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brilliants [131]
4 years ago
12

Which of the following is an extinct group of mollusks related to today's chambered nautilus?

Biology
2 answers:
Nana76 [90]4 years ago
5 0

I took the test the correct answer is B. ammonites

saw5 [17]4 years ago
4 0
The answer is B. ammonites. 
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The light-harvesting complexes of a chloroplast are located in the ________; the enzymes of the calvin cycle reactions are locat
BartSMP [9]

The light-harvesting complexes of a chloroplast are located in the thylakoid membrane.

The enzymes of the calvin cycle reactions are located in the stroma.

Chloroplast, found in plant cells and some protists such as algae and cyanobacteria, is a cell organelle known as a plastid. Chloroplasts are oval-shaped and have two membranes: an outer membrane and an inner membrane.

The enzymes required during the calvin cyle reaction are present in the stroma while, thylakoid System is the internal membrane system consisting of flattened sac-like membrane structures called thylakoids where light energy is converted into chemical energy. Thylakoids contain the light-harvesting complex, including the electron transport chains used in photosynthesis and pigments like chlorophyll and carotenoids.

To know more about chloroplast visit the link:

brainly.com/question/13783340?referrer=searchResults

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4 0
2 years ago
A researcher is trying to design an experiment to measure the amount of energy a person uses during different activities. He pro
Tomtit [17]

The right answer is to measure the amount of released carbon dioxide.

The carbon dioxide exhaled by the lungs can reflect the energy consumed by the body since it comes from the degradation of glucose which is the main energy substrate. And this is a better indicator of energy consumption than measuring heart rate because it can be inflected by several factors.


A is false because glucose is not found in the urine, except in the case of diabetes mellitus.

C is false because the consumption of calories does not mean that we will directly use it.

D is wrong because perspiration is independent of energy consumption, this is a way to cool the body after exercise.

7 0
3 years ago
Read 2 more answers
An object has a kinetic energy of 32 J and a mass of 36 kg, how fast is the object moving?
marin [14]

Answer:

1.33 m/s

Explanation:

The formula for Kinetic Energy is given as:

K.E=\frac{1}{2} mv^{2} \\

Where, m is the mass and v is the velocity of the object. In order to tell how fast is the object moving we need to calculate its velocity.

Re-arranging the above equation and isolating v, we get

2 K.E = mv^{2}\\\\v^{2} = \frac{2 K.E}{m}

Putting values in this equation, we get:

v^{2}=\frac{2 \times 32}{36}\\\\ v^{2}=\frac{16}{9}\\\\ v=\frac{4}{3}\\\\  v=1.33

Thus, the object is moving with a velocity of 1.33 m/s

7 0
3 years ago
Genome editing techniques have been developed to exploit the CRISPR system of bacteria and archaea. Only the _____ component of
Bess [88]

Answer:

Cas9

Explanation:

Genome editing techniques have been developed to exploit the CRISPR system of bacteria and archaea. Only the Cas9 component of the system is used in editing.

7 0
2 years ago
Which is true of studies of height in children from around the
Mekhanik [1.2K]

Answer:

the first one is right..

4 0
3 years ago
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