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gogolik [260]
3 years ago
5

Which statement best describes echolocation in dolphins?

Biology
2 answers:
Anna71 [15]3 years ago
6 0
I believe that the correct answer is B
Kaylis [27]3 years ago
5 0

The right option is; b) Echolocation helps dolphins find food and avoid predators.

Echolocation is a physiological process by which several kinds of animals (such as dolphins and bats) use sound waves and echoes to determine the location of objects in space. Dolphins have the ability to use echolocation and their normal sight to determine some information such as the distance, speed, size and structure of objects in the water around them. This information helps dolphins find food and avoid predators in their environment.

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________________ is the name given to the clock signal that occurs evenly spaced time durations during which data signals are se
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Answer;

Bit clock

-Bit clock is the name given to the clock signal that occurs evenly spaced time durations during which data signals are sent in synchronous transmissions.

Explanation;

The term "bit clock" is used to describe a one cycle per sample "square wave" signal used for internal synchronization within digital audio equipment.

-In synchronous  transmission data signals are sent along with a clock signal which occurs at evenly spaced time duration referred to as the bit time. On the other hand, in asynchronous  Data signals are transmitted without an associated clock signal. The time spacing between data characters or blocks may be of arbitrary duration, meaning the spacing is not standardized. Therefore, frames require start and stop indicator flags.


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4 years ago
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babymother [125]

Answer:

Sexual reproduction is a process where two organisms create an offspring. It requires two parents, a sperm and an egg. Inherited traits can increase an organism's survival by having good traits such as survival skills like eating, walking etc.. It can decrease because some inherited traits might be diseases.

Explanation:

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Phantasy [73]

Answer:

1- Option A) describes an index fossil. Trilobite existed for a short time, but was abundant and lived in many locations.

2- Option B) Continents were once joined and have since drifted apart.

Explanation:

1) Fossils are animal and vegetable rests found in different strata of sedimentary rocks. Sedimentary layers deposit chronologically, so they are used to reflect history. They keep in each layer some of the forms of life that inhabited that area in the past. These fossils turn to be very useful while dating ages. The term Index fossils refer to those fossils that only existed in a given era or geological period during evolution.  

Index fossils must:    

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• Appear in different types of rocks

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2) The tectonic plates theory states that there is a continual movement of the crust. It explains the movement of the different plates and their directions and interactions. The continental drift theory explains how these movements have been taking place since millions of years ago. When continents were together in a unique continent, many species used to inhabit it. When plates started to separate, they took some of these species that got apart by the ocean. Some species were already dead and fossilized, while some other organisms died during continental drift and got fossilized after the divergence. <em>The existence of the same fossils, placed in the same layers and of the same age, suggests that they used to inhabit the same area and died during the same time, meaning that continents were together when they got fossilized. </em>

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