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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?)

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

how does a phone get energy when charging it to a portable charger

Choose an ecosystem: Tropical Rain Forest, Temperate Rain Forest, Grasslands, Desert, Tundra, Fresh Water, Coral Reefs, or one of your choice. Make sure it includes, sun/chemicals, producer, primary consumer, secondary consumer, tertiary consumer, and a decomposer. Title and label your food chain.
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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.

Explain symbiosis in your own words.

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

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?

True or false Ribosomes are made in a special region of the nucleus called the nucleolus

What is another name for an animal that is only a primary consumer?
will give brainliest!!!!

what happens in sexual reproduction?

Consumers get energy from cellular respiration
true or false

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

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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?

HURRY!
Cellular respiration and photosynthesis have similar equations. Which additional resource is part of photosynthesis, but not cellular respiration? sunlight nitrogen carbon water

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

MARK BRAINLIEST 15 POINTS

Please help!!!!! I can’t figure it out

Differentiate between a cloth safety belt and a metal buckle in terms of thermal conductors and insulators.

What season is it if it is sleeting outside?

In genetic engineering
A
scientists add or change the genes on a chromosome.

B
natural selection is used to determine which traits to keep or eliminate.

C
dominant and recessive genes are mixed together randomly.

D
mitosis divides a cell into two equal parts.

Can someone please help me???


Sample Problem

A) Calculate the surface area. surface area of cube = number of faces × area of one face surface area of cube = 6(2 cm × 2 cm) surface area of cube = 24 cm 2

B) Calculate the volume. volume of cube = side × side × side volume of cube = 2 cm × 2 cm × 2 cm volume of cube = 8 cm 3

C) Calculate the surface area-to-volume ratio. A ratio is a comparison between numbers. It can be written by placing a colon between the numbers being compared.surface area : volume = 24 cm 2: 8 cm 3surface area : volume = 3 cm 2: 1 cm 3


Calculate: What is the surface area-to-volume ratio of a cube whose sides are 3 cm long?

A Calculate the surface area.

B Calculate the volume.

C Calculate the surface area-to-volume ratio

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Plasma is mostly made of _____.

water
waste
salt
nutrients

What determines whether a metamorphic rock is foliated or non-foliated?

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

When a bridge is built, is the knowledge of science or engineering used?

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 would happen if your organ systems stopped functioning properly?