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2 years ago

Causes of over fishing

1 answer:

7 0

Answer: The causes of overfishing can change the size of fish remaining. When too many fish are taken out of the ocean or lakes it creates an imbalance that can erode the food web and lead to a loss of other important marine life, including vulnerable species; like sea turtles corals and seaweed.

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1. Tools and Instruments

mariarad [96]

Number one is B also number 2 is also B because I did it before

4 0

2 years ago

Can you identify the supergroups to which these protists belong?

uranmaximum [27]

Protists and Supergroups

Diatoms – SAR - Stramenopila

Foraminiferans – SAR - Rhizaria

Plasmodial slime molds - Unikonta - Amoebazoans

Trichomonas vaginalis - Excavata - Parabasalids

Giardia intestinalis - Excavata - Diplomonads

Dinoflagellates - SAR - Alveolata

Green algae - Archaeplastida- Chlorophytes

Brown algae - SAR-Stramenopila

Explanation:

Protists are the simplest eukaryotes. Due to their vast diversity of species, they are broadly divided into four supergroups or the clades. They are the Archaeplastida, Excavata, SAR clade, and Unikonta.

Archaeplastida: Interrelated with DNA sequence, cell structure, and endosymbiotic relationships. Divided into red algae, chlorophytes, charophyceans, and the plants. Eg, red algae, green algae, plants.

Excavata: Protists with cytoskeletal features like excavated grooves. This clade includes diplomonads, parabasalids, euglenozoans. Eg., Trichomonas and Giardia species

SAR: Protists interrelated with their DNA sequences and endosymbiotic relationships. Further divided into alveolata, stramenopila, and rhizaria. Eg., diatoms, dinoflagellates

Unikonta: Protists with flagella like structures, pseudopodia, genes fused together. Divided into amoebozoans and opisthokonts. These include slime molds, fungi, entamoebas, animals etc.

5 0

3 years ago

C2H5OH<br> How many elements are there in a molecule of<br> Ethanol shown in the above formula?

Svetllana [295]

Answer:

9 elements

Explanation:

there are 2 C

6 H

1 O

8 0

2 years ago

Read 2 more answers

List four ways that solutions can be separated

Ainat [17]

Evaporation
distillation
filtration
paper chromatography

7 0

2 years ago

Read 2 more answers

A heron, a large wading bird, is hunting in a pond that contains three types of prey: fish, frogs, and snakes. All three types o

r-ruslan [8.4K]

The preferred prey item would be frogs.

What is optimal foraging theory?

It is a theory in ecology that proposes that predating animals that get the most energy from minimal efforts are favored by natural selection.

In order words, selection forces prefer investing minimum energy in order to extract maximally available energy.

In this case, the heron needs to use the lowest time to harvest the maximum energy possible. Since all the preys offer the same amount of energy, the one that requires the lowest time would be preferable for the heron.

In other words, frogs would be the most preferable prey.

More on foraging theory can be found here: brainly.com/question/16970714

#SPJ12

4 0

1 year ago