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Ivanshal [37]
3 years ago
14

Unit Test Which title best fits Rahma's notes? Rahma took these notes on a process involving the movement of molecules, but she

forgot to title them. O Active Transport in Cells -Causes molecules to move until they are evenly distributed -Moves from high concentration to low concentration -Has no need for added energy -Can occur with or without a membrane being present O Passive Transport in Cells O Osmosis O Diffusion​
Biology
3 answers:
Naddika [18.5K]3 years ago
6 0

Answer:

Active transport is what i'm going to go with because it makes the most sense and matches the statements

Explanation:

So therefore Active transport is your answer. (tell me if i'm wrong)

callie
2 years ago
YOU ARE WRONG The correct answer is DIFFUSION it is the movement of molecules. Molecules move from an area of high concentration to an area of low concentration. molecules become evenly distributed. Diffusion across the cell membrane occurs when molecules move from areas of high concentration to areas of low concentration. When diffusion is complete molecules are evenly distributed on both sides o the cell membrane. Diffusion does not require energy.
kicyunya [14]3 years ago
5 0

Answer:

passive transport

Explanation:

Clair2 years ago
0 0

It's active UwU

__________________________________

Trust me I know what I'm doing

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Which of the following does NOT describe the macronucleus of a paramecium?
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D. The macronucleus does not disintegrate during conjugation.

The macronucleus contains the working copies of genes needed to support an enormous cell. It is formed by a division of the fused diploid nucleus after conjugation followed by multiple rounds of internal gene replication which does not occurs in the micronucleus.
6 0
3 years ago
Which phrases are true of only the mantle? Check all that apply.
Over [174]

Answer:

i had to list all the facts cuz we didnt have a diagram

Explanation:

The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth's total volume.

7 0
3 years ago
Why are protozoa significant? Select all that apply. Protozoa contaminate the water supply. Protozoa do not contribute to a food
Luba_88 [7]

Answer: Protozoa contaminate the water supply.

Some protozoa are parasites and cause diseases like malaria.

Protozoa have an important role in the food chain.

Protozoa are parasitic or free living single celled eukaryotic organisms. They are mostly found in water bodies.

Protozoa contaminate the water supply: Some of the protozoan species which are released from the human feces usually contaminate thee water, and causes waterborne infections in humans. Examples are Cryptosporium and Giardia. The infection occurs through drinking water or swallowing water from swimming pool.

Some protozoa are parasites and cause diseases like malaria: The Plasmodium is the genus belonging to the protozoan parasites. This malarial parasite is transmitted by female Anopheles mosquitoes to humans. The parasite multiply in the red blood cells causes symptoms like fever, anemia, flue, illness and may also cause coma and death.

Protozoa have an important role in the food chain: The protozoa species plays many roles in the food chain, they act as consumers, predators or prey, herbivores and decomposers. Their main function is to control the population of other species in the same habitat. They engulf small single celled bacteria, hence prevents excessive bacterial colonization act as predator. They also feed upon the algal species therefore, act as herbivores. They act as decomposers, as they feed upon the organic matter present in the bottom of the aquatic water body. They are the source of food for large worm and insect species.


5 0
3 years ago
Read 2 more answers
What could a scientist do to determine what era the Eocene Period belongs to on the geologic time scale?
Burka [1]

Answer:

Option B) study information related to the Cenozoic era

Explanation:

The complete question is

Scientists discovered that the Eocene time period existed in Earths history around 34 MYA. What do they need to do to determine what time period Eocene belongs to on the geologic time scale?

A) learn what happened during Precambrian time

B) study information related to the Cenozoic era

C) view the timing of events in the Mesozoic era

D) research events that happened during the Paleozoic era

Solution -

The period of Eocene belong to the Cenozoic era. The Cenozoic era is divided into three periods-  

a) The Paleogene – Existed between 65.5 to 23.03 million years ago

b) The Neogene - Existed between 23.03 to 2.6 million years ago

c) The Quaternary – Started some 2.6 million years ago and is continuing till present

The Paleogene is subdivided into three epochs –  

A) The Paleocene – existed between 65.5 to 55.8 million years ago

B) The Eocene – existed between 55.8 to 33.9 million years ago and  

C) The Oligocene – existed between 33.9 to 23.03 million years ago

Hence, studying about Cenozoic era will give information about the Eocene epoch

Hence, option B is correct

5 0
3 years ago
The scientist is studying the processes for which cellular respiration provides
Sauron [17]

Answer:

Glucose molecules in the bloodstream are absorbed by a muscle cell

4 0
3 years ago
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