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liq [111]
3 years ago
6

What 4 things help to keep blood flowing through the veins in one direction?

Biology
1 answer:
Elanso [62]3 years ago
7 0

Answer:

Valves in the veins keep blood flowing in the correct direction.

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1.) How do hurricanes form?
dalvyx [7]

Answer:

1.  there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.

2. Hurricanes are classified using the Saffir-Simpson Hurricane Wind Scale — a 1 to 5 rating that's based on maximum sustained wind speed, according to the National Hurricane Center.

3. When a hurricane strikes a coastal area, it brings a number of serious hazards. These hazards include heavy rains, high winds, a storm surge, and even tornadoes. Storm surge pushes seawater on shore during a hurricane, flooding towns near the coast. Heavy rains cause flooding in inland places as well.

Explanation:

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7 0
3 years ago
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Element Q is an element that has a metallic shininess, has good heat conductivity, and is very brittle. To which of the followin
vovangra [49]

Answer:

C. metals

Explanation:

Elements in the periodic table are grouped into metal and non-metals depending on their characteristics. Metals usually possess the following characteristics:

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- lustre i.e. ability to shine when polished.

- Good conductor of heat and electricity

Based on this above characteristics, element Q in this question is a METAL because it posseses the same qualities that a metal does.

6 0
3 years ago
Based on the concept of phylogeny, an organism that was ancestral to both the bacteria and eukaryota domains would exhibit which
Helen [10]
"It would have DNA." is the one among the following characteristics that would be exhibited based <span>on the concept of phylogeny, an organism that was ancestral to both the bacteria and eukaryota domains. The correct option among all the options that are given in the question is the third option or option "C". </span>
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3 years ago
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How does a dichotomous key help you identify unknown specimens based on their traits? Answer with details about the format and s
Aneli [31]
A dichotomous key helps you identify unknown specimens based on their traits because there are only two options available per trait. Selecting one from the two options (usually contrasting characteristics) from each step leads to smaller and smaller groups until the option is reduced to single and unique trait of an organism.

Considering you need to identify an organism. So, on the top of they key is animal with options: (a) with red blood cells and (b) no red blood cells. The option you will select is no red blood cells and under option b, you’re given two choices again: (a) hard bodies and (b) soft bodies. You’ll select soft bodies, then two options again are given: (a) with shell and (b) without shell. The option you’ll select would be without shell, and so on.
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3 years ago
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Which of the following would not be considered evidence that supports the modern theory of evolution?
Alex787 [66]

Answer:

a

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