What type of protein helps molecules move through a
cell membrane?

Answers

Answer 1

Answer:

Answer:

Water channel proteins are helps the molecules move through a cell membrane.

Explanation:

this protein acts like a pore in the membrane that lets water molecules or small ions through quickly. This proteins (aquaporins) allow water to diffuse across the membrane at a very fast rate. Ion channel proteins allow ions to diffuse across the membrane.

Answer 2

Answer:

Answer:

Gated Channel protein

Explanation:

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Which of the following is not an abiotic limiting factor?Temperature

Water

Soil type

Organisms

Answers

the better answer is organism

How is energy associated with food stored?

Answers

As chemical energy, the body then absorbs that energy when the food is consumed

Energy is gained by food.

What are two different habitats in a prairie ecosystem and name one organism found in each habitat.

Answers

Tall grass prairie ecosystem; bison Short grass prairie ecosystem; striped skunk

Which of the following best explains ways in which fish and mammals differ? (2 points)Fish are invertebrates and have scales and paired fins, while mammals are vertebrates and have fur or hair.
Fish are ectothermic and lay eggs to reproduce, while mammals are endothermic and give live birth to offspring.
Fish are endothermic and have gills, while mammals are ectothermic and have lungs.
Fish have streamlined bodies and three-chambered hearts, while mammals are bipedal and have four-chambered hearts.

Answers

The answer is Fish are ectothermic and lay eggs to reproduce, while mammals are endothermic and give live birth to offspring.

Through the elimination process:
* Fish are invertebrates and have scales and paired fins, while mammals are vertebrates and have fur or hair. - Fish are vertebrates!
* Fish are endothermic and have gills, while mammals are ectothermic and have lungs. - Fish are ectothermic (cold-blooded), and mammals are endothermic (warm-blooded)!
* Fish have streamlined bodies and three-chambered hearts, while mammals are bipedal and have four-chambered hearts. - Fish have four chambered hearts and not all mammals are bipedal!

This leaves choice: Fish are ectothermic and lay eggs to reproduce, while mammals are endothermic and give live birth to offspring. All of this is true, but it should be taken into consideration that some fish give live birth and some mammals lay eggs, but this is the most possible choice among all mentioned.

Answer: Fish are ectothermic and lay eggs to reproduce, while mammals are endothermic and give live birth to offspring.

Explanation: Is correct answer

A scientist conducting an experiment quickly saw that she was not getting the results she expected. Instead of continuing to collect data, she went back to redesign the experiment until the data came out the way that the hypothesis predicted. The scientist’s work did not follow the scientific method. Which statement best explains why?

Answers

Answer:

The following is the correct answer: The scientist's work did not follow the scientific method as she failed to look at the data objectively by trying to get a desired result.

Explanation:

The scientific method is an empirical method of acquiring knowledge that is universally used within the scientific community. It involves careful observation, and the application of rigorous steps and a general notion of skepticism about everything that is being observed. The main objective of the scientific method is to obtain the most truth to reality and objective results possible. When the scientist decided to start with her experiment all over again because the results she was getting were not the ones she was expecting, she failed to properly follow the scientific method, as she was no longer looking for objective results but rather the ones she previously desired to get.

When her experiment didn't work, she changed her procedure instead of her hypothesis.

Hope I helped! :)

Which of the following statements about adaptive radiation is correct? View Available Hint(s) Which of the following statements about adaptive radiation is correct? Adaptive radiation occurs within a single lineage. Adaptive radiation occurs in species that live in one habitat. Adaptive radiation occurs very slowly over time. Adaptive radiation occurs in the presence of competitors.

Answers

Answer:

Adaptive radiation occurs within a single lineage

Explanation:

Adaptive radiation generally occurs when an organism enters a new area and different traits affect its survival. An adaptive radiation is a burst of evolution, creating several new species out of a single parent species, which simply means that adaptive radiation occurs when a single lineage produces many descendant species. Adaptive radiation is considered to be a rapid process, where adaptation from a recent common ancestor takes place in a short period of time (with respect to geological time, of course).

Final answer:

Adaptive Radiation refers to the process causing a rapid rate of speciation, within a single lineage, particularly when a single species invades various diverse environments. This process leads to multiple new species evolving from a single ancestral species. An established example illustrating this concept is Darwin's study of finches on the Galapagos Islands.

Explanation:

The correct statement about adaptive radiation is that it occurs within a single lineage. Adaptive radiation is a process that prompt multiple speciation events in a relatively short time, particularly when a single species invades different and diverse environments. Each of these invasions results in adaptational and evolutionary changes, leading to multiple new species originating from a single ancestral species.

For instance, Charles Darwin's study of finches on the Galapagos Islands is a classic example of adaptive radiation. The different beak shapes evolved over time in response to the different food sources available on the separate islands within the archipelago.