Which statement about the composition of ocean water is true?

Dr. Kettlewelll predicted that clean forests would have _____________ colored moths, and polluted forests would have _________ c

Mashcka [7]

Answer:

Kettlewell thought that if natural selection caused the change in the moth population, the following must be true: Heavily polluted forests will have mostly dark peppered moths. Clean forests will have mostly light peppered moths. Dark moths resting on light trees are more likely than light moths to be eaten by birds.

4 0

2 years ago

Please help!

Ahat [919]

Answer:

Electrons Can Donate - 0

Electrons Can Receive- 2

Valence - 2

Explanation:

The electronic configuration of oxygen is $1s^2s^22p^4$ . Thus in the p-orbital there is deficiency of two electrons. Hence, it can receive/share electron but it cannot donate electrons. This makes oxygen as a good electron acceptor. Since there is a deficiency of two electrons in the outermost shell of oxygen, the valence of oxygen in thus -2

6 0

3 years ago

Look at the diagram of the food web. A decrease in the number of willow trees will MOST LIKELY affect which organism in the

elena-s [515]

Answer: what is the major environmental factor limiting the number of autotrophs at great. Which abiotic factor has the least effect on the ability of aerobic organisms to live and, all living things that directly or indirectly affect the environment are known as. Which statement about the release of chemicals by willow trees is correct?

Explanation:

3 0

3 years ago

Read 2 more answers

How does the size of a cell affect the diffusion of substances into a cell?

Dmitriy789 [7]

Diffusion is across a semi-permeable membrane. The larger the membrane, the longer the diffusion takes

3 0

2 years ago

During osmosis, which of the following will occur if the left side of a selectively permeable membrane has a higher solute conce

storchak [24]

Explanation:

Water molecules from the less conentrated right side, will flow into the left side til they equilibrate- at equilibrium both sides will have the same concentration of solute.

In diffusion small water molecules can move across the phospholipid bilayer acts as a semi-permeable membrane into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds. Similarly, during osmosis the water passes through the membrane due to the difference in osmotic pressure on either side of the phospholipid bilayer, this means that the water moves from regions of high osmotic pressure/concentration to regions of low osmotic pressure /concentration.