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MArishka [77]
3 years ago
10

Question 4 of 10 What is a water molecule made of? O A. One hydrogen atom and two oxygen atoms O B. One carbon atom and two oxyg

en atoms O C. One oxygen atom and two hydrogen atoms D. One carbon atom and four hydrogen atoms SUE​
Biology
1 answer:
amid [387]3 years ago
8 0

Answer:

A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom.

Explanation:

i hope this help if it didnt message me and ask me again for help

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The process of natural selection
Stella [2.4K]

Answer:

3. shapes the genetic characteristics of a species as a consequence of adaptation

Explanation:

Natural selection is a process characterized by how plants and animals that are able to adapt to changes in their environment are able to survive and reproduce while those that are unable to adapt do not survive.

In natural selection, those variations in the genotype which increases an organism’s chances of survival and procreation are preserved and multiplied from generation to generation at the expense of less advantageous variations.

Natural selection is a way of enhancing the preservation of a group of organisms that are best adjusted to the physical and biological conditions of their environment and may also result in their improvement in some cases.

6 0
3 years ago
Choose the statements below that are true.
Troyanec [42]

Answer:

Cells are the smallest unit of life. This is true.

Cells are important to the structure and function of living things. This is true.

All organisms are made of multiple cells. This is false, because there are many single celled organisms like bacteria.

Cells come in different shapes and sizes. This is true, as there are cells with a variety of shape and size (round shaped cocci and the elongated and flat bacillus). There are cells from squid's nervous system, called the neurons, that are comparatively very large in size than the vast majority of the other cells.

8 0
3 years ago
in pea plants round seeds are dominant and wrinkled seeds are recessive. the cross rr x rr, what percentage of the offspring wil
In-s [12.5K]

Answer:

0%

Explanation:

Round = Dominant

Wrinkled = recessive

Recessive = r

Dominant = R

homozygous dominant = RR

homozygous recessive = rr

Heterozygous= Rr

Since both seeds are homozygous recessive (rr)

In your punnet square, one lower case r will go on the top and the left side

r r

r

r

Something like that.

Go across your four boxes and you will end up with;

rr, rr

rr, rr

In order for it to be round, at least one box would need to have to be a heterozygous(Rr) or be a homozygous dominant.

7 0
1 year ago
What are growth and decay formulas
charle [14.2K]

Answer:

Exponential Growth: y = a(1 + r)x

Exponential Decay: y = a(1 - r)x

Explanation:

Remember that the original exponential formula was y = abx.

You will notice that in these new growth and decay functions,

the b value (growth factor) has been replaced either by (1 + r) or by (1 - r).

The growth "rate" (r) is determined as b = 1 + r.

The decay "rate" (r) is determined as b = 1 - r

6 0
3 years ago
which process requires no energy from the cell? exocytosis, endocytosis, active transport or facilitated diffusion?
Vera_Pavlovna [14]
<span>Facilitated Diffusion-
Does not use energy. Membranes in the cell membrane pick up molecules & carry them across the membrane from high to low concentration</span>
5 0
3 years ago
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