Please answer these questions. 100pts + Brainliest 1 In your own words, define the term science.
2 Why are hypotheses so important to controlled experiments?
3 How does a theory differ from a hypothesis?
4 How are both curiosity and skepticism useful in science?
5 How can peer review help scientists improve their work?
6 How is the use of science related to its context in society?
7 Why is testing ideas an important part of all science and engineering practices?
8 How do living things differ from nonliving things?
9 How do crosscutting concepts help unite the study of biology?
10 How can biology be studied at different scales, or levels?
11 Distinguish between an experimental group and a control group.

Chapter 2.1-2.2

12 Describe the major subatomic particles that make up an atom.
13 Explain why isotopes of an element have the same chemical properties.
14 Compare the physical and chemical properties of a compound to those of the
15 elements of which it is composed.
16 How do the isotopes of an element differ?
17 Describe the electric charges of the three main subatomic particles.
18 How does the behavior of an electron change when it forms a covalent bond?
19 What are the differences between ionic bonds and covalent bonds?
20 What does it mean when a molecule is said to be “polar”?
21 Why is water such a good solvent?
22 Explain with detail why water is polar?
23 What is a buffer? Why is it useful to cells?
24 What does the pH scale measure?
25 What property of water molecules allows water to dissolve many substances?
26 Why is water essential to all living things?

9. crosscutting concepts unite the study of biology by comparing and contrasting patterns; cause and effect; scale, proportion,and quantity; systems and systemmodels; energy and matter; structure and function; and stability and change.

10. The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

11. The treatment group (also called the experimental group) receives the treatment whose effect the researcher is interested in.

The control group receives either no treatment, a standard treatment whose effect is already known, or a placebo (a fake treatment).

12. An atom is composed of three major subatomic particles: protons, neutrons, and electrons. ... Electrons have a negative charge. The mass of a proton and neutron are approximately the same. Electrons have a significantly smaller mass compared to protons and neutrons (the mass of an electron is 1/1840 of a proton's mass).

13. Because each isotope of the element HAS THE SAME NUMBER OF ELECTRONS.

To a first approximation, the chemistry of an element depends on the exchange and sharing of electrons between atoms to make and break strong chemical bonds.

While isotopes has different numbers of neutrons, massive, neutrally charged, nuclear particles, they have the same number of protons, massive, positively charged, nuclear particles. And the neutral atom has therefore the SAME number of electrons, as the isotopes of a given element. And if there is the same number of electrons, the chemistry of that element is essentially the same.

Is this clear?

Just to add that the substitution of

1H by 2H

can introduce some change in the rate of chemical reaction. Look up the

kinetic isotope effect...

the answer to your question is:

c. complementary base-pairing

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles