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3 years ago

What does a Euglena require to exhibit phototactic behavior?

Biology

1 answer:

pentagon [3]3 years ago

3 0

Answer:

Explanation:

Phototaxis (phototactic response) is the cellular behavior in which cells swim toward or away from the light source. The euglena have eyespots that detect light so that it can move toward sunlight for photosynthesis.

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What is the Primary cortex

VashaNatasha [74]

The primary motor cortex (Brodmann area 4) is a brain region that in humans is located in the dorsal portion of the frontal lobe.

6 0

3 years ago

Two members of the excavate clade that can cause disease are:______. a. euglenids and kinetoplastids. b. dinoflagellates and api

PIT_PIT [208]

Answer:

Two members of the excavate clade that can cause disease are diplomonads and parabasalids

Explanation:

The excavate clade comprises of unicellular organisms which are eukaryotic. This group contains free-living organisms as well as organisms which form symbiotic relationships.

The diplomonads can be described as a group of flagellates which are considered to be parasitic. Some of them are even parasites to the humans.

The parabasalids are a group of flagellated protists within the supergroup Excavata. These organisms also form parasitic relationships.

5 0

3 years ago

Is the introduction of contaminants into a natural environment that causes instabilitying organisms and the physical environment

Dahasolnce [82]

Answer:

ℴℴℴ

Explanation:

ℯℯ ℴ ℯ ℊ

6 0

3 years ago

german

Given what we know about nutrition, we can confirm that the runner's meal would have to contain 30 grams of protein.

The runner in question wishes to complete a two-hour run while expending 4kcal or calories per minute, for a total of 480kcal. Furthermore, the runner wishes for only 25% (120kcal) of this energy to come from a source of protein.

Since every gram of protein adds 4 calories of energy to the meal, and we have to account for 120 calories, the runner will have to consume 30 grams of protein to achieve the desired results.

To learn more visit:

brainly.com/question/1156426?referrer=searchResults

7 0

2 years ago

When a body is buried directly in the soil, both toxic chemical products of decomposition and nutrient-rich decomposition fluids

ValentinkaMS [17]

Cadaver Decomposition Island

- When a body is buried directly in the soil, then it is subject to decomposition by insects and microorganisms.

- During this process, a self-digestion of the cells occurs as well as anaerobic decomposition of animal proteins resulting in a release of various chemical components.

- This nutrient-rich fluid is trapped in the soil matrix for a long period of time resulting in the formation of Cadaver Decomposition Island

- The formation of Cadaver Decomposition Island is associated with increased microbial biomass and activity.

7 0

3 years ago