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2. Using the classification tree shown, how would you classify an autotrophic diatom? Explain your reasoning.

Answer:

An autotrophic protist is a type of single-celled organism that can create its own food. The best-known group is the algae. Read this lesson to learn more about autotrophic protists and see some examples!

What Are Autotrophic Protists?

To answer this question, let's break it down into two parts. First, we have the term autotrophic. What does this mean? Well, an autotroph is an organism that can make its own energy, or food, typically by converting sunlight into usable components. The most common way this is done in nature is through photosynthesis. Organisms that cannot make their own energy, called heterotrophs, have to acquire energy by consuming other things.

Now we know what autotrophs are, but what are protists? A protist is a eukaryotic, microscopic organism. The term eukaryotic means the cells are organized into specific structures. A protist may be single-celled or multi-celled. Protists usually require an aquatic environment to thrive, though this may be salt or fresh water.

Characteristics and Examples of Autotrophic Protists

By knowing what each part of the name means, we already know a lot about autotrophic protists. They make their own food through the process of photosynthesis, and they are very small, eukaryotic organisms that usually live in some type of water. What else do we need to know? The largest group of autotrophic protists is collectively called algae. You have probably heard of algae before, even if you didn't know that they were classified as autotrophic protists! We can break the algae down into more specialized groups based on the shape of their cells and the type of photosynthetic pigments they use: the most common examples are green algae, red algae, brown algae, and golden algae.

Let's take a look at each of these. First, we have green algae. This type uses the pigments chlorophyll a and chlorophyll b to aid in the process of photosynthesis, resulting in the organism having a green tint in color. Green algae may be unicellular, multicellular, or live in colonies, and species use both asexual and sexual reproduction techniques.

The green algae, Micrasterias, as seen under a microscope.

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Next, we have red algae. Unlike green algae, which comes in a variety of cellular forms, most red algae are multicellular. Like the name suggests, red algae lack certain types of chlorophyll and rely on red light wavelengths to create energy. As a result, they can live in deeper waters than the green algae (red light penetrates deeper into water than other wavelengths). Some red algae reproduce asexually by releasing spores, while others may utilize sexual reproduction.

Red algae, as seen under a microscope.

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Brown algae are different from the previous two types - they are all multicellular and can be larger in size, even visible to the naked eye. Brown algae rely on the pigment fucoxanthin in photosynthesis, and this pigment gives them their brown color. (Isn't it convenient how algae are often classified by their color?)

PLZZZZZZZZZZZZZZZZZZZZZZZ HELP ME THIS DUE TODAY PUT IT IN YOUR OWN WORDSSSSSSSSSSSSSSSSSS
1. Where does the body get glucose molecules?


2. Where does the body get amino acids?


3. Where does the body get oxygen?


4. What do you think could happen if the human body doesn’t take in one or all of these molecules? Why do you think this?

True or false: pressure is measured in units called atmospheres (atm).

Hemoglobin is _____.

needed for the transport of oxygen
only found in type A blood
carried by white blood cells
needed by platelets to clot

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Giant anteaters live in Central and South America. As their name suggests, they eat ants and termites. First, an anteater tears open insect nests with its long claws. Then, it extends its extremely long, sticky tongue into the nest to catch its prey. One anteater eats 35,000 ants and termites in a day.


Look at the table showing the Linnaean levels of classification for the giant anteater. Then create the scientific name for this species. Choose the best option for each part of the name. (What is its scientific name?)



Kingdom Animalia

Phylum Chordata

Class Mammalia

Order Pilosa

Family Myrmecophagidae

Genus Myrmecophaga

Species tridactyla

Group of answer choices

Eukarya mammalia

Myrmecophagidae Chordata

Myrmecophaga tridactyla

Giantus anteaterus

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Question 21 pts
2. Which domain do anteaters belong to?







Group of answer choices

Eukarya

Bacteria

Prokarya

Animalia

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Question 31 pts
3. The platypus is an egg-laying mammal from Australia. The male platypus has venomous stingers on his back feet that he uses to stab and poison enemies. The poisonous chemicals in platypus venom are also found in other animals. Some snakes, lizards, starfish, and sea anemones have very similar chemicals in their venom.

How did all these animals end up using similar poisons?





Group of answer choices

All the animals are in the same genus.

All the animals are closely related to each other.

All the animals evolved from a common, venomous ancestor.

All the animals evolved similar characteristics by convergent evolution.

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Question 41 pts
4.

Taxonomists first classified aardvarks as close relatives of anteaters. Later, they moved aardvarks to a completely different order within the mammals. How do taxonomists decide classification of organisms in the Linnaean system?



Group of answer choices

All the animals are in the same genus.

All the animals are closely related to each other.

All the animals evolved from a common, venomous ancestor.

By similar characteristics or observable features.

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Question 51 pts
5.

During an experiment, India examines prepared slides that her teacher has given her. One of the slides shows a single-celled organism that lives in soil. It has a nucleus and several internal structures. To which domain does the organism most likely belong?



Group of answer choices

Archaea

Bacteria

Eukarya

Protista

Yo can someone help me out

Describe the contributions to the modern classification made by Carolus
Linnaeus.

What the difference between the one with the red dot and the one with the solid red. Explain the whole thing in general actually. If you can. THX

Explain symbiosis in your own words.

What is another name for an animal that is only a primary consumer?
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how does a phone get energy when charging it to a portable charger

Living cells are classed as either prokaryotic or eukaryotic. Which of the following characteristic(s) identify both cell types, eukaryotic cells and prokaryotic cells? Select all that apply.
1.Have membrane-bound organelles
2.Comprise most multi-celled organisms
3. Have a nucleus
4. Contain DNA
5. Are produced by division of another cell
6. Are the smallest unit of living matter
7. Mostly single-celled organisms
8. Contain cytoplasm

which of the following is an example of asexual reproduction?
a. two cats having a litter of kittens
b. a pair of birds has a nest full of eggs that hatch into chicks
c. an amoeba undergoing mitosis
d. an apple tree getting pollinated and producing fruit with seeds

What is mutualism? Give two examples.
What is commensalism? Give two examples.

Plasma is mostly made of _____.

water
waste
salt
nutrients

PLEASE HELP ME I HAVE 7 MINUTES LEFT


Which two factors are used to calculate the kinetic energy of an object?

gravity and velocity

velocity and mass

mass and volume

volume and height

Which statements correctly describe characteristics of cells? Check all that apply.

Hey! Please help! 7th-grade science!!
1. When recommending solutions to decrease human impact, which location were you able to make the greatest positive impact? Please explain your selection by using data from the simulation.


2. What recommendations would you give to your local community to help to decrease the local effects of human impact on the environment? List 2 recommendations and how they will positively impact your community.


3. What recommendations would you give to the global governments to help decrease the global effects of human impact on the environment? List 2 recommendations and how they will positively impact our planet.

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Does it matter if all dichotomous keys for the same group of organisms are different?

What the difference between the one with the red dot and the one with the solid red. Explain the whole thing in general actually. If you can. THX

Consumers get energy from cellular respiration
true or false

Where are particles gained or lost to form ions? X or Y

Can someone please explain to me how particles in a solid can vibrate back and forth? I'll give brainliest!!! Big Time... This is a physical science question, but I am just putting it as a biology question because physical science is not an option...

the figures below represents two chromosomes from an animal. using the table below that describes the traits carried on chromosome #6, which trait can the animal inherit only from its mother? how do you know this?

Which of the following is true?
1. prokaryotic cells are more complex than eukaryotic cells
2. all cells have a cell membrane and a cell wall
3. mitochondria convert glucose and oxygen into ATP energy for the cell
4. prokaryotic cells do not have DNA
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yo can someone help me out

How is the human body similar to an airplane?

Could somebody please tell me what I’m suppose to do there?

“Collect and present information on US hurricanes and Typhoons/Cyclones that have hit Asia.”

Does it mean for me to collect information on “US hurricanes and Typhoons/Cyclones”that have hit Asia

Or does it mean “US hurricanes” and “Typhoons/Cyclones that have hit Asia”

Please help I don’t get it

Place the following in order from smallest to largest.

Organ
Cell
Body System
Tissue

he diagram below represents a cross between two pea plants. Rr X Rr. In pea plants, the allele for round seeds (R) is dominant to the allele for oval reeds (r). In a cross between two plants above what percentage of the offspring will have round seeds?

a. 100%
b. 75%
c. 50%
d. 25%

Help pls just do number 4....
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