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e-lub [12.9K]
2 years ago
7

1. Which of the following provides the best evidence that living things use and

Biology
1 answer:
Rina8888 [55]2 years ago
8 0

Answer:

b. The cells of living things contain molecules made of the elements carbon, hydrogen, and

oxygen, the same elements found in the glucose consumed by living things.

Explanation:

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What property makes phospholipids ideal building blocks for cell membranes?
Alenkasestr [34]

Answer:

The polarity of the phospholipid makes it ideal for a building block of cell membranes.

Explanation:

There is the tails which are hydrophobic (water fearing) and the heads which are hydrophilic (water loving). These properties of phospholipids allow the tails to go towards eachother and heads to face the water which maintains a solid structure allowing certain materials to pass through.

8 0
3 years ago
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Which of these describes passive immunity? A.It occurs on the binding sites of antibodies. B.It is immunity that occurs after yo
DENIUS [597]

Answer:

C

Explanation:

Becuase fom a vaccine you are recieving antibodies by another animal or human donor.

D is unlinkely since it describes how the mother is nursing the baby, so nothing directly mentioning of the baby recieving any antibodies. The other options also talk about how the body creates its own antibodies, which isn't passive immunity.

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2 years ago
Phytoplankton form the base of food webs, but are only present in the upper few hundred meters of the ocean. A number of factors
Ksenya-84 [330]

Answer:

The correct answer is d. Oxygen

Explanation:

Phytoplanktons are responsible for the fixation of approximately half of the global carbon therefore seawater has high CO2 concentration which is required by phytoplanktons to make their food.  

They are the primary producers of oceans and they are responsible to support the food chain of oceans. Factors that can limit their growth are mainly sunlight and nutrients like phosphorus, nitrogen, etc.

As phytoplanktons are photosynthetic they release oxygen itself as a byproduct therefore oxygen is not a limiting factor to phytoplanktons. So the right answer is d.

6 0
3 years ago
What percentage of rainwater actually soaks/infiltrates into the ground? 3% 5% 25%
Korvikt [17]

Answer:

5%

Explanation:

its an educated guess

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3 years ago
Which process produces messenger RNA strands that are complementary to the original DNA?
natali 33 [55]

Answer:c

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