cells. Cellular respiration releases stored energy in glucose molecules and converts it into a form of energy that can be used by cells.

Explanation:

Answer: Genetic variation within a species can result from a few different sources. Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. ... As a result, the tree-colored moths are more likely to survive, reproduce, and pass on their genes

Explanation:

Answer:

The term 'designer baby' refers to a baby that has been given special traits through genetic engineering. This is done by altering the genes of the egg, sperm, or embryo. These traits can, in theory, vary from lower resistance to diseases to even gender selection

Hope that helps!

Answer:

Because the offspring are not getting genetic material from another organism.

Explanation:

Answer:

TRUE

Explanation:

To an evolutionary biologist, fitness simply means reproductive success and reflects how well an organism is adapted to its environment. ... Organisms which are better suited to their environment will reproduce more and so increase the proportion of the population with their traits.

Answer:

D

Explanation:

Hope this helps

Answer:

d

Explanation:

Answer:

1. use of the wrong antibiotic

2. use of insufficient concentration of the right antibiotic

Explanation:

MRSA means Methicillin-resistant staphylococcus aureus

VRSA means Vancomycin-resistant Staphylococcus aureus

These are resistant forms of the bacteria Staphylococcus aureus to the antibiotics mentioned.

Bacterial resistance to antibiotics occurs when bacteria develop mechanisms that protect them against the effects of previously effective antibiotics.

Misguided and inappropriate use of antibiotics results in resistance, and they mainly occur as a result of two activities:

1. Use of wrong antibiotics: antibiotics are chosen using a microbiological technique called 'sensitivity testing', to determine which antibiotic is effective against a bacterium. However, when antibiotics are taken without proper sensitivity testing, the bacteria develop resistance against such antibiotics.

2. Use of inadequate concentration of the right antibiotic: This involves using less than the minimum inhibitory of minimum bactericidal concentration of an antibiotic against a bacteria. In this case, the organism has ample time to evolve in the presence of the antibiotic, hence the occurrence of resistance.

Answer:

me no speak espanol

Explanation:

Answer:

1a, 2b, 7f, 4d, 3g, 5c, 6e

Explanation:

Answer:

The Leaves

Explanation:

Answer:

heres your answer

Explanation:

scientists knew that whales descended (evolved) from four-footed land mammals because whales and dolphins still have some features of land mammal: they use lungs to breathe air and give birth to young that are nursed by milk.

Answer:

Increasing the membrane area also increases the number of ATP and NADPH generating sites

Explanation:

Photosynthesis occurs in the chloroplast, more precisely in the membranes of the thylakoids that form stacks of disks called grana. A mature chloroplast may have 20 to 60 grana. In these membranes, there are photosystems, which are structural units of pigment-protein complexes that convert light energy from the sun into chemical energy stored in ATP and NADPH. A thylakoid may contain thousands of photosystems. In consequence, increasing the membrane area also increases the number of photosystems required for the synthesis of ATP and NADPH.

Answer:

a= Antidiuretic hormone(ADH)

b= melatonin

c= Insulin

d= parathyroid hormone (PTH)

e= growth hormone (GH)

f= luteinizing hormone (LH)

g= oxytocin

h= aldosterone

Answer:

2

Explanation:

There isnt much humus in soil in the deciduous biome